Boost History

Version 1.55.0

Mon, 11 Nov 2013 11:50:20 -0800

Other Downloads

Windows binaries
PDF documentation (only for BoostBook based documentation).

News

Support was removed from Config for some very old versions of compilers. The new minimum requirements are:

Digitial Mars 8.41
GCC 3.3
Intel 6.0
Visual C++ 7.1

Note: This is just the mininimum requirements for Config. Some Boost libraries may have higher mininimum requirements and not support all platforms or compilers.

Other compilers are currently unchanged, but we are considering removing support for some other old compilers. Candidates for removal are:

Metroworks C++ (i.e. codewarrior)
SunPro 5.7 and earlier
Borland C++ Builder 2006 (5.82) and earlier

If you're using any of these, please let us know on the mailing lists. We will take into account any feedback received before making a decision.

Known Bugs with Visual Studio 2013/Visual C++ 12

Visual Studio 2013 was released quite late in the release process, so there exist several unresolved issues. These include:

Serialization can't compile because of a missing include.
Using has_member_function_callable_with from Boost.Container's allocator_traits causes a compile error (#9332).
In libraries such as Unordered and MultiIndex, calling overloaded functions with initializer lists can result in a compile error, with Visual C++ claiming that the overloads are ambiguous. This is a Visual C++ bug and it isn't clear if there's a good workaround. This won't affect code that doesn't use initializer lists, or uses an initializer list that doesn't require an implicit conversion (i.e. an initializer list of the container's exact value type).
Thread: ex_scoped_thread compile fails (#9333).

Patches

Log patch: fixes incorrect output of the dump manipulator, when used on AVX2-enabled CPU (e.g. Intel Haswell).

New Libraries

Predef: This library defines a set of compiler, architecture, operating system, library, and other version numbers from the information it can gather of C, C++, Objective C, and Objective C++ predefined macros or those defined in generally available headers, from Rene Rivera.

Updated Libraries

Accumulators:
- #7915 Fix silly typos.
- #8850 Fix MSVC warnings.
- #8262 Rename average to fdiv.
Any:
- boost::bad_any_cast exception is now visible across modules #8751.
- Added clear() member function.
- Added missing BOOST_NOEXCEPT.
- Fixed issue with const rvalues #9215.
Asio:
- Implemented a limited port to Windows Runtime. This support requires that the language extensions be enabled. Due to the restricted facilities exposed by the Windows Runtime API, the port also comes with the following caveats:
  - The core facilities such as the io_service, strand, buffers, composed operations, timers, etc., should all work as normal.
  - For sockets, only client-side TCP is supported.
  - Explicit binding of a client-side TCP socket is not supported.
  - The cancel() function is not supported for sockets. Asynchronous operations may only be cancelled by closing the socket.
  - Operations that use null_buffers are not supported.
  - Only tcp::no_delay and socket_base::keep_alive options are supported.
  - Resolvers do not support service names, only numbers. I.e. you must use "80" rather than "http".
  - Most resolver query flags have no effect.
- Fixed a regression (introduced in Boost 1.54) where, on some platforms, errors from async_connect were not correctly propagated through to the completion handler (#8795).
- Fixed a Windows-specific regression (introduced in Boost 1.54) that occurs when multiple threads are running an io_service. When the bug occurs, the result of an asynchronous operation (error and bytes transferred) is incorrectly discarded and zero values used instead. For TCP sockets this results in spurious end-of-file notifications (#8933).
- Fixed a bug in handler tracking, where it was not correctly printing out some handler IDs (#8808).
- Fixed the comparison used to test for successful synchronous accept operations so that it works correctly with unsigned socket descriptors (#8752).
- Ensured the signal number is correctly passed to the completion handler when starting an async_wait on a signal that is already raised (#8738).
- Suppressed a g++ 4.8+ warning about unused typedefs (#8980).
- Enabled the move optimisation for handlers that use the default invocation hook (#8624).
- Clarified that programs must not issue overlapping async_write_at operations (#8669).
- Changed the Windows HANDLE backend to treat ERROR_MORE_DATA as a non-fatal error when returned by GetOverlappedResult for a synchronous read (#8722).
- Visual C++ language extensions use generic as a keyword. Added a workaround that renames the namespace to cpp_generic when those language extensions are in effect.
- Fixed some asynchronous operations that missed out on getting async_result support in Boost 1.54. In particular, the buffered stream templates have been updated so that they adhere to current handler patterns (#9000, #9001).
- Enabled move support for Microsoft Visual Studio 2012 (#8959).
- Added use_future support for Microsoft Visual Studio 2012.
- Removed a use of std::min in the Windows IOCP backend to avoid a dependency on the <algorithm> header (#8758).
- Eliminated some unnecessary handler copies.
- Fixed various minor and cosmetic issues in code and documentation (including #8347, #8950, #8953, #8965, #8997).
Atomic:
- Added support for 64-bit atomic operations on x86 target for GCC, MSVC and compatible compilers. The support is enabled when it is known at compile time that the target CPU supports required instructions.
- Added support for 128-bit atomic operations on x86-64 target for GCC and compatible compilers. The support is enabled when it is known at compile time that the target CPU supports required instructions. The support can be tested for with the new BOOST_ATOMIC_INT128_LOCK_FREE macro.
- Added a more efficient implementation of atomic<> based on GCC __atomic* intrinsics available since GCC 4.7.
- Added support for more ARM v7 CPUs, improved detection of Thumb 2.
- Added support for x32 (i.e. 64-bit x86 with 32-bit pointers) target on GCC and compatible compilers.
- Removed dependency on Boost.Thread.
- Internal lock pool now includes proper padding and alignment to avoid false sharing.
- Fixed compilation with Intel compiler on Windows. Removed internal macro duplication when compiled on Windows.
- Some code refactoring to use C++11 features when available.
Chrono:
- Fixed Bugs:
  - #7868 chrono_io parses time incorrectly (1.53 and 1.52)
  - #9028 Typo in boost/chrono/stopwatches/formatters/base_formatter.hpp
  - #9147 uninitialized std::tm
Circular Buffer:
- Added support for rvalue references and rvalue references emulation using Boost.Move. Values are moved only if value type has noexcept move constructor and noexcept move assignment operator #7888. Now Circular Buffer is usable with move-only types.
- Much better documentation.
- #5362 circular_buffer does not compile with BOOST_NO_EXCEPTIONS.
- #7025 circular buffer reports warning: " type qualifiers ignored on function return type" while compile.
- #7950 Eliminate W4-warnings under VS2005 - warning C4913: user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used.
Config:
- Breaking change: Removed support for some older compilers. The new minimum compiler versions are:
  - Digitial Mars 8.41
  - GCC 3.3
  - Intel 6.0
  - Visual C++ 7.1
  Other compilers are unchanged.
Container:
- Implemented SCARY iterators.
- Fixed bugs #8269, #8473, #8892, #9009, #9064, #9092, #9108.
Context:
- #8650 SSE2 intrinsics
Coroutine:
- New interface (unidirectional data transfer).
- #8782 no best alternative
- #8801 auto-linking
Filesystem:
- Fixed Android compilation #8706.
Fusion:
- #8759 specialization of convert_impl for map_tag
Geometry:
- Additional functionality
  - Added centroid for segment type
  - Added intersects() and disjoints() for Segment-Box and Linestring-Box
  - Added rtree creation using packing algorithm
  - Added contains() and covers() spatial query predicates
  - Added iterative queries
- Bugfixes
  - In some cases .back() or .clear() was called, violating the usage of Concepts. Fixed for the reported cases
- Solved tickets
  - 6958 Intersection generates self-intersection. Caused by spike, fixed
  - 8364 Invalid input exception, caused by spikes in previous steps, fixed
  - 8365 Invalid input exception, caused by spikes in previous steps, fixed
  - 8969 boost::geometry::model::point single argument constructor should be explicit
  - 8825 Patch adding member variable documentation to doxygen_xml2qbk
  - 8652 Intersection fails for triangle-triangle intersection. Caused by spike, fixed
  - 9047 Boost files that include themselves (strategies/intersection.hpp), fixed
Graph:
- void is no longer allowed as a bundled property type (for example, in the VertexProperties template parameters to graph types); it did not work reliably before, but a static assertion now forbids it entirely. Use boost::no_property instead.
- Added support for finish_edge visitor event point in depth-first search; the change should be backward-compatible with visitors that do not have that member function.
- Disabled building of tests on Sun compiler.
- Multiple source vertices are supported in non-named-parameter versions of breadth_first_visit, breadth_first_search, dijkstra_shortest_paths, and dijkstra_shortest_paths_no_init. This feature is not yet documented; to use it, replace the single parameter for the source vertex in each of these functions by two input iterators of the same type containing the source vertices to use.
- Added Hawick circuits algorithm; contributed by Louis Dionne.
- Added edge coloring algorithm; contributed by Maciej Piechotka.
- Added min-cost max-flow algorithm; contributed by Piotr Wygocki.
- Bugs and feature requests from Trac fixed: #5269, #8317, #8433, #8791, #8877, #8986, #9012, #9080.
Hash:
- Simplify a SFINAE check so that it will hopefully work on Sun 5.9 (#8822).
- Suppress Visual C++ infinite loop warning (#8568).
Interprocess:
- Fixed bugs #7156, #7164, #8277, #8976, #9065, #9073, #9008.
Intrusive:
- Source breaking: Deprecated xxx_dont_splay functions from splay containers. Deprecated splay_set_hook from splay containers, use bs_set_hook instead. Both will be removed in Boost 1.56.
- ABI breaking: Hash containers' end iterator was implemented pointing to one-past the end of the bucket array (see #8698) causing severe bugs when values to be inserted where allocated next to the bucket array. End iterator implementation was changed to point to the beginning of the bucket array.
- Big refactoring in order to reduce template and debug symbol bloat. Test object files have been slashed to half in MSVC compilers in Debug mode. Toolchains without Identical COMDAT Folding (ICF) should notice size improvements.
- Implemented SCARY iterators.
Lexical cast:
- std::bad_alloc exceptions are now are not converted to boost::bad_lexical_cast #8966.
- Added static assert that checks for std::numeric_limits specializations if they are required for conversion. Use BOOST_HAS_INT128 for detecting 128 bit integers support #8790.
- Documentation improved and more usage examples added.
Log:
- General changes:
  - Added a new configuration macro BOOST_LOG_WITHOUT_DEFAULT_FACTORIES. By defining this macro the user can disable compilation of the default filter and formatter factories used by settings parsers. This can substantially reduce binary sizes while still retaining support for settings parsers.
  - Rewritten some of the parsers to reduce the compiled binary size. The rewritten parsers are more robust in detecting ambiguous and incorrect input.
  - The following headers are deprecated: boost/log/utility/intrusive_ref_counter.hpp, boost/log/utility/explicit_operator_bool.hpp, boost/log/utility/empty_deleter.hpp. These headers will be removed in future releases. The contents of these headers were moved to other libraries.
- Bug fixes:
  - Fixed timer attribute generating incorrect time readings on Windows on heavy thread contention when QueryPerformanceCounter API was used.
  - Fixed a bug in the filter parser that prevented using parsed filters with some attributes.
  - Fixed thread id formatting discrepancies between the default sink and formatters.
  - Closed tickets: #8815, #8819, #8915, #8917, #9139, #9140, #9153, #9155.
- See changelog for more details.
Math:
- Suppress numerous warnings (mostly from GCC-4.8 and MSVC) #8384, #8855, #9107, #9109..
- Fixed PGI compilation issue #8333.
- Fixed PGI constant value initialization issue that caused erf to generate incorrect results #8621.
- Prevent macro expansion of some C99 macros that are also C++ functions #8732 and #8733..
- Fixed Student's T distribution to behave correctly with huge degrees of freedom (larger than the largest representable integer) #8837.
- Make some core functions usable with long double even when the platform has no standard library long double support #8940.
- Fix error handling of distributions to catch invalid scale and location parameters when the random variable is infinite #9042 and #9126.
- Add workaround for broken <tuple> in Intel C++ 14 #9087.
- Improve consistency of argument reduction in the elliptic integrals #9104.
- Fix bug in inverse incomplete beta that results in cancellation errors when the beta function is really an arcsine or Student's T distribution.
- Fix issue in Bessel I and K function continued fractions that causes spurious over/underflow.
- Add improvement to non-central chi squared distribution quantile due to Thomas Luu.
Move:
- Fixed bugs #7952, #8764, #8765, #8842, #8979.
Meta State Machine:
- New feature: interrupt states now support a sequence of events to end the interruption.
- Fixed Trac #8686.
Multiprecision:
- Added support for Boost.Serialization.
- Suppressed some GCC warnings. See 8872.
- Fixed bug in pow for large integer arguments. See 8809.
- Fixed bug in pow for calculation of 0[super N]. See 8798.
- Fixed bug in fixed precision cpp_int IO code that causes conversion to string to fail when the bit count is very small (less than CHAR_BIT). See 8745.
- Fixed bug in cpp_int that causes left shift to fail when a fixed precision type would overflow. See 8741.
- Fixed some cosmetic warnings from cpp_int. See 8748.
- Fixed calls to functions which are required to be macros in C99. See 8732.
- Fixed bug that causes construction from INT_MIN, LONG_MIN etc to fail in cpp_int. See 8711.
Multi-index Containers:
- Boost.MultiIndex has been brought to a higher level of compliance with C++11.
  - multi_index_container is now efficiently movable.
  - Initializer lists supported.
  - Emplace functions provided.
  - Non-copyable elements (such as std::unique_ptr<T>) supported. This includes insertion of a range [first,last) where the iterators point to a type that is convertible to that of the element: no copy construction happens in the process.
  - Random access indices provide shrink_to_fit().
  Refer to the compiler specifics section for limitations on pre-C++11 compilers.
- The following classes are deprecated:
- Maintenance fixes.
MPI:
- Replaced calls to deprecated MPI functions
- Added support for multi-threaded initialization
- Added in-place collectives
Phoenix:
- #9049 phoenix::function constructor is constexpr.
Polygon:
- Updated CGAL part of the Voronoi benchmark with patches from Sebastien Loriot. Updated documentation.
- Added polygon decomposition capability to polygon_90_set_data container (patch from Intel). Updated documentation.
- Bugs fixed from Trac: #8197.
PropertyMap:
- dynamic_properties objects can now be built by non-destructively chaining .property(name, pm) calls. Example:
```
boost::dynamic_properties()
  .property("color", color_map)
  .property("pos", position_map)
```
- The use of raw pointers as property maps is deprecated; it often failed on Visual Studio in the past. This usage has been removed from all tests and examples in Boost.Graph. The replacement to use for vertex properties in graphs (the most common use for this feature) is:
```
boost::make_iterator_property_map(
  <pointer or container .begin() iterator>,
  get(boost::vertex_index, <graph object>))
```
  (Note: the lack of namespace qualification on get() in this code is necessary for generic code). Outside a graph context, the closest equivalent is:
```
boost::make_iterator_property_map(
  <pointer>,
  boost::typed_identity_property_map<std::size_t>())
```
  There are commented-out static assertions on lines 151 and 159 of <boost/property_map/property_map.hpp> that can be un-commented to find deprecated uses of pointers in user code.
Rational:
- Added lowest and max_digits10, members of std::numeric_limits added in C++11, to the unit-test code. Needed since Boost.Test refers to one of them when compiled in C++11 mode.
- Changed initialization of some internal variables to something that cannot be a narrowing conversion, which fixes issue #5855. Needed since narrowing conversions are an error in C++11.
SmartPtr:
- Added boost/smart_ptr/intrusive_ref_counter.hpp header, extracted from Boost.Log. The header implements a mixin base class that adds support for intrusive_ptr to user's classes.
Thread:
- New Features:
  - #8519 Synchro: Update class barrier with a completion function.
  - #8515 Async: Add shared_future::then.
  - #8519 Synchro: Update class barrier with a completion function
  - #8615 Async: Replace make_future/make_shared_future by make_ready_future.
  - #8627 Async: Add future<>::unwrap and unwrapping constructor.
  - #8677 Async: Add future<>::get_or.
  - #8678 Async: Add future<>::fallback_to.
  - #8891 upgrade_to_unique_lock: missing mutex() function.
  - #8955 Request for more efficient way to get exception_ptr from future.
- Fixed Bugs:
  - #7461 detail::win32::ReleaseSemaphore may be called with count_to_release equal to 0
  - #8070 prefer GetTickCount64 over GetTickCount
  - #8768 win32 condition_variable::wait_until infinite wait in rare cases.
  - #8817 Boost Thread Windows CE _createthreadex handling breaks mingw w64.
  - #8943 Failed to compile code using boost::call_once with Intel C++ Composer XE 2013 on Windows.
  - #8931 Typos in external_locking reference.
  - #9029 Misprint in documentation.
  - #9037 gcc -Wshadow gives warnings in condition_variable{,_fwd}.hpp.
  - #9041 Boost.Thread DSO's may need to link with Boost.Atomic.
  - #9048 boost::scoped_thread useless ctor with variadic template arguments.
  - #9079 Condition variable will wait forever for some timepoint values (Win).
Timer:
- Fixed compilation on Intel compiler #8956.
Type Traits:
- Added is_copy_contructible trait #8802.
Unordered:
- Avoid some warnings (#8851, #8874).
- Avoid exposing some detail functions via. ADL on the iterators.
- Work around variadic parameter bug in Visual Studio 2013. The compiler still has problems with initializer lists, but it might not be possible to work around those.
Utility:
- boost::result_of can be set to use TR1 protocol by default and fall back to decltype if the function object does not support it (like C++11 lambda functions, for example). Define BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK configuration macro to enable this mode.
- Improved support for C++11 in the boost::base_from_member class template. The class implements perfect forwarding for the constructor arguments, if the compiler supports rvalue references, variadic templates and function template default arguments.
- Added boost/utility/explicit_operator_bool.hpp and boost/utility/empty_deleter.hpp headers, which were extracted from Boost.Log. The headers implement utilities for defining explicit conversion operators to bool and a deleter function object that does nothing, respectively.
Variant:
- Fixed compilation of constructor and assignment operator with const rvalues input parameters #8988.
- Fixed compilation of move assignment operator for situations when one of the variant template classes has nothrow copy constructor and throwing move constructor #8772.
- Fix compilation on exception-disabled environments #8717.
- Fix unreachable code warnings #8665.
- Removed duplicate code #7601.
Wave:
- See the Changelog for details.
xpressive:
- #8843 throw instead of assert at incomplete charset
- #8880 remove unused local typedef
- #8882 use RAII instead of try/catch in sequence_stack.hpp
- #8474 make xpressive play nice with clang's -Wimplicit-fallthrough diagnostic

Updated Tools

Quickbook:
- Quickbook 1.6 finalized, see the Quickbook documentation for details.

Compilers Tested

Boost's primary test compilers are:

Linux:
- Clang: 3.3, 3.2, 3.1, 3.0
- Clang, C++11, libc++: 3.4, 3.3
- GCC: 4.8.1, 4.7.3, 4.6.3, 4.5.3, 4.4.7
- GCC, C++11: 4.8.1
- GCC, C++98: 4.8.1
OS X:
- GCC: 4.2
- Apple Clang: 5.0
- Apple Clang, C++11: 5.0
Windows:
- GCC, mingw: 4.8.0, 4.7.2, 4.6.3, 4.5.4, 4.4.7
- Visual C++: 11.0, 10.0, 9.0

Boost's additional test compilers include:

OS X:
- Apple Clang: 5.0
- Apple Clang, C++11: 5.0
- Clang: trunk
- Clang, C++11: trunk
- GCC: 4.2.1
Linux:
- Clang: 3.3, 3.2, 3.1, 3.0, trunk
- Clang, C++11: 3.4
- Clang, C++11, libc++: 3.4, 3.3
- GCC: 4.9.0 (experimental), 4.8.1, 4.7.3, 4.6.4, 4.5.3, 4.4.7
- GCC, C++11: 4.8.1
- GCC, C++98: 4.8.1
- Intel: 13.0.1, 12.1.6
Windows:
- GCC, mingw: 4.8.0, 4.7.2, 4.6.3, 4.5.4, 4.4.7
- Visual C++: 11.0, 10.0, 9.0

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James, Vladimir Prus and Marshall Clow managed this release.

Version 1.54.0

Mon, 1 Jul 2013 10:10:02 -0700

Patches

These are patches from library authors which were found too late to be fixed in the 1.54.0 release. Be careful as they have not been through the normal testing process.

News

Supported CPUs

Boost no longer supports the 80386 target CPU, the minimum x86 32-bit target is i486. The 80386 target was not properly supported by Boost.SmartPtr and Boost.Atomic (as well as the libraries that used them internally) even before this release. Some Boost libraries may have higher requirements on the minimum target CPU (like Boost.Log for example), see the respective library documentation for details.

Also by default, when building Boost for x86 32-bit targets it will compile for i686 (Pentium Pro) and later CPUs. This can be changed by specifying the instruction-set property in b2 or bjam command line, for example:

b2 variant=release architecture=x86 instruction-set=i486 stage

Possible values for the instruction-set are:

Target for the host CPU: native
Generic x86 CPUs: i486, i586, i686
Intel CPUs: pentium, pentium-mmx, pentiumpro, pentium2, pentium3, pentium3m, pentium-m, pentium4, pentium4m, prescott, nocona, core2, corei7, corei7-avx, core-avx-i, conroe, conroe-xe, conroe-l, allendale, merom, merom-xe, kentsfield, kentsfield-xe, penryn, wolfdale, yorksfield, nehalem, sandy-bridge, ivy-bridge, haswell, atom
AMD CPUs: k6, k6-2, k6-3, athlon, athlon-tbird, athlon-4, athlon-xp, athlon-mp, k8, opteron, athlon64, athlon-fx, k8-sse3, opteron-sse3, athlon64-sse3, amdfam10, barcelona, bdver1, bdver2, bdver3, btver1, btver2
VIA CPUs: c3, c3-2
IDT CPUs: winchip-c6, winchip2

Note that not all these values may be supported by a particular compiler.

Signals deprecated

Boost.Signals is no longer being actively maintained, so it has been deprecated. Do not use Boost.Signals for new development (use Boost.Signals2 instead). If you have existing Boost.Signals-based code, it will continue to work, but consider moving to Boost.Signals2. There is a porting guide in the Signals2 documentation.

New Libraries

Log: Logging library, from Andrey Semashev.
TTI: Type Traits Introspection library, from Edward Diener.
Type Erasure: Runtime polymorphism based on concepts.

Updated Libraries

Accumulators:
- Fixes comment typos (#7917)
- Silence unused variable warnings (#6926)
Algorithm:
- The return types for copy_while and copy_until have been changed. This is an interface change. If you were using the return values from these functions, then you will have to modify your code. Instead of just returning the modified OutputIterator, these functions now return a std::pair<InputIterator, OutputIterator>. If this change affects your code, the simplest change is to add a .second to the end of the call, which will get you the same behavior that you had before.
- Added C++14 versions of 'is_permutation', 'equal' and 'mismatch'.
Any:
- Added C++11 features support #6999:
  - Move assignment and move constructors.
  - Added noexcept modifiers.
Asio:
- Added new traits classes, handler_type and async_result, that allow the customisation of the return type of an initiating function.
- Added the asio::spawn() function, a high-level wrapper for running stackful coroutines, based on the Boost.Coroutine library. The spawn() function enables programs to implement asynchronous logic in a synchronous manner. For example: size_t n = my_socket.async_read_some(my_buffer, yield);.
- Added the asio::use_future special value, which provides first-class support for returning a C++11 std::future from an asynchronous operation's initiating function. For example: future<size_t> n = my_socket.async_read_some(my_buffer, asio::use_future);.
- Promoted the stackless coroutine class and macros to be part of Asio's documented interface, rather than part of the HTTP server 4 example.
- Added a new handler hook called asio_handler_is_continuation. Asynchronous operations may represent a continuation of the asynchronous control flow associated with the current executing handler. The asio_handler_is_continuation hook can be customised to return true if this is the case, and Asio's implementation can use this knowledge to optimise scheduling of the new handler. To cover common cases, Asio customises the hook for strands, spawn() and composed asynchronous operations.
- Added four new generic protocol classes, generic::datagram_protocol, generic::raw_protocol, generic::seq_packet_protocol and generic::stream_protocol, which implement the Protocol type requirements, but allow the user to specify the address family (e.g. AF_INET) and protocol type (e.g. IPPROTO_TCP) at runtime.
- Added C++11 move constructors that allow the conversion of a socket (or acceptor) into a more generic type. For example, an ip::tcp::socket can be converted into a generic::stream_protocol::socket via move construction.
- Extended the basic_socket_acceptor<> class's accept() and async_accept() functions to allow a new connection to be accepted directly into a socket of a more generic type. For example, an ip::tcp::acceptor can be used to accept into a generic::stream_protocol::socket object.
- Moved existing examples into a C++03-specific directory, and added a new directory for C++11-specific examples. A limited subset of the C++03 examples have been converted to their C++11 equivalents.
- Various SSL enhancements. Thanks go to Nick Jones, on whose work these changes are based.
  - Added support for SSL handshakes with re-use of data already read from the wire. New overloads of the ssl::stream<> class's handshake() and async_handshake() functions have been added. These accept a ConstBufferSequence to be used as initial input to the ssl engine for the handshake procedure.
  - Added support for creation of TLSv1.1 and TLSv1.2 ssl::context objects.
  - Added a set_verify_depth() function to the ssl::context and ssl::stream<> classes.
  - Added the ability to load SSL certificate and key data from memory buffers. New functions, add_certificate_authority(), use_certificate(), use_certificate_chain(), use_private_key(), use_rsa_private_key() and use_tmp_dh(), have been added to the ssl::context class.
  - Changed ssl::context to automatically disable SSL compression by default. To enable, use the new ssl::context::clear_options() function, as in my_context.clear_options(ssl::context::no_compression).
- Fixed a potential deadlock in signal_set implementation.
- Fixed an error in acceptor example in documentation #8421.
- Fixed copy-paste errors in waitable timer documentation #8602.
- Added assertions to satisfy some code analysis tools #7739.
- Fixed a malformed #warning directive #7939.
- Fixed a potential data race in the Linux epoll implementation.
- Fixed a Windows-specific bug, where certain operations might generate an error_code with an invalid (i.e. NULL) error_category #8613.
- Fixed basic_waitable_timer's underlying implementation so that it can handle any time_point value without overflowing the intermediate duration objects.
- Fixed a problem with lost thread wakeups that can occur when making concurrent calls to run() and poll() on the same io_service object #8354.
- Fixed implementation of asynchronous connect operation so that it can cope with spurious readiness notifications from the reactor #7961.
Chrono:
- Fixed Bugs:
  - #8079 Chrono memory leak
  - #8318 BOOST_FORCEINLINE constructors of time_point and duration
  - #8367 chrono does not compile with clang from XCode 4.5.2 with -std=c++11 -stdlib=libc++ and -arch armv7
  - #8370 typo in chrono reference
  - #8435 Can't compile Chrono on HP-UX due to no CLOCK_REALTIME macro.
Circular Buffer:
- Fixed warnings (#8032).
Container:
- Added experimental static_vector class, based on Andrew Hundt's and Adam Wulkiewicz's high-performance varray class.
- Speed improvements in vector constructors/copy/move/swap, dispatching to memcpy when possible.
- Support for BOOST_NO_EXCEPTIONS #7227.
- Fixed bugs #7921, #7969, #8118, #8294, #8553.
Context:
- Support for SPARC architecture added.
Coroutine:
- Support for segmented stacks (stack grows on demand) added.
- #7805 Typo
- #7972 GCC warnings
- #7988 C++11 range-for
- #8023 Using iterator traits
- #8024 Create const_iterator
- #8101 Postfix operator++ for iterator
- #8526 memory leak
- #8544 calling managed DLL
Geometry:
- Additional functionality
  - added Spatial Index, developed for Boost.Geometry by Adam Wulkiewicz. The spatial index was originally started by Federico J. Fernandez during the Google Summer of Code 2008 program, mentored by Hartmut Kaiser.
  - added SVG-output, this was already in extensions for several years
- Documentation
  - small fixes of missing words
- Bugfixes
  - collinear opposite segments did sometimes (in circles) have a robustness issue, fixed
  - fixed insertion of false intersection point (found by buffer)
  - applied patch of Vladimir Petrovic for debugging traversals
- Solved tickets
  - 7462 degenerate union result for float, fixed
  - 7465 wrong construtors access type in scale_transformer class, fixed
  - 7802 cart_intersect.hpp unused parameter warnings, fixed
  - 8254 faulty intersection, fixed
  - 8393 polygon model doesn't adhere to stated Polygon concept rules, doc updated.
  - 8403 silenced compiler warning C4127: conditional expression is constant
  - 8405 silenced compiler warning C4189: '...' : local variable is initialized but not referenced
- Internal changes
  - Made several algorithms variant-aware (append, area, clear, convert, equals, length, num_points)
Graph:
- Bugs fixed from Trac: #6780, #7016, #7155, #7845, #7863, #7877, #8166, #8192, #8398, #8411, #8427, #8428, #8434, #8490, #8681.
- Added updates to VF2 subgraph isomorphism from Jakob Lykke Andersen and Flavio De Lorenzi.
- Added maximum adjacency search from Fernando Vilas.
- Added timeout support from Brammert Ottens to resource-constrained shortest paths (r_c_shortest_paths) algorithm.
- Various fixes to documentation and examples and removal of outdated compiler workarounds.
Interprocess:
- Added support for platform-specific flags to mapped_region (ticket #8030)
- Fixed bugs #7484, #7598, #7682, #7923, #7924, #7928, #7936, #8521, #8595.
- ABI breaking: Changed bootstamp function in Windows to use EventLog service start time as system bootup time. Previously used LastBootupTime from WMI was unstable with time synchronization and hibernation and unusable in practice. If you really need to obtain pre Boost 1.54 behaviour define BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME from command line or detail/workaround.hpp.
Intrusive:
- Added BOOST_NO_EXCEPTIONS support (bug #7849).
Iostreams:
- tee now works correctly for std::streams (#8315).
- Documentation fixes (#8385, #8460).
- Avoid warning from Clang's -Wimplicit-fallthrough (#8482).
Lexical cast:
- Converting to character pointer now triggers compile time assert instead of runtime #8334.
- Lexical cast is now capable of converting boost::int128_type and boost::uint128_type #7909.
- Changed internal stream buffer handling, now works with libc++ #8267, #7704.
- Restored getting address of lexical_cast function that was broken in 1.53.0 #7421.
- Fixed warnings, internals and tests #2558, #7949, #8162, #8369, #8547.
Math:
- Major reorganization to incorporate other Boost.Math like Integer Utilities (Greatest Common Divisor and Least Common Multiple), quaternions and octonions. Making new chapter headings.
- Added many references to Boost.Multiprecision and cpp_dec_float_50 as an example of a User-defined Type (UDT).
- Added Clang to list of supported compilers.
- Fixed constants to use a thread-safe cache of computed values when used at arbitrary precision.
- Added finding zeros of Bessel functions cyl_bessel_j_zero, cyl_neumann_zero, airy_ai_zeros and airy_bi_zeros(by Christopher Kormanyos).
- More accuracy improvements to the Bessel J and Y functions from Rocco Romeo.
- Fixed nasty cyclic dependency bug that caused some headers to not compile #7999.
- Fixed bug in __tgamma that caused spurious overflow for arguments between 142.5 and 143.
- Fixed bug in raise_rounding_error that caused it to return an incorrect result when throwing an exception is turned off #7905.
- Added minimal __float128 support.
- Fixed bug in edge-cases of poisson quantile #8308.
- Adjusted heuristics used in Halley iteration to cope with inverting the incomplete beta in tricky regions where the derivative is flatlining. Example is computing the quantile of the Fisher F distribution for probabilities smaller than machine epsilon. See ticket #8314.
Meta State Machine:
- Bugfix: Exit points broken for the favor_compile_time policy.
- Bugfix: copy breaks exit points of subsubmachines.
- Bugfix: #8046
Move:
- Fixed bugs #7969), #8231).
Multiprecision:
- Breaking change renamed rational_adapter to rational_adaptor.
- Add support for MPFI.
- Add logged_adaptor.
- Add support for 128-bit floats via GCC's __float128 or Intel's _Quad data types.
- Add support for user-defined literals in cpp_int, improve constexpr support.
- Fixed bug in integer division of cpp_int that results in incorrect sign of cpp_int when both arguments are small enough to fit in a double_limb_type. See 8126.
- Fixed bug in subtraction of a single limb in cpp_int that results in incorrect value when the result should have a 0 in the last limb: 8133.
- Fixed bug in cpp_int where division of 0 by something doesn't get zero in the result: 8160.
- Fixed bug in some transcendental functions that caused incorrect return values when variables are reused, for example with a = pow(a, b). See 8326.
Polygon:
- Updates and fixes to the Voronoi documentation.
- Bugs fixed from Trac: #8026, #8197, #8257.
PropertyMap:
- Added compose_property_map from Guillaume Pinot.
Range:
- Bug fixes:
  - #6944 Some Range concepts use the incorrect Iterator concept
  - #7407 istream_range does not compile with wcin
  - #7408 istream_range should not pull istream
  - #7731 irange doesn't end iteration properly when step_size is 3 or more
  - #7827 [range] cant compile r | indexed to range algorithm
  - #8338 Iterator range does not work with pointer to array as iterator
  - #8453 Incorrect configuration macro BOOST_NO_PARTIAL_TEMPLATE_SPECIALIZATION
Signals:
- No longer actively maintained, so it is deprecated. Use Signals2 for new development.
Thread:
- New Features:
  - #7285 C++11 compliance: Allow to pass movable arguments for call_once.
  - #7445 Async: Add future<>.then
  - #7449 Synchro: Add a synchronized value class
- Fixed Bugs:
  - #4878 MinGW 4.5.0 undefined reference to bool interruptible_wait(detail::win32::handle handle_to_wait_for,detail::t imeout target_time).
  - #4882 Win32 shared_mutex does not handle timeouts correctly.
  - #5752 boost::call_once() is unreliable on some platforms
  - #6652 Boost.Thread shared_mutex.hpp:50:99: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  - #6843 [Intel C++] Compile Errors with '#include <atomic>'
  - #6966 future boost::future_category inconsistent dll linkage
  - #7720 exception lock_error while intensive locking/unlocking of mutex
  - #7755 Thread: deadlock with shared_mutex on Windows
  - #7980 Build error: msvc-11.0 and BOOST_THREAD_DONT_USE_DATETIME
  - #7982 pthread_delay_np() parm compile error on AIX
  - #8027 thread library fails to compile with Visual Studio 2003
  - #8070 prefer GetTickCount64 over GetTickCount
  - #8136 boost::this_thread::sleep_for() sleeps longer than it should in Windows
  - #8212 Boost thread compilation error on Solaris 10
  - #8237 fix documentation for 'thread_group'
  - #8239 barrier::wait() not marked as interruption_point
  - #8323 boost::thread::try_join_for/try_join_until may block indefinitely due to a combination of problems in Boost.Thread and Boost.Chrono
  - #8337 The internal representation of "std::string(this->code()->message())" escapes, but is destroyed when it exits scope.
  - #8371 C++11 once_flag enabled when constexpr is not available
  - #8443 Header file inclusion order may cause crashes
  - #8451 Missing documented function 'boost::scoped_thread::joinable'
  - #8530 [Coverity] Unused variable thread_handle, uninitialized variable cond_mutex in thread/pthread/thread_data.hpp
  - #8596 With C++0x enabled, boost::packaged_task stores a reference to function objects, instead of a copy.
Type Traits:
- New type traits implemented #8189:
  - is_nothrow_move_constructible
  - is_nothrow_move_assignable
  - has_trivial_move_assign
  - has_trivial_move_constructor
uBLAS:
- #6511 Division by scalar should use enable_if<>
- #7297 Make the free functions 'num_columns' and 'num_rows' support the uBLAS traits system and better work with expression types
- #6010 fixed linkage problems in assignment.hpp
- updated doc
Unordered:
- Some very basic noexcept support.
Utility:
- Fix basic_string_ref::find (#8067).
- Fix string_ref's logical operators.
- Update noncopyable for C++11 (#6578).
- Fix noncopyable compiler warning when used in DLL interface (#6935).
- Fix using boost::addressof with boost::function on SolarisStudio compiler (#7079).
- Disable annoying MSVC warning about operator comma (#7663)
Variant:
- Now uses new type traits from Boost.TypeTrait to detect noexcept constructors and assignment operators #8296. This shall increase performance of boost::variant for many types in C++11.
- Multivisitation implemented #8459.
- Documentation updated to reflect C++11 features support.
Wave:
- See the Changelog for details.
xpressive:
- Remove unused variables, fixes #8039
- Avoid name clash with macro None in glx.h, fixes #8204
- Silence a gcc warning, fixes #8138

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 4.4.7, 4.5.3, 4.6.2, 4.6.3, 4.7.3
- GCC, C++98 mode: 4.7.3
- GCC, C++11 mode: 4.7.2, 4.7.3, 4.8.0
- Clang: 3.0, 3.1, 3.2
- Clang, C++11 mode: 3.2
OS X:
- GCC: 4.2
- Apple Clang: 4.2.1
- Apple Clang, C++11 mode: 4.2.1
Windows:
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.3, 4.7.2, 4.8.0
- Visual C++: 8.0, 9.0, 10.0, 11.0
FreeBSD:
- GCC: 4.2.1

Boost's additional test compilers include:

Linux:
- Clang: 3.0, 3.1, 3.2, from Subversion
- Clang, with libc++: 3.2
- GCC: 4.4.7, 4.5.3, 4.6.2, 4.6.3, 4.7.2, 4.7.3
- GCC, C++98 mode: 4.7.3
- GCC, C++11 mode: 4.7.3, 4.8.0
OS X:
- Apple Clang: 4.2.1
- Apple Clang, C++11 mode: 4.2.1
- Clang: from Subversion
- Clang, C++11 mode: from Subversion
- GCC: 4.2
Windows:
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.3, 4.7.2, 4.8.0
- Visual C++: 9.0, 10.0, 11.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
AIX:
- IBM XL C/C++ Enterprise Edition: 12.1.0.1
FreeBSD:
- GCC: 4.2.1

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James, Vladimir Prus and Marshall Clow managed this release.

Version 1.53.0

Mon, 4 Feb 2013 10:29:19 -0800

New Libraries

Atomic: C++11-style atomic<>, from Helge Bahmann, maintained by Tim Blechmann.
Coroutine: Coroutine library, from Oliver Kowalke.
Lockfree: Lockfree data structures, from Tim Blechmann.
Multiprecision: Extended precision arithmetic types for floating point, integer and rational arithmetic from John Maddock and Christopher Kormanyos.
Odeint: Solving ordinary differential equations, from Karsten Ahnert and Mario Mulansky.

News

This release contains a fix for ticket #7743, in Boost.Locale. For more details, see the security notice.

Updated Libraries

Algorithm:
- Fixed non-ASCII char in comment (#7781).
- Updated the Knuth-Morris-Pratt docs (#7656).
Array:
- Added support for boost::get and std::get (#7652)
Asio:
- Fixed some 64-to-32-bit conversion warnings (#7459).
- Fixed some small errors in documentation and comments (#7761).
- Fixed an error in the example embedded in basic_socket::get_option's documentation (#7562).
- Changed to use long rather than int for SSL_CTX options, to match OpenSSL (#7209).
- Changed to use _snwprintf to address a compile error due to the changed swprintf signature in recent versions of MinGW (#7373).
- Fixed a deadlock that can occur on Windows when shutting down a pool of io_service threads due to running out of work (#7552).
- Enabled the noexcept qualifier for error categories (#7797).
- Changed UNIX domain socket example to treat errors from accept as non-fatal (#7488).
- Added a small block recycling optimisation to improve default memory allocation behaviour.
Bimap:
- Refactor map_view_iterator to improve error messages.
- Fixed replace_(left/right/key/data) bug when using relations with info.
- Fixed vector_of and list_of views assign(size_type,value_type) bug.
- Fixed vector_of views operator[](size_type) and at(size_type) functions return value.
Chrono:
- Deprecated:
  - The chrono i/o version included in Boost.Chrono 1.2.x has been completly refactored in version 2.0.0
  - chrono I/O: The manipulators __duration_short, __duration_long are depreceated. You should use the parameterized form __duration_fmt or the renamed manipulators __duration_symbol and __duration_prefix instead.
  - chrono I/O: The __duration_punct<> facet is depreceated. You should use the __get_duration_style free function to get the informations and use the __duration_units facet for localization purposes.
  - When BOOST_CHRONO_VERSION==2 the preceding deprecated functions are not available.
- Fixes:
  - #7546 time_point<system_clock> output version 2 fails to compile
  - #7547 time_point<system_clock> input version 2 fails to compile
  - #7868 chrono_io parses time incorrectly (1.53 and 1.52)
Container:
- Fixed bug #7650.
- Improved vector's insertion performance.
- Changed again experimental multiallocation interface for better performance (still experimental).
- Added no exception support for those willing to disable exceptions in their compilers.
- Fixed GCC -Wshadow warnings.
- Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
Context:
- Support for iOS on ARM and MacOS X on x86 (32bit) added.
- Support for SEH Overwrite Protection on Win32.
Geometry:
- Bugfixes
  - avoid generating output polygons with interior rings below minimum size (e.g. one or two points)
  - geometry::disjoint for degenerate segments (patched by Karsten Ahnert)
  - problem in geometry::difference for missing handling tangency, reported by H2
  - fixed geometry::for_each for use with Lambda's
  - fixed geometry::comparable_distance point-linestring (and -range, -polygon)
- Additional functionality
  - combinations for geometry::disjoint: point/ring, point/polygon, point/multi_polygon
  - combinations for geometry::intersects: point/ring, point/polygon, point/multi_polygon
- Internal changes
  - updates in specializations/not_implemented for various algorithms (as in an earlier version, these changes are still going on; they take care for simplified structs, better error reporting, and automatized documentation)
  - fixes in unit tests
GIL:
- Fixed self-assignment warnings (#4919).
Graph:
- Fixed the following bugs from Trac: #3468, #4386, #5269, #7428, #7457, #7467, #7600, #7648, #7684, #7728, #7741, #7766, #7771, #7773, #7780, #7787, #7801 plus other bugs not in Trac.
- Added support for reading from GraphML files containing multiple graphs.
- Added versions of A* search specifically for trees, removing the need for a color map when it is acceptable to visit the same vertex multiple times.
- Added VF2 subgraph isomorphism algorithm (contributed by Flavio De Lorenzi).
Hash:
- Add support for boost::int128_type and boost::uint128_type where available.
- On platforms that are known to have standard floating point functions, don't use the automatic detection (#7221, #7470).
Interprocess:
- Fixed GCC -Wshadow warnings.
- Experimental multiple allocation interface improved and changed again. Still unstable.
- Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
- ABI breaking: changed node pool allocators internals for improved efficiency.
- Fixed bug #7795.
Intrusive:
- Fixed bugs #7174, #7529, #7815.
- Fixed GCC -Wshadow warnings.
- Added missing explicit keyword in several intrusive container constructors.
- Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
- Small documentation fixes.
Lexical cast:
- New character type detection algorithm for user defined types #6786.
- Documentation updates (#7582, #7831).
- Fixed bugs with std::array #7799.
- Fixed compilation with -ftrapv and numeric to numeric conversions #7814.
Locale:
- Security related bug fix, some invalid UTF-8 sequences where accepted as valid #7743
- Invalid Windows codepage names used #7386
- Fixed missing documentation, caused by a error in Doxygen formatting #7734
- Fixed missing std:: in some places #7701
- Spelling, grammar, typos fixes #7368, #7762
Math:
- Fixed issues #7325, #7415, #7416, #7183, #7649, #7694, #4445 and #7492.
- Fixed mistake in calculating pooled standard deviation in two-sample students t example #7402.
- Improve complex acos/asin/atan, see #7290, #7291.
- Improve accuracy in some corner cases of cyl_bessel_j and gamma_p/gamma_q thanks to suggestions from Rocco Romeo.
- Improve accuracy in Bessel J and Y with integer orders thanks to suggestions from Rocco Romeo.
MinMax:
- Fixed a misuse of the comma operator (#7752).
- Updated the docs to fix broken link (#7751).
Move:
- Better header segregation (bug #6524).
- Small documentation fixes
- Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
- Fixed #7830, #7832.
Polygon:
- Fixes:
  - #6366 Bug in boost::polygon::contains for polygon_90 type.
  - #7678 multiple definitions of bool boost::polygon::belongs(...) by multiple #include.
- Internal changes:
  - refactored point/segment/interval data/concept/traits.
  - added unit tests for point and interval data/concept/traits.
  - simplified transform.hpp to operate only in 2D.
  - removed point_3d data/concept/traits.
Random:
- Now compiles with exceptions disabled (#5399).
Range:
- Bug fixes:
  - #5603 the "range/any_range.hpp" header is not self-sufficient
  - #6103 boost::range_detail vs. boost::range::range_detail compiler error
- Documentation fixes:
  - #5160
  - #5314
  - #5440
  - #5775
  - #6212
  - #7585
  - #7843
  - #7916
  - #7926
Ratio:
- Fixes:
  - #7616 br_mul::nan - warning C4293: '<<' : shift count negative or too big, undefined behavior`.
Regex: Fixed Issues: #7744, #7644.
Smart Pointers:
- New Features:
  - Glen Fernandes provided implementations of make_shared and allocate_shared for arrays. They achieve a single allocation for an array that can be initialized with constructor arguments or initializer lists as well as overloads for default initialization and no value initialization. See the 'make_shared and allocate_shared for arrays' page for more information.
  - shared_ptr can now be used to hold a pointer to a dynamically allocated array. This is accomplished by using an array type (T[] or T[N]) as the template parameter.
  - Smart pointers now use explicit operator bool on C++11 compilers. This can break code that passes a smart pointer to a function taking a bool, or that returns a smart pointer from a function with a bool return type. Please use p != 0 or !!p in such cases.
StringAlgo:
- Fixed a bug where it wouldn't find overlapping patterns (#7784).
- Disambiguated some calls to insert (#7346).
Thread:
- Deprecated features:
  - Deprecated features since boost 1.53 will be available only until boost 1.58.
  - C++11 compliance: packaged_task<R> is deprecated, use instead packaged_task<R()>.
  - #7537 deprecate Mutex::scoped_lock and scoped_try_lock and boost::condition
- New Features:
  - #6270 C++11 compliance: Add thread constructor from movable callable and movable arguments
  - #7279 C++11 compliance: Add noexcept in system related functions
  - #7280 C++11 compliance: Add promise::...at_thread_exit functions
  - #7281 C++11 compliance: Add ArgTypes to packaged_task template.
  - #7282 C++11 compliance: Add packaged_task::make_ready_at_thread_exit function
  - #7412 C++11 compliance: Add async from movable callable and movable arguments
  - #7413 C++11 compliance: Add async when the launch policy is deferred.
  - #7414 C++11 compliance: future::get post-condition should be valid()==false.
  - #7422 Provide a condition variable with zero-overhead performance penality.
  - #7444 Async: Add make_future/make_shared_future.
  - #7540 Threads: Add a helper class that join a thread on destruction.
  - #7541 Threads: Add a thread wrapper class that joins on destruction.
  - #7575 C++11 compliance: A future created by async should "join" in the destructor.
  - #7587 Synchro: Add strict_lock and nested_strict_lock.
  - #7588 Synchro: Split the locks.hpp in several files to limit dependencies.
  - #7590 Synchro: Add lockable concept checkers based on Boost.ConceptCheck.
  - #7591 Add lockable traits that can be used with enable_if.
  - #7592 Synchro: Add a null_mutex that is a no-op and that is a model of UpgardeLockable.
  - #7593 Synchro: Add a externally_locked class.
  - #7594 Threads: Allow to disable thread interruptions.
- Fixed Bugs:
  - #7464 BOOST_TEST(n_alive == 1); fails due to race condition in a regression test tool.
  - #7657 Serious performance and memory consumption hit if condition_variable methods condition notify_one or notify_all is used repeatedly.
  - #7665 this_thread::sleep_for no longer uses steady_clock in thread.
  - #7668 thread_group::join_all() should check whether its threads are joinable.
  - #7669 thread_group::join_all() should catch resource_deadlock_would_occur.
  - #7671 Error including boost/thread.hpp header on iOS.
  - #7672 lockable_traits.hpp syntax error: "defined" token misspelled.
  - #7798 boost::future set_wait_callback thread safety issues.
  - #7808 Incorrect description of effects for this_thread::sleep_for and this_thread::sleep_until.
  - #7812 Returns: cv_status::no_timeout if the call is returning because the time period specified by rel_time has elapsed, cv_status::timeout otherwise.
  - #7874 compile warning: thread.hpp:342: warning: type attributes are honored only at type definition.
  - #7875 BOOST_THREAD_THROW_IF_PRECONDITION_NOT_SATISFIED should not be enabled by default.
  - #7882 wrong exception text from condition_variable::wait(unique_lock<mutex>&).
  - #7890 thread::do_try_join_until() is missing a return type.
Unordered:
- Remove support for the old pre-standard variadic pair constructors, and equality implementation. Both have been deprecated since Boost 1.48.
- More internal implementation changes, including a much simpler implementation of erase, and removed more deprecated config macros.
Utility:
- Added string_ref, a non-owning reference to a contiguous sequence of characters.
Variant:
- Added rvalue constructors and rvalue assignment operators (for C++11 compatible compilers only). Library now can be used with move-only types (#7620, #7718).
Wave:
- See the Changelog for details.
xpressive:
- Accomodate recent smart pointer changes (#7809).

Updated Tools

Boost Build System:
- Qt5 toolset
- improved rcc support (#7576)

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 4.1.2, 4.2.4, 4.4.4, 4.5.3, 4.6.3, 4.7.2
- GCC, C++11 mode: 4.4.4, 4.5.3, 4.6.3, 4.7.2
- Intel: 11.1, 12.1
- LLVM Clang: 2.8
- LLVM Clang, with libc++: 3.2
OS X:
- GCC: 4.4.7
- GCC, C++11 mode: 4.4.4
- Intel: 11.1, 12.0
Windows:
- Visual C++: 9.0, 10.0
FreeBSD:
- GCC: 4.2.1, 32 and 64 bit

Boost's additional test compilers include:

Linux:
- Cray: 4.6.1
- Clang: from subversion
- LLVM Clang, with libc++: 3.2
- GCC: 4.2.4, 4.4.4, 4.5.3, 4.6.3, 4.7.1
- GCC, C++11 mode: 4.4.4, 4.5.3, 4.6.3, 4.7.1, 4.7.2
- pgCC: 11.9
- Intel: 10.1, 11.1, 12.1
- Intel, C++11 mode: 13.0.1
- Visual Age:
OS X:
- Clang: from subversion
- Clang, C++11 mode: from subversion
- Intel: 11.1, 12.0
- GCC: 4.4.7
- GCC, C++11 mode: 4.4.4
Windows:
- Visual C++: 10.0, 11.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
AIX:
- IBM XL C/C++ Enterprise Edition: V12.1.0.1

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James, Vladimir Prus and Marshall Clow managed this release.

Version 1.52.0

Mon, 5 Nov 2012 08:05:58 -0800

Updated Libraries

Accumulators:
- Fix long-standing dependency tracking bug, #7409
Config:
- Define BOOST_NO_SFINAE_EXPR for gcc-4.4, since the support was found to be too buggy.
Chrono:
- New Features:
  - #5980 Enhance chrono I/O with H. Hinnant proposal proposal which has the advantage to provide I/O for system clocks using the Gregorian Calendar.
  - #5981 Add i/o state savers for duration and time_point formatting state.
  - #7059 Add low level i/o facilities.
- Deprecated features:
  - The chrono i/o version included in Boost.Chrono 1.2.x has been completly refactored in version 2.0.0
  - chrono I/O: The manipulators __duration_short, __duration_long are depreceated. You should use the parameterized form __duration_fmt or the renamed manipulators __duration_symbol and __duration_prefix instead.
  - chrono I/O: The __duration_punct<> facet is deprecated. You should use the __get_duration_style free function to get the informations and use the __duration_units facet for localization purposes.
  - When BOOST_CHRONO_VERSION==2 the preceding deprecated functions are not available.
- Fixes:
  - #7381 C++11 compliance: unresolved symbol when assigning a constexpr duration to a non-const local variable.
  - #7479 Compile fails with compilers supporting constexpr fails if the standard library doesn't provides the constexpr interface
- Would not fix:
  - #6871 chrono_io.hpp: operator<<(ostream& os, ...) modifies the state of os. The neww io interface provided in version 2 solves this issue. You should move to the new version.
Container:
- Improved stable_vector's template code bloat and type safety.
- Changed typedefs and reordered functions of sequence containers to improve doxygen documentation.
- Fixed bugs #6615, #7139, #7215, #7232, #7269, #7439.
- Implemented LWG Issue #149 (range insertion now returns an iterator) & cleaned up insertion code in most containers
- Corrected aliasing errors.
DateTime:
- Document BOOST_DATE_TIME_NO_LIB (#6077).
- Fix nth_as_str (#7022).
- Fix some warnings (#7234).
Foreach:
- Fix alignment warning on gcc.
Function:
- Move constructors and move assignment operators added (only for compilers with C++11 rvalue references support) #7330.
Graph:
- Fixed bugs #6950, #7226,#7308, #7327, #7338, #7341, #7378, #7380, #7398, and #7428, plus others not in Trac.
Hash:
- Restore enum support, which was accidentally removed in the last version (#7437).
- New floating point hasher - will hash the binary representation on more platforms, which should be faster.
Interprocess:
- Added shrink_by and advise functions in mapped_region.
- ABI breaking: Reimplemented message_queue with a circular buffer index (the old behavior used an ordered array, leading to excessive copies). This should greatly increase performance but breaks ABI. Old behaviour/ABI can be used undefining macro BOOST_INTERPROCESS_MSG_QUEUE_CIRCULAR_INDEX in boost/interprocess/detail/workaround.hpp
- Improved message_queue insertion time avoiding priority search for common cases (both array and circular buffer configurations).
- Implemented interproces_sharable_mutex and interproces_condition_any.
- Improved offset_ptr performance.
- Added integer overflow checks.
Iterator:
- Fixed:
  - #5825 constructing function_input_iterator without consuming an item
  - #7194 Error in documentation of make_function_input_iterator
- Breaking changes:
  - Due to the fix for #5825, a function_input_iterator will no longer make unnecessary invokations to the wrapped nullary function. For example, constructing an end iterator will now not trigger an invokation; and dereferencing-and-incrementing an iterator N times will trigger N invokations, not N+1 as before. User code that relied on the old behavior will need to be adjusted.
Lexical cast:
- Restored compilation on MSVC-2003 (was broken in 1.51.0) #7255.
- Added lexical_cast(const CharType* chars, std::size_t count) function overload. #6663.
- Fixed bug #7228.
Math:
- Added Airy functions and Jacobi Elliptic functions.
- In several distributions (particulary the Students T) corrected moments for small degrees of freedom #7177 (reported by Thomas Mang).
- Corrected failure to detect bad parameters in many distributions #6934 (reported by Florian Schoppmann) by adding a function check_out_of_range to test many possible bad parameters. This test revealed several distributions where the checks for bad parameters were ineffective, and these have been rectified.
- Fixed issue in Hankel functions that causes incorrect values to be returned for x < 0 and ν odd, see #7135.
- In non-central T permitted infinite degrees of freedom #7259 implemented using the normal distribution (requested by Thomas Mang). Also much enhanced accuracy for large degrees of freedom and/or large non-centrality parameters by switching to use the Students t distribution (or Normal distribution for infinite degrees of freedom) centered at delta, when delta / (4 * v) < epsilon for the floating-point type in use. See #7259. It was also found that the incomplete beta was suffering from serious cancellation errors when degrees of freedom was very large. (That has now been fixed in our code, but any code based on Didonato and Morris's original papers (probably every implementation out there actually) will have the same issue).
- Fixed minor issues #6517, #6362, #7053, #2693, #6937, #7099.
Phoenix:
- Make Phoenix work with decltype-based boost::result_of.
Polygon:
- Included Voronoi diagram extensions.
- Introduced new Segment concept.
- Fixed compilation issues.
Proto:
- The data parameter to primitive transforms can now optionally have slots indexed by key.
- Primitive transforms can now operatate on temporary expressions that are non-const qualified.
- Add callable function object types for the free functions in <iterator> and also for some Boost.Range functions.
- Boost.MPL algorithms work on Proto expression nodes.
- proto::pass_through primitive transform now accepts an optional Domain template parameter for specifying the target domain of the resulting expression.
Ratio:
- Features:
  - Replace the short_name and long_name functions by symbol and prefix functions respectively.
- Deprecated:
  - The ratio_string<>::short_name and ratio_string<>::long_name are deprecated. Use ratio_string<>::symbol and ratio_string<>::prefix respectively. These functions be removed in 1.55.
- Fixes:
  - #7478 Compiles fails with compilers supporting char16_t and char32_t fails if the library doesn't provides std::u16string and std::u32string.
Result_of:
- Switch boost::result_of to use decltype on compilers for which support is deemed "good enough". That means if the compiler implements n3276. (For now, that only includes very recent versions of clang.)
- boost::result_of is now "sfinae-friendly" when it uses decltype. See n3436.
Thread:
- Deprecated Features: Deprecated features since boost 1.50 available only until boost 1.55. These deprecated features will be provided by default up to boost 1.52. If you don't want to include the deprecated features you could define BOOST_THREAD_DONT_PROVIDE_DEPRECATED_FEATURES_SINCE_V3_0_0. Since 1.53 these features will not be included any more by default. Since this version, if you want to include the deprecated features yet you could define BOOST_THREAD_PROVIDE_DEPRECATED_FEATURES_SINCE_V3_0_0. These deprecated features will be only available until boost 1.55, that is you have yet 1 year to move to the new features.
  - Time related functions don't using the Boost.Chrono library, use the chrono overloads instead.
- Breaking changes when BOOST_THREAD_VERSION==3 (Default value since Boost 1.53): There are some new features which share the same interface but with different behavior. These breaking features are provided by default when BOOST_THREAD_VERSION is 3, but the user can however choose the version 2 behavior by defining the corresponding macro. As for the deprecated features, these broken features will be only available until boost 1.55.
  - #6229 C++11 compliance & Breaking change: Rename the unique_future to future following the c++11.
  - #6266 C++11 compliance & Breaking change: thread destructor should call terminate if joinable.
  - #6269 C++11 compliance & Breaking change: thread move assignment should call terminate if joinable.
- New Features:
  - #4710 C++11 compliance: Missing async().
  - #7283 C++11 compliance: Add notify_all_at_thread_exit.
  - #7345 C++11 compliance: Add noexcept to recursive mutex try_lock.
- Fixed Bugs:
  - #2361 thread_specific_ptr: document nature of the key, complexity and rationale.
  - #2797 Two problems with thread_specific_ptr.
  - #5274 failed to compile future.hpp with stlport 5.1.5 under msvc8.1, because of undefined class.
  - #5431 compile error in Windows CE 6.0(interlocked).
  - #5752 boost::call_once() is unreliable on some platforms.
  - #7045 Thread library does not automatically compile date_time.
  - #7173 wrong function name interrupt_point().
  - #7200 Unable to build boost.thread modularized.
  - #7220 gcc 4.6.2 warns about inline+dllimport functions.
  - #7238 this_thread::sleep_for() does not respond to interrupt().
  - #7245 Minor typos on documentation related to version 3.
  - #7272 win32/thread_primitives.hpp: (Unneccessary) Warning.
  - #7284 Clarify that there is no access priority between lock and shared_lock on shared mutex.
  - #7329 boost/thread/future.hpp does not compile on HPUX.
  - #7336 BOOST_THREAD_DONT_USE_SYSTEM doesn't work.
  - #7349 packaged_task holds reference to temporary.
  - #7350 allocator_destructor does not destroy object
uBLAS:
- improved performance of inplace_solve (issue #4024)
- fixed coordinate_matrix for use with gcc 4.7 (issue #7363)
Unordered:
- In assignment, reuse existing nodes where possible.
- Fix bugs when erasing ranges (#7471).
- Some work on the implementation.
Uuid:
- Fixes #6118, #6788, #7375.
- #7128 - fixed bug in sha1.hpp for messages longer than 536,870,912 bytes.
Wave:
- See the Changelog for details.
xpressive:
- Make sub_match work with Boost.Range. Fixes #7237.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 4.2.4, 4.3.4, 4.4.3, 4.5.3, 4.6.2, 4.7.2
- GCC, C++11 mode: 4.3.4, 4.4.3, 4.5.3, 4.6.2
- Intel: 11.1, 12.0, 12.1
- LLVM Clang: 2.8
OS X:
- GCC: 4.4.4
- GCC, C++11 mode: 4.4.4
- Intel: 11.1, 12.0
Windows:
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.3, 4.7.0
- Visual C++: 8.0, 9.0, 10.0
FreeBSD:
- GCC: 4.2.1, 32 and 64 bit

Boost's additional test compilers include:

Linux:
- Cray: 8.0
- Clang: from subversion
- LLVM Clang:
- GCC: 4.2.4, 4.3.4, 4.4.4, 4.5.3, 4.6.2, 4.6.3, 4.7.0, 4.7.1, 4.7.2
- GCC, C++11 mode: 4.3.4, 4.4.4, 4.5.3, 4.6.3, 4.7.1
- pgCC: 11.9
- Intel: 10.1, 11.1, 12.0, 12.1
- Visual Age: 10.1
OS X:
- Clang: from subversion
- Clang, C++11 mode: from subversion
- Intel: 11.1, 12.0
- GCC: 4.4.4
- GCC, C++11 mode: 4.4.4
Windows:
- Visual C++: 8.0, 9.0, 10.0, 11.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.3, 4.7.0
AIX:
- IBM XL C/C++ Enterprise Edition: V12.1.0.0
FreeBSD:
- GCC: 4.2.1, 64 bit
Solaris:
- Sun: 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James, Vladimir Prus and Marshall Clow managed this release.

Version 1.51.0

Mon, 20 Aug 2012 16:00:21 -0700

New Libraries

Context: Context switching library, from Oliver Kowalke.

Updated Libraries

Algorithm:
- Fixed is_sorted_until ; now matches the c++11 standard behavior on ranges with duplicate values.
- Added range support for the rest of the search algorithms.
- unhex now uses Boost.Exception to signal bad input.
Asio:
- Fixed an incompatibility between ip::tcp::iostream and C++11 (#7162).
- Decorated GCC attribute names with underscores to prevent interaction with user-defined macros (#6415).
- Added missing #include <cctype>, needed for some versions of MinGW.
- Changed to use gcc's atomic builtins on ARM CPUs, when available (#7140).
- Changed strand destruction to be a no-op, to allow strand objects to be destroyed after their associated io_service has been destroyed.
- Added support for some newer versions of glibc which provide the epoll_create1() function but always fail with ENOSYS (#7012).
- Changed the SSL implementation to throw an exception if SSL engine initialisation fails (#6303).
- Fixed another regression in buffered_write_stream (#6310).
- Implemented various minor performance improvements, primarily targeted at Linux x86 and x86-64 platforms.
Config:
- Deprecated a whole bunch of macros that were c++11 specific, but not named to show that they were c++11 specific. Made new macros with better names, and paired the old macros with the new ones. Updated the documentation to list the deprecated macros.
Chrono:
- #6918 Boost Chrono compilation failure on HP uX due to undefined pthread_getcpuclockid.
- #6241 boost::chrono compilation problems without std::wstring support.
- #6987 Documentation & C++11.
- #7041 time_point.hpp depends on Boost.System.
- #7042 Avoiding time_point and duration dependency on time.h and CLOCK_REALTIME.
- #7058 Make it work when BOOST_NO_EXCEPTIONS is defined.
- #7069 Misspellings in clock_string<thread_clock>.
- #7081 WinError.h capitalization in boost/detail/win/basic_types.hpp.
Geometry:
- points accessed through a pointer (e.g. in a linestring) should now be specialized without the pointer. In previous versions a type my_point used like linestring<my_point*> had to be specalized like: template<> struct tag<my_point*>. Now the library itself removes the pointer before calling the traits class, so now it should be like: template<> struct tag<my_point>
- intersection was sometimes wrong for integer points, fixed
- documentation, order of parameters in simplify was wrong, fixed
- 7030 spherical distance, fixed (by patch of Karsten Ahnert)
Graph:
- Refactored support for internal and bundled properties in Boost.Graph-provided graph types, and cleaned up named parameter functionality:
  - Enabled old-style (non-bundled) internal properties in compressed_sparse_row_graph.
  - Bundled properties should work correctly for all graph types and adaptors.
- Bugs fixed:
  - #6993: Typo Bundled Properties document
  - #7002: Problem with initialization of CSR bidirectional graph
  - #7023: Enclose internal type graphml_reader in anonymous namespace
  - Other bugs and warnings not in Trac
Hash:
- Support the standard smart pointers.
- hash_value now implemented using SFINAE to avoid implicit casts to built in types when calling it.
- Updated to use the new config macros.
Lexical cast:
- Better performance, less memory usage for boost::array<character_type, N> and std::array<character_type, N> conversions.
- Fixed bug with volatile input parameter #7157.
Math:
- Updated to use the new config macros.
MSM:
- Support for boost::any http://www.boost.org/doc/libs/1_51_0/libs/msm/doc/HTML/ch03s03.html#any-event or kleene http://www.boost.org/doc/libs/1_51_0/libs/msm/doc/HTML/ch03s04.html#kleene-event as acceptable events
- Bugfix: compiler error with fsm internal table and none (compound) event.
- Bugfix: euml::defer_ leading to stack overflow.
Proto:
- Proto transforms get pseudo-parameter pack expansion support for unpacking expressions. See the Release Notes for more information.
Ratio:
- #7075 Workaround for error: the type of partial specialization template parameter constant "n1" depends on another template parameter.
Regex:
- Updated to use the new config macros.
Thread:
- #4258 Linking with boost thread does not work on mingw/gcc 4.5.
- #4885 Access violation in set_tss_data at process exit due to invalid assumption about TlsAlloc.
- #6931 mutex waits forwever with Intel Compiler and /debug:parallel
- #7044 boost 1.50.0 header missing.
- #7052 Thread: BOOST_THREAD_PROVIDES_DEPRECATED_FEATURES_SINCE_V3_0_0 only masks thread::operator==, thread::operator!= forward declarations, not definitions.
- #7066 An attempt to fix current_thread_tls_key static initialization order.
- #7074 Multiply defined symbol boost::allocator_arg.
- #7078 Trivial 64-bit warning fix on Windows for thread attribute stack size
- #7089 BOOST_THREAD_WAIT_BUG limits functionality without solving anything
Unordered:
- Fix construction/destruction issue when using a C++11 compiler with a C++03 allocator (#7100).
- Remove a try..catch to support compiling without exceptions.
- Adjust SFINAE use to try to supprt g++ 3.4 (#7175).
- Updated to use the new config macros.
Wave:
- See the Changelog for details.
xpressive:
- Work around buggy wide ctype facet on cygwin and mingw.
- Work around absence of __isctype on some glibc implementations.
- op::as shouldn't assume string::iterator != char*.
- Fix assertion in cpp_regex_traits on libc++, thanks to John Fletcher.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 4.2.4, 4.3.4, 4.4.3, 4.5.3, 4.6.2, 4.7
- GCC, C++11 mode: 4.3.4, 4.4.3, 4.5.3, 4.6.2
- Intel: 11.1, 12.0, 12.1
- LLVM Clang 2.8
OS X:
- GCC: 4.4
- GCC, C++11 mode: 4.4
- Intel: 11.1, 12.0
Windows:
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.3
- Visual C++: 8.0, 9.0, 10.0
FreeBSD:
- GCC: 4.2.1, 32 and 64 bit

Boost's additional test compilers include:

Linux:
- Clang: from subversion
- LLVM Clang: 3.0
- GCC: 4.2.4, 4.3.4, 4.4.4, 4.4.7, 4.5.3, 4.6.2, 4.6.3, 4.7.0, 4.7.1
- GCC, C++11 mode: 4.3.4, 4.4.4, 4.5.3, 4.6.3
- pgCC: 11.9
- Intel: 10.1, 11.1, 12.0, 12.1
- Visual Age: 10.1
OS X:
- Clang: from subversion
- Clang, C++11 mode: from subversion
- Intel: 11.1, 12.0
- GCC: 4.4
- GCC, C++11 mode: 4.4
Windows:
- Visual C++: 8.0, 9.0, 10.0
- GCC, mingw: 4.4.0, 4.6.3, 4.7.0
AIX:
- IBM XL C/C++ Enterprise Edition: V12.1.0.0
FreeBSD:
- GCC: 4.2.1, 32 and 64 bit
Solaris:
- Sun: 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James, Vladimir Prus and Marshall Clow managed this release.

Version 1.50.0

Thu, 28 Jun 2012 08:48:57 -0400

Patches

Boost.Unordered patch - Fixes a bug when compiled using a C++11 compiler, but with a C++03 allocator. When inserting elements, allocator_traits detects that the node can be constructed using an accidental implicit conversion which causes several problems.

New Libraries

Algorithm: A collection of useful generic algorithms, from Marshall Clow. This includes several different searching algorithms, as well as most of the new algorithms from the C++11 standard library
Functional/OverloadedFunction: Overload different functions into a single function object, from Lorenzo Caminiti.
LocalFunction: Program functions locally, within other functions, directly within the scope where they are needed, from Lorenzo Caminiti.
Utility/IdentityType: Wrap types within round parenthesis so they can always be passed as macro parameters, from Lorenzo Caminiti.

Updated Libraries

Accumulators:
- add missing #include <boost/throw_exception.hpp>, fixes #6702.
- work around for msvc which allows ctor templates to be copy ctors, fixes #6535.
- shorten filenames to meet boost guidelines, fixes #6196.
Array:
- add support for Boost.Hash #6791.
Asio:
- Changed the epoll_reactor backend to do lazy registration for EPOLLOUT events.
- Fixed the epoll_reactor handling of out-of-band data, which was broken by an incomplete fix in the last release.
- Changed Asio's SSL wrapper to respect OpenSSL's OPENSSL_NO_ENGINE feature test #define (#6432).
- Fixed windows::object_handle so that it works with Windows compilers that support C++11 move semantics (such as g++).
- Improved the performance of strand rescheduling.
- Added support for g++ 4.7 when compiling in C++11 mode (#6620).
- Fixed a problem where signal_set handlers were not being delivered when the io_service was constructed with a concurrency_hint of 1 (#6657).
Bimap:
- Remove spurious dependency on Boost.Serialization, fixes #3868.
- Solve unused constructor parameter warning, fixes #5749.
- Add key_type and mapped_type (leaving data_type for backward compatibility) typedefs to map views, fixes #6031.
Chrono:
- Fixed Bugs:
  - #6361 integer overflow in boost::chrono::process_real_cpu_clock::now() under Windows 32bits.
  - #6628 compiler warning in process_cpu_clocks.hpp.
  - #6666 thread_clock.hpp needs pthread.h.
Concept Check:
- Fixed:
  - #6738 Shadowed variable warning.
Filesystem:
- Remove Filesystem Version 2 from the distribution. Version 3 is now the only distributed version. Those still using V2 are urged to migrate to V3 as soon as possible.
- Add constexpr value_type preferred_separator to class path.
- Fix #5118, replace_extension doesn't work as specified in documentation. The documentation, implementation, and test cases have all had fixes applied. The documentation had failed to mention that any existing extension is removed. The behavior for simple cases has been reverted to the Version 2 behavior, but with corrections so that complex replacements now work. Two test cases from #5118 have been added.
- Fix #3737, Boost.Filesystem does not compile on Windows Mobile. On Windows, <sys/stat.h> is no longer included.
- Fix #4065, Boost Filesystem lexicographic path comparison inconsistent. This required multiple source code bug fixes and code cleanup, correcting problems not related to lexicographical issues.
- Add class path member function compare for consistency with std::string.
- Tighten BOOST_FILESYSTEM_DYN_LINK and BOOST_FILESYSTEM_STATIC_LINK logic in filesystem/config.hpp so that one or the other is always defined, and both being defined is a #error.
- Fix #6690 and #6737, resolving static linking related problems with VC++ 8 through 11. Note that this fix may reintroduce codecvt thread safety problems #4889, #6320, for these compilers if static linking is used.
- Add path::operator+= and concat functions to tack on things like suffixes or numbers. Suggested by Ed Smith-Rowland and others.
- Fix #6809, Implementation of filesystem::rename() method for MS Windows is wrong, by adding MOVEFILE_COPY_ALLOWED to deal with renames across drives, volumes, file systems. Fix has no effect on non-Windows systems.
- Fix #6819, A path operand with a source that was a one character array was treated as empty, even if it wasn't empty. Such arrays can occur in unions or in code using C variable length array idioms.
- Fix #6932, create_directories throws exception even if error_code is specified.
Foreach:
- Revert fix for #6131 which caused more harm than good.
Geometry:
- Fixed Bugs:
  - the return type of comparable projected point strategy for integer points was wrong (integer), fixed
  - several robustness issues in intersection of segments and polygons, fixed
  - invalid intersection output is filtered out
  - disjoint for multi_polygon's might incorrectly return true, fixed
- Solved tickets
  - 6585 patch for alternative syntax multipoint, applied
  - 6584 patch for bug in distance, applied
  - 5730 same issue as 6584, fixed
  - 6166 patch for missing transformation, applied
  - 6696 invalid intersection output, was (by chance) already fixed in Trunk before reported
- Additional functionality
  - added algorithm "touches" (OGC SF compliant) for *polygon/*polygon
Graph:
- Fixed Bugs:
  - #4622 clear_vertex on a vertex with a self-loop can cause a segmentation fault.
  - #6033 Lowpoint map calculated by biconnected_components(...) is sometimes wrong.
  - #6242 isomorphism doesn't reset mapping.
  - #6435 cube_topology documentation should say 3D, not 2D.
  - #6520 small_world_1_70_6_0p02.png is broken in documentation of graph_parallel.
  - #6564 BGL copy constructor for subgraph does not track local vertices/edges.
  - #6573 BGL: boost::isomorphism routine fails with large graphs.
  - #6583 Dijkstra Visitor Concept docs probably show wrong type for variable.
  - #6647 BGL strong_components do not compile on MSVC 8.
  - #6656 Dependent type in subgraph used without typename.
  - #6707 is_straight_line_drawing.hpp missing #include <map>.
  - #6708 Make bool boost::intersects() in is_straight_line_drawing.hpp inline?
  - #6739 Cannot use write_graphviz_dp with a constified subgraph.
  - #6858 boost::get() calls wrongly resolved by g++.
  - #6892 VertexIndexGraph concept not required for bron_kerbosch_all_cliques().
  - Other bugs and warnings not in Trac.
Hash:
- Support std::array and std::tuple when available (#6806).
- Avoid gcc's -Wfloat-equal warning (#6771).
- Add deprecation warning to the long deprecated boost/functional/detail/container_fwd.hpp.
Iostreams:
- Improved gzip support (#5908).
- Update tests for latest Boost.Filesystem and Boost.Test.
- Fix some documentation errors (#6530, #6650).
Iterator:
- Fixed:
  - #5127 Incorrect result_of usage in transform_iterator
  - #5697 iterator_facade::operator-> is broken for proxy references
MultiArray:
- Concepts bug fix and Workaround for Visual Studio 2010 (#4874)
- Fix to assert.cpp test case (Patch)
Lexical cast:
- boost::bad_lexical_cast exception is now globaly visible and can be catched even if code is compiled with -fvisibility=hidden
- Now it is possible to compile and use library with disabled exceptions #5800
- Better performance, less memory usage and bugfixes for boost::iterator_range<character_type*> conversions
- Fixed bugs and warnings: #6645, #6562, #6812, #6852, #6717, #6770, #6504.
Locale:
- Fixed build issues with STLPort library
- Boost.System is now required depenency
- Fixed bugs #6635, #6833
Math:
- Promoted math constants to be 1st class citizens, including convenient access to the most widely used built-in float, double, long double via three namespaces.
- Added the Owen's T function and Skew Normal distribution written by Benjamin Sobotta.
- Added Hankel functions.
- Corrected issue #6627 nonfinite_num_put formatting of 0.0 is incorrect based on a patch submitted by K R Walker.
- Changed constant initialization mechanism so that it is thread safe even for user-defined types, also so that user defined types get the full precision of the constant, even when long double does not. So for example 128-bit rational approximations will work with UDT's and do the right thing, even though long double may be only 64 or 80 bits.
- Fixed issue in bessel_jy which causes Y[sub 8.5](4[pi]) to yield a NaN.
MSM:
- eUML : better syntax for front-ends defined with eUML as transition table only. Caution: Breaking Change!http://www.boost.org/doc/libs/1_50_0/libs/msm/doc/HTML/ch03s04.html#eUML-composite-table
- Bugfix: graph building was only working if initial_state defined as a sequence.
- Bugfix: flags defined for a Terminate or Interrupt state do not break the blocking function of these states any more.
- Bugfix: multiple deferred events from several regions were not working in every case.
- Bugfix: visitor was passed by value to submachines.
- Bugfix: no_transition was not called for submachines who send an event to themselves.
- Fixed warnings with gcc.
Program Options:
- Improved error reporting (Patch from Leo Goodstadt).
- Support for customizing name of option's value in help messages (#4781)
- Fixed compilation with gcc 4.7 (#6790).
PropertyMap:
- Fixed Bugs:
  - #6539 the return type of get() is not documented correctly.
  - #6721 property_map_traits documentation does not mention reference.
Proto:
- Use decltype-based result_of if and only if the compiler implements N3276.
- For C++11, force parameter to mpl::eval_if_c and mpl::if_c to be bool.
- Disable '__forceinline not inlined' warning on msvc.
Ratio:
- Fixed Bugs:
  - #6498 boost::ratio won't compile with default settings.
ScopeExit:
- New Features:
  - Use variadic macros to specify captures as commas-separated lists (but kept preprocessor sequence syntax for backward compatibility).
  - Capture the object in scope using this_.
  - Support empty captures using void.
  - Implicit lambda-like captures using BOOST_SCOPE_EXIT_ALL on compilers that support C++11 lambda functions.
Thread:
- New Features:
  - #1850 Request for unlock_guard to compliment lock_guard.
  - #2637 Request for shared_mutex duration timed_lock and timed_lock_shared.
  - #2741 Proposal to manage portable and non portable thread attributes.
  - #3567 Request for shared_lock_guard.
  - #6194 Adapt to Boost.Move.
  - #6195 c++11 compliance: Provide the standard time related interface using Boost.Chrono.
  - #6217 Enhance Boost.Thread shared mutex interface following Howard Hinnant proposal.
  - #6224 c++11 compliance: Add the use of standard noexcept on compilers supporting them.
  - #6226 c++11 compliance: Add explicit bool conversion from locks.
  - #6228 Add promise constructor with allocator following the standard c++11.
  - #6230 c++11 compliance: Follows the exception reporting mechanism as defined in the c++11.
  - #6266 Breaking change: thread destructor should call terminate if joinable.
  - #6269 Breaking change: thread move assignment should call terminate if joinable.
  - #6272 c++11 compliance: Add thread::id hash specialization.
  - #6273 c++11 compliance: Add cv_status enum class and use it on the conditions wait functions.
  - #6231 Add BasicLockable requirements in the documentation to follow c++11.
  - #6342 c++11 compliance: Adapt the one_flag to the c++11 interface.
  - #6671 upgrade_lock: missing mutex and release functions.
  - #6672 upgrade_lock:: missing constructors from time related types.
  - #6675 upgrade_lock:: missing non-member swap.
  - Added missing packaged_task::result_type and packaged_task:: constructor with allocator.
  - Added packaged_task::reset()
- Fixed Bugs:
  - #2575 Bug- Boost 1.36.0 on Itanium platform.
  - #4345 thread::id and joining problem with cascade of threads.
  - #4921 BOOST_THREAD_USE_DLL and BOOST_THREAD_USE_LIB are crucial and need to be documented.
  - #5013 documentation: boost::thread: pthreas_exit causes terminate().
  - #5173 boost::this_thread::get_id is very slow.
  - #5351 interrupt a future get boost::unknown_exception.
  - #5516 Upgrade lock is not acquired when previous upgrade lock releases if another read lock is present.
  - #5990 shared_future<T>::get() has wrong return type.
  - #6174 packaged_task doesn't correctly handle moving results.
  - #6222 Compile error with SunStudio: unique_future move.
  - #6673 shared_lock: move assign doesn't works with c++11.
  - #6674 shared_mutex: try_lock_upgrade_until doesn't works.
  - Fix issue signaled on the ML with task_object(task_object const&) in presence of task_object(task_object&&)
Unordered:
- Fix equality for unordered_multiset and unordered_multimap.
- Implement reserve (#6857).
- Avoid gcc's -Wfloat-equal and -Wshadow warnings (#6190, #6771).
- Fix namespace issue with bcp (#6905).
- Fix Sun workarounds (#6784).
- Some internal changes to bucket allocation.
- See the change log for full details.
Wave:
- Wave V2.3.2, see the Changelog for details.
xpressive:
- Remove very ugly lexical_cast hack with a slightly less ugly one.
- Replace MPL assert with static assert since it's problematic in C++11, fixes #6846.

Compilers Tested

Boost's primary test compilers are:

Linux:
- Intel: 11.1
- LLVM Clang 2.8
- GCC: 4.2.4, 4.3.4, 4.4.3, 4.5.3, 4.6.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.3, 4.6.2
OS X:
- Intel: 11.1
- GCC: 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 8.0, 9.0, 10.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.1, 4.7.0
FreeBSD:
- GCC 4.2.1, 32 and 64 bit
QNX:
- QCC, C++0x mode: 4.4.0, 4.4.7, 4.5.4, 4.6.3, 4.7.0

Boost's additional test compilers include:

Linux:
- Clang from subversion
- GCC: 4.2.4, 4.3.4, 4.4.4, 4.5.3, 4.6.2
- GCC, C++0x mode: 4.3.4, 4.4.4, 4.5.3, 4.6.2
- pgCC: 11.9
- Intel: 10.1, 11.1, 12.0, 12.1
- Visual Age 10.1
OS X:
- Clang from subversion
- Intel 11.1, 12.0
- GCC: 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 8.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.2, 4.5.4, 4.6.4, 4.7.0
- GCC, C++0x mode, mingw: 4.5.2
AIX:
- IBM XL C/C++ Enterprise Edition, V12.1.0.0
FreeBSD:
- GCC 4.2.1, 32 and 64 bit
Solaris:
- Sun 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James, Vladimir Prus and Marshall Clow managed this release.

Version 1.49.0

Fri, 24 Feb 2012 16:20:32 -0500

New Libraries

Heap: Priority queue data structures, from Tim Blechmann.

Updated Libraries

Asio:
- Added a new class template basic_waitable_timer based around the C++11 clock type requirements. It may be used with the clocks from the C++11 <chrono> library facility or, if those are not available, Boost.Chrono. The typedefs high_resolution_timer, steady_timer and system_timer may be used to create timer objects for the standard clock types.
- Added a new windows::object_handle class for performing waits on Windows kernel objects. Thanks go to Boris Schaeling for contributing substantially to the development of this feature.
- On Linux, connect() can return EAGAIN in certain circumstances. Remapped this to another error so that it doesn't look like a non-blocking operation (#6048).
- Fixed a compile error on NetBSD (#6098).
- Fixed deadlock on Mac OS X (#6275).
- Fixed a regression in buffered_write_stream (#6310).
- Fixed a non-paged pool "leak" on Windows when an io_service is repeatedly run without anything to do (#6321).
- Reverted earlier change to allow some speculative operations to be performed without holding the lock, as it introduced a race condition in some multithreaded scenarios.
- Fixed a bug where the second buffer in an array of two buffers may be ignored if the first buffer is empty.
Chrono:
- Bug Fixes:
  - #6092 Input from non integral durations makes the compiler fail.
  - #6093 [1/3]second fails as valid duration input.
  - #6113 duplicate symbol when BOOST_CHRONO_HEADER_ONLY is defined.
  - #6243 Sandia-pgi-11.9: more than one instance of overloaded function "min" matches.
  - #6257 process_cpu_clock::now() on linux gives time_points 1/1000 times.
Container:
- Fixed bugs #6499, #6336, #6335, #6287, #6205, #4383.
- Added allocator_traits support for both C++11 and C++03 compilers through an internal allocator_traits clone.
Filesystem:
- Fix #3714, Added test cases and fixes for class path errors when assignment or append used self or portion of self as source.
- Fix #4889, #6320, Locale codecvt_facet not thread safe on Windows. Move Windows, Mac OS X, locale and codecvt facet back to namespace scope. POSIX except OS X uses local static initialization (IE lazy) to ensure exceptions are catchable if environmental variables are misconfigured and to avoid use of locale("") if not actually used.
- Fix #5652, recursive_directory_iterator fails on cyclic symbolic links. Thanks to Daniel Aarno for the patch.
- Fix #5653, recursive_directory_iterator(error_code) can still throw filesystem_error.
- Fix #5900, directory_iterator access violation on Windows if error is thrown. Thanks to Andreas Eckleder for the patch.
- Fix #5900 comment 2, a bug in director_iterator construction with error_code argument that caused increment to be called without the ec argument being passed.
- Fix #5989 by cleaning up test suite path_test.cpp code even though the ticket itself was not a defect, and clarifying docs; iteration over a path yields generic format.
- Fix #5592, Change Windows codecvt processing from CP_THREAD_ACP to CP_ACP.
- Operations function fixes for PGI compiler, thanks to Noel Belcourt.
- Relax permissions test to reflect reality, particularly on the Sandia test platforms.
Foreach:
- Fix for #6131
Geometry:
- Fixed bugs
  - Distance for multi-geometries ignored specified distance strategy.
  - In difference for polygon/multi_polygon (reported 2011/10/24 on GGL-list).
  - Raise exception for calculation of distances of multi-geometrie(s) where one of them is empty
  - Multi DSV did not correctly use settings.
  - Self-intersections could sometimes be missed (introduced in 1.48).
  - Convex hull crashed on empty range (e.g. empty multi point).
- Solved tickets
  - #6028 Documentation: closure.
  - #6178 Missing headerfile.
  - #6021 convex hull of multipoint.
- Additional functionality
  - Support for line/polygon intersections and differences
  - Support for convert of segment/box of different point types
  - Support for append for multi point
  - Scalar functions (distance, area, length, perimeter) now throw an empty_input_exception on empty input
- Documentation
  - Updated support status
- Internal changes
  - Updates in specializations/not_implemented for distance/convert/assign/area
  - Move of wkt/dsv to io folder, making domains redundant
  - Strategy concepts assigned to zero to avoid clang warnings (patched by Vishnu)
Graph:
- Fixed bugs #5881, #6033, #6061, #6137, #6246, #6239, #6293, #6306, #6313 and #6371, plus others not in Trac.
- Re-enabled LEDA graph support (thanks to Jens Muller for the patch).
- Added documentation for edge_predecessor_recorder.
Icl:
- Fixed tickets #6095 and #6210.
- Added move semantics for constructors, assignment operators and binary operators.
Interprocess:
- Fixed bugs #6531, #6412, #6398, #6340, #6319, #6287, #6265, #6233, #6147, #6134, #6058, #6054, #5772, #5738, #5622, #5552, #5518, #4655, #4452, #4383, #4297.
- Fixed timed functions in mutex implementations to fulfill POSIX requirements: Under no circumstance shall the function fail with a timeout if the mutex can be locked immediately. The validity of the abs_timeout parameter need not be checked if the mutex can be locked immediately.
Intrusive:
- Fixed bugs #6347, #6223, #6153.
Lexical cast:
- Fixed bugs and warnings: #6127, #6132, #6159, #6182, #6186, #6193, #6264, #6290, #6298, #6400.
- Better performance and less memory usage for boost::container::basic_string conversions.
Locale:
- Fixed incorrect use of MultiByteToWideChar in detection of invalid input sequences.
Move:
- Fixed bugs #6417, #6183, #6185, #6395, #6396,
PropertyTree:
- Fixes for bugs #4840, #5259, #5281, #5944, #5757, #5710, and #5307.
Proto:
- Force some functions to be inline, fixes #5735.
- Add user documentation for per-domain as_expr and as_child; other doc tweaks.
- Fix some buggy and over-complicated example programs.
- Add some missing copyright notices.
Spirit:
- Spirit V2.5.2, see the 'What's New' section for details.
Thread:
- Fixed Bugs:
  - #2309 Lack of g++ symbol visibility support in Boost.Thread.
  - #2639 documentation should be extended(defer_lock, try_to_lock, ...).
  - #3639 Boost.Thread doesn't build with Sun-5.9 on Linux.
  - #3762 Thread can't be compiled with winscw (Codewarrior by Nokia).
  - #3885 document about mix usage of boost.thread and native thread api.
  - #3975 Incorrect precondition for promise::set_wait_callback().
  - #4048 thread::id formatting involves locale
  - #4315 gcc 4.4 Warning: inline ... declared as dllimport: attribute ignored.
  - #4480 OpenVMS patches for compiler issues workarounds.
  - #4819 boost.thread's documentation misprints.
  - #5040 future.hpp in boost::thread does not compile with /clr.
  - #5423 thread issues with C++0x.
  - #5502 race condition between shared_mutex timed_lock and lock_shared.
  - #5594 boost::shared_mutex not fully compatible with Windows CE.
  - #5617 boost::thread::id copy ctor.
  - #5739 set-but-not-used warnings with gcc-4.6.
  - #5826 threads.cpp: resource leak on threads creation failure.
  - #5839 thread.cpp: ThreadProxy leaks on exceptions.
  - #5859 win32 shared_mutex constructor leaks on exceptions.
  - #6100 Compute hardware_concurrency() using get_nprocs() on GLIBC systems.
  - #6141 Compilation error when boost.thread and boost.move are used together.
  - #6168 recursive_mutex is using wrong config symbol (possible typo).
  - #6175 Compile error with SunStudio.
  - #6200 patch to have condition_variable and mutex error better handle EINTR.
  - #6207 shared_lock swap compiler error on clang 3.0 c++11.
  - #6208 try_lock_wrapper swap compiler error on clang 3.0 c++11.
Unordered:
- On compilers without rvalue references, the containers are no longer movable by default, as move emulation was causing some odd quirks (#6167, #6311). Define BOOST_UNORDERED_USE_MOVE to make them movable - Boost.Move is still used for elements regardless.
- Fix sequence point warning (#6370).
- Better support for C++11 compilers using older standard libraries.
Uuid:
- fixed #6258
- fixed #5325 (sha1 implementation handles messages as long as the specification)
- progress on #6118 (there are fewer warnings)
xpressive:
- Eliminate some unused variable warnings on gcc.

Compilers Tested

Boost's primary test compilers are:

Linux:
- Intel: 11.1
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.5.2, 4.6.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
OS X:
- Intel: 11.1
- GCC: 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 8.0, 9.0, 10.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.1, 4.7.0
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.
QNX:
- QCC, C++0x mode: 4.4.2, 4.6.1, 4.6.2

Boost's additional test compilers include:

Linux:
- GCC: 4.2.4, 4.3.4, 4.4.4, 4.5.2, 4.6.2
- GCC, C++0x mode: 4.3.4, 4.4.4, 4.5.2
- pgCC: 11.9
- Intel: 10.1, 11.1, 12.0
- PathScale: 4.0.8
- Visual Age 10.1
OS X:
- Clang from subversion
- Intel 11.1, 12.0
- GCC: 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 8.0, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.5.2
- GCC, C++0x mode, mingw: 4.5.2
- GCC, mingw 64-bit: 4.4.7, 4.5.4, 4.6.1
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
FreeBSD:
- GCC 4.2.1, 32 and 64 bit
Solaris:
- Sun 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.48.0

Tue, 15 Nov 2011 10:47:30 -0500

New Libraries

Container: Standard library containers and extensions, from Ion Gaztañaga.
Locale: Provide localization and Unicode handling tools for C++, from Artyom Beilis.
Move: Portable move semantics for C++03 and C++11 compilers, from Ion Gaztañaga.

Updated Libraries

Asio:
- Implemented various performance improvements, including:
  - Using thread-local operation queues in single-threaded use cases (i.e. when concurrency_hint is 1) to eliminate a lock/unlock pair.
  - Allowing some epoll_reactor speculative operations to be performed without holding the lock.
  - Improving locality of reference by performing an epoll_reactor's I/O operation immediately before the corresponding handler is called. Also improves scalability across CPUs.
  - Specialising asynchronous read and write operations for buffer sequences that are arrays (boost::array or std::array) of exactly two buffers.
- Fixed compile error in regex overload of async_read_until (#5688).
- Fixed Windows-specific compile error by explicitly specifying the signal() function from the global namespace (#5722).
- Changed deadline_timer implementation to not read clock unless the timer heap is non-empty.
- Changed SSL buffer sizes to be large enough to hold a complete TLS record (#5854).
- Fixed synchronous null_buffers operations so that they obey the user's non-blocking setting (#5756).
- Changed to set fd_set size at runtime when using Windows.
- Disabled MSVC warning due to const qualifier being applied to function type.
- Fixed crash that occurs when using Intel C++ compiler (#5763).
- Changed OpenSSL initialisation to support all available algorithms.
- Fixed SSL error mapping when session is gracefully shut down.
- Added some latency test programs.
- Clarified that a read operation ends when the buffer is full (#5999).
- Fixed exception safety issue in epoll_reactor initialisation (#6006).
- Made number of strand implementations configurable via BOOST_ASIO_STRAND_IMPLEMENTATIONS macro.
- Added support for BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION flag which switches strand allocation to use a round-robin approach rather than hashing.
- Fixed potential strand starvation issue that can occur when strand.post() is used.
Chrono:
- #5979 Added chrono rounding utilities as defined by Howard Hinnant here.
- #5978 Add BOOST_CHRONO_HAS_PROCESS_CLOCKS to know if process clocks are available.
- #5998 Make possible to disable hybrid error handling.
- #5906 Take in account the constexpr as defined in the standard.
- #5907 Take in account noexcept for compilers supporting it.
- Fixed some bugs.
- See the History for more details.
Config:
- Add BOOST_NO_DECLTYPE_N3276 config macro. (See N3276.)
Fusion:
- Make single_view a random access fusion sequence.
- Remove bogus compile-time asserts from fusion::distance.
- Cleaner implementation of segmented Fusion.
Geometry:
- Bugfixes:
  - Robustness issue, in some circumstances the union failed to output. Fixed.
  - Robustness issue, in some circumstances the calculated intersection point was outside the segment. Fixed.
  - Concept issue, cartesian intersect didn't understand segments other than the provided one. Fixed.
  - Sometimes self-intersections in linestrings were missed. Fixed.
  - The fusion coordinate system was not registered correctly. Fixed.
- Solved tickets:
  - #5726 (Segment intersection algorithm still assumes 'first', 'second' members)
  - #5744 (mistake fusion adapt example)
  - #5748 (need include <boost/foreach.hpp>)
  - #5954 (distance_pythagoras skips sqrt() step)
- Improvements on algorithms:
  - Checking self-intersections is now not done automatically, this can blast performance.
  - Besides that, checking self-intersections is made faster.
  - Intersections now avoid outputting duplicate points. So they output the minimal set.
- Additional algorithms:
  - covered_by: within is defined as "within, not on boundary". covered_by is "within or on boundary"
- Additional functionality:
  - within: strategies can now be specified for within<point, box> and within<box, box>
  - convert: a much broader range of conversions is supported
  - assign: idem, (currently partly) synonym for convert (but reversed arguments)
- Additional coordinate types:
  - Basic support for Boost.Rational
Graph:
- Fixed bugs #5185, #5506, #5813 and #5919.
- Various other bug fixes not in Trac.
- Changed edge_descriptor type for reverse_graph to a new data type to avoid ambiguities with the edge_descriptor of the underlying graph.
Interprocess:
- Fixed bugs #2796, #4031, #4251, #4452, #4895, #5077, #5120, #5123, #5230, #5197, #5287, #5294, #5306, #5308, #5392, #5409,
- Added support to customize offset_ptr and allow creating custom managed segments that might be shared between 32 and 64 bit processes.
- Shared memory in windows has again filesystem lifetime: kernel bootstamp and WMI use to get a reliable timestamp was causing a lot of trouble.
Intrusive:
- Fixed bugs #4797, #5165, #5183, #5191.
Lexical cast:
- Added code to work with Inf and NaN values on any platform (#5689).
- New Quickbook documentation (#5723).
- Better performance and less memory usage for many combinations of Source and Target types.
- Better performance for C locale.
Math:
- Added new series evaluation methods to the cyclic Bessel I, J, K and Y functions. Also taken great care to avoid spurious over and underflow of these functions. Fixes issue #5560.
- Added an example of using Inverse Chi-Squared distribution for Bayesian statistics, provided by Thomas Mang.
- Added tests to use improved version of lexical_cast which handles C99 nonfinites without using global facets.
- Corrected wrong out-of-bound uniform distribution CDF complement values #5733.
- Enabled long double support on OpenBSD (issue #6014).
- Changed nextafter and related functions to behave in the same way as other implementations - so that nextafter(+INF, 0) is a finite value (issue #5832).
- Changed tuple include configuration to fix issue when using in conjunction with Boost.Tr1 (issue #5934).
- Changed class eps_tolerance to behave correctly when both ends of the range are zero (issue #6001).
- Fixed missing include guards on prime.hpp (issue #5927).
- Removed unused/undocumented constants from constants.hpp (issue #5982).
- Fixed missing std:: prefix in nonfinite_num_facets.hpp (issue #5914).
- Minor patches for Cray compiler compatibility.
MSM:
- eUML: added easier event reprocessing: process(event_) and reprocess()
- Rewrite of internal transition tables. There were a few bugs (failing recursivity in internal transition tables of sub-sub machines) and a missing feature (unused internal transition table of the main state machine).
- Bugfixes
  - Reverted favor_compile_time policy to Boost 1.46 state
  - none event now is convertible from any other event
  - eUML and pseudo exit states
  - Fixed not working Flag_AND
  - Fixed rare bugs causing multiple processing of the same event in a submachine whose transition table contains this event and a base event of it.
  - gcc warnings about unused variables
- Breaking change: the new internal transition table feature causes a minor breaking change. In a submachine, the "Fsm" template parameter for guards / actions of an internal table declared using internal_transition_table now is the submachine, not the higher-level state machine. Internal transitions declared using internal rows in the higher-level state machine keep their behavior (the "Fsm" parameter is the higher-level state machine). To sum up, the internal transition "Fsm" parameter is the closest state machine containing this transition.
Numeric.Conversion:
- Added numeric_cast_traits; see 'numeric_cast_traits' for details.
Proto:
- Breaking Change: Reduce numbers of operator overloads by using rvalue references on compilers that support them. Any user code that defines additional operator overloads on Proto expressions could potentially be rendered ambiguous by this change. The solution is to use a grammar to disable Proto's operators that are made ambiguous by any user-defined operators.
- Move definitions of Proto tag types into an ADL-blocking namespace.
- Add second template parameter to proto::siwtch_ to control dispatching to cases.
- Allow dependent domains to be specified with BOOST_PROTO_EXTENDS and BOOST_PROTO_BASIC_EXTENDS.
Regex:
- Fixed issues: #698, #5835, #5958, #5736.
Spirit:
- Spirit V2.5.1, see the 'What's New' section for details.
TypeTraits:
- Extension to support operator detection.
Unordered:
- Improved support for the C++11 standard - breaking change to equality and emplace.
- Use Boost.Move to implement move semantics.
- See the change log for full details.
Wave:
- See the Changelog for details.

Compilers Tested

Boost's primary test compilers are:

Linux:
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.5.1, 4.5.2, 4.6
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- Intel 11.1
OS X:
- Intel 11.1
- GCC: 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 8.0, 9.0, 10.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.1
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.
QNX:
- QCC 4.4.2
- QCC, C++0x mode: 4.4.2, 4.6.1

Boost's additional test compilers include:

Linux:
- Clang from subversion, with libc++ and GNU libstdc++
- LLVM Clang 2.8 x
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.4, 4.5.2, 4.5.4, 4.6.1, 4.6.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.4.4, 4.5.2
- pgCC: 11.2 x
- Intel: 10.1, 11.1, 12.0
- PathScale: 4.0.8
- Visual Age 10.1
OS X:
- Clang from subversion, with libc++ and GNU libstdc++.
- Intel 11.1.
- GCC: 4.2.1, 4.4.4.
- GCC, C++0x mode: 4.4.4.
Windows:
- Visual C++ 8.0, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.2, 4.5.4, 4.6.1
- GCC, C++0x mode, mingw: 4.5.2
- GCC, mingw 64-bit: 4.7.0
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.
Solaris:
- Sun 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.47.0

Mon, 11 Jul 2011 18:19:33 -0400

New Libraries

Chrono: Useful time utilities, from Vicente J. Botet Escribá.
Geometry: Geometry Library, from Barend Gehrels, Bruno Lalande and Mateusz Loskot.
Phoenix: Define small unnamed function objects at the actual call site, and more, from Joel de Guzman, Dan Marsden and Thomas Heller.
Ratio: Compile time rational arithmetic, from Vicente J. Botet Escribá.

Updated Libraries

Accumulators:
- New statistical accumulators: sum_kahan, sum_of_weights_kahan, sum_of_variates_kahan.
Asio:
- Many new features and improvements:
  - Signal handling.
  - A debugging aid for asynchronous programs.
  - Timeouts on socket iostreams.
  - Composed connect operations.
  - Rewritten SSL implementation.
  - C++0x move support.
  - Compatibility with POSIX fork().
  - ... and much more. See the Revision History in the Boost.Asio documentation for more details.
- Tickets addressed: #2879, #3238, #3297, #3307, #3702, #3741, #3900, #3905, #3939, #3958, #4162, #4971, #5124, #5128, #5418, #5453.
Config:
- Fixed bug #1988
DateTime:
- Fixed bugs #4920, #3651, #4845, #4475, #4952, #5345, #5250, #4798, #4754, #4411, #5126, #4780, #2475, #1674.
Dynamic Bitset:
- Fixed bug #5439
Foreach:
- Use rvalue refs on supporting compilers for const rvalue detection.
Function:
- Bug fixes: #3410, #3618, #3912, #4073, #4325, #4717, #4765.
Function Types:
- Bug fixes: #1653, #3162.
Graph:
- Bug fixes.
- Remove deprecated function kolmogorov_max_flow, use boykov_kolmogorov_max_flow instead.
- Removed <boost/graph/detail/is_same.hpp> header since its functionality is in Boost.Type_Traits.
Iostreams:
- Support filesystem v3 paths (#4485).
- Fix a memory leak in chain (#4922).
Iterator:
- Add function_input_iterator (#2893).
- Bug fixes: #1427, #1517, #3434.
Lexical cast:
- Better performance and less memory usage for many combinations of Source and Target types (#5564, #5417, #4397, #5350, #5576).
- Documentation updated (#5576, #5494).
Logic:
- Bug fixes: #3093, #3600.
Math:
- Added changesign function to sign.hpp to facilitate addition of nonfinite facets.
- Addition of nonfinite facets from Johan Rade, with tests, examples of use for C99 format infinity and NaN, and documentation.
- Added tests and documentation of changesign from Johan Rade.
Meta State Machine:
- Added a stop() method in the back-end.
- Added partial support for Boost.Phoenix functors in eUML.
- Added the possibility to choose when state switching occurs.
- Bugfixes:
  - #5117, #5253, #5533, #5573.
  - gcc warnings about unused variables.
  - better implementation of favor_compile_time back-end policy.
  - bug with eUML and state construction.
  - incorrect eUML event and state macros.
  - incorrect event type passed to a direct entry state's on_entry action.
  - more examples.
MultiIndex:
- Fixed an ADL problem in composite_key_compare related with Boost.Ref.
- Maintenance fixes.
Proto:
- Pre-preprocessed for better compile times.
- Default preprocessor limits raised:
  - Max expression arity (BOOST_PROTO_MAX_ARITY) bumped from 5 to 10.
  - Max function call arity (BOOST_PROTO_MAX_FUNCTION_CALL_ARITY) bumped from 5 to 10.
  - Max logical operator arity (BOOST_PROTO_MAX_LOGICAL_ARITY) bumped from 8 to 10.
- Better integration of proto::basic_expr to avoid accidental needless instantiations of proto::expr.
Random:
- Synchronized with the new standard.
  - Many new distributions added: chi_squared_distribution, negative_binomial_distribution, fisher_f_distribution, student_t_distribution, weibull_distribution, extreme_value_distribution, discrete_distribution, piecewise_constant_distribution, piecewise_liear_distribution
  - Renamed uniform_int and uniform_real to uniform_int_distribution and uniform_real_distribution.
  - Added members to all distributions: param_type, param, stream operators, comparison operators, min and max.
  - Allow distributions to be used directly with generators without use of variate_generator.
  - Changed the meaning of the parameters of geometric_distribution and lognormal_distribution.
  - Added a second parameter to gamma_distribution.
  - Added seed_seq and added the corresponding constructors and seed overloads the generators.
  - Added generate_canonical.
  - Renamed the engine tempates. e.g. mersenne_twister becomes mersenne_twister_engine.
  - New engine adapter independent_bits_engine.
  - Added new predefined engine typedefs: mt19937_64, ranlux[24|48][_base], knuth_b.
  - Updated seeding algorithms.
  - Added discard
  - Use unsigned types instead of signed types in all the predefined engines.
- Bug fixes:
  - linear_congruential_engine could assert because the modular arithmetic was not implemented in all cases. shuffle_output, now called shuffle_order_engine, could cause integer overflow. These cases were not triggered by any predefined engines.
  - uniform_small_int now actually behaves as documented.
- New efficient algorithms for binomial_distribution and poisson_distribution.
- Moved all features into namespace boost::random
- Backwards compatibility issues:
  - The seeding algorithms have changed. This was unavoidable for compatibility with the standard. Not to mention that some of the existing algorithms were weird and inconsistent.
    
    Seeding with an integer: The behaviour should be unchanged for most generators except lagged_fibonacci and subtract_with_carry (and thus ranlux).
    
    Seeding a generator with another generator: This has been enabled by making all all generators models of SeedSeq. Therefore, if you seed a Boost.Random generator with a non Boost.Random generator, your code will no longer compile. The algorithm has changed, so code using this seeding method will yield different values.
    
    Seeding a generator from a pair of iterators: This implicitly assumed that the elements were 32-bit integers in some places, but not everywhere. I've added this requirement everywhere and updated the algorithms accordingly. The behaviour of generators with a value_type no more than 32 bits should be unchanged.
  - Renaming:
    
    Whenever a class was renamed, there is a wrapper with the old name. There are also using declarations in namespace boost for everything that was moved.
    
    The names of a few accessors in the distributions changed. Both the old and the new names are allowed.
  - geometric_distribution and lognormal_distribution: The behaviour is different at runtime. boost::geometric_distribution and boost::lognormal_distribution provide the old behaviour, boost::random::geometric_distribution and boost::random::lognormal_distribution provide the new behaviour.
  - Streaming: gamma_distribution has a new parameter, thus text saved with the old version will not readable by the new version.
  - variate_generator is now a simple pass through wrapper. Code that assumes that it will adjust the generator's result type to match the distribution will no longer work. This is not an issue with any of the distributions provided by Boost.Random.
  - Return types: The result_types of some generators have changed slightly. Some signed types have changed to unsigned to match the standard.
  - has_fixed_range: This is now always false, as it doesn't appear to be very useful and is excessively cumbersome. Anything that was accessing const_min and const_max without first checking has_fixed_range was incorrect to begin with.
Range:
- Fixed the end position irange when step size is greater than 1 (#5544).
Spirit:
- Spirit V2.5, see the 'What's New' section for details.
Tokenizer:
- Fixed bug #4649.
Utility:
- Bug fixes: #4432.
Uuid:
- Fixed tickets: (#5570, #4601, #4991, #5145, #5235).
Wave:
- Wave V2.3.0, see the Changelog for details.

Build System

The official name of Boost.Build executable was changed to b2. The bootstrap scripts create a copy with the old name bjam to prevent third-party build scripts from failing.

Updated Tools

BoostBook:
- Handle doxygen tags: \see, tparam, ref (for classes only).
- Support note for classes as well as functions.
Quickbook:
- Generate consistent ids for headings.
- Improved unicode support for windows.
- Warn about windows paths, as they aren't portable.
- Reverse deprecation of [br].
- Support date ranges and comma seperated clauses in copyright attributes.
- Improved delimeter checking for simple markup (e.g. *bold*).
- Pass-thru comments in code snippets.
- __FILENAME__ macro now generates relative paths.
- Allow quickbook escapes inside comments in syntax highlighted code.

Compilers Tested

Boost's primary test compilers are:

Linux:
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.3.5, 4.4.1, 4.4.3, 4.4.5, 4.5.1, 4.5.2, 4.6.0, 4.6.1
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- Intel 12.0
OS X:
- Apple Clang 2.1
- Intel 11.1
- GCC: 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 7.1, 9.0, 10.0
- GCC, mingw: 4.4.0
FreeBSD:
- GCC 4.2.1, 64 bit
QNX:
- QCC

Boost's additional test compilers include:

Linux:
- Clang from subversion, with GNU libstdc++.
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.3.5, 4.4.3, 4.4.5, 4.5.1, 4.5.2, 4.6.0, 4.6.1
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- pgCC: 11.2
- Intel: 10.1, 11.0, 11.1, 12.0
- PathScale: 3.2
OS X:
- Clang from subversion, with GNU libstdc++.
- Intel 11.1
- GCC: 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 7.1, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.5.2
- GCC, C++0x mode, mingw: 4.5.2
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.46.1

Sat, 12 Mar 2011 10:45:53 -0500

Updated Libraries

Asio:
- EV_ONESHOT seems to cause problems on some versions of Mac OS X, with the io_service destructor getting stuck inside the close() system call. Changed the kqueue backend to use EV_CLEAR instead (#5021).
- Fixed compile failures with some versions of g++ due to the use of anonymous enums (#4883).
- Fixed a bug on kqueue-based platforms, where some system calls that repeatedly fail with EWOULDBLOCK are not correctly re-registered with kqueue.
- Changed asio::streambuf to ensure that its internal pointers are updated correctly after the data has been modified using std::streambuf member functions.
- Fixed a bug that prevented the linger socket option from working on platforms other than Windows.
Fusion:
- Fix disable_if for Visual C++ 7.1/8.0
Filesystem:
- Fix for STLPort (#5217).
- PGI large file support
Graph:
- Bug fixes, including fixes for: #5181, #5180, #5199 and #5175.
Icl:
- Intersects for interval_maps and segment_type/element_type (#5207).
- Fixed some ambiguous calls to functions in boost and std namespaces.
- Other bug fixes, and documentation fixes.
Math:
- Several minor bug fixes.
Polygon:
- Disabled 45-degree booleans optimization.
Proto:
- Make display_expr copyable (#5096).
- Fix const correctness problem in pass_through.
Property Tree:
- Fix compile error in JSON parser.
Signals2:
- Fix unused parameter warning.
TR1:
- Allow specialization of std::tr1::hash.
- Improved support for Pathscale and Sun compilers.
Unordered:
- Add missing copy constructors and assignment operators when using rvalue references (#5119).

Other changes

Update getting started guide to reflect changes to boost build.
In quickbook, workaround optimization bug in g++ 4.4.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.1, 4.4.3, 4.4.5, 4.5.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- Intel: 10.1, 11.0, 11.1
- Clang: 2.8
- Pathscale: 3.2
OS X:
- GCC: 4.0.1, 4.2.1, 4.4
- GCC, C++0x mode: 4.4.
- Intel: 11.1
Windows:
- Visual C++: 7.1, 8.0, 9.0 and 10.0.
- GCC, mingw: 4.4.0.
FreeBSD:
- GCC: 4.2.1, 64 bit.

Boost's additional test compilers include:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.4, 4.4.5, 4.5.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- pgCC: 11.2
- Intel: 10.1, 11.0, 11.1
- PathScale: 3.2, 4.0.8
- Visual Age C++: 10.1
- Clang from subversion
OS X:
- Intel C++ Compiler: 10.1, 11.0, 11.1
- GCC: 4.0.1, 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
- Clang from subversion, with GNU libstdc++, libc++ and libc++ in C++0x mode.
Windows:
- Visual C++: 7.1, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.5.1
- GCC, mingw, C++0x mode: 4.5.1
- Borland: 6.1.3 (2009), 6.2.1 (2010)
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
Solaris:
- Sun C++: 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.46.0

Mon, 21 Feb 2011 15:36:13 -0500

New Libraries

Icl: Interval Container Library, interval sets and maps and aggregation of associated values, from Joachim Faulhaber.

Updated Libraries

Array:
- Added support for cbegin/cend (#4761)
- Fixed a problem with the Sun compiler (#4757)
Asio:
- Fixed an integer overflow problem that occurs when ip::address_v4::broadcast() is used on 64-bit platforms.
- Fixed a problem on older Linux kernels (where epoll is used without timerfd support) that prevents timely delivery of deadline_timer handlers, after the program has been running for some time (#5045).
Bind:
- make_adaptable now documented (#4532)
Concept Check:
- fixed warnings with self-assignment (#4918)
Filesystem:
- Version 3 of the library is now the default.
- IBM vacpp: Workaround for compiler bug affecting iterator_facade. (#4912)
- Verify, clarify, document that <boost/config/user.hpp> can be used to specify BOOST_FILESYSTEM_VERSION. (#4891)
- Replaced C-style assert with BOOST_ASSERT.
- Undeprecated unique_path(). Instead, add a note mentioning the workaround for lack of thread safety and possible change to cwd. unique_path() is just too convenient to deprecate!
- Cleared several GCC warnings.
- Changed V2 code to use BOOST_THROW_EXCEPTION.
- Windows: Fix status() to report non-symlink reparse point correctly.
- Add symlink_option to recursive_directory_iterator, allowing control over recursion into directory symlinks. Note that the default is changed to not recurse into directory symlinks.
- Reference documentation cleanup, including fixing missing and broken links, and adding missing functions.
- Miscellaneous implementation code cleanup.
Fusion:
- vector copy constructor now copies sequence members in the same order on different platforms (#2823)
Graph:
- Fixed Graphviz output to work on Visual C++ 7.1.
- Replaced assert with BOOST_ASSERT.
- Changed to Boost.Filesystem v3.
- Fixed the following bugs from Trac: #1021, #4556, #4631, #4642, #4715, #4731, #4737, #4753, #4758, #4793, #4843, #4851, #4852, #4887, #4914, #4966.
- Fixed various bugs not in Trac.
Hash:
- Support for std::type_index (#4756).
- Avoid -Wconversion warnings.
Iostreams:
- Use BOOST_ASSERT instead of assert.
- Fixed flush regression (#4590).
Iterator:
- fixed problem with implicit_cast (#3645)
Math:
- Added Wald, Inverse Gaussian and geometric distributions.
- Added information about configuration macros.
- Added support for mpreal as a real-numered type.
Meta State Machine:
- Compile-time state machine analysis.
- Boost.Parameter interface definition for msm::back::state_machine<> template arguments.
- Possibility to provide a container for the event and deferred event queues. A policy implementation based on a more efficient Boost.CircularBuffer is provided.
- msm::back::state_machine<>::is_flag_active method made const.
- Added possibility to enqueue events for delayed processing.
- Bugfixes
  - #4926.
  - stack overflow using the Defer functor
  - anonymous transition of a submachine not called for the initial state
Optional:
- Updated test results with information about expected failures (#2294)
Pool:
- Now can set a max_size for pool (#2696)
- boost/pool/pool.hpp uses reinterpret_cast instead of static_cast (#2941)
- boost::pool_allocator now works with vector of vectors (#386)
- Boost pool is now compatible with Microsoft memory leak detection (#4346)
Program Options:
- Fixed errors in examples in docs (#3992, #4858)
- Now takes argv as const (#3909)
Proto:
- Breaking change: boost/proto/core.hpp no longer defines functional::pop_front and functional::reverse, which have moved to their own headers under boost/proto/functional
- Add callable wrappers for more Fusion algorithms (including fusion::at); and callable wrappers for some std utilities like make_pair, first and second, all under the new boost/proto/functional directory
- Allow transforms to be specified separately from a grammar
- proto::matches preserves domain-specific expression wrappers
- Fix ADL issue with operator, in proto::and_ transform
- Fix handling of grammar checking in expressions involving multiple domains (#4675)
- Fix ambiguous operator<< in proto::display_expr (#4910)
- fusion::is_sequence answers true for Proto expressions (#5006)
- Eliminate -Wundef GCC warning in boost/proto/fusion.hpp (#5075)
Signals:
- gcc warning cleanup (#4365)
Spirit:
- Spirit V2.4.2, see the 'What's New' section for details.
Tokenizer:
- isspace/ispunct was called with wrong character type (#4791)
Unordered:
- Avoid using operator& with the value type.
- Avoid -Wconversion warnings.
Wave:
- See the Changelog for details.

Updated Tools

Boostbook:
- Better support for attributes on root elements - including lang.
Inspect:
- Check that Boost headers do not use C's assert macro.
Quickbook:
- Add support for lang attribute in documentation info.
- Improved anchors.
- Support import, include and xinclude in conditional phrases.
- Uses Filesystem 3.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.5, 4.5.2,
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0, 4.5.2
- Intel: 10.1, 11.0, 11.1
- Clang: 2.8
- Pathscale: 3.2.
OS X:
- GCC: 4.0.1, 4.2.1, 4.4
- GCC, C++0x mode: 4.4.
- Intel: 11.1
Windows:
- Visual C++: 7.1, 8.0, 9.0 and 10.0.
- GCC, mingw: 4.4.0.
FreeBSD:
- GCC: 4.2.1, 64 bit.

Boost's additional test compilers include:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.3.5, 4.4.3, 4.4.5, 4.5.0, 4.5.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0, 4.5.2
- pgCC 11.1
- Intel: 10.1, 11.0, 11.1
- PathScale: 3.2, 4.0
- Visual Age C++ 10.1
- Clang from subversion
OS X:
- Intel C++ Compiler: 10.1, 11.0, 11.1
- GCC: 4.0.1, 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
- Clang from subversion
Windows:
- Visual C++: 7.1, 8.0, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.5.1, 4.6.0
- GCC, mingw, C++0x mode: 4.5.1
- Borland: 6.1.3 (2009), 6.2.1 (2010)
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
FreeBSD:
- GCC 4.2.1, 64 bit
Solaris:
- Sun C++: 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.45.0

Fri, 19 Nov 2010 11:00:00 EST

Updated Libraries

Asio:
- Fixed a problem on kqueue-based platforms where a deadline_timer may never fire if the io_service is running in a background thread (#4568).
- Fixed a const-correctness issue that prevented valid uses of has_service<> from compiling (#4638).
- Fixed MinGW cross-compilation (#4491).
- Removed dependency on deprecated Boost.System functions (#4672).
- Ensured close()/closesocket() failures are correctly propagated (#4573).
- Added a check for errors returned by InitializeCriticalSectionAndSpinCount (#4574).
- Added support for hardware flow control on QNX (#4625).
- Always use pselect() on HP-UX, if it is available (#4578).
- Ensured handler arguments are passed as lvalues (#4744).
- Fixed Windows build when thread support is disabled (#4680).
- Fixed a Windows-specific problem where deadline_timer objects with expiry times set more than 5 minutes in the future may never expire (#4745).
- Fixed the resolver backend on BSD platforms so that an empty service name resolves to port number 0, as per the documentation (#4690).
- Fixed read operations so that they do not accept buffer sequences of type const_buffers_1 (#4746).
- Redefined Protocol and id to avoid clashing with Objective-C++ keywords (#4191).
- Fixed a vector reallocation performance issue that can occur when there are many active deadline_timer objects (#4780).
- Fixed the kqueue backend so that it compiles on NetBSD (#4662).
- Fixed the socket io_control() implementation on 64-bit Mac OS X and BSD platforms (#4782).
- Fixed a Windows-specific problem where failures from accept() are incorrectly treated as successes (#4859).
- Deprecated the separate compilation header <boost/asio/impl/src.cpp> in favour of <boost/asio/impl/src.hpp> (#4560).
Config:
- Added new defect macros, BOOST_NO_VARIADIC_MACROS and BOOST_NO_NUMERIC_LIMITS_LOWEST.
- Minor fixes (#4670, #4563, #4474, #4508).
Flyweight:
- Fixed a hanging problem with intermodule_holder in Win32 platforms related to a Boost.Interprocess issue described at ticket #4606.
- Removed an internal assertion incompatible with program termination via std::exit.
Foreach:
- Fix ambiguitiy by making auto_any constructor explicit.
Fusion:
- Added BOOST_FUSION_ADAPT_ADT, BOOST_FUSION_ADAPT_TPL_ADT, BOOST_FUSION_ADAPT_ASSOC_ADT and BOOST_FUSION_ADAPT_ASSOC_TPL_ADT.
Graph:
- Added Stoer-Wagner min-cut algorithm contributed by Daniel Trebbien.
- Added implicit graph (implicit_graph) and A* (astar_maze) examples contributed by W. P. McNeill.
- Added bundled property support for graph properties.
- Fixed bugs #4556, #4622, #4631, #4715, #4753, #4758 and #4793 plus others not in Trac.
- Fixed documentation bugs #4731 and #4737.
Interprocess:
- Fixed bugs #1080, #3284, #3439, #3448, #3582, #3682, #3829, #3846, #3914, #3947, #3950, #3951, #3985, #4010, #4417, #4019, #4039, #4218, #4230, #4250, #4297, #4350, #4352, #4426, #4516, #4524, #4557, #4606, #4685, #4694.
- Added support for standard rvalue reference move semantics (tested on GCC 4.5 and VC10).
- Permissions can be detailed for interprocess named resources.
- mapped_region::flush initiates disk flushing but does not guarantee it's completed when returns, since it is not portable.
- FreeBSD and MacOS now use posix semaphores to implement named semaphores and mutex.
Math:
- Added inverse gamma distribution and inverse chi_square and scaled inverse chi_square.
- Added warnings about potential ambiguity with std random library in distribution and function names.
- Editorial revision of documentation, and added FAQ.
Meta State Machine:
- Support for serialization.
- Possibility to use normal functors (from functor front-end) in eUML.
- New constructors where substates / submachines can be taken as arguments. This allows passing arguments to the constructor of a submachine.
- Bugfixes (anonymous transitions)
MultiArray:
- Fixes for bugs #3581, #3820, #3989, #4032, plus other bugs not in Trac.
- Added new examples and test cases.
Proto:
- Knock down value of proto::N, fixes bug #4602,
- Support non-rtti compilers
- Fix bug with proto::matches, array types and the wildcard pattern.
- Make Proto work on MSVC with the /clr option
- Add const-qualified overloads of proto::eval
Spirit: Spirit V2.4.1, see the 'What's New' section for details.
TypeTraits:
- Added new traits add_rvalue_reference, add_lvalue_reference and common_type.
- Minor fixes to is_signed, is_unsigned and is_virtual_base_of.
uBLAS:
- Tickets closed:
  - #4410,
  - #3397,
  - #795,
  - #3514,
- Mixed types operation are possible and new tests added (like matrix<complex>+matrix<double>),
- New features:
  - a new size<> operator is available. For example size<1>(A+B) give the number of rows of the sum of matrices A and B,
Unordered:
- Fix inserting from iterators which return by copy from operator* in boost::unordered_map and boost::unordered_set.
Wave:
- See the Changelog for details.
Xpressive:
- xpressive::as handles wide-char sub_match objects, fixes bug #4496

Updated Tools

Boostbook:
- Fix syntax highlighter for comments at the end of code blocks.
Quickbook:
- Fix command line macros.
- Nested code snippets.
- Nested documentation info comments.
- Revert xml escaping document info, it broke some documentation files (will now be in 1.6).
- Some other small tweaks. See the change log for more info.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.5, 4.5.1.
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0.
- Intel: 10.1, 11.0, 11.1
- Pathscale: 3.2.
OS X:
- GCC: 4.0.1, 4.2.1, 4.4
- GCC, C++0x mode: 4.4.
- Intel: 11.1
Windows:
- Visual C++: 7.1, 8.0, 9.0 and 10.0.
- GCC, mingw: 4.3.3.
FreeBSD:
- GCC: 4.2.1, 32 bit.
- GCC: 4.2.1, 64 bit.

Boost's additional test compilers include:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.5, 4.5.0, 4.6.0 (dev version).
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0.
- Intel: 10.1, 11.0, 11.1.
- pgCC 10.1.
- PathScale: 3.2.
- Clang from subversion.
OS X:
- Intel C++ Compiler: 10.1, 11.0, 11.1.
- GCC: 4.0.1, 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
- Clang from subversion.
Windows:
- Borland: 5.9.3, 6.1.3 (2009), 6.2.1 (2010), 6.3.0
- GCC, mingw: 4.3.3, 4.4.5, 4.5.1
- GCC, mingw, C++0x mode: 4.5.1
- Visual C++: 7.1, 8.0, 9.0, 10.0
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0.
FreeBSD:
- GCC 4.2.1, 64 bit.
Solaris:
- Sun C++: 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.44.0

Fri, 13 Aug 2010 13:00:00 EDT

New Libraries

Meta State Machine: High-performance expressive UML2 finite state machines, from Christophe Henry
Polygon: Booleans/clipping, resizing/offsetting and more for planar polygons with integral coordinates, from Lucanus Simonson.

Updated Libraries

Accumulators:
- Correct miscellaneous documentation inaccuracies
Asio:
- Reduced compile times. (Note that some programs may need to add additional #includes, e.g. if the program uses boost::array but does not explicitly include <boost/array.hpp>.)
- Reduced the size of generated code.
- Refactored deadline_timer implementation to improve performance.
- Improved multiprocessor scalability on Windows by using a dedicated hidden thread to wait for timers.
- Improved performance of asio::streambuf with async_read() and async_read_until(). These read operations now use the existing capacity of the streambuf when reading, rather than limiting the read to 512 bytes.
- Added optional separate compilation. To enable, add #include <boost/asio/impl/src.cpp> to one source file in a program, then build the program with BOOST_ASIO_SEPARATE_COMPILATION defined in the project/compiler settings. Alternatively, BOOST_ASIO_DYN_LINK may be defined to build a separately-compiled Asio as part of a shared library.
- Added new macro BOOST_ASIO_DISABLE_FENCED_BLOCK to permit the disabling of memory fences around completion handlers, even if thread support is enabled.
- Reworked timeout examples to better illustrate typical use cases.
- Ensured that handler arguments are passed as const types.
- Fixed incorrect parameter order in null_buffers variant of async_send_to (#4170).
- Ensured unsigned char is used with isdigit in getaddrinfo emulation (#4201).
- Fixed handling of very small but non-zero timeouts (#4205).
- Fixed crash that occurred when an empty buffer sequence was passed to a composed read or write operation.
- Added missing operator+ overload in buffers_iterator (#4382).
- Implemented cancellation of null_buffers operations on Windows.
Config:
- Added new defect macro, BOOST_NO_COMPLETE_VALUE_INITIALIZATION.
- Added new defect macro BOOST_NO_0X_HDR_TYPEINDEX, fixes issue #4274.
- Added support for code visibility in GCC.
- Fixed issues #4385, #4324, #4221, #4182, #4178, #4152, #4115. #4112, #4059, #4041, #4012.
Filesystem:
- This release contains both version 2 and version 3 of the library. Version 3 is a major upgrade that will break some existing user code, so version 2 is the default. Users are encouraged to migrate to version 3. See 'Version 2' and 'Version 3' for more information.
- Fix problems with symbol visibility for shared libraries.
- Fix various minor problems.
- Fixed issues: #3863, #4248.
Foreach:
- Add boost/foreach_fwd.hpp for forward declarations of foreach's customization points, fixes #3998.
- Remove out-of-date work-arounds for sun compilers, fixes #4306.
Fusion:
- Added fusion::reverse_fold, fusion::iter_fold and fusion::reverse_iter_fold (#1623).
Hash:
- Option to prevent implicit casts when calling the hash function by defining the macro BOOST_HASH_NO_IMPLICIT_CASTS, which can avoid some subtle problems. This might be activated by default in a future version.
Iostreams:
- Several fixes for file descriptors class, including a breaking change to the constructors and open methods for file_descriptor, file_descriptor_source and file_descriptor_sink. See the documentation for details. The old methods are still available if you define BOOST_IOSTREAMS_USE_DEPRECATED (#3323, #3517, #4335).
- Fix several issues with compression and decompression (#2318, #4091, #3348, #2783, #1579, #3853).
- And a load more miscellaneous fixes (#3851, #3279, #3689, #2356, #2996, #4102, #2998, #1612, #2325).
- Thanks to Steven Watanabe for almost all these fixes. For more detail see the release notes.
Math:
- Fixed incorrect range and support for Rayleigh distribution.
MPL:
- Make mpl::string work with mpl::transform.
Multi-index Containers:
- Fixed a bug preventing the use of modify_key with rollback in ordered and hashed indices when Modifier and Rollback are different types (ticket #4130).
Proto:
- Minor change in behavior: when using proto::and_ as a transform, apply all transforms but only return the result of applying the last. See Proto's Release Notes for details.
- Minor change in behavior: proto::as_expr and proto::as_child no longer run objects that are already proto expressions through the expression domain's generator. See Proto's Release Notes for details.
- Minor change in behavior: Proto uses proto::basic_expr instead of proto::expr when possible for better compile times. See Proto's Release Notes for details.
- Add support for sub-domains.
- Introduce per-domain as_expr and as_child customization points to allow for domain-specific customization of variable capture behavior.
- The proto::_default transform is also a grammar that matches the expressions the transform knows how to handle.
- Add proto::_void, a no-op primitive transform that does nothing and returns void.
- The proto::pass_through transform doesn't strip expression wrappers, fixes #4175.
- Const-correctness fixes when invoking proto domains.
Regex:
- Fixed issues: #4309, #4215, #4212, #4191, #4132, #4123, #4114, #4036, #4020, #3941, #3902, #3890.
Spirit: Spirit V2.4, see the 'What's New' section for details.
System:
- Change system_category and generic_category to functions, to conform to the C++0x FCD. This change may cause compile errors some user code; the fix is add "()" to references to system_category and generic_category, so that they become function calls.
- Fix problems with symbol visibility for shared libraries.
- Fixed issues: #4254, #3994, #3474.
Thread:
- Fixes for miscellaneous trac issues (#2501, #4341, #4363, #3760, #3761, #3611, #2955, #4071, #3195, #3097, #2874, #4316, #4317, #4322, #3244, #2747, #4305, #3195, #2704, #2293, #868, #2918, #4238, #3269, #3178, #3195).
- Fixes for other miscellaneous issues (remove warnings, support newer compilers, etc.)
TR1:
- Fixed VC10 support.
- std::tr1::result_of always uses the TR1 ResultOf protocol, even on compilers that support the C++0x decltype-based implementation.
Type Traits:
- Added support for rvalue references throughout the library, plus two new traits classes is_rvalue_reference and is_lvalue_reference. Fixes #4407 and #3804.
- Fixed ticket #3621.
uBLAS:
- New assignment operators to feed in vectors and matrices in many nice ways (#4034). Thank you Nasos
- New doxygen-based documentation
- Enable arithmetic operators (+,-,*,/) to work between ublas containers of std::complex and integral types (#3649). Thank you Neal
- Removed unused variables in functional.hpp (#4377). Thank you Marco
- New matrix_indirect and vector_indirect views to access elements with a matrix or vector of indices
Utility:
- Added a new template class, boost::initialized<T>, in order to fix #3472.
- New version of value_initialized<T> no longer calls memset when the compiler has implemented value-initialization completely (#3869).
- New template boost::tr1_result_of that implements the TR1 ResultOf protocol even if boost::result_of uses the C++0x decltype-based implementation.
Uuid:
- Define BOOST_UUID_NO_TYPE_TRAITS to remove the dependency on Boost.TypeTraits.
- Stream operator<< handles left, internal, and right manipulators.
- Added to_string, to_wstring to convert a uuid to a string.
- Fixed minor bugs in documentation.
Wave: See the Changelog for details.
Xpressive:
- Replace non-portable using declarations with typedefs in nested_results.
- Support user-defined assertions with placeholders for non-local variables.

Updated tools

Boostbook:
- Significantly faster.
- Improved syntax highlighter.
Quickbook:
- Use the cygwin 1.7 API for better path handling.
- Improved boostbook generation.
- Tweak the grammar to clean up some edge cases.
- For more detail see the change log.

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Leopard.
Linux:
- GCC 4.4 on 64-bit Suse.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1, 9.0 SP1 and 10.0.
- GCC 4.3.3, using Mingw.
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.

Boost's additional test compilers include:

Linux:
- Intel 10.1 on 32 bit Red Hat Enterprise Linux.
- Intel 10.1, 11.0, 11.1 on 64 bit Red Hat Enterprise Linux.
- GCC 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.5 on Red Hat Enterprise Linux.
- GCC, with C++0x extensions, 4.3.4, 4.4.3, 4.5 on Red Hat Enterprise Linux.
- GCC 4.4 on 64 bit Suse.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
- Clang from subversion (will be released with LLVM 2.8).
OS X:
- Intel C++ Compiler 10.1, 11.0, 11.1 on Leopard.
- GCC 4.0.1, 4.2.1 (Apple build).
- GCC 4.4
- GCC, with C++0x extensions, 4.4
- Clang from subversion (will be released with LLVM 2.8).
Windows:
- Visual C++ 7.1 SP, 8.0, 9.0 on 32-bit XP.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 on XP.
- Visual C++ 10.0 on 64-bit Windows 7.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.1 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.3.3, 4.5 on Mingw.
- GCC, with C++0x extensions, 4.5 on Mingw.
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.2, 64 bit.
- GCC 4.2.1 on FreeBSD 8.0, 32 bit.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Thanks to Marshall Clow for organizing the bug sprint and to everyone who took part.

Version 1.43.0

Thu 6 May 2010 12:00:00 GMT

New Libraries

Functional/factory: Function objects for dynamic and by-value construction, from Tobias Schwinger.
Functional/forward: Function object adapters to address the forwarding problem, from Tobias Schwinger.

Major Updates

Range: Boost.Range has undergone extensive updates that it include all of the features from the recently reviewed Boost.RangeEx, from Neil Groves.
- Range-based version of the full STL iterator based algorithms.
- Range adaptors which can be combined with range-based algorithms for unprecedented expressiveness and efficiency.
- New functions: irange, istream_range, join, combine.

Updated Libraries

Accumulators:
- Avoid premature template evaluation in operator overload return types.
Array:
- Added support for SunCC compiler.
- Added 'fill' member function.
- Changed exception code to use boost::throw_exception.
Asio:
- Improved performance.
- Reduced compile times.
- Reduced the size of generated code.
- Extended the guarantee that background threads don't call user code to all asynchronous operations (#3923).
- Changed to use edge-triggered epoll on Linux.
- Changed to use timerfd for dispatching timers on Linux, when available.
- Changed to use one-shot notifications with kqueue on Mac OS X and BSD platforms.
- Added a bitmask type ip::resolver_query_base::flags as per the TR2 proposal. This type prevents implicit conversion from int to flags, allowing the compiler to catch cases where users incorrectly pass a numeric port number as the service name.
- Added #define NOMINMAX for all Windows compilers. Users can define BOOST_ASIO_NO_NOMINMAX to suppress this definition (#3901).
- Fixed a bug where 0-byte asynchronous reads were incorrectly passing an error::eof result to the completion handler (#4023).
- Changed the io_control() member functions to always call ioctl on the underlying descriptor when modifying blocking mode (#3307).
- Changed the resolver implementation to longer require the typedefs InternetProtocol::resolver_query and InternetProtocol::resolver_iterator, as neither typedef is part of the documented InternetProtocol requirements. The corresponding typedefs in the ip::tcp, ip::udp and ip::icmp classes have been deprecated.
- Fixed out-of-band handling for reactors not based on select().
- Added new BOOST_ASIO_DISABLE_THREADS macro that allows Asio's threading support to be independently disabled.
- Minor documentation improvements.
Fusion:
- Added new macros for adapting or defining custom types. See the Changelog for details.
Iostreams:
- Minor fixes (#2505, #3839, #3953, #3723, #3969, #4135).
Multi-index Containers:
- Serialization of non default constructible values is now properly supported through user-provided facilities save_construct_data and load_construct_data. multi_index_container serialization class version has been bumped from 1 to 2.
Proto:
- Minor change in behavior: non-const expression self-assignment creates an assign node. See Proto's Release Notes for details.
- Minor change to recommended expression extension mechanism: use BOOST_PROTO_EXTENDS_USING_ASSIGN(). See Proto's Release Notes for details.
- Fix error in invocation of callable monomorphic function objects in Proto transforms.
- Fix misc const correctness issues, work around fusion bug.
- Add non-const function call overloads to proto terminals.
- Add a default constructor to proto::literal<>.
- Do not use deprecated config macros.
- Add proto::assert_matches() function and friends to <boost/proto/debug.hpp>.
- functional::make_expr<> and functional::unpack_expr<> return const-qualified rvalues.
- Add documentation for Expr and Domain concepts.
Random:
- Put the implementation of random_device in a compiled lib, and added Windows support.
- Rewrote the documentation using Quickbook/Doxygen/Boostbook and brought it up to date.
Spirit: Spirit V2.3, see the 'What's New' section for details.
Thread:
- Uses boost::throw_exception for all exceptions except thread_interrupted
- Added fix for issue 2742
- Optimizations to mutex locks and call_once
Unordered:
- erase_return_void is now quick_erase (#3966).
Uuid:
- Split generators into separate files.
- Fixed bug in basic_random_generator (#3971).
- Updated documentation.
Wave: See the Changelog for details.
Xpressive:
- Add missing include to <boost/xpressive/regex_error.hpp>.

Build System

When cross-compiling to GNU targets, static libraries are properly created. Previously, using such libraries resulted in Archive has no index error.
The naming of DLL and import libraries with gcc compiler on Windows, both mingw and cygwin, now matches default conventions of those environments. Previously, the naming scheme was the same as for other Windows compilers.

Updated Tools

Quickbook:
- Unicode escape characters.
- Support the UTF-8 byte order mark.
- Disallow [ in simple markup. Fixes some errors with mismatched punctuation.
- Add a command line flag (-D) to define macros at the command line.
- Improved post-processor output.
- Check that [section] and [endsect] tags are balanced in templates.

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Leopard.
Linux:
- GCC 4.4.1 on Ubuntu Linux.
- GCC 4.4 on 64-bit Suse.
Windows:
- Visual C++ 8.0 SP1 and 9.0 SP1 on Windows XP.
- GCC 4.3.3, using Mingw
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.

Boost's additional test compilers include:

Linux:
- Intel 10.1, 11.1 on 32 bit Red Hat Enterprise Linux.
- Intel 10.1, 11.0, 11.1 on 64 bit Red Hat Enterprise Linux.
- GCC 3.4.6, 4.2.4, 4.3.4, 4.4.3 on Red Hat Enterprise Linux.
- GCC 4.3.4, 4.4.3 with C++0x extensions on Red Hat Enterprise Linux.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
OS X:
- Intel C++ Compiler 10.1, 11.0, 11.1 on Leopard.
- GCC 4.0.1 on Intel Leopard.
- Clang from subversion.
Windows:
- Visual C++ 8,0, 9,0 on 32-bit XP.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 on XP.
- Visual C++ 10.0 on 64-bit Windows 7.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.1 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.3.3 on Mingw.
- GCC 4.4.3 on Mingw, with and without C++0x extensions.
- GCC 4.5 on Mingw.
AIX:
- IBM XL C/C++ Enterprise Edition, V10.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.2, 64 bit.
- GCC 4.2.1 on FreeBSD 8.0, 32 bit.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.42.0

Tue 2 Feb 2010 14:00:00 GMT

New Libraries

Uuid: A universally unique identifier, from Andy Tompkins.

Updated Libraries

Asio:
- Added a new HTTP Server 4 example illustrating the use of stackless coroutines with Asio.
- Changed handler allocation and invocation to use boost::addressof to get the address of handler objects, rather than applying operator& directly (#2977).
- Restricted MSVC buffer debugging workaround to 2008, as it causes a crash with 2010 beta 2 (#3796, #3822).
- Fixed a problem with the lifetime of handler memory, where Windows needs the OVERLAPPED structure to be valid until both the initiating function call has returned and the completion packet has been delivered.
- Don't block signals while performing system calls, but instead restart the calls if they are interrupted.
- Documented the guarantee made by strand objects with respect to order of handler invocation.
- Changed strands to use a pool of implementations, to make copying of strands cheaper.
- Ensured that kqueue support is enabled for BSD platforms (#3626).
- Added a boost_ prefix to the extern "C" thread entry point function (#3809).
- In getaddrinfo emulation, only check the socket type (SOCK_STREAM or SOCK_DGRAM) if a service name has been specified. This should allow the emulation to work with raw sockets.
- Added a workaround for some broken Windows firewalls that make a socket appear bound to 0.0.0.0 when it is in fact bound to 127.0.0.1.
- Applied a fix for reported excessive CPU usage under Solaris (#3670).
- Added some support for platforms that use older compilers such as g++ 2.95 (#3743).
Circular Buffer:
- Added methods erase_begin(size_type) and erase_end(size_type) with constant complexity for such types of stored elements which do not need an explicit destruction e.g. int or double.
- Similarly changed implementation of the clear() method and the destructor so their complexity is now constant for such types of stored elements which do not require an explicit destruction (the complexity for other types remains linear).
Fusion:
- The accumulator is the first argument to the functor of fusion::fold and fusion::accumulate (#2355).
- Added support for associative iterators and views (#3473).
Graph:
- Removed old interface to compressed_sparse_row_graph, making new interface the default.
Integer:
- Reverted Trunk to release branch state (i.e. a "known good state").
- Fixed issues: 653, 3084, 3177, 3180, 3568, 3657, 2134.
- Added long long support to boost::static_log2, boost::static_signed_min, boost::static_signed_max, boost::static_unsigned_minboost::static_unsigned_max, when available.
- The argument type and the result type of boost::static_signed_min etc are now typedef'd. Formerly, they were hardcoded as unsigned long and int respectively. Please, use the provided typedefs in new code (and update old code as soon as possible).
Iostreams:
- Fixed many outstanding issues. Thanks to Richard Smith for his work on this. (#3612, #3311, #2094, #3010, #2894, #3011, #3352, #3505).
- For more information see the library release notes.
Program.Options:
- Information about option name added to a few exception classes and various clean ups in exception classes (#3423).
- Description wordwrapping in presense of default parameters fixed (#2613).
- Empty value in configuration file is now permitted (#1537).
- Quotes are no longer stripped from string values (#850).
- Fix endless loop in case of long default arguments (#689).
- Fix compile warning caused by usage of boost::any (#2562).
- Fix memory bug in example/response_file.cpp (#3525).
- Most compilation warnings were fixed (#3608).
- Make column width for description text configurable. (#3703).
- Add general split function: split_unix() (#2561).
- Enable open config files from given file name (#3264).
- Additional flag for required options (#2982).
- Enable case insensitive style for command line (#3498).
PropertyMap:
- Removed old header files (directly in the boost/ directory); they were deprecated since 1.40, replaced by headers in boost/property_map/.
Proto:
- Fix const correctness issues with proto::flatten and friends (#3364).
- Accomodate recent change to fusion::fold, remove old support for Doxygen and pre-1.35 Fusion (#3553).
- In binary operations, when one operand has a user-specified domain and the other has the default domain, the user-specified domain trumps.
- Fix BOOST_PROTO_EXTENDS to work with elaborated types.
- Work around EDG compiler bug with function types and cv-qualification.
Regex:
- Added support for Functors rather than strings as format expressions.
- Improved error reporting when throwing exceptions to include better more relevant information.
- Improved performance and reduced stack usage of recursive expressions.
- Fixed tickets #2802, #3425, #3507, #3546, #3631, #3632, #3715, #3718, #3763, #3764
Spirit: Spirit V2.2, see the 'What's New' section for details.
Unordered:
- Support instantiating the containers with incomplete value types.
- Add erase_return_void as a temporary workaround for the current erase which can be inefficient because it has to find the next element to return an iterator (#3693).
- Add templated find overload for compatible keys.
- Improved codegear compatibility.
- Other minor changes, full details in the changelog.
Xpressive:
- match_results no longer relies on undefined behavior in std::list (#3278).
- Do NOT copy singular iterators (#3538).
- Eliminate gcc and darwin warnings (#3734).

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Leopard.
- GCC 4.0.1 on PowerPC Tiger.
Linux:
- GCC 4.4.1 on Ubuntu Linux.
- GCC 4.4 on Debian.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.
- Visual C++ 9.0 on Windows 2008, 64 bit.
- GCC 4.3.3, using Mingw
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.

Boost's additional test compilers include:

Linux:
- Intel 10.1 on Red Hat Enterprise Linux.
- Intel 10.1 on 64 bit Red Hat Enterprise Linux.
- Intel 11.0 on 32 bit Red Hat Enterprise Linux.
- Intel 11.0 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Linux Redhat 5.1 Server.
- Intel 11.1 on Suse Linux 64 bit.
- GCC 3.4.6, GCC 4.2.4, GCC 4.3.4 and GCC 4.4.2 on Red Hat Enterprise Linux.
- GCC 4.3.4 and GCC 4.4.2 with C++0x extensions on Red Hat Enterprise Linux.
- GCC 4.4.1 on 64 bit Linux.
- GCC 4.4.3 on Debian unstable.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
OS X:
- Intel C++ Compiler 10.1, 11.0, 11.1 on Leopard.
- GCC 4.0.1 on Intel Leopard.
- GCC 4.0.1 on PowerPC Tiger.
Windows:
- Visual C++ 7.1, 8,0, 9,0 on XP.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 beta 2.
- Visual C++ 10.0 on 32-bit Vista.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.1 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.4.1 on Mingw, with and without C++0x extensions.
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.0, 32 bit and 64 bit.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.41.0

Tue, 17 Nov 2009 17:00:00 GMT

New Libraries

Property Tree: A tree data structure especially suited to storing configuration data, from Marcin Kalicinski and Sebastian Redl.

Updated Libraries

DateTime:
- The default format for time durations is now "%-%O:%M:%S%F" instead of "%-%H:%M:%S%F" that was used previously. In order to retain the old behavior, the format string has to be specified explicitly during the time IO facet construction (#1861).
- Gregorian dates now use 32-bit integer type internally on 64-bit platforms (#3308).
- See the full changelog for more detail.
Filesystem:
- Bug fixes: (#3385). (#3528). (#3509).
Iostreams: Some old unreleased developments. There are still several open issues that should be fixed in the next version.
- Add a grep filter (#1627).
- Support archives with multiple members (#1896).
- Make tee work with input streams (#791).
- Improved filesystem interoperability.
- Several warnings fixed or suppressed (including #1618, #1875, #2779).
- Various other fixes (including #1580, #1671).
Math: Substantially improved the performance of the incomplete gamma function and it's inverse: this enhances the performance of the gamma, poisson, chi-squared and non-central chi-squared distributions.
Multi-index Containers: Maintenance fixes. Consult the library release notes for further information.
Proto:
- Clean up some MSVC warnings and errors in /Za (disable Microsoft extensions) mode.
- Fixes for c++0x mode on various compilers.
Python: Boost.Python now supports Python 3 (Haoyu Bai's Google Summer of Code project, mentored by Stefan Seefeld).
Regex: Added support for many Perl 5.10 syntax elements including named sub-expressions, branch resets and recursive regular expressions.
Spirit: This is the initial official release of the new Spirit V2.1, a completely new library for parsing, lexing, and output generation. Note: this release is not backwards compatible with earlier versions. Known issue: qi::symbol::find will match a symbol that starts with the string you're searching for. This will be fixed in the next version.
System:
- Bug fix: (#3559).
Thread:
- Support for futures, promises and packaged tasks added
- boost::thread_specific_ptr is now faster when there are lots of thread-specific objects
- Some Boost.Thread facilities are now header-only
Unordered: Major update:
- Replaced a lot of the macro based implementation with a cleaner template based implementation.
- Reduced memory use.
- Full details in the changelog.
Utility: A "const" issue of value_initialized is fixed: Its data() member function and its conversion operator are replaced by overloads for const and non-const access (#2548).
Wave: See the changelog for details.
Xpressive:
- Fix infinite loop with some uses of \Q...\E quotemeta (#3586).
- Eliminate unreachable code warnings on MSVC
- Clean up some MSVC warnings and errors in /Za ("disable Microsoft extensions") mode.
- Fixes for c++0x mode on various compilers.

Build System

A bug preventing "fat" 32-bit + 64-bit builds on OSX has been fixed.

Boost.CMake moved

The cmake version of boost has moved; the Boost.CMmake release will be separate and will lag the main release slightly, but will also be capable of producing patch releases as necessary.

More information on the Boost CMake wiki page.

Updated Tools

Quickbook 1.5: These changes require your document to use the [quickbook 1.5] tag:
- More intuitive syntax and variable lookup for template calls (#1174, #2034, #2036).
- Image attributes (#1157)
- Table Ids (#1194)
- Better handling of whitespace in section syntax. (#2712)

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Tiger and Leopard.
- GCC 4.0.1 on PowerPC Tiger.
Linux:
- GCC 4.4.1 on Ubuntu Linux.
- GCC 4.4 on Debian
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- Intel 10.1 on Red Hat Enterprise Linux.
- Intel 10.1 on 64-bit Red Hat Enterprise Linux.
- Intel 10.1 on Suse Linux on 64 bit Itanium.
- Intel 11.0 on 32 bit Red Hat Enterprise Linux.
- Intel 11.0 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Linux Redhat 5.1 Server.
- GCC 3.4.3, GCC 4.2.4, GCC 4.3.3 and GCC 4.4.1 on Red Hat Enterprise Linux.
- GCC 4.3.3 and GCC 4.4.1 with C++0x extensions on Red Hat Enterprise Linux.
- GCC 4.3.3 on 64-bit Redhat Server 5.1.
- GCC 4.3.3 on 64 bit Linux.
- GCC 4.3.4 on Debian unstable.
- GCC 4.3.2 on 64 bit Gentoo.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
- Sun 5.9 on Red Hat Enterprise Linux.
OS X:
- Intel C++ Compiler 11.1 on Leopard.
- Intel C++ Compiler 10.1, 11.0.
- GCC 4.0.1 on Intel Tiger.
- GCC 4.0.1 on PowerPC Tiger.
Windows:
- Visual C++ 7.1, 8,0, 9,0 on XP.
- Visual C++ 9.0 on 32-bit Vista.
- Visual C++ 9.0 on AMD 64-bit Vista.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 beta 1 with a patch for the program options lib.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.0 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.4.1 on Mingw, with and without C++0x extensions.
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.0.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.40.0

Thu, 27 Aug 2009 17:00:00 GMT

Update

Added missing notes for Graph and Property Map.

Boost.CMake

Boost.CMake is now distributed separately. The cmake build for boost is BROKEN in the tarballs above. See the Boost.CMake wiki page for pointers to working versions.

Updated Libraries

Accumulators:
- Works on GCC 4.4.
Asio:
- Added a new ping example to illustrate the use of ICMP sockets.
- Changed the buffered*_stream<> templates to treat 0-byte reads and writes as no-ops, to comply with the documented type requirements for SyncReadStream, AsyncReadStream, SyncWriteStream and AsyncWriteStream.
- Changed some instances of the throw keyword to boost::throw_exception() to allow Asio to be used when exception support is disabled. Note that the SSL wrappers still require exception support (#2754).
- Made Asio compatible with the OpenSSL 1.0 beta (#3256).
- Eliminated a redundant system call in the Solaris /dev/poll backend.
- Fixed a bug in resizing of the bucket array in the internal hash maps (#3095).
- Ensured correct propagation of the error code when a synchronous accept fails (#3216).
- Ensured correct propagation of the error code when a synchronous read or write on a Windows HANDLE fails.
- Fixed failures reported when _GLIBCXX_DEBUG is defined (#3098).
- Fixed custom memory allocation support for timers (#3107).
- Tidied up various warnings reported by g++ (#1341, #2618).
- Various documentation improvements, including more obvious hyperlinks to function overloads, header file information, examples for the handler type requirements, and adding enum values to the index (#3157, #2620).
Circular Buffer:
- Fixed bugs #2785, #3285.
Foreach:
- Workaround for conflict with Python headers (#3000).
Function:
- Optimize the use of small target objects.
- Make Boost.Function compile under BOOST_NO_EXCEPTIONS (#2499, #2494, #2469, #2466, #2900)
- Various minor fixes (#2642, #2847, #2929 #3012)
Fusion:
- Improved compile times for fusion::vector.
Graph:
- Merged in the Parallel Boost Graph Library, giving a full suite of graph algorithms and data structures for distributed-memory computers (such as clusters).
- Updates to the interface of the compressed sparse row graph, including constructors from unsorted edge lists.
- An implicit grid graph, saving memory over using the former generator.
- New algorithms: Dijkstra's single-source shortest path algorithm without a separate color map and an algorithm to find maximal common subgraphs between two graphs.
- Assorted bug fixes.
Hash:
- Automatically configure the float functions using template metaprogramming instead of trying to configure every possibility manually.
Interprocess:
- Windows shared memory is created in Shared Documents folder so that it can be shared between services and processes
- Fixed bugs #2967, #2973, #2992, #3138, #3166, #3205.
Intrusive:
- Code cleanup in tree_algorithms.hpp and avl_tree_algorithms.hpp
- Fixed bug #3164.
MPL:
- Added mpl::char_ and mpl::string for compile-time string manipulation, based on multichar literals (#2905).
- Updated MPL Reference Manual.
- Bug fixes.
Program.Options:
- Support for building with disabled exceptions (#2096).
- Unicode parser no longer drops original tokens (#2425).
- Fixed crash on user-inserted items in variables_map (#2782).
Property Map:
- Moved property map code into a separate directory, boost/property_map/. The old files exist and forward to the new ones; the previous files directly in boost/ will be removed in Boost 1.42.0.
- Moved distributed property maps to boost::graph::parallel namespace.
- Added a property map based on a boost::shared_array, providing a simpler interface.
Proto:
- PrimitiveTransforms have stricter conformance to ResultOf protocol. (Warning: some invalid code may break.)
- Add a sensible default for proto::_default's template parameter.
- Improved default evaluation strategy for pointers to members.
- GCC 3.4 portability fixes (#3021).
- Work around Visual C++'s non-std-compliant ciso646 macros.
Random:
- Made the constructors of all the generators call the copy constructor when passed a non-const reference.
- Changed seeding functions to accept any arithmetic type. As a side-effect, the exact signature of seed changed for some classes.
- Major bug fixes in uniform_int.
Serialization:
- Removed deprecated headers: boost/static_warning.hpp, boost/state_saver.hpp, boost/smart_cast.hpp, boost/pfto.hpp. Use the the equivalent headers in the boost/serialization/ directory instead (#3062).
- detail::archive_serializer_map should now be used instead of detail::archive_pointer_iserializer. For more details see the library release notes.
Unordered:
- Implement emplace for all compilers, not just ones with rvalue references and variadic templates (#1978).
- Create less buckets by default.
- Some minor tweaks for better compiler support (#2908, #3096, #3082).
Xpressive:
- Works on Visual C++ 10.0 (#3124).

Build System

The default naming of libraries in Unix-like environment now matches system conventions, and does not include various decorations. Naming of libraries on Cygwin was also fixed. Support for beta versions of Microsoft Visual Studio 10 was added. With gcc, 64-bit compilation no longer requires that target architecture be specified.

Updated Tools

Boostbook:
- Hide INTERNAL ONLY enums in doxygen documentation (#3242).
- Tweaked appearance of member classes/structs/unions in a class synopsis.
Quickbook:
- Support python code snippets (#3029).
- Add teletype source mode (#1202)

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Tiger and Leopard
- GCC 4.0.1 on PowerPC Tiger
Linux:
- GCC 4.3.3 on Ubuntu Linux.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- Intel 9.0 on Red Hat Enterprise Linux.
- Intel 10.0 on Red Hat Enterprise Linux.
- Intel 10.1 on 64-bit Linux Redhat 5.1 Server.
- Intel 10.1 on Suse Linux on 64 bit Itanium.
- Intel 11.0 on Red Hat Enterprise Linux.
- Intel 11.1 on Red Hat Enterprise Linux.
- GCC 3.4.3, GCC 4.0.1, GCC 4.2.4, GCC 4.3.3 and GCC 4.4.0 on Red Hat Enterprise Linux.
- GCC 4.3.3 and GCC 4.4.0 with C++0x extensions on Red Hat Enterprise Linux.
- GCC 4.1.1, 4.2.1 on 64-bit Red Hat Enterprise Linux.
- GCC 4.1.2 on Suse Linux on 64 bit Itanium.
- GCC 4.1.2 on 64-bit Redhat Server 5.1.
- GCC Open64 4.2.2 on Red Hat Enterprise Linux.
- GCC 4.3.4 on Debian unstable.
- QLogic PathScale(TM) Compiler Suite: Version 3.1 on Red Hat Enterprise Linux.
- GCC version 4.2.0 (PathScale 3.2 driver) on 64-bit Red Hat Enterprise Linux.
- Sun 5.9 on Red Hat Enterprise Linux.
OS X:
- Intel 10.1, 11.0 on Intel Leopard.
- Intel 10.1, 11.0 on Intel Tiger.
- GCC 4.0.1, 4.2.1 on Intel Leopard.
- GCC 4.0.1 on Intel Tiger.
- GCC 4.0.1 on PowerPC Tiger.
Windows:
- Visual C++ 7.1 on XP.
- Visual C++ 9.0 on XP.
- Visual C++ 9.0 on Vista.
- Visual C++ 9.0 on Vista 64-bit.
- Visual C++ 9.0, using STLport 5.2, on XP and Windows Mobile 5.0.
- Visual C++ 10.0 beta.
- Borland 5.9.3, 6.1.0, 6.1.3.
- Borland C++ Builder 2007 and 2009.
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 64-bit.
- GCC 4.3.3 and 4.4.0, on Mingw with C++0x features.
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40.
Solaris:
- Sun C++ 5.7, 5.8, 5.9 on Solaris 5.10.
- GCC 3.4.6 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.39.0

Sat, 02 May 2009 12:00:00 GMT

New Libraries

Signals2: Managed signals & slots callback implementation (thread-safe version 2), from Frank Mori Hess.

Updated Libraries

Asio:
- Implement automatic resizing of the bucket array in the internal hash maps. This is to improve performance for very large numbers of asynchronous operations and also to reduce memory usage for very small numbers. A new macro BOOST_ASIO_HASH_MAP_BUCKETS may be used to tweak the sizes used for the bucket arrays.
- Add performance optimisation for the Windows IOCP backend for when no timers are used.
- Prevent locale settings from affecting formatting of TCP and UDP endpoints (#2682).
- Fix a memory leak that occurred when an asynchronous SSL operation's completion handler threw an exception (#2910).
- Fix the implementation of io_control() so that it adheres to the documented type requirements for IoControlCommand (#2820).
- Fix incompatibility between Asio and ncurses.h (#2156).
- On Windows, specifically handle the case when an overlapped ReadFile call fails with ERROR_MORE_DATA. This enables a hack where a windows::stream_handle can be used with a message-oriented named pipe (#2936).
- Fix system call wrappers to always clear the error on success, as POSIX allows successful system calls to modify errno (#2953).
- Don't include termios.h if BOOST_ASIO_DISABLE_SERIAL_PORT is defined (#2917).
- Cleaned up some more MSVC level 4 warnings (#2828).
- Various documentation fixes (#2871).
Flyweight:
- The refcounted component was not thread-safe due to an incorrect implementation and could deadlock under heavy usage conditions. This problem has been corrected.
Foreach:
- Eliminate shadow warnings on gcc for nested FOREACH loops
- Portability fix for Intel-Win toolset
Hash:
- Remove deprecated headers for hashing containers. Everything that was in them is included in <functional/hash.hpp> (#2412).
- Other minor changes, full details in the library change log.
Interprocess:
- Increased portability and bug fixes. Full details in the library change log.
Intrusive:
- Optimizations and bug fixes. Full details in the library change log.
Program.Options:
- Multitoken options fixed (#469).
Proto:
- Work around incompatibility with standard Linux header.
- Add proto::noinvoke<> to block metafunction invocation in object transforms.
PtrContainer:
- Bug fixes from Trac applied.
Range:
- Bug fixes from Trac applied.
Unordered:
- Fixed regression in 1.38 that prevented unordered from using more than about 1.5 million buckets (#2975).
- Minor implementation changes, including #2756. Full details in the library change log.
Xpressive:
- Work around for gcc optimization problem resulting in pure virtual function call runtime error (#2655).

Updated Tools

Boostbook:
- Improved PDF generation.
- Preliminary HTMLHelp support.
- Add default path for callout images.
- Include data members' <purpose> in the class synopsis.
- Fix bug where a function's <purpose> wasn't displayed if it was just plain text.
- Support the alt tag in <headername> and <macroname>. Use this if the header or macro name is different to the contents of the tag (#1977).
- Support links relative to the boost root in <ulink> tags, using a custom url, see the linking documentation for details (#1166).
- Avoid generating filenames that only differ in case for function, method and macro documentation.
- Run the docbook chunker quietly, unless boostbook.verbose is set. This parameter might be used in other places in future releases.
- Make the 1.1 DTD available.
- Fill in some missing reference documentation (partially fixes #2153).
- Changes to doxygen integration:
  - Support \throw.
  - Support global variables and enums.
  - Better support for documentation written in function and method bodies.
  - Workaround a problem with doxygen 1.5.8's xml output (#2937).
Quickbook:
- Return an error code and error count if there are any errors (#1399).
- Support both windows and cygwin paths at the compile line when compiled with cygwin.
- Fix some issues with C++ and Python code:
  - Fail gracefully for a mismatched ''.
  - Warn if any unexpected character are encountered and write them out properly (#1170).
  - Fix a bug for hex encoded characters in strings (#2860).
- Improved testing, including tests for expected failures.
- Generate valid document info for document types other than library (#2711):
  - Remove library specific attributes.
  - Put title before info block.
- Fix a bug when calling templates.
- Less warnings when built using gcc.
- Small documentation improvements (#1213, #2701).
- Fix a bug with xinclude pages when outdir is the current directory (#2921).

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Tiger and Leopard
- GCC 4.0.1 on PowerPC Tiger
Linux:
- GCC 4.3.2 on Ubuntu Linux.
- GCC 4.3.3 on Debian "unstable".
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- Intel 9.0 on Red Hat Enterprise Linux
- Intel 10.0 on Red Hat Enterprise Linux
- Intel 10.1 on 64-bit Linux Redhat 5.1 Server.
- Intel 10.1 on Suse Linux on 64 bit Itanium
- Intel 11.0 on Red Hat Enterprise Linux
- GCC 4.1.1, 4.2.1 on 64-bit Red Hat Enterprise Linux
- GCC 4.1.2 on 64-bit Redhat Server 5.1
- GCC 4.1.2 on Suse Linux on 64 bit Itanium
- GCC 3.4.3, GCC 4.0.1, GCC 4.2.4 and GCC 4.3.2 on Red Hat Enterprise Linux
- GCC 4.3.2 with C++0x extensions on Red Hat Enterprise Linux
- GCC 4.2.1 on OpenSuSE Linux
- QLogic PathScale(TM) Compiler Suite: Version 3.1 on Red Hat Enterprise Linux
- GNU gcc version 4.2.0 (PathScale 3.2 driver) on 64-bit Red Hat Enterprise Linux
- Sun 5.9 on Red Hat Enterprise Linux
OS X:
- Intel 9.1, 10.1 on Tiger
- Intel 10.1, 11.0 on Leopard
- GCC 4.2.1 on Leopard
Windows:
- Visual C++ 9.0 on Vista.
- Visual C++ 9.0, using STLport 5.2, on XP and Windows Mobile 5.0.
- Borland 5.9.3
- Borland 6.1.0
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on XP 32-bit.
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on Vista 64-bit. (TODO: not recently)
- GCC 4.3.3, on Mingw
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
NetBSD:
- GCC 4.1.2 on NetBSD 4.0/i386 and NetBSD 4.0/amd64.
Solaris:
- Sun C++ 5.7, 5.8, 5.9 on Solaris 5.10
- GCC 3.4.6 on Solaris 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.38.0

Sun, 08 Feb 2009 12:00:00 GMT

New Libraries

Flyweight:
- Design pattern to manage large quantities of highly redundant objects, from Joaquín M López Muñoz.
ScopeExit:
- Execute arbitrary code at scope exit, from Alexander Nasonov.
Swap:
- Enhanced generic swap function, from Joseph Gauterin.

Updated Libraries

Accumulators:
- Add rolling_sum, rolling_count and rolling_mean accumulators.
Any:
- Use a by-value argument for operator= (#2311).
Asio:
- Improved compatibility with some Windows firewall software.
- Ensured arguments to windows::overlapped_ptr::complete() are correctly passed to the completion handler (#2614).
- Fixed a link problem and multicast failure on QNX (#2504, #2530).
- Fixed a compile error in SSL support on MinGW / g++ 3.4.5.
- Drop back to using a pipe for notification if eventfd is not available at runtime on Linux (#2683).
- Various minor bug and documentation fixes (#2534, #2541, #2607, #2617, #2619)
Config:
- Add new macros BOOST_NO_STD_UNORDERED and BOOST_NO_INITIALIZER_LISTS.
- Added Codegear compiler support.
- Added Dragonfly to the BSD family of configs.
- Updated MSVC's binary ABI settings to match compiler default when doing 64-bit builds.
- Recognise latest compilers from MS and Intel.
Date_Time:
- Added support for formatting and reading time durations longer than 24 hours with new formatter: %0.
- Removed the testfrmwk.hpp file from the public include directory.
- Fixed several bugs and compile errors.
- For full details see the change history
Exception:
- Improved and more customizable diagnostic_information output.
Filesystem:
- Fix native(name) test failures on POSIX-like systems.
- Several bugfixes (#2543, #2224, #2531, #1840, #2542).
Graph:
- Added a new algorithms for Travelling Salesman Problem approximation (metric_tsp_approx) and resource-constrained Shortest Paths (r_c_shortest_paths).
- Support for named vertices in adjacency_list.
- A number of bugfixes ( #416, #1622, #1700, #2209, #2392, #2460, and #2550)
Hash:
- boost/functional/detail/container_fwd.hpp has been moved to boost/detail/container_fwd.hpp. The current location is deprecated.
- For more detail, see the library changelog.
Interprocess:
- Updated documentation to show rvalue-references functions instead of emulation functions.
- More non-copyable classes are now movable.
- Move-constructor and assignments now leave moved object in default-constructed state instead of just swapping contents.
- Several bugfixes (#2391, #2431, #1390, #2570, #2528).
Intrusive:
- New treap-based containers: treap, treap_set, treap_multiset.
- Corrected compilation bug for Windows-based 64 bit compilers.
- Corrected exception-safety bugs in container constructors.
- Updated documentation to show rvalue-references functions instead of emulation functions.
Lexical Cast:
- Changed to work without RTTI when BOOST_NO_TYPEID is defined (#1220).
Math:
- Added Johan Råde's optimised floating point classification routines.
- Fixed code so that it compiles in GCC's -pedantic mode (bug report #1451).
Multi-index Containers: Some redundant type definitions have been deprecated. Consult the library release notes for further information.
Proto:
- Fix problem with SFINAE of binary operators (Bug 2407).
- Fix proto::call transform for callable transforms with >3 arguments.
- result_of::value changed behavior for array-by-value terminals.
- unpack_expr requires only Forward Sequences rather than Random Access Sequences.
- Deprecate legacy undocumented BOOST_PROTO_DEFINE_(VARARG_)FUNCTION_TEMPLATE macros.
- Add BOOST_PROTO_REPEAT and BOOST_PROTO_LOCAL_ITERATE macros to help with repetitive code generation
- Support for nullary expressions with tag types other than proto::tag::terminal
- Allow 0- and 1-argument variants of proto::or_ and proto::and_
Regex:
- Breaking change: empty expressions, and empty alternatives are now allowed when using the Perl regular expression syntax. This change has been added for Perl compatibility, when the new syntax_option_type no_empty_expressions is set then the old behaviour is preserved and empty expressions are prohibited. This is issue #1081.
- Added support for Perl style ${n} expressions in format strings (issue #2556).
- Added support for accessing the location of sub-expressions within the regular expression string (issue #2269).
- Fixed compiler compatibility issues #2244, #2514, and #2458.
Thread:
- No longer catches unhandled exceptions in threads as this debuggers couldn't identify the cause of unhandled exceptions in threads. An unhandled exception will still cause the application to terminate.
TR1:
- Added support for the TR1 math functions and the unordered containers.
Type Traits:
- Added support for Codegear intrinsics.
- Minor tweaks to warning suppression and alignment_of code.
Unordered:
- Use boost::swap.
- Use a larger prime number list for selecting the number of buckets.
- Use aligned storage to store the types.
- Add support for C++0x initializer lists where they're available.
- For more detail, see the library changelog.
Xpressive:
- basic_regex gets nested syntax_option_flags and value_type typedef, for compatibility with std::basic_regex
- Ported to Proto v4; Proto v2 at boost/xpressive/proto has been removed.
- regex_error inherits from boost::exception

Other Changes

Experimental support for building Boost with CMake has been introduced in this version. For more details see the wiki, Discussion is taking place on the Boost-cmake mailing list.
Fixed subversion properties for several files. Most notably, unix shell scripts should always have unix line endings, even in the windows packages.

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel OS X 10.4.10, 10.5.2
- GCC 4.0.1 on PowerPC OS X 10.4.9
Linux:
- GCC 4.3.2 on Ubuntu Linux.
- GCC 4.3.3 on Debian "unstable".
HP-UX:
- GCC 4.2.1 on HP-UX 64-bit.
- HP C/aC++ B3910B A.06.17 on HP-UX 64-bit.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- GCC 4.1.1, 4.2.1 on 64-bit Red Hat Enterprise Linux
- GCC 4.1.2 on 64-bit Redhat Server 5.1
- GCC 3.4.3, GCC 4.0.1, GCC 4.2.4 and GCC 4.3.2 on Red Hat Enterprise Linux
- GCC 4.3.2 with C++0x extensions
- GCC 4.2.1 on OpenSuSE Linux
- pgCC 8.0-0a 64-bit target on Red Hat Enterprise Linux
- QLogic PathScale(TM) Compiler Suite: Version 3.1 on Red Hat Enterprise Linux
OS X:
- Intel 9.1, 10.0 on OS X 10.4.10
- Intel 10.1, 11.0 on OS X 10.5.2
Windows:
- Visual C++ 9.0 on Vista EE 64-bit.
- Visual C++ 9.0 express on Vista 32-bit.
- Visual C++ 9.0 on XP 32-bit.
- Visual C++ 8.0, using STLport, on XP and Windows Mobile 5.0
- Visual C++ 7.1, using STLport, on XP
- Borland 5.9.3
- Borland 6.1.0
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on XP 32-bit.
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on Vista 64-bit.
- Comeau 4.3.10.1 beta 2, with a Visual C++ 9.0 backend.
- GCC 3.4.4, on Cygwin
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.
NetBSD:
- GCC 4.1.2 on NetBSD 4.0/i386 and NetBSD 4.0/amd64.
QNX:
- QNX Software Development Platform 6.4.0 x86
Solaris:
- Sun C++ 5.7, 5.8, 5.9 on Solaris 5.10
- GCC 3.4.6 on Solaris 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release. Thanks to Vicente Botet for helping compile these release notes.

Version 1.37.0

Mon, 03 Nov 2008 12:00:00 GMT

New Libraries

Proto:
- Expression template library and compiler construction toolkit for domain-specific embedded languages, from Eric Niebler.

Updated Libraries

Asio:
- Enhanced CompletionCondition concept with the signature size_t CompletionCondition(error_code ec, size_t total), where the return value indicates the maximum number of bytes to be transferred on the next read or write operation. (The old CompletionCondition signature is still supported for backwards compatibility).
- New windows::overlapped_ptr class to allow arbitrary overlapped I/O functions (such as TransmitFile) to be used with Asio.
- On recent versions of Linux, an eventfd descriptor is now used (rather than a pipe) to interrupt a blocked select/epoll reactor.
- Added const overloads of lowest_layer().
- Synchronous read, write, accept and connect operations are now thread safe (meaning that it is now permitted to perform concurrent synchronous operations on an individual socket, if supported by the OS).
- Reactor-based io_service implementations now use lazy initialisation to reduce the memory usage of an io_service object used only as a message queue.
Circular Buffer:
- Added new methods is_linearized() and rotate(const_iterator).
- Minor bug fixes and documentation updates.
Dynamic Bitset:
- Constructor "do the right thing" dispatch, a la standard sequence containers (follows the proposed resolution of library issue 438, currently in the C++0x working paper).
- Improvements to documentation, code examples and implementation.
Exception:
- Support for non-RTTI builds.
- Optimizations.
- A new macro BOOST_THROW_EXCEPTION which can be used instead of boost::throw_exception when throwing, to automatically record information about the location of the throw in the exception object.
Hash:
- Minor bug fix (ticket 2264).
Interprocess:
- Added placement insertion (emplace(), emplace_back()...) methods to containers.
- Containers can be used now in recursive types.
- Minor bug fixes.
Intrusive:
- Intrusive now takes advantage of compilers with variadic templates.
- clone_from functions now copy predicates and hash functions of associative containers.
- Added incremental hashing to unordered containers via incremental<> option.
- Minor bug fixes.
Math.Special Functions: Improved accuracy and testing of the inverse hypergeometric functions.
Type Traits: Added better support for the Codegear compiler.
Unordered:
- Rename overload of emplace with hint, to emplace_hint as specified in n2691.
- Provide forwarding headers at <boost/unordered/unordered_map_fwd.hpp> and <boost/unordered/unordered_set_fwd.hpp>.
- Move all of the implementation inside the boost/unordered directory.

Compilers Tested

Boost's primary test compilers are:

GCC 4.01 on Mac OS X 10.4.10 with both Intel and Power PC
GCC 4.2.4 on Ubuntu Linux 8.10
GCC 4.3.2 on Debian Sid
GCC 4.2.1 on HP-UX Integrity
HP C/aC++ B3910B A.06.17 on HP-UX 64-bit
Visual C++ 9.0 SP1, 8.0, and 7.1 SP1, all on Windows XP

Boost's additional test compilers include:

GCC 4.1.2 on NetBSD
HP aCC on OS: HP-UX B.11.31 U ia64 and HP-UX B.11.31 9000/800 RISC
IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
Intel 9.1, 10.0, and 10.1, on Mac OS X 10.4.10
Compaq C++ V7.1-006 for Compaq Tru64 Unix on an OSF1 V5.1 platform.
Sun C++ 5.7, 5.8, 5.9 and GCC 3.4.6 on Sun Solaris 5.10.
On Linux:
- GCC 3.4.3, 4.0.1, 4.2.1, 4.2.4, 4.3.2.
- GCC 4.3.2 with C++0x extensions.
- GCC 4.1.1, 4.2.1 on 64 bit linux.
- Intel C++ 8.1, 9.0, 9.1 and 10.0
- QLogic PathScale(TM) Compiler Suite: Version 3.1
- Sun Compiler 5.9, 5.10 with stdcxx
On Windows:
- Several testers using Visual C++ 7.1, 8.0, 9.0 and 10.0
- Visual C++ 7.1 with Apache C++ Standard Library 4.2.x branch.
- Visual C++ 8.0 with STLport 5.1
- Visual C++ 8.0 with STLport 5.1 cross-compiling for Windows Mobile 5.0 Pocket PC SDK (ARMV4I).
- Intel 10.1, with Visual C++ 9 backend.
- Borland 5.9.3 and 6.10.0
- 64 bit Intel 10.1, with Visual C++ 9 backend.
- 64 bit Visual C++ 9.0.
- 64-bit Visual C++ 9.0 with Apache C++ Standard Library 4.2.x branch.
- Comeau C++ 4.3.10.1 beta 2, with Visual C++ 9 backend.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.36.0

Thu, 14 Aug 2008 12:00:00 GMT

New Libraries

Accumulators: Framework for incremental calculation, and collection of statistical accumulators, from Eric Niebler.
Exception: A library for transporting of arbitrary data in exception objects, and transporting of exceptions between threads, from Emil Dotchevski.
Units: Zero-overhead dimensional analysis and unit/quantity manipulation and conversion, from Matthias Schabel and Steven Watanabe
Unordered: Unordered associative containers, from Daniel James.

Updated Libraries

Asio:
- Added support for serial ports.
- Added support for UNIX domain sockets.
- Added support for raw sockets and ICMP.
- Added wrappers for POSIX stream-oriented file descriptors (excluding regular files).
- Added wrappers for Windows stream-oriented HANDLEs such as named pipes (requires HANDLEs that work with I/O completion ports).
- Added wrappers for Windows random-access HANDLEs such as files (requires HANDLEs that work with I/O completion ports).
- Added support for reactor-style operations (i.e. they report readiness but perform no I/O) using a new null_buffers type.
- Added an iterator type for bytewise traversal of buffer sequences.
- Added new read_until() and async_read_until() overloads that take a user-defined function object for locating message boundaries.
- Added an experimental two-lock queue (enabled by defining BOOST_ASIO_ENABLE_TWO_LOCK_QUEUE) that may provide better io_service scalability across many processors.
- Various fixes, performance improvements, and more complete coverage of the custom memory allocation support.
Assign: list_of() (and its variants) now has overloaded comparison operators. This allows you to write test code such as BOOST_CHECK_EQUAL( my_container, list_of(2)(3)(4)(5) );.
Circular Buffer:
- Default constructor now doesn't allocate memory, and sets the capacity of the buffer to 0
Foreach: BOOST_FOREACH macro for easily iterating over the elements of a sequence, from Eric Niebler.
- New BOOST_REVERSE_FOREACH macro for iterating over a sequence in reverse.
Function:
- Improved allocator support, from Emil Dotchevski.
Hash: Minor updates and fixes, for more info see the change log.
Interprocess:
- Added anonymous shared memory for UNIX systems.
- Fixed missing move semantics on managed memory classes.
- Added copy_on_write and open_read_only options for shared memory and mapped file managed classes.
- shared_ptr is movable and supports aliasing.
Intrusive:
- Added linear<> and cache_last<> options to singly linked lists.
- Added optimize_multikey<> option to unordered container hooks.
- Optimized unordered containers when store_hash option is used in the hook.
- Implementation changed to avoid explicit use of try-catch blocks and be compilable with exceptions disabled.
Math:
- Added new non-central Chi-Square, Beta, F and T distributions.
- Added Exponential Integral and Zeta special functions.
- Added Rounding, Truncation, and Unit-in-the-last-place functions.
- Added support for compile time powers of a runtime base.
- Added a few SSE2 based optimisations for the Lanczos approximations.
MPI:
- Added support for non-blocking operations in Python, from Andreas Klöckner.
- Added support for graph topologies.
Multi-index Containers: Minor additions and maintenance fixes. Consult the library release notes for further information.
PtrContainer: Support for a few more containers, and addition of insert iterators. For details see upgrading details.
Spirit: Integrated the "Classic" Spirit V1.8.x code base with Spirit V2, "The New Generation". See Change Log.
Thread:
- New generic lock and try_lock functions for locking multiple mutexes at once.
- Rvalue reference support for move semantics where the compilers supports it.
- A few bugs fixed and missing functions added (including the serious win32 condition variable bug).
- scoped_try_lock types are now backwards-compatible with Boost 1.34.0 and previous releases.
- Support for passing function arguments to the thread function by supplying additional arguments to the thread constructor.
- Backwards-compatibility overloads added for timed_lock and timed_wait functions to allow use of xtime for timeouts.
Wave:
- Wave V2.0 is a new major release introducing some breaking API changes, preventing it to be used with Boost versions earlier than V1.36.0. Mainly, the API and hook interface have been streamlined for more consistency.
- Fixed a couple of bugs, improved regression test system to include testing of the preporcessing hooks interface (for details see: Changelog).
Xpressive: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler.
- skip() for specifying which parts of the input sequence to ignore when matching it against a regex.
- regex_replace() accepts formatter objects and formatter expressions in addition to format strings.
- Range-based regex_replace() algorithm.
- Fix crash when semantic actions are placed in look-aheads, look-behinds or independent sub-expressions.

Compilers Tested

Boost's primary test compilers are:

GCC 4.01 on Mac OS X 10.4.10 with both Intel and Power PC
GCC 4.2.3 on Ubuntu Linux 8.04.1
HP C/aC++ B3910B A.06.17 on HP-UX 64-bit
Visual C++ 9.0 SP1 beta, 8.0 SP1, and 7.1, all on Windows XP SP-2

Boost's additional test compilers include:

GCC 4.2.1 on FreeBSD-7
GCC 4.1.2 on NetBSD
HP aCC on OS: HP-UX B.11.31 U ia64 and HP-UX B.11.31 9000/800 RISC
IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
Intel 9.1, 10.0, and 10.1, on Mac OS X 10.4.1
Compaq C++ V7.1-006 for Compaq Tru64 Unix on an OSF1 V5.1 platform.
Sun C++ 5.7, 5.8, 5.9 and GCC 3.4.6 on Sun Solaris 5.10.
On Linux:
- GCC 3.4.3, 4.0.1, 4.2.1, 4.3.0.
- GCC 4.3.0 with C++0x extensions.
- GCC 3.4.6, 4.1.1, 4.2.1 on 64 bit linux.
- Intel C++ 8.1, 9.0 and 9.1.
- QLogic PathScale(TM) Compiler Suite: Version 3.1
- pgCC 7.2-3 64-bit target on x86-64 Linux
On Windows:
- Intel 10.1, with Visual C++ 9 backend.
- Lots of tests on Visual C++ 7.1, 8.0, 9.0
- Visual C++ 7.1 with Apache C++ Standard Library 4.2.x branch.
- Visual C++ 8.0 with STLport 5.1
- Visual C++ 8.0 with STLport 5.1 cross-compiling for Windows Mobile 5.0 Pocket PC SDK (ARMV4I).
- Borland 5.6.4, 5.8.2, 5.9.3
- 64 bit Intel 10.1, with Visual C++ 9 backend.
- 64 bit Visual C++ 9.
- Comeau C++ 4.3.10.1 beta 2, with Visual C++ 9 backend.

Acknowledgements

Beman Dawes, Rene Rivera, and Daniel James managed this release.

Version 1.35.0

Sat, 29 Mar 2008 12:00:00 GMT

New Libraries

Asio: Portable networking, including sockets, timers, hostname resolution and socket iostreams, from Chris Kohlhoff.
Bimap: Boost.Bimap is a bidirectional maps library for C++. With Boost.Bimap you can create associative containers in which both types can be used as key, from Matias Capeletto.
Circular Buffer: STL compliant container also known as ring or cyclic buffer, from Jan Gaspar.
Function Types: Boost.FunctionTypes provides functionality to classify, decompose and synthesize function, function pointer, function reference and pointer to member types. From Tobias Schwinger.
Fusion: Library for working with tuples, including various containers, algorithms, etc. From Joel de Guzman, Dan Marsden and Tobias Schwinger.
GIL: Generic Image Library, from Lubomir Bourdev and Hailin Jin.
Interprocess: Shared memory, memory mapped files, process-shared mutexes, condition variables, containers and allocators, from Ion Gaztañaga.
Intrusive: Intrusive containers and algorithms, from Ion Gaztañaga.
Math/Special Functions: A wide selection of mathematical special functions from John Maddock, Paul Bristow, Hubert Holin and Xiaogang Zhang.
Math/Statistical Distributions: A wide selection of univariate statistical distributions and functions that operate on them from John Maddock and Paul Bristow
MPI: Message Passing Interface library, for use in distributed-memory parallel application programming, from Douglas Gregor and Matthias Troyer.
System: Operating system support, including the diagnostics support that will be part of the C++0x standard library, from Beman Dawes.

Updated Libraries

Graph: Generic graph components and algorithms. Highlights:
- kolmogorov_max_flow, from Stephan Diederich as part of the 2006 Google Summer of Code.
- read_dimacs_max_flow and write_dimacs_max_flow for max-flow problems, from Stephan Diederich.
- read_graphml and write_graphml for GraphML input/output, from Tiago de Paula Peixoto.
- minimum_cycle_ratio and maximum_cycle_ratio, from Dmitry Bufistov and Andrey Parfenov.
- boyer_myrvold_planarity_test, along with a suite of algorithms for planar graphs, from Aaron Windsor.
- LEDA Adaptor improvements, from Jens Müller.
Hash: A TR1 hash function object, from Daniel James. Highlights:
- Support for long long, std::complex.
- Improved the algorithm for hashing floating point numbers.
- A few bug and warning fixes.
Iostreams: Framework for defining streams, stream buffers and i/o filters, from Jonathan Turkanis. Highlights:
- Clarified the semantics of close(). This fixes several bugs but will break some existing code. See Release Notes for details.
- Numerous other bug fixes and optimizations.
Multi Array:
- Added "dimensionality" compile-time constante to the MultiArray concept.
- For greater control over error situations, uses of C++ assert have been replaced with BOOST_ASSERT.
- Fixed a bug with simultaneous resizing and reindexing.
Multi-index Containers:
- New global_fun predefined key extractor.
- Added iterator_to facility.
- Included support for non-standard allocators such as those of Boost.Interprocess, which makes multi_index_containers placeable in shared memory.
- New versions of modify and modify_key with rollback, as described in the tutorial.
- A number of optimizations and minor improvements have also been included. For a complete list of changes, see the library release notes.
Serialization: Boost.Serialization has been updated with optimizations for dense arrays.
Thread:
- The Thread library has been updated to be more in line with the C++0x working draft.
- Instances of boost::thread and of the various lock types are now movable.
- Threads can be interrupted at interruption points.
- Condition variables can now be used with any type that implements the Lockable concept, through the use of boost::condition_variable_any (boost::condition is a typedef to boost::condition_variable_any, provided for backwards compatibility). boost::condition_variable is provided as an optimization, and will only work with boost::unique_lock<boost::mutex> (boost::mutex::scoped_lock).
- Thread IDs are separated from boost::thread, so a thread can obtain it's own ID (using boost::this_thread::get_id()), and IDs can be used as keys in associative containers, as they have the full set of comparison operators.
- Timeouts are now implemented using the Boost DateTime library, through a typedef boost::system_time for absolute timeouts, and with support for relative timeouts in many cases. boost::xtime is supported for backwards compatibility only.
- Locks are implemented as publicly accessible templates boost::lock_guard, boost::unique_lock, boost::shared_lock, and boost::upgrade_lock, which are templated on the type of the mutex. The Lockable concept has been extended to include publicly available lock() and unlock() member functions, which are used by the lock types.
- boost::try_mutex has been removed, and the functionality subsumed into boost::mutex. boost::try_mutex is left as a typedef, but is no longer a separate class.
- boost::recursive_try_mutex has been removed, and the functionality subsumed into boost::recursive_mutex. boost::recursive_try_mutex is left as a typedef, but is no longer a separate class.
- boost::detail::thread::lock_ops has been removed. Code that relies on the lock_ops implementation detail will no longer work, as this has been removed, as it is no longer necessary now that mutex types now have public lock() and unlock() member functions.
- scoped_lock constructors with a second parameter of type bool are no longer provided. With previous boost releases, boost::mutex::scoped_lock some_lock(some_mutex,false); could be used to create a lock object that was associated with a mutex, but did not lock it on construction. This facility has now been replaced with the constructor that takes a boost::defer_lock_type as the second parameter: boost::mutex::scoped_lock some_lock(some_mutex,boost::defer_lock);
- The broken boost::read_write_mutex has been replaced with boost::shared_mutex.
Wave: Standards conformant implementation of the mandated C99/C++ preprocessor functionality packed behind an easy to use iterator interface, from Hartmut Kaiser. Highlights:
- Added the possibility to continue the preprocessing after an error occured.
- Added the macro introspection API to the wave::context object.
- Added threading support to the library.
- Improved the overall performance by upto 30%.
- Changed and unified preprocessor hook interface (this is an interface breaking change!), added several new preprocessor hook functions.
- Added serialization support.
- Added new examples (for instance: Hannibal - a partial C++ parser, by Danny Havenith).
- Added a new lexical analyzer based on Ben Hansons Lexertl library.
- Fixed a large number of other bugs and problems.
Xpressive: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler. Highlights:
- Added semantic actions to static regexes. A semantic action is code that executes when part of a regular expression matches.
- Added custom assertions to static regexes. A custom assertion is a Boolean predicate that can participate in the regex match.
- Added named regexes for embedding a static or dynamic regex into a dynamic regex. This can be used to create dynamic regex grammars.
- Added named captures to dynamic regexes, like Perl.

Supported Compilers

The following compilers are officially supported in this release:

HP aC++ A.06.14 on HP-UX
Darwin GCC 4.01.
GNU GCC up to version 4.2.1, on Linux and Solaris.
Intel C++ 9.1 on Linux.
Intel C++ 10.1 on Windows.
Microsoft Visual C++ 7.1 and 8 on Windows (Visual Sudio .NET 2003 and 2005).

In addition the following compilers should be well supported, but weren't part of our release criteria for 1.35:

IBM Visual Age 9.0 on AIX.
Intel C++ 10 and later on Linux.
GNU GCC 4.3 and later on Linux and Solaris.
Microsoft Visual C++ 9 (Visual Studio .NET 2008).

Acknowledgements

Beman Dawes managed this release.

Version 1.34.1

Tue, 24 Jul 2007 12:00:00 GMT

This is a bug fix release addressing many problems with the 1.34.0 release. It is a recommended upgrade for all users of Boost 1.34.0. For a complete list of fixes see Boost Trac.

Supported Compilers

New in this release is improved support for the IBM XL C/C++ compiler.

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. New in this release The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

Apple GCC 4.0.1 on Mac OS X.
Borland C++ 5.8.2 on Windows.
GNU C++
- 3.2.x., 3.3.x, 3.4.x, 4.0.x, 4.1.x on Linux
- 4.1.x on Solaris
- 3.4.x on Windows
HP C++ for Tru64 UNIX 7.1.
HP aC++ A.06.14.
Intel C++ 9.1 on Windows, 9.0 on Linux.
Metrowerks CodeWarrior 9.4 on Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE.
Sun Studio 11 on Solaris.

Acknowledgements

Thomas Witt managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Kim Barrett consolidating Boost.Iostreams changes from various branches and Rene Rivera for general build and installation support.

Version 1.34.0

Sat, 12 May 2007 12:00:00 GMT

New Libraries

Foreach Library: BOOST_FOREACH macro for easily iterating over the elements of a sequence, from Eric Niebler.
Statechart Library: Arbitrarily complex finite state machines can be implemented in easily readable and maintainable C++ code, from Andreas Huber.
TR1 Library: An implementation of the C++ Technical Report on Standard Library Extensions, from John Maddock. This library does not itself implement the TR1 components, rather it's a thin wrapper that will include your standard library's TR1 implementation (if it has one), otherwise it will include the Boost Library equivalents, and import them into namespace std::tr1. Highlights include: Reference Wrappers, Smart Pointers, result_of, Function Object Binders, Polymorphic function wrappers, Type Traits, Random Number Generators and Distributions, Tuples, Fixed Size Array, Hash Function Objects, Regular Expressions, and Complex Number Additional Algorithms.
Typeof Library: Typeof operator emulation, from Arkadiy Vertleyb and Peder Holt.
Xpressive Library: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler.

Updated Libraries

Assign Library:
- Support for ptr_map<key,T> via the new function ptr_map_insert()
- Support for initialization of Pointer Containers when the containers hold pointers to an abstract base class.
Date_time library:
- Support for new US/Canada timezone rules and other bug fixes. See Change History for details.
Filesystem Library: Major upgrade in preparation for submission to the C++ Standards Committee for TR2. Changes include:
- Internationalization, provided by class templates basic_path, basic_filesystem_error, basic_directory_iterator, and basic_directory_entry.
- Simplification of the path interface by eliminating special constructors to identify native formats.
- Rationalization of predicate function design, including the addition of several new functions.
- Clearer specification by reference to POSIX, the ISO/IEEE Single Unix Standard, with provisions for Windows and other operating systems.
- Preservation of existing user code whenever possible.
- More efficient directory iteration.
- Addition of a recursive directory iterator.
Function Library: Boost.Function now implements a small buffer optimization, which can drastically improve the performance when copying or constructing Boost.Function objects storing small function objects. For instance, bind(&X:foo, &x, _1, _2) requires no heap allocation when placed into a Boost.Function object.
Functional/Hash Library:
- Use declarations for standard classes, so that the library doesn't need to include all of their headers
- Deprecated the <boost/functionalhash*.hpp> headers.
- Add support for the BOOST_HASH_NO_EXTENSIONS macro, which disables the extensions to TR1
- Minor improvements to the hash functions for floating point numbers.
Graph Library:
- edmonds_maximum_cardinality_matching, from Aaron Windsor.
- lengauer_tarjan_dominator_tree, from JongSoo Park.
- compressed_sparse_row_graph, from Jeremiah Willcock and Douglas Gregor of Indiana University.
- sorted_erdos_renyi_iterator, from Jeremiah Willcock of Indiana University.
- biconnected_components now supports a visitor and named parameters, from Janusz Piwowarski.
- adjacency_matrix now models the Bidirectional Graph concept.
- dijkstra_shortest_paths now calls vis.initialize_vertex for each vertex during initialization.
- Note: the name of the compiled library for the GraphViz reader has changed to boost_graph (from bgl-viz) to match Boost conventions.
- See the complete revision history for more information.
MultiArray Library: Boost.MultiArray now by default provides range-checking for operator[]. Range checking can be disabled by defining the macro BOOST_DISABLE_ASSERTS before including multi_array.hpp. A bug in multi_array::resize() related to storage orders was fixed.
Multi-index Containers Library:
- New random access indices.
- Non key-based indices feature new rearrange facilities.
- This version also includes a number of optimizations and usage improvements. For a complete list of changes, see the library release notes.
Optional Library:
- boost::none_t and boost::none now added to Optional's documentation
- Relational operators now directly support arguments of type 'T' and 'none_t'
- operator->() now also works with reference types.
- Helper functions make_optional(val), make_optional(cond,val) and get_optional_value_or(opt,alternative_value) added.
- Constructor taking a boolean condition (as well as a value) added.
- Member function get_value_or(alternative_value) added.
- Incompatbility bug with mpl::apply<> fixed.
- Converting assignment bug with uninitialized lvalues fixed.
Parameter Library:
- Every ArgumentPack is now a valid MPL Forward Sequence.
- Support for unnamed arguments (those whose keyword is deduced from their types) is added.
- Support for named and unnamed template arguments is added.
- New overload generation macros solve the forwarding problem directly.
- See also the Python library changes, below.
Pointer Container Library:
- Support for serialization via Boost.Serialization.
- Exceptions can be disabled by defining the macro BOOST_PTR_CONTAINER_NO_EXCEPTIONS before including any header. This macro is defined by default if BOOST_NO_EXCEPTIONS is defined.
- Additional std::auto_ptr<T> overloads added s.t. one can also pass std::auto_ptr<T> instead of only T* arguments to member functions.
- transfer() now has weaker requirements s.t. one can transfer objects from ptr_container<Derived> to ptr_container<Base>,
Python Library:
- Boost.Python now automatically appends C++ signatures to docstrings. The new docstring_options.hpp header is available to control the content of docstrings.
- stl_input_iterator, for turning a Python iterable object into an STL input iterator, from Eric Niebler.
- Support for void* conversions is added.
- Integrated support for wrapping C++ functions built with the parameter library; keyword names are automatically known to docsstrings.
- Enhancements to the API for better embedding support (boost::python::import(), boost::python::exec(), and boost::python::exec_file()).
Signals Library: More improvements to signal invocation performance from Robert Zeh.
Smart Pointers Library:
- Allocator support as proposed in N1851 (162 Kb PDF).
- pointer_cast and pointer_to_other utilities to allow pointer-independent code, from Ion Gaztanaga.
String Algorithm Library:
- lexicographical_compare
- join
- New comparison predicates is_less, is_not_greater.
- Negative indexes support (like Perl) in various algorihtms (*_head/tail, *_nth).
Wave Library:
- Wave now correctly recognizes pp-number tokens as mandated by the C++ Standard, which are converted to C++ tokens right before they are returned from the library.
- Several new preprocessing hooks have been added. For a complete description please refer to the related documentation page: The Context Policy.
- Shared library (dll) support has been added for the generated Wave libraries.
- The overall error handling has been improved. It is now possible to recover and continue after an error or a warning was issued.
- Support for optional comment and/or full whitespace preservation in the generated output stream has been added.
- The Wave library now performs automatic include guard detection to avoid accessing header files more than once, if appropriate.
- Full interactive mode has been added to the Wave tool. Now the Wave tool can be used just like Python or Perl for instance to interactively try out your BOOST_PP macros. Additionally it is now possible to load and save the current state of an interactive session (macro tables et.al.).
- The overall performance has been improved by upto 40-60%, depending on the concrete files to process.
- Support for new pragmas has been added allowing to control certain library features from inside the preprocessed sources (partial output redirection, control of generated whitespace and #line directives).
- Optional support for #pragma message "..." has been added.
- This version also includes a number of bug fixes and usage improvements. For a complete list of changes, see the libraries change log.

Supported Compilers

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

Apple GCC 4.0.1 on Mac OS X.
Borland C++ 5.8.2 on Windows.
GNU C++
- 3.2.x., 3.3.x, 3.4.x, 4.0.x, 4.1.x on Linux
- 4.1.x on Solaris
- 3.4.x on Windows
HP aC++ A.06.14.
Intel C++ 9.1 on Windows, 9.0 on Linux.
Metrowerks CodeWarrior 9.4 on Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE.
Sun Studio 11 on Solaris.

Acknowledgements

Thomas Witt managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Vladimir Prus for making Boost.Build version 2 a reality, David Abrahams for authoring a new getting started guide and Greg D. for answering countless questions.

Version 1.33.1

Tue, 5 Dec 2006 12:00:00 GMT

Updated Libraries

Any Library: Cast to reference types introduced in 1.33.0 is now documented on any_cast documentation page.
Bind Library: Bind expressions now support comparisons and negation. Example: bind(&X::name, _1) < bind(&X::name, _2).
Config Library: Don't undef BOOST_LIB_TOOLSET after use.
Boost.Python:
- The build now assumes Python 2.4 by default, rather than 2.2
- Support Python that's built without Unicode support
- Support for wrapping classes with overloaded address-of (&) operators
Smart Pointer Library: Fixed problems under Metrowerks CodeWarrior on PowerPC (Mac OS X) with inlining on, GNU GCC on PowerPC 64.
Regex Library: Fixed the supplied makefiles, and other small compiler specific changes. Refer to the regex history page for more information on these and other small changes.
Iostreams Library: Improved the interface for accessing a chain's components, added is_open members to the file and file descriptor devices, fixed memory-mapped files on Windows, and made minor changes to the documentation.
Boost.Python:
- Added support for docstrings on nonstatic properties.
- We now export the client-provided docstrings for init<optional<> > and XXX_FUNCTION_OVERLOADS() for only the last overload.
- Support for Embedded VC++ 4 and GCC-3.3 on MacOS added
- Introduced better support for rvalue from-python conversions of shared_ptr.
- Support for exposing vector<T*> with the indexing suite.
- updated visual studio project build file.
- Added search feature to the index page.
Functional/Hash Library: Fixed the points example.
Multi-index Containers Library: Fixed a problem with multithreaded code, and other minor changes. Refer to the library release notes for further details.
Graph Library:
- Fixed a problem with the relaxed heap on x86 Linux (fixes bug in dijkstra_shortest_paths).
- Fixed problems with cuthill_mckee_ordering and king_ordering producing no results.
- Added color_map parameter to dijkstra_shortest_paths.
Signals Library: Fixed problems with the use of Signals across shared library boundaries.
Thread library: read_write_mutex has been removed due to problems with deadlocks.
Wave library (V1.2.1): Fixed a couple of problems, refer to the change log for further details.

Supported Compilers

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

New for this release: Support for building with the newest STLport-5.0 was added. The support includes building with MinGW Runtime 3.8 plus STLport-5.0 improved to support wide character operations. Apple GCC 4.0, HP Tru64 C++, and Microsoft Visual C++ 8.0 are supported platforms. We have added an experimental autoconf-like configure script for Unix-like systems: run configure --help for more information.

Apple GCC 3.3, 4.0 on Mac OS X.
Borland C++ 5.6.4 on Windows.
GNU C++ 2.95.3 (with and without STLport), 3.2.x., 3.3.x, 3.4.x, 4.0.x on Windows, Linux and Solaris.
HP C++ for Tru64 UNIX 7.1.
Intel C++ 8.1, 9.0 on Windows, Linux.
Metrowerks CodeWarrior 8.3, 9.4, 9.5 on Mac OS X and Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE.

Acknowledgements

Douglas Gregor managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Aleksey Gurtovoy and Misha Bergal, who managed to keep the regression testing system working throughout the release process; David Abrahams, Beman Dawes, Aleksey Gurtovoy, Bronek Kozicki, Rene Rivera and Jonathan Turkanis for greatly improving the quality of this release; Rene Rivera for the new Boost web page design; and Zoltan "cad" Juhasz for the new Boost logo.

Version 1.33.0

Thu, 11 Aug 2005 12:00:00 GMT

New Libraries

Iostreams Library: Framework for defining streams, stream buffers and i/o filters, from Jonathan Turkanis.
Functional/Hash Library: A TR1 hash function object that can be extended to hash user defined types, from Daniel James.
Parameter Library: Write functions that accept arguments by name: especially useful when a function has more than one argument with a useful default value, since named arguments can be passed in any order.
Pointer Container Library: Containers for storing heap-allocated polymorphic objects to ease OO-programming, from Thorsten Ottosen.
Wave: Standards conformant implementation of the mandated C99/C++ preprocessor functionality packed behind an easy to use iterator interface, from Hartmut Kaiser.

Updated Libraries

Any Library: any_cast has been enhanced to allow direct access to any's held value.
Assignment Library: Support for Pointer Container Library and new efficient functions ref_list_of() and cref_list_of() for generating anonymous ranges.
Bind Library: Bind expressions now support comparisons and negation. Example: bind(&X::name, _1) < bind(&X::name, _2).
Date-Time Library:
- Added local time and time zone classes.
- Added format-based Input/Output facets.
- For a complete list of changes, see the library change history.
Graph Library: Introduced several new algorithms and improved existing algorithms:
- Experimental Python bindings, from Doug Gregor and Indiana University.
- floyd warshall all pairs shortest paths, from Lauren Foutz and Scott Hill.
- astar search, from Kristopher Beevers and Jufeng Peng.
- fruchterman reingold force directed layout, from Doug Gregor and Indiana University.
- biconnected components and articulation points, from Jeremy Siek, Janusz Piwowarski, and Doug Gregor.
- sequential vertex coloring has been updated, tested, and documented.
- gursoy atun layout, from Jeremiah Willcock and Doug Gregor of Indiana University.
- king ordering, from D. Kevin McGrath of Indiana University.
- cuthill mckee ordering has been recast as an invocation of breadth first search and now supports graphs with multiple components.
- dijkstra shortest paths now uses a relaxed heap [61] as its priority queue, improving its complexity to O(V log V) and improving real-world performance for larger graphs.
- read graphviz now has a new, Spirit-based parser that works for all graph types and supports arbitrary properties on the graph, from Ron Garcia. The old, Bison-based GraphViz reader has been deprecated and will be removed in a future Boost release. write graphviz also supports dynamic properties.
- subgraph: get_property now refers to the subgraph property, not the root graph's property.
- See the history for additional changes and bug fixes.
Multi-index Containers Library:
- New hashed indices.
- Added serialization support.
- For a complete list of changes, see the library release notes.
Program Options Library:
- Option descriptions are now printed with word wrapping.
- Command line parser can bypass unregistered options, instread of throwing.
- Removed support for "implicit" (optional) values.
- New customization method 'command_line_parser::extra_style_parser'. Unlike 'additional_parser', allows the user to parse several tokens and return a vector of options, not just a single option.
- Work with disabled exceptions.
Property Map Library: Introduced the dynamic properties class, which provides dynamically-typed access to a set of property maps.
Boost.Python:
- Added support for docstrings on nonstatic properties.
- We now export the client-provided docstrings for init<optional<> > and XXX_FUNCTION_OVERLOADS() for only the last overload.
- Support for Embedded VC++ 4 and GCC-3.3 on MacOS added
- Introduced better support for rvalue from-python conversions of shared_ptr.
- Support for exposing vector<T*> with the indexing suite.
- updated visual studio project build file.
- Added search feature to the index page.
Random Number Library: Improved initialization for mersenne_twister, algorithm by Makoto Matsumoto and Takuji Nishimura, implemented for Boost by Jens Maurer.

Note: All test vectors for mersenne_twisters constructed or seeded without parameters or with a single unsigned int parameter become invalid.
Range Library: Minor addition of convenience functions to iterator range like front(), back() and operator[]().
Regex Library:
- Rewritten front end parser now supports (?imsx-imsx) constructs, plus lookbehind assertions and conditional expressions.
- Thin wrapper classes improve integration with MFC/ATL code.
- Full (optional) Unicode support via the ICU library. Refer to the regex history page for more information on these and other small changes.
Serialization Library:
- DLL version.
- Auto-linking.
- Serialization of variants.
- Improved serialization of shared pointers.
Signals Library: added slot blocking/unblocking, from Frantz Maerten. Huge improvements to signal invocation performance from Robert Zeh.

Supported Compilers

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

Apple GCC 3.x on Mac OS X.
Borland C++ 5.6.4 on Windows.
GNU C++ 2.95.3 (with and without STLport), 3.2.x., 3.3.x, 3.4.x, 4.0.x on Windows, Linux and Solaris.
Intel C++ 8.1, 9.0 on Windows, Linux.
Metrowerks CodeWarrior 8.3, 9.4, 9.5 on Mac OS X and Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0 beta. Note: due to intermittent problems with Visual C++ 8.0 beta, and the presence of a variety of pre-release compiler builds, we are unable to guarantee compatibility until the final compiler is released.

Acknowledgements

Douglas Gregor managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Aleksey Gurtovoy and Misha Bergal, who managed to keep the regression testing system working throughout the release process; David Abrahams, Beman Dawes, Aleksey Gurtovoy, Rene Rivera and Jonathan Turkanis for greatly improving the quality of this release; Rene Rivera for the new Boost web page design; and Zoltan "cad" Juhasz for the new Boost logo.

Version 1.32.0

Fri, 19 Nov 2004 12:00:00 GMT

Important - New Toolset Names

The names of some the Boost.Build toolsets have been changed to remove the "." (dot) character and to fix some other naming inconsistencies. For example, vc7.1 toolset was renamed to become vc-7_1. Please refer to the Supported Toolsets section of the installation guide for the complete list of the current toolset names. This change was made as a part of the effort to make the Boost distribution compatible with ISO 9660 level 2 requirements.

New Libraries

Assignment Library: Filling containers with constant or generated data has never been easier, from Thorsten Ottosen.
Minmax Library: Standard library extensions for simultaneous min/max and min/max element computations, from Herve Bronnimann.
Multi-index Containers Library: Containers with multiple STL-compatible access interfaces, from Joaquin M Lopez Munoz.
Numeric Conversion Library: Optimized policy-based numeric conversions, from Fernando Cacciola.
Program Options Library: Access to configuration data given on command line, in config files and other sources, from Vladimir Prus.
Range Library: a new infrastructure for generic algorithms that builds on top of the new iterator concepts, from Thorsten Ottosen.
Serialization Library: Serialization/de-serialization of arbitrary C++ data structures to various formats including text, binary, and xml, from Robert Ramey.
String Algorithms Library: Collection of string related algorithms for case conversion, trimming, find/replace operations and more, from Pavol Droba.
Tribool: 3-state boolean type library, from Doug Gregor.

Updated Libraries

Compose: This deprecated library has been removed.
Graph:
- Added bundled properties to the adjacency_list and adjacency_matrix class templates, greatly simplifying the introduction of internal vertex and edge properties.
- The LEDA graph adaptors have been ported to LEDA 4.5.
- Added algorithms for betweenness centrality and betweenness centrality clustering.
- Added circle layout and undirected spring layout algorithms.
MPL Library:
- Updated to use the Boost Software License.
- New documentation, including a complete reference manual.
- Major interface changes and improvements, many of which are not backward compatible. Please refer to the 1.32 changelog for the detailed information about upgrading to the new version.
Python Library:
- Updated to use the Boost Software License.
- a new, better method of wrapping classes with virtual functions has been implemented.
- Support for the new Python Bool type, thanks to Daniel Holth.
- Support for upcoming GCC symbol export control features have been folded in, thanks to Niall Douglas.
- Improved support for std::auto_ptr-like types.
- Components used by other libraries have been moved out of python/detail and into boost/detail to improve dependency relationships.
- Miscellaneous bug fixes and compiler workarounds.
Signals Library: Introduced deterministic slot ordering, permitting slots to be connected at the beginning or end of slot groups or the slot list itself. Combiners may safely have state and are accessible from the signal.
Utility: class template result_of added.
Test Library:
- namespace names gets shorten; old one still supported till next release
- added proper encoding of XML PCDATA
- support for wide string comparison implemented
For complete list of changes see Test Library release notes.

Regression tests

This release has been extensively tested on a variety of different compilers and platforms. It is known to contain no regressions against the previous reference release on the compilers and configurations tested. Please refer to the corresponding regression reports to see how well your compiler performs on the new Boost codebase.

Acknowledgements

Aleksey Gurtovoy managed this release. Managing a release at all is an enormous job, and Aleksey always goes beyond merely meeting requirements by insisting on the highest possible quality. The Boost membership owes him a debt of gratitude.

This release wouldn't have been possible without the dedicated effort of many, many members of the Boost community who generously contributed their outstanding expertise, time and energy to making it happen. For patches, bug fixes, troubleshooting, expert advice, and prompt responses to the release manager's requests we thank:

David Abrahams, Misha Bergal, Jonathan Brandmeyer, Fernando Cacciola, Marshall Clow, Christopher Currie, Pavol Droba, Caleb Epstein, Eric Friedman, Jeff Garland, Michael Glassford, Doug Gregor, Joel de Guzman, Hubert Holin, Jaakko Jarvi, Hartmut Kaiser, Bronek Kozicki, Tarjei Knapstad, Toon Knapen, Aaron W. LaFramboise, Joaquin M Lopez Munoz, Christoph Ludwig, John Maddock, Paul Mensonides, Guillaume Melquiond, Thorsten Ottosen, Vladimir Prus, Robert Ramey, Rene Rivera, Gennadiy Rozental, Stefan Slapeta, Jonathan Turkanis, Pavel Vozenilek, Jonathan Wakely, Daryle Walker, Victor A. Wagner Jr. and Martin Wille.

Also, our special thanks go to: John Maddock for the managing the effort of converting the majority of the Boost libraries to the Boost Software License, Eric Niebler and Joel de Guzman for taking on the important job of improving the Boost documentation's look and feel, and last, but not least, to our regression test runners, without whom we simply would never have released: Toon Knapen, Bronek Kozicki, Rene Rivera, Markus Schopflin, Stefan Slapeta, Victor A. Wagner Jr. and Martin Wille.

Thank you everybody!

Version 1.31.0

Mon, 26 Jan 2004 12:00:00 GMT

New License

A unified Boost Software License has been developed and will gradually replace the individual licenses for most Boost libraries. The new license offers better legal protection for both users and developers, and should speed user's legal reviews of Boost libraries. Dave Abrahams led the Boost effort to develop better licensing. The legal team was led by Diane Cabell, Director, Clinical Programs, Berkman Center for Internet & Society, Harvard Law School. Devin Smith, attorney, Nixon Peabody LLP, wrote the Boost License. Eva Chan, Harvard Law School, contributed analysis of issues and drafts of various legal documents.

Note: Many of the Boost libraries are still using earlier licenses, though all conform to the Boost License Requirements. After this release we will begin an effort to move toward uniform use of the new license.

Build and Installation

New Getting Started procedures ease download and installation, from Rene Rivera and others.
Improved support for libraries requiring separate compilation, from John Maddock and others.

New Libraries

enable_if: Selective inclusion of function template overloads, from Jaakko Jarvi, Jeremiah Willcock, and Andrew Lumsdaine. This is an important new technique which exploits the SFINAE (substitution-failure-is-not-an-error) principle.
Variant Library: Safe, generic, stack-based discriminated union container, from Eric Friedman and Itay Maman.

Updated Libraries

Compose: This library has been deprecated and will be removed in a future release. Use Bind or Lambda instead.
Date Time Library: A whole host of bug fixes, new features, and documentation improvements. See the Date Time Change History for details.
Filesystem Library: Several added functions, including improved checking for directory and file name portability.
Iterator Library: Major version upgrade, with interface as proposed for the C++ library TR, including an improved iterator_adaptor design plus several new components, from David Abrahams, Jeremy Siek, and Thomas Witt.
MultiArray: The multi_array class template now provides an element-preserving resize operation as well as default construction (see the reference manual for more information).
Python Library:
- Support for Python 2.3 and Intel C++ on Linux
- Container Indexing Suite added.
- injected constructors and wrapped function objects.
- wrapping static data members.
- std::wstring conversions.
- Improved keyword arguments.
- Better error messages, including name demangling for GCC.
- Simpler build procedure.
- ...and more....
Random Number Library: Interface changed to match the C++ TR proposal, from Jens Maurer.
Regex: Completely new matching algorithm is now much faster than before, plus a selection of new features and enhancements.
Boost.Spirit 1.8.0:
- Multiple grammar start rules
- Multiple Scanner rules (no more scanner business woes)
- More dynamic parsers
- Predefined actors
- Numerous bug fixes and QOI stuff
- and more...
Starting from Spirit v1.8.0, ill conforming compilers will no longer be supported. If you are still using one of these older compilers, please use Spirit v1.6.x. See [@http://spirit.sf.net Spirit's Site] for more details.
Test Library:
- Free function template based test case
- Custom exception translators support in execution monitor and register_exception_translator added for unit test framework
- Added support for multi-module unit tests in automatic registration facility
- Floating point comparison algorithm reworked (Is not backward compatible!!!)
- Added support for custom users predicate returning both boolean result code and possibly error message
- Documentation structure rework and update
For a complete list of changes see the Test Library release notes.

Miscellaneous

Expanded testing and fixes for non-conforming compilers.
Web site hosting now provided by SourceForge.

Version 1.30.2

Tue, 19 Aug 2003 12:00:00 GMT

Boost Consulting is now hosting Boost CVS mirrors - see our download page.
Backported changes to the config system, to better handle new compiler releases.
Bugs in regression reporting in subproject tests were fixed.
Tests are now run in the context of the user's PATH environment settings
msvc-stlport and intel-win32-stlport toolsets now build static libraries with multithreading enabled, to be compatible with the STLPort builds.
intel-win32 toolset now handles wchar_t correctly when intel is installed over msvc6.
Backported fixes from the main trunk which prevent errors building the Boost.Test library in its default configuration.
Backported portability improvements for checked_delete.
Locale support for metrowerks (requiring a statically-linked runtime) is more uniformly handled.
Backported conversion/lexical_cast's wchar_t fixes from the main trunk.
intel-linux-tools: added rt to FINDLIBS in order to make the clock_gettime() function available (backport of a patch in CVS HEAD).
regression/compiler_status.cpp: backported fixes in error log links generation.

Version 1.30.1

Mon, 4 Aug 2003 12:00:00 GMT

This release was withdrawn on the 12 Aug 2003.

Fixes were made to the following libraries: * The Boost.Lambda ..library is now usable with gcc-2.95.2 * Boost.Spirit: * Fixed. Using MSVC++6 (SP5), calling the assign action with a string value on parsers using the file_iterator will not work. * Fixed: using assign semantic action in a grammar with a multi_pass iterator adaptor applied to an std::istream_iterator resulted in a failure to compile under msvc 7.0. * Fixed: There is a bug in the range_run<CharT>::set(range<CharT> const& r) function in "../boost/spirit/utility/impl/chset/range_run.ipp". * Fixed: handling of trailing whitespace bug (ast_parse/pt_parse related) * Fixed: comment_p and end of data bug * Fixed: Most trailing space bug * Fixed: chset<>::operator ~(range<>) bug, operator &(chset<>, range<>) bug, operator &(range<>, chset<>) bug * Fixed: impl::detach_clear bug * Fixed: mismatch closure return type bug * Fixed: access_node_d[] and access_match_d[] iterator bugs * Fixed a bug regarding thread safety of Phoenix/Spirit closures. * The Boost Template Metaprogramming Library (MPL)'s ..typeof implementation is now compatible with Metrowerks CodeWarrior Pro8. * Boost.Function: workaround for the new Borland patch (version 0x564) and MSVC++ .NET 2003. * Boost.Config, Boost.Format, and Boost.Regex ..have been adjusted to avoid warnings with GCC-3.3, and Boost.Format also now works with string types other than std::string. * Smart Pointers: * checked_delete now works on more platforms * Compatibility with the SunPro compiler * Added missing #includes. * Boost.Python: * warning suppression for finicky compilers * fixed a crashing bug in the raw_function facility when no keyword arguments were passed. * Improved conversion of NULL shared_ptrs to Python.

Version 1.30.0

Wed, 19 Mar 2003 12:00:00 GMT

Filesystem Library added - Portable paths, iteration over directories, and other useful filesystem operations, from Beman Dawes.
Optional Library added - A discriminated-union wrapper for optional values, from Fernando Cacciola.
Interval Library added - Extends the usual arithmetic functions to mathematical intervals, from Guillaume Melquiond, Herve Bronnimann and Sylvain Pion.
MPL added - Template metaprogramming framework of compile-time algorithms, sequences and metafunction classes, from Aleksey Gurtovoy.
Spirit Library added - An LL (unlimited lookahead) parser framework that represents parsers directly as EBNF grammars in inlined C++ source code, complete with semantic actions, ASTs and much more, from Joel de Guzman and team.
Smart Pointers Library - cast functions are now spelled static_pointer_cast / dynamic_pointer_cast; enable_shared_from_this added; shared_ptr::shared_ptr(), shared_ptr::reset(), weak_ptr::weak_ptr(), weak_ptr::reset() no longer throw; get_deleter added; weak_ptr::get() removed; make_shared is now spelled weak_ptr::lock() ; intrusive_ptr documentation added; some experimental undocumented shared_ptr features have been removed; a page describing some smart pointer programming techniques has been added.
boost/assert.hpp, boost/current_function.hpp, boost/throw_exception.hpp, boost/checked_delete.hpp have been documented.
Date-Time Library - several fixes and small additions including an interface change to partial_date. See the Date-Time Change History for more details.
Function Library - added support for assignment to zero (to clear) and comparison against zero (to check if empty).
Operators Library - now takes advantage of named return value optimization (NRVO) when available, from Daniel Frey.
Regression Tests - Much expanded, plus a very nice summary page from Rene Rivera.
Test Library - introduced following new facilities:
- Automatic registration of unit tests
- XML log format
- XML report format
- BOOST_CHECK_NO_THROW test tool
- BOOST_BITWISE_CHECK test tool
For a complete list of changes see the Test Library release notes.
Many fixes and enhancements to other libraries.

Version 1.29.0

Thu, 10 Oct 2002 12:00:00 GMT

Date-Time Library added - Dates, times, leap seconds, infinity, and more, from Jeff Garland.
Dynamic Bitset added - A runtime sized version of the std::bitset class from Jeremy Siek and Chuck Allison.
Format Library added - Type-safe 'printf-like' format operations, from Samuel Krempp.
Function Library: Major syntactic changes have been made. Some old syntax and little-used features have been deprecated (and will be removed shortly), and the syntax for the boost::function class template has been greatly improved on conforming compilers. Please see the compatibility note for more information.
Multi-array Library added - Multidimensional containers and adaptors for arrays of contiguous data, from Ron Garcia.
Preprocessor Library: Major upgrade, from Paul Mensonides.
Python Library - Version 2 is released, from Dave Abrahams and others. This is a major rewrite which works on many more compilers and platforms, with a completely new interface and lots of new features. Boost.Python v2 requires Python 2.2 or later.
Signals Library added - Managed signals & slots callback implementation, from Doug Gregor.
Test Library: Major new version, including full unit test capabilities, from Gennadiy Rozental.
uBLAS Library added - Basic linear algebra for dense, packed and sparse matrices, from Joerg Walter and Mathias Koch.

Version 1.28.0

Wed, 15 May 2002 12:00:00 GMT

The Boost mailing lists are now also accessible as newsgroups.
A powerful mailing list archive has been contributed by the ActiveState Programmer Network.
Lambda Library added, from Jaakko Jarvi and Gary Powell. Define small unnamed function objects at the actual call site: for_each( a.begin(), a.end(), std::cout << _1 << ' ' );
I/O State Saver Library added - Save I/O state to prevent jumbled data, from Daryle Walker.
Configuration Library: User code should not use BOOST_NO_LIMITS.
Random Number Library: Avoid compiler warnings.
Smart Pointers Library: Added shared_polymorphic_cast and shared_polymorphic_downcast.
Function Library: Now supports function objects with the unary & operator overloaded.
Utility Library: Added addressof() function.
The usual small fixes and tweaks.

Version 1.27.0

Tue, 5 Feb 2002 12:00:00 GMT

Python Library: Scott Snyder contributed inplace operator support.
Integer Library: Daryle Walker contributed enhancements to the type selection templates, and added new compile-time bit mask, binary logarithm, and extrema templates.
Function Library: user may request that boost::function objects store a reference to a function object target instead of a copy, using ref. Stateless objects are optimized so that they require no dynamic storage.
Quaternions: added support for GCC 2.95.x.
Octonions: added support for GCC 2.95.x.
Smart Pointers Library: Peter Dimov contributed a new implementation that fixes some bugs and adds some features including thread safety when manipulating the use count, custom delete functions, a new weak_ptr, and shared_static_cast and shared_dynamic_cast.
Preprocessor Library: changed macro prefix from BOOST_PREPROCESSOR to BOOST_PP, added support for list data structure manipulation, added examples, made library ANSI C friendly, added generalized repetition and iteration primitives, improved reference manual.
Threads Library: Mac Carbon implementation contributed by Mac Murrett.
Minor fixes to many libraries.

Version 1.26.0

Fri, 30 Nov 2001 12:00:00 GMT

Common Factor Library added. Greatest common divisor and least common multiple, from Daryle Walker.
Preprocessor Library added. Preprocessor metaprogramming tools including repetition and recursion, from Vesa Karvonen.
Iterator Adaptor Library: Added generator iterator adaptor, from Jens Maurer.
Random Number Library: Removed iterator interface. Fixed overflows in uniform_int<>. Both changes cause random number sequences to differ compared to previous boost releases.
[phase library..operators.hpp:] Improvements from Daryle and Helmut Ziesel
Boost.Build: Continuing improvements, including pre-built Boost.Jam executables.
Minor fixes to a number of other libraries.

Version 1.25.1

Mon, 5 Nov 2001 12:00:00 GMT

Boost Build System: Continued improvements.
Config Library: Continued refinements.
Graph Library: Final cleanup for upcoming the Boost Graph Library book.
Thread Library: Minor fixes - tests now pass on most Win32 and POSIX systems including Linux and Solaris. Semaphore removed as too error prone.
Function Library: direct support for member function pointers and documentation updates.
Boost-Users mailing list has been created to address topics of interest to users of Boost libraries.
Boost Wiki web added. Provides a place for Boost users to openly discuss and document the use of Boost libraries. It is not officially maintained by Boost developers.

Version 1.25.0

Mon, 1 Oct 2001 12:00:00 GMT

Thread Library added. Portable C++ multi-programming at last, from William Kempf.
Base From Member added to Utility Library. Support for the base from member idiom, from Daryle Walker.
Bind and mem_fn added - Generalized binders for function/object/pointers and member functions, from Peter Dimov.
Array Library: Minor updates, from Nico Josuttis.
Config Library: major redesign with much improved and automated configuration of Boost libraries for specific compilers, from John Maddock.
Random Number Library: Fixed bug when copying normal_distribution and improved the documentation, from Michael Stevens and Jens Maurer.
Special functions, octonions, quaternions updated, now useable with many more compilers, plus three new special functions, from Hubert Holin, Eric Ford, and others.
Tokenizer Library: fixes/enhancements to escaped_list_separator based on empty fields and tokens comments from Johan Nillson and Jens Maurer.
Coming Soon - A mailing list for Boost users!

Version 1.24.0

Sun, 19 Aug 2001 12:00:00 GMT

Tuple Library added. Tuples ease definition of functions returning multiple values, and more, from Jaakko Jarvi.
Minor fixes to some other libraries.
Boost Build System added. Preliminary release of an innovative build system for Boost libraries, from Dave Abrahams and others.
Formal Review Schedule added. Shows current, future, and recent past review dates.

Version 1.23.0

Fri, 6 Jul 2001 12:00:00 GMT

Any Library added. Safe, generic container for single values of different value types, from Kevlin Henney.
Function Library added. Function object wrappers for deferred calls or callbacks, from Doug Gregor.
Tokenizer Library added. Break a string into a series of tokens, from John Bandela.
Special functions, octonions, quaternions added, from Hubert Holin.
Smart Pointer Library: shared_ptr polymorphic pointers now work on more broken compilers.
IBM/Aix Compiler status table contributed by Toon Knapen.
Minor fixes to a number of other libraries.

Version 1.22.0

Fri, 25 May 2001 12:00:00 GMT

CRC Library added. Compute cyclic redundancy codes from Daryle Walker.
Graph Library: Minor fixes.
Integer Traits: added wchar_t specialization, minor portability fixes.
Regex Library: Minor portability fixes.
Smart Pointer Library: fixed bugs, tightened requirements, added examples.
Utility Library: added checked_delete() and checked_array_delete() functions.

Version 1.21.2

Tue, 24 Apr 2001 12:00:00 GMT

Compatibility Library added: Help for non-conforming standard libraries missing CXX headers from Ralf Grosse-Kunstleve, and help for missing standard library <limits> header from Jens Maurer. (These are unreviewed implementation libraries, treated as maintenance steps only.)
Random Number Library: Split into separate headers, updated documentation, added lagged_fibonacci generator.
Integer Library: Minor portability update.
Graph Library: Changed algorithm interfaces to use named parameters technique. Added graph isomorphism algorithm.
Download refinements - files now available from either FTP or web server.
Tracker Added: View and submit bug, support, and feature requests.
Minor portability fixes in several other libraries.

Version 1.21.1

Wed, 14 Mar 2001 12:00:00 GMT

New download page. The .zip and .tar.gz files now live on the SourceForge ftp site.
Graph Library: Minor docs fixes.
Python Library: Minor docs fixes.
Regex Library: Minor portability fixes.

Version 1.21.0

Fri, 9 Mar 2001 12:00:00 GMT

Iterator Adaptor Library added. Adapt a base type into a standard conforming iterator, and more, from Dave Abrahams, Jeremy Siek, and John Potter.
Pool Library added. Memory pool management from Steve Cleary.
Test Library added. Support for program testing and execution from Beman Dawes.
Generic Programming Techniques page added, contributed by Dave Abrahams.
Graph Library: Updated use of iterator adaptors. Changed operator == for adjacency_list::edge_descriptor to improve semantics for multigraphs. Moved adjacency_iterator_generator from namespace detail to boost and added documentation. Renamed dynamic_components() to incremental_components(), better matching graph literature terminology. Cleaned up interface of connected_components() and created separate strong_components() function using Tarjan's more efficient algorithm. Fixed documentation figures for adjacency_list and adjacency_matrix. Added docs for cuthill_mckee_ordering() algorithm.
Python Library upgraded. Better compatibility with Python 2.0, NULL pointers and smart-pointers get converted to/from python None, massive documentation review/revision.
Regular Expression Library: Minor fixes for Unicode platforms.
Type Traits Library upgraded: Major revision.

Version 1.20.2

Sat, 10 Feb 2001 12:00:00 GMT

Array traits: minor portability fix.
Graph Library - Changes to breadth_first_search() re: BFSVisitor, added max flow algorithms edmunds_karp_max_flow() and push_relabel_max_flow(), added adjacency_matrix graph class, added filtered_graph adaptor
Integer Library: minor fixes to integer.hpp and integer_test.cpp
Portability Hints: Microsoft Visual C++ added.
Random Number Library: Minor portability fixes
Rational Number Library: documentation updates, efficiency improvements, co-operates with user-defined types, regression tests
Regular Expression Library: minor updates.
Smart Pointer Library: shared_ptr example added.
Timer Library: changed to an all inline implementation.

Version 1.20.1

Wed, 10 Jan 2001 12:00:00 GMT

compressed_pair.hpp minor update fixes test failures of other libraries under VC++.
Graph Library minor updates.
Regular Expression Library minor updates.
Minor website fixes including missing files in boost_all.zip.

Version 1.20.0

Sat, 6 Jan 2001 12:00:00 GMT

Conversion Library added - cast and lexical_cast headers from Dave Abrahams and Kevlin Henney.
Web site moved to a larger host after the old ISP collapsed unexpectedly.
Regression tests now include execution testing. See Compiler Status.
Discussion Policy page added.
Array Library minor documentation improvements.
Graph Library minor updates.
Regular Expression Library minor updates.

Version 1.19.0

Sun, 10 Dec 2000 12:00:00 GMT

Concept Check Library added - tools for generic programming from Jeremy Siek.
Python Library added - reflects C++ classes and functions into Python, from Dave Abrahams.
Static Assert Library added - compile time assertions from John Maddock
Property Map Concepts added - interfaces which map key objects to value objects from Jeremy Siek.
Graph Library minor updates.
Regular Expression Library minor updates.
Library Requirements and Guidelines - directory name policy added.
FAQ updated.

Version 1.18.3

Sat, 18 Nov 2000 12:00:00 GMT

Graph Library minor fixes and additions.
Regular Expression Library minor fixes.
cast.hpp Borland compiler fixes.
cstdint.hpp changed to no longer expose names to the global namespace.
BeOS5/Intel compiler status contributed by John Maddock.
Compiler Status added two additional test programs.

Version 1.18.2

Fri, 3 Nov 2000 12:00:00 GMT

Cast Library Fix numeric_cast<> bugs with floating types.
Graph Library minor fixes.
Regular Expression Library minor fixes.
Configuration Header more fixes for broken compilers.
Boost Header Dependencies page added.
Terminology change: Several headers previously lumped together as a "utility" library are now considered separate libraries. For historical reasons, their non-header files still live in the "utility" sub-directory.

Version 1.18.1

Sun, 15 Oct 2000 12:00:00 GMT

Graph Library, Random Number Library, and Regular Expression Library: Minor fixes.
Configuration Header additions for various compiler foibles.
Portability Hints: Borland C++ 5.5.1 from Jens Maurer added.
Compiler Status updated for latest versions of several compilers.

Version 1.18.0

Thu, 28 Sep 2000 12:00:00 GMT

Preliminary release of two important new libraries:
- Graph Library - Generic graph components and algorithms from Jeremy Siek and a University of Notre Dame team.
- Regular Expression Library - Text pattern matching in all its glory from John Maddock.
Other changes:
- Array Library improvements reflecting formal review comments.
- functional.hpp compiler workarounds added.
- tie() function template added to utility.hpp for easier handling of std::pair<> return values.
- Integer Library improved handling of 64-bit integers.
- Minor web site page updates.

Version 1.17.0

Thu, 3 Aug 2000 12:00:00 GMT

Array Library added - An STL compliant container wrapper for arrays of constant size from Nicolai Josuttis.
array traits header renamed array_traits.hpp (was array.hpp).
Random Number Library: more minor changes to support more compilers.
Smart Pointer Library: performance reducing exception-specifications removed.
Compiler and test program fixes for call_traits, compressed_pair, and type_traits.
Updated cast.hpp to clear compiler warning messages.
Linux Compiler Status added.
Boost source code now lives in a publicly accessible Concurrent Versions System (CVS) repository.

Version 1.16.1

Wed, 5 Jul 2000 12:00:00 GMT

Integer library: fixed cstdint.hpp bug, added cstdint_test.cpp, updated docs.
Random Number Library: minor fixes to random.hpp and random_test.cpp to support more compilers.
Updated cast.hpp with more Microsoft compiler workarounds.
Updated call_traits docs, added call_traits_test.cpp.
Cleanup and bug fixes for operators.hpp and operators_test.cpp.

Version 1.16.0

Wed, 28 Jun 2000 12:00:00 GMT

Added Functional Library - Enhanced function object adaptors from Mark Rodgers.
Added missing Random Number Library files.
Updated operators docs and operators.hpp.
New iterator.hpp header.
Minor rational.hpp, rational_example.cpp, and integer_traits_test.cpp changes to support more compilers.
Revised cast.hpp: removed implicit_cast, plus fixes for broken compilers.
Minor smart_ptr.hpp workaround for some GCC builds.
Several config.hpp changes for Microsoft, Intel, and other compilers.
Added Configuration Header page and test program.
Added Experimental Compiler Status page showing what library works with which compilers.

Version 1.15.1

Wed, 21 Jun 2000 12:00:00 GMT

Fixes to cast.hpp and operators fix. Minor additions to config.hpp for Microsoft compilers. The 1.15.0 operators changes seem to have introduced incompatibilities. We are working on fixing them, and have started to build a regression test to prevent similar future problems.

Version 1.15.0

Sat, 17 Jun 2000 12:00:00 GMT

Random Number Library from Jens Maurer added. Updated utility library operators eliminates code bloat. Minor additions to config.hpp and cast.hpp for Microsoft compilers.

Version 1.14.3

Mon, 29 May 2000 12:00:00 GMT

Minor additions to config.hpp for Borland compilers. Minor fix to type_traits example. Minor web site fixes. Library Formal Review Process page added.

Version 1.14.2

Tue, 9 May 2000 12:00:00 GMT

No libraries updated. Library Requirements and Guidelines expanded, Library Submission Process added.

Version 1.14.1

Fri, 17 Mar 2000 12:00:00 GMT

Minor fix to rational.hpp. Minor documentation changes to the Smart Pointer Library and call_traits, compressed_pair, and type_traits. Updated Library Guidelines and People page.

Version 1.14.0

Sun, 5 Mar 2000 12:00:00 GMT

Integer Library status upgraded after removing bin_bun.hpp. The "Experimental" library category has been removed; the boost files/vault now serves the purpose. Minor fix to smart_ptr.hpp line endings.

Version 1.13.0

Tue, 29 Feb 2000 12:00:00 GMT

Adds Utility Library type_traits, call_traits, and compressed_pair headers from John Maddock, Steve Cleary and Howard Hinnant.

Version 1.12.0

Wed, 23 Feb 2000 12:00:00 GMT

Adds a integer_traits header from Jens Maurer to the Integer Library.

Version 1.11.2

Mon, 21 Feb 2000 12:00:00 GMT

Smart pointer timings added (thanks to Gavin Collings). Minor fix to the min_rand sample program. Minor fixes to config.hpp.

Version 1.11.1

Wed, 2 Feb 2000 12:00:00 GMT

Minor fix to cast.hpp (thanks to Doncho Angelov).

Version 1.11.0

Tue, 1 Feb 2000 12:00:00 GMT

Added Rational Number Library. Minor fixes to cast.hpp, config.hpp, smart_ptr.hpp, utility.hpp, and to the min_rand sample programs. Minor site cleanup (thanks to Paul Baxter).

Version 1.10.4

Fri, 31 Dec 1999 12:00:00 GMT

Minor fixes to smart_ptr.hpp and cast documentation.

Version 1.10.3

Thu, 30 Dec 1999 12:00:00 GMT

Minor fixes to the compose library examples, operators documentation, operators.hpp, cast documentation, cast.hpp, config.hpp, and smart_ptr.hpp.

This is the first release with a version number. The version numbering scheme is xxx.yyy.zzz.

xxx = Major version
yyy = New library or feature added
zzz = Bug fixes only

Old Versions

Tue, 14 Dec 1999 12:00:00 GMT

14 Dec 1999

Operators.hpp documentation improved.

13 Dec 1999

Added iterator operators and helpers to header operators.hpp, together with an iterator test program. This header is maturing into something really useful for building arithmetic or iterator user-defined types, so look it over even if you browsed one of the earlier versions.

11 Dec 1999

Added next() and prior() to header utility.hpp.

8 Dec 1999

Minor improvements to the smart pointer library: operator ==, operator !=, and specializations for std::swap and std::less now provided.

18 Nov 1999

Minor improvements made to the Operator templates.

15 Nov 1999

Operator templates have been added to the utility library.

11 Oct 1999

Minor smart pointer library and config.hpp changes to improve portability.

26 Sep 1999

Minor updates to several libraries: * polymorphic_downcast<> in the utility library cast.hpp header now works for multiple inheritance cases. * shared_ptr<> and shared_array<> swap() functions added in the smart pointer library. * timer.hpp elapsed_max() and elapsed_min() functions added to the timer library. * integer library bin_ubin.hpp changes to eliminate compiler warning messages. * config.hpp minor changes to aid library developers. No impact on library users.

3 Sep 1999

The cast functions in the utility library were considerably simplified.

1 Sep 1999

The cast functions initially in utility.hpp have been moved to cast.hpp, still in the utility library.

1 Sep 1999

The category "Experimental" has been added to the library page. The integer library is the first entry.

...And the remainder are lost to the mists of time (for now, anyway)....