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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_multiprecision.map.hist"></a><a class="link" href="hist.html" title="History">History</a>
</h3></div></div></div>
<h5>
<a name="boost_multiprecision.map.hist.h0"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_5_0_2_boost_1_85"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_5_0_2_boost_1_85">Multiprecision-5.0.2
(Boost-1.85)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Minor mpfr error handling fix.
</li>
<li class="listitem">
Update fmod to perform post-condition error correction - fixes problems
with types with hidden guard digits such as cpp_dec_float, see <a href="https://github.com/boostorg/multiprecision/issues/604" target="_top">604</a>.
</li>
<li class="listitem">
Update complex_adaptor to work correctly with variable precision types,
see <a href="https://github.com/boostorg/multiprecision/issues/595" target="_top">595</a>.
</li>
<li class="listitem">
Fix potential compilation error in trunc and similar functions, see
<a href="https://github.com/boostorg/multiprecision/issues/586" target="_top">586</a>.
</li>
<li class="listitem">
Allow cpp_bin_float to emulate very low bit count types such as bfloat16_t,
see <a href="https://github.com/boostorg/multiprecision/issues/576" target="_top">576</a>.
</li>
<li class="listitem">
Fix warnings as a result of using now deprecated numeric_limits members,
see <a href="https://github.com/boostorg/multiprecision/issues/573" target="_top">573</a>,
<a href="https://github.com/boostorg/multiprecision/issues/574" target="_top">574</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h1"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_5_0_1_boost_1_84"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_5_0_1_boost_1_84">Multiprecision-5.0.1
(Boost-1.84)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Change <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span></code> to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">array</span></code>
in the tests, fixes <a href="https://github.com/boostorg/multiprecision/issues/567" target="_top">567</a>.
</li>
<li class="listitem">
Correct cpp_int::eval_convert_to to be noexcept, fixes <a href="https://github.com/boostorg/multiprecision/issues/553" target="_top">553</a>.
</li>
<li class="listitem">
Make sure that changing the global precision, also changes the current
thread precision.
</li>
<li class="listitem">
Fix rational_adaptor construction bug, fixes <a href="https://github.com/boostorg/multiprecision/issues/540" target="_top">540</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h2"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_5_0_0_boost_1_82"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_5_0_0_boost_1_82">Multiprecision-5.0.0
(Boost-1.82)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<span class="bold"><strong>BREAKING CHANGE:</strong></span> We now require C++14
as a minimum requirement. This drops support for GCC versions prior to
5 and MSVC prior to 14.1.
</li>
<li class="listitem">
Added a new forward declaration header.
</li>
<li class="listitem">
Update Eigen interoperability so we no longer rely on Eigen's details,
see <a href="https://github.com/boostorg/multiprecision/issues/479" target="_top">479</a>.
</li>
<li class="listitem">
Add Cmake install target.
</li>
<li class="listitem">
Fix cpp_dec_float construction from string in standalone case for better
error handling, see <a href="https://github.com/boostorg/multiprecision/issues/499" target="_top">499</a>.
</li>
<li class="listitem">
Remove redundent definitions when in C++17 mode, see <a href="https://github.com/boostorg/multiprecision/pull/530" target="_top">530</a>.
</li>
<li class="listitem">
Fix the error handling in standalone itrunc and ltrunc.
</li>
<li class="listitem">
Fix potentially uninitialized storage when parsing octal strings.
</li>
<li class="listitem">
Add arm64 and s390x CI testing.
</li>
<li class="listitem">
Add some missing expression template unpacking code for <code class="computeroutput"><span class="identifier">powm</span></code>, see <a href="https://github.com/boostorg/multiprecision/issues/506" target="_top">506</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h3"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_4_1_2_boost_1_81"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_4_1_2_boost_1_81">Multiprecision-4.1.2
(Boost-1.81)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Correct thread-safe static initialization of constants for <a class="link" href="../tut/floats/cpp_bin_float.html" title="cpp_bin_float">cpp_bin_float</a>,
see <a href="https://github.com/boostorg/multiprecision/issues/497" target="_top">497</a>.
</li>
<li class="listitem">
Correct <a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a>
<code class="computeroutput"><span class="identifier">import_bits</span></code> when just
importing the leading few bits of the value, see <a href="https://github.com/boostorg/multiprecision/issues/488" target="_top">488</a>.
</li>
<li class="listitem">
Remove some C++03 idioms, including use of <code class="computeroutput"><span class="number">0</span></code>
rather than <code class="computeroutput"><span class="keyword">nullptr</span></code>.
</li>
<li class="listitem">
Minor fixes for gcc-12 on Mingw.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h4"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_4_1_1_boost_1_80"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_4_1_1_boost_1_80">Multiprecision-4.1.1
(Boost-1.80)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<span class="bold"><strong>Mark C++11 support as deprecated</strong></span>: from
2023 we will move to requiring C++14 as a minimum standard level. That
will drop support for GCC versions prior to 5 and MSVC prior to 14.1.
</li>
<li class="listitem">
Fix conflict between <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">cstdfloat</span><span class="special">.</span><span class="identifier">hpp</span></code>
and this library.
</li>
<li class="listitem">
Clean up lots of gcc and clang warnings.
</li>
<li class="listitem">
Fix input streaming of composite types (complex, interval rational) where
there is a trailing delimeter in the stream and no whitespace.
</li>
<li class="listitem">
Fix <code class="computeroutput"><span class="keyword">constexpr</span></code> integer square
root where the input is 1, 2 or 3.
</li>
<li class="listitem">
Add missing <code class="computeroutput"><span class="preprocessor">#include</span></code>
of <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">memory</span><span class="special">&gt;</span></code> to float128.hpp.
</li>
<li class="listitem">
Correct 2-arg constructor for class <code class="computeroutput"><span class="identifier">number</span></code>
to prevent ambiguity in some cases.
</li>
<li class="listitem">
Correct and make more consistent behaviour of divide-by-zero in gmp.hpp.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h5"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_4_1_0_boost_1_79"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_4_1_0_boost_1_79">Multiprecision-4.1.0
(Boost-1.79)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Big update to support use of this library "standalone": ie
without the rest of Boost. A copy of Boost.Config is still required,
and use of Boost.Math to provide the C99 special functions is optional.
</li>
<li class="listitem">
Fix IO of floating point numbers when <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">fixed</span></code>
is in effect and the precision is zero.
</li>
<li class="listitem">
Fix various spurious GCC warnings in cpp_int bitwise operators.
</li>
<li class="listitem">
Use <code class="computeroutput"><span class="identifier">float128_type</span></code> typedef
throughout to suppress GCC/clang warnings about using a non-standard
extension.
</li>
<li class="listitem">
Correct conversion of Intel's _Quad type to string, see <a href="https://github.com/boostorg/multiprecision/issues/427" target="_top">#427</a>.
</li>
<li class="listitem">
Correct usage of Intel intrinsics on GCC to avoid simply checking for
the header, see <a href="https://github.com/boostorg/multiprecision/issues/419" target="_top">#419</a>.
</li>
<li class="listitem">
Update <code class="computeroutput"><span class="identifier">signbit</span></code> to match
<code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">signbit</span></code> and to return the correct sign
when the result is zero, <a href="https://github.com/boostorg/multiprecision/issues/426" target="_top">#426</a>.
</li>
<li class="listitem">
Fix over-large reductions in default sin/cos code.
</li>
<li class="listitem">
Fix some mpq rational arithmetic errors: Multiplication by zero should
not proceed via gcd, and multiplication by scalar should be restricted
to integer types (not floats).
</li>
<li class="listitem">
Support conversion to and from <code class="computeroutput"><span class="identifier">__int128</span></code>
and <code class="computeroutput"><span class="identifier">__float128</span></code> everywhere,
not just on an add-hock basis, <a href="https://github.com/boostorg/multiprecision/issues/237" target="_top">#237</a>.
</li>
<li class="listitem">
Avoid unnecessary copying in cpp_int's add_unsigned, <a href="https://github.com/boostorg/multiprecision/issues/357" target="_top">#357</a>.
</li>
<li class="listitem">
Change all bit counts to use <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span></code>
or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span></code>, <a href="https://github.com/boostorg/multiprecision/issues/362" target="_top">#362</a>.
</li>
<li class="listitem">
Bring Eigen traits classes up to date and add tests.
</li>
<li class="listitem">
Fix <code class="computeroutput"><span class="identifier">is_byte_container</span></code>
to correctly handle Eigen types, <a href="https://github.com/boostorg/multiprecision/issues/398" target="_top">#398</a>.
</li>
<li class="listitem">
Improve cpp_int to float conversion to be insensitive to floating point
control flags, <a href="https://github.com/boostorg/multiprecision/issues/360" target="_top">#360</a>.
</li>
<li class="listitem">
Correct interop between signed-zeros and complex number types, <a href="https://github.com/boostorg/multiprecision/issues/396" target="_top">#396</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h6"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_4_0_2_boost_1_78"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_4_0_2_boost_1_78">Multiprecision-4.0.2
(Boost-1.78)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Rework rational_adaptor to remove dependency on Boost.Rational and improve
performance.
</li>
<li class="listitem">
Fix issue with type_traits and clang, see <a href="https://github.com/boostorg/multiprecision/issues/383" target="_top">#383</a>.
</li>
<li class="listitem">
Fixed buggy Lehmer's GCD routine, see <a href="https://github.com/boostorg/multiprecision/issues/370" target="_top">#370</a>.
</li>
<li class="listitem">
Fix mpc_complex constructors so that lossy conversions are explicit,
see <a href="https://github.com/boostorg/multiprecision/issues/363" target="_top">#363</a>.
</li>
<li class="listitem">
Correct miscellaneous configuration issues (Intel intrinsic usage and
Apple clang).
</li>
<li class="listitem">
Correct some iostream operators for unsigned char types.
</li>
<li class="listitem">
Correct mpq_rational conversions to integer types, see <a href="https://github.com/boostorg/multiprecision/issues/342" target="_top">#342</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h7"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_4_0_1_boost_1_77"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_4_0_1_boost_1_77">Multiprecision-4.0.1
(Boost-1.77)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Much improved Karatsuba sqrt for cpp_int/cpp_bin_float.
</li>
<li class="listitem">
Added C++11 compatible <code class="computeroutput"><span class="identifier">to_string</span></code>
free function.
</li>
<li class="listitem">
Fixed bug in Lehmer GCD code, see <a href="https://github.com/boostorg/multiprecision/issues/322" target="_top">#322</a>.
</li>
<li class="listitem">
Fixed debug_adaptor/logged_adaptor to work better with complex, rational
and interval types, see <a href="https://github.com/boostorg/multiprecision/issues/329" target="_top">#329</a>.
</li>
<li class="listitem">
Big update to mixed-variable precision arithmetic code with better options
and thread safety, see <a class="link" href="../tut/variable.html" title="Variable Precision Arithmetic">docs</a>.
</li>
<li class="listitem">
Fixed up hashing of bools and enums when creating hash values.
</li>
<li class="listitem">
Improved conversions to and from enum types.
</li>
<li class="listitem">
Restricted use of Intel intrinsics to when we really are building for
Intel even though the header may be available, see <a href="https://github.com/boostorg/multiprecision/issues/321" target="_top">#321</a>.
</li>
<li class="listitem">
Tidied up Lanczos approximation usage, in conjunction with Boost.Math
this improves the reliability and accuracy of many special functions.
</li>
<li class="listitem">
Fix use of libtommath deprecated features.
</li>
<li class="listitem">
Fixed missing sqrt overload, see <a href="https://github.com/boostorg/multiprecision/issues/319" target="_top">#319</a>.
</li>
<li class="listitem">
Added Karatsuba multiplication to cpp_dec_float to bring it into line
with the other types in this library.
</li>
<li class="listitem">
Added some minor optimizations to mpfr comparison operators.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h8"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_4_0_0_boost_1_76"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_4_0_0_boost_1_76">Multiprecision-4.0.0
(Boost-1.76)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<span class="bold"><strong>BREAKING CHANGE</strong></span>: Massive refactoring
and code simpification makes C++11 an absolute requirement.
</li>
<li class="listitem">
Use BOOST_TRY/CATCH in headers so code can be use din s=exception-free
environments.
</li>
<li class="listitem">
Correct corner case in pow, fixes <a href="https://github.com/boostorg/multiprecision/issues/277" target="_top">#277</a>.
</li>
<li class="listitem">
Correct exception type thrown to match docs in lsb/msb: fixes <a href="https://github.com/boostorg/multiprecision/issues/257" target="_top">#257</a>.
</li>
<li class="listitem">
Allow moves and operators between related but different types (ie types
with the same allocator), fixes <a href="https://github.com/boostorg/multiprecision/issues/278" target="_top">#278</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h9"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_2_5_boost_1_75"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_2_5_boost_1_75">Multiprecision-3.2.5
(Boost-1.75)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Much improved gcd and modulus operations for <a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a>.
</li>
<li class="listitem">
Improved addition/subtraction routines for <a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a>
via Intel's intrinsics.
</li>
<li class="listitem">
<a class="link" href="../tut/ints/gmp_int.html" title="gmp_int">gmp_int</a>:
add better conversion routines for <code class="computeroutput"><span class="keyword">long</span>
<span class="keyword">long</span></code> and <code class="computeroutput"><span class="identifier">__int128</span></code>.
</li>
<li class="listitem">
<a class="link" href="../tut/floats/mpfr_float.html" title="mpfr_float">mpfr_float</a>:
Fix <code class="computeroutput"><span class="identifier">log1p</span></code> corner case.
</li>
<li class="listitem">
Improve accuracy of complex tan/tanh.
</li>
<li class="listitem">
Improve accuracy of trig functions for <a class="link" href="../tut/floats/cpp_bin_float.html" title="cpp_bin_float">cpp_bin_float</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h10"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_2_4_boost_1_73"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_2_4_boost_1_73">Multiprecision-3.2.4
(Boost-1.73)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
IMPORTANT: Mark C++03 support as deprecated and due for removal in 2021.
</li>
<li class="listitem">
Big update to <a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a>
adds faster Karatsuba and Coomba multiplication routines.
</li>
<li class="listitem">
Fix conversion of <a class="link" href="../tut/rational/gmp_rational.html" title="gmp_rational">gmp_rational</a>
to <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">double</span></code>
and <code class="computeroutput"><span class="identifier">__float128</span></code>, fixes
<a href="https://github.com/boostorg/multiprecision/issues/178" target="_top">#178</a>.
</li>
<li class="listitem">
Fix up libtommath support to function with the latest libtom releases.
</li>
<li class="listitem">
Fix up some incompatibilities with the latest Intel C++ compiler.
</li>
<li class="listitem">
Fix up <code class="computeroutput"><span class="keyword">constexpr</span></code> arithmetic
support for forthcoming MSVC release.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h11"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_2_3_boost_1_72"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_2_3_boost_1_72">Multiprecision-3.2.3
(Boost-1.72)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
Big <code class="computeroutput"><span class="keyword">constexpr</span></code> update allows
<a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a>
and <a class="link" href="../tut/floats/float128.html" title="float128">float128</a>
arithmetic to be fully <code class="computeroutput"><span class="keyword">constexpr</span></code>
with gcc and clang 9 or later, or any compiler supporting <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_constant_evaluated</span><span class="special">()</span></code>.
</li></ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h12"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_1_3_boost_1_71"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_1_3_boost_1_71">Multiprecision-3.1.3
(Boost-1.71)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Support hexfloat io-formatting for float128.
</li>
<li class="listitem">
Fix various bugs in variable precision interconversions.
</li>
<li class="listitem">
Respect uppercase for '0x' prefix outputs.
</li>
<li class="listitem">
Incorporate some unit tests from the Etherium project.
</li>
<li class="listitem">
Fix some gcc warnings.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h13"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_1_2_boost_1_70"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_1_2_boost_1_70">Multiprecision-3.1.2
(Boost-1.70)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Fix various conversion issues in the traits classes, check for compatibility
with Boost.Optional.
</li>
<li class="listitem">
Prevent instantiation of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span></code>
on any old type when checking for convertibility. See <a href="https://github.com/boostorg/multiprecision/issues/98" target="_top">#98</a>.
</li>
<li class="listitem">
Update variable precision code to accound for arbitrary precision integers.
See <a href="https://github.com/boostorg/multiprecision/issues/103" target="_top">#103</a>.
</li>
<li class="listitem">
Add support for XML serialization archives.
</li>
<li class="listitem">
Fix bug in fixed precision iostream formatting in <code class="computeroutput"><span class="identifier">mpf_float</span></code>
and <code class="computeroutput"><span class="identifier">mpfr_float</span></code>. See
<a href="https://github.com/boostorg/multiprecision/issues/113" target="_top">#113</a>.
</li>
<li class="listitem">
Add more overloads for special functions which are better handled natively
by MPFR.
</li>
<li class="listitem">
Fixed bug in generic <code class="computeroutput"><span class="identifier">exp</span></code>
implementation which could cause invariant failure.
</li>
<li class="listitem">
Fixed generic conversion from float to integer to avoid undefined behaviour.
See <a href="https://github.com/boostorg/multiprecision/issues/110" target="_top">#110</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h14"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_1_1_boost_1_69"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_1_1_boost_1_69">Multiprecision-3.1.1
(Boost-1.69)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Big update to better support variable precision types so that the precision
of the result is always the largest of all the arguments.
</li>
<li class="listitem">
Add support for allocators that are <code class="computeroutput"><span class="identifier">final</span></code>
in <a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a>.
</li>
<li class="listitem">
Removed use of deprecated Boost.Endian in favour of Predef.
</li>
<li class="listitem">
Add support for <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span></code>.
</li>
<li class="listitem">
Fixed minor bug in constant initialization. See <a href="https://github.com/boostorg/multiprecision/issues/67" target="_top">#67</a>.
</li>
<li class="listitem">
Make assignment of non-finite value to <code class="computeroutput"><span class="identifier">cpp_int</span></code>
a runtime errors. See <a href="https://github.com/boostorg/multiprecision/issues/58" target="_top">#58</a>.
</li>
<li class="listitem">
Added typedefs for <code class="computeroutput"><span class="identifier">cpp_bin_float_oct</span></code>
and <code class="computeroutput"><span class="identifier">cpp_complex_oct</span></code>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h15"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_1_0_boost_1_68"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_1_0_boost_1_68">Multiprecision-3.1.0
(Boost-1.68)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Support added for complex multiprecision numbers.
</li>
<li class="listitem">
Changed conversion to unsigned integer types to be truncating to match
standard defined behaviour.
</li>
<li class="listitem">
Correct bug in MPFR string formatting.
</li>
<li class="listitem">
Fix undefined behaviour in cpp_dec_float conversion from long long.
</li>
<li class="listitem">
Add support for Eigen interoperability.
</li>
<li class="listitem">
float128.hpp: Fix Intel on Windows build.
</li>
<li class="listitem">
Fix type used in temporaries when expanding expression templates containing
mixed expressions.
</li>
<li class="listitem">
Fix infinite loop in gmp_float to fixed-point string conversion.
</li>
<li class="listitem">
Update the expression templates to issue static_asserts with better error
messages when you try and do something unsupported.
</li>
<li class="listitem">
Fix bug in cpp_int where incrementing to zero doesn't set the sign correctly.
</li>
<li class="listitem">
Remove erroneous use of std::move, and rely on NVRO instead.
</li>
<li class="listitem">
Fix up support for changes to MPIR-3.0.
</li>
<li class="listitem">
Fix various conversion errors in cpp_bin_float when the exponent type
is a <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span></code>,
or else we're converting to an integer that is wider than we are.
</li>
<li class="listitem">
Fix compatibility issue with GCC-8 caused by the introduction of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">byte</span></code>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h16"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_3_0_0_boost_1_67"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_3_0_0_boost_1_67">Multiprecision-3.0.0
(Boost-1.67)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<span class="bold"><strong>Breaking Change:</strong></span> When converting a multiprecision
integer to a narrower type, if the value is too large (or negative) to
fit in the smaller type, then the result is either the maximum (or minimum)
value of the target type. This was always the intended behaviour, but
was somewhat haphazardly enforced before. If you really do want just
the low order N bits of a value, then you will need to mask these out
prior to the case, for example: <code class="computeroutput"><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">unsigned</span><span class="special">&gt;(~</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">unsigned</span><span class="special">&gt;(</span><span class="number">0</span><span class="special">)</span> <span class="special">&amp;</span> <span class="identifier">my_value</span><span class="special">)</span></code>.
Note that technically (to avoid undefined behaviour) you should do the
same thing with <a href="https://en.cppreference.com/w/cpp/language/types" target="_top">fundamental
(built-in)</a> integer types too. See <a href="https://svn.boost.org/trac/boost/ticket/13109" target="_top">#13109</a>.
</li>
<li class="listitem">
Fix bug in conversion of decimal to rational types (zero needs special
handling), see <a href="https://svn.boost.org/trac/boost/ticket/13148" target="_top">#13148</a>.
</li>
<li class="listitem">
Fix conversion from cpp_bin_float to a wider <a href="https://en.cppreference.com/w/cpp/language/types" target="_top">fundamental
(built-in)</a> integer type, see <a href="https://svn.boost.org/trac/boost/ticket/13301" target="_top">#13301</a>.
</li>
<li class="listitem">
Improve performance heurists used in cpp_bin_float exp function.
</li>
<li class="listitem">
Fix bug in floor/ceil and cpp_bin_float when the exponent type is wider
than an int, see <a href="https://svn.boost.org/trac/boost/ticket/13264" target="_top">#13264</a>.
</li>
<li class="listitem">
Disable explicit conversion operator when the target type is already
constructible from this type, see <a href="https://github.com/boostorg/multiprecision/issues/30" target="_top">#30</a>.
</li>
<li class="listitem">
Fix support for changes new to MPIR-3.0, see <a href="https://svn.boost.org/trac/boost/ticket/13124" target="_top">#13124</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h17"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_3_2_boost_1_65"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_3_2_boost_1_65">Multiprecision-2.3.2
(Boost-1.65)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Updated expression templates to store arithmetic literals directly in
the expression template to prevent dangling references, see <a href="https://github.com/boostorg/multiprecision/issues/19" target="_top">#19</a>.
</li>
<li class="listitem">
Fix various issues with huge values and overflow in the trig, pow and
exp functions, see <a href="https://github.com/boostorg/multiprecision/issues/24" target="_top">#24</a>.
</li>
<li class="listitem">
Fix error handling of checked cpp_int multiply that could cause some
overflows to be missed.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h18"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_3_1_boost_1_64"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_3_1_boost_1_64">Multiprecision-2.3.1
(Boost-1.64)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
In <code class="computeroutput"><span class="identifier">cpp_bin_float</span></code> prevent
double rounding when converting to a denormalized float. See <a href="https://svn.boost.org/trac/boost/ticket/12527" target="_top">#12527</a>.
</li>
<li class="listitem">
Fix bug in integer sqrt for very small integers. See <a href="https://svn.boost.org/trac/boost/ticket/12559" target="_top">#12559</a>.
</li>
<li class="listitem">
Fix conversion to signed-zero in <code class="computeroutput"><span class="identifier">cpp_bin_float</span></code>.
</li>
<li class="listitem">
Change <code class="computeroutput"><span class="identifier">cpp_bin_float</span></code>
rounding code to round at arbitrary location so we can use it for conversions,
see <a href="https://svn.boost.org/trac/boost/ticket/12527" target="_top">#12527</a>.
</li>
<li class="listitem">
Improve performance of 128-bit bit-scan operations.
</li>
<li class="listitem">
Fix subtraction of very small quantities in <code class="computeroutput"><span class="identifier">cpp_bin_float</span></code>.
See: <a href="https://svn.boost.org/trac/boost/ticket/12580" target="_top">#12580</a>.
</li>
<li class="listitem">
Bring error handling into line with C99 Annex F. See <a href="https://svn.boost.org/trac/boost/ticket/12581" target="_top">#12581</a>.
</li>
<li class="listitem">
Fix bitwise export of trivial <code class="computeroutput"><span class="identifier">cpp_int</span></code>'s,
see <a href="https://svn.boost.org/trac/boost/ticket/12627" target="_top">#12627</a>.
</li>
<li class="listitem">
Fix <code class="computeroutput"><span class="identifier">ilogb</span></code> (and code that
uses it) to consistently return the smallest value of the exponent type
when the argument is zero, see <a href="https://svn.boost.org/trac/boost/ticket/12625" target="_top">#12625</a>.
</li>
<li class="listitem">
Allow conversion from <code class="computeroutput"><a class="link" href="../tut/floats/float128.html" title="float128">float128</a></code>
to <code class="computeroutput"><span class="identifier">cpp_bin_float</span></code>.
</li>
<li class="listitem">
Fix bug in left shift of <code class="computeroutput"><span class="identifier">cpp_int</span></code>
which would result in bit-loss, see <a href="https://svn.boost.org/trac/boost/ticket/12790" target="_top">#12790</a>.
</li>
<li class="listitem">
Fixed bugs in bounded but variable precision <code class="computeroutput"><span class="identifier">cpp_int</span></code>'s
caused by over-aggressive constexpr optimization, see <a href="https://svn.boost.org/trac/boost/ticket/12798" target="_top">#12798</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h19"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_3_0_boost_1_63"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_3_0_boost_1_63">Multiprecision-2.3.0
(Boost-1.63)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Added support for all the C99 math functions.
</li>
<li class="listitem">
Extended generic-interconversions to handle narrowing cases as well,
changed convert_to member function and hence explicit conversion operators
to use the same conversion code as the explicit constructors.
</li>
<li class="listitem">
Fix IO stream parsing error, see <a href="https://svn.boost.org/trac/boost/ticket/12488" target="_top">#12488</a>.
</li>
<li class="listitem">
Make default constructed floating point types all zero for consistency,
see <a href="https://svn.boost.org/trac/boost/ticket/12500" target="_top">#12500</a>.
</li>
<li class="listitem">
Fix conversion of cpp_bin_float to float/double/long double when the
exponent value would overflow an int, see <a href="https://svn.boost.org/trac/boost/ticket/12512" target="_top">#12512</a>.
</li>
<li class="listitem">
Fix cpp_bin_float subtractions that yield signed-zeros, see <a href="https://svn.boost.org/trac/boost/ticket/12524" target="_top">#12524</a>.
</li>
<li class="listitem">
Fix ceil/trunc/round applied to cpp_bin_float and yielding a signed zero,
see <a href="https://svn.boost.org/trac/boost/ticket/12525" target="_top">#12525</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h20"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_8_boost_1_62"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_8_boost_1_62">Multiprecision-2.2.8
(Boost-1.62)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Added support for hashing via <code class="computeroutput"><span class="identifier">Boost</span><span class="special">.</span><span class="identifier">Hash</span></code>
or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">hash</span></code>.
</li>
<li class="listitem">
Fixed some arithmetic operations in cpp_bin_float and cpp_dec_float that
should generate a NaN, see <a href="https://svn.boost.org/trac/boost/ticket/12157" target="_top">#12157</a>.
</li>
<li class="listitem">
Prevent inadvertant instantiation of variable-precision <code class="computeroutput"><span class="identifier">mpfr_float_backend</span></code> with fixed allocation.
</li>
<li class="listitem">
Fixed division over/underflow in cpp_bin_float, see <a href="https://svn.boost.org/trac/boost/ticket/12167" target="_top">#12167</a>.
</li>
<li class="listitem">
Added support for signed-zeros throughout the library, including support
for <code class="computeroutput"><span class="identifier">signbit</span></code> and <code class="computeroutput"><span class="identifier">copysign</span></code>, mpfr, float128, and cpp_bin_float
types should now respect signed-zeros correctly.
</li>
<li class="listitem">
Fixed bug in conversion of cpp_bin_float infinities to double etc, see
<a href="https://svn.boost.org/trac/boost/ticket/12196" target="_top">#12196</a>.
</li>
<li class="listitem">
Fix add and subtract of cpp_bin_float when the exponents would overflow.,
see <a href="https://svn.boost.org/trac/boost/ticket/12198" target="_top">#12198</a>.
</li>
<li class="listitem">
Improve variable-precision support in mpfr and mpf backends, allow these
types to be used with Boost.Math.
</li>
<li class="listitem">
Fixed bug in subtraction of signed infinities in cpp_bin_float, see
<a href="https://svn.boost.org/trac/boost/ticket/12209" target="_top">#12209</a>.
</li>
<li class="listitem">
Fix result of sqrt(infinity) in cpp_bin_float (result should be infinity),
see <a href="https://svn.boost.org/trac/boost/ticket/12227" target="_top">#12227</a>.
</li>
<li class="listitem">
Added workaround in gmp.hpp for recent MPIR releases which are not quite
source-compatible with GMP on Windows x64.
</li>
<li class="listitem">
Allow <code class="computeroutput"><span class="identifier">cpp_int</span></code> code to
be used with /RTCc with MSVC.
</li>
<li class="listitem">
Fix conversion of <code class="computeroutput"><span class="identifier">cpp_int</span></code>
to signed integer when the result is INT_MIN, see <a href="https://svn.boost.org/trac/boost/ticket/12343" target="_top">#12343</a>.
</li>
<li class="listitem">
Update uBlas support to match latest uBlas code.
</li>
<li class="listitem">
Fix some errors present when building on big-endian machines (not all
<code class="computeroutput"><span class="identifier">cpp_int</span></code> constructors
are available on non-little-endian machines).
</li>
<li class="listitem">
Fix fencepost error in rational to float conversion routines, see <a href="https://svn.boost.org/trac/boost/ticket/12327" target="_top">#12327</a>.
</li>
<li class="listitem">
Fix some Oracle C++ compiler compatibility issues.
</li>
<li class="listitem">
Add modf support to complete C90 compatibility.
</li>
<li class="listitem">
Fix self assignment bug in expression template code for expressions such
as <code class="computeroutput"><span class="identifier">a</span> <span class="special">=</span>
<span class="identifier">a</span> <span class="special">*</span>
<span class="identifier">a</span> <span class="special">*</span>
<span class="identifier">a</span></code>, see <a href="https://svn.boost.org/trac/boost/ticket/12408" target="_top">#12408</a>.
</li>
<li class="listitem">
Fixed some compiler errors that occur when converting from <code class="computeroutput"><span class="identifier">cpp_int</span></code> to <code class="computeroutput"><span class="identifier">cpp_bin_float</span></code>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h21"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_7_boost_1_61"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_7_boost_1_61">Multiprecision-2.2.7
(Boost-1.61)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Fixed bug in stream input for integer types, see <a href="https://svn.boost.org/trac/boost/ticket/11857" target="_top">#11857</a>.
</li>
<li class="listitem">
Fixed some ambiguous conversions involving expression templates see
<a href="https://svn.boost.org/trac/boost/ticket/11922" target="_top">#11922</a>.
</li>
<li class="listitem">
Add expression template aware min/max overloads see <a href="https://svn.boost.org/trac/boost/ticket/11149" target="_top">#11149</a>.
</li>
<li class="listitem">
Fix bug in right shifting negative small integers in cpp_int see <a href="https://svn.boost.org/trac/boost/ticket/11999" target="_top">#11999</a>.
</li>
<li class="listitem">
Use memmove for bitshifts in cpp_int when possible see <a href="https://svn.boost.org/trac/boost/ticket/9233" target="_top">#9233</a>.
</li>
<li class="listitem">
Use memcpy for data import into cpp_int where possible, see <a href="https://svn.boost.org/trac/boost/ticket/9235" target="_top">#9235</a>.
</li>
<li class="listitem">
Changed <code class="computeroutput"><span class="identifier">cpp_bin_float</span><span class="special">.</span><span class="identifier">convert_to</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;()</span></code> to a function template rather than
proceding via <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">double</span></code>
to avoid double-rounding bug, see <a href="https://svn.boost.org/trac/boost/ticket/12039" target="_top">#12039</a>.
</li>
<li class="listitem">
Fixed conversions from NaNs and Infinities, see <a href="https://svn.boost.org/trac/boost/ticket/12112" target="_top">#12112</a>.
</li>
<li class="listitem">
Enabled better support for Clang on Windows.
</li>
<li class="listitem">
Fixed handling of NaNs and Infinities in basic arithmetic for cpp_dec_float
and cpp_bin_float, see <a href="https://svn.boost.org/trac/boost/ticket/12090" target="_top">#12090</a>.
</li>
<li class="listitem">
Fixed fencepost error in cpp_bin_float subtraction.
</li>
<li class="listitem">
Fixed double-rounding in conversion to float routines for cpp_bin_float,
see <a href="https://svn.boost.org/trac/boost/ticket/12039" target="_top">#12039</a>.
</li>
<li class="listitem">
Make float128 denorm aware, see <a href="https://svn.boost.org/trac/boost/ticket/12075" target="_top">#12075</a>.
</li>
<li class="listitem">
Allow the library and tests to be used without exception handling support,
see <a href="https://svn.boost.org/trac/boost/ticket/12070" target="_top">#12070</a>.
</li>
<li class="listitem">
Fixed buggy comparison operator overloads for boost::rational.
</li>
<li class="listitem">
Added some workarounds for Oracle C++.
</li>
<li class="listitem">
Fixed some missing typecasts for cases where cpp_int's limb_type is wider
than unsigned.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h22"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_6_boost_1_60"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_6_boost_1_60">Multiprecision-2.2.6
(Boost-1.60)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Fixed result of Miller Rabin primality test for value 2, see <a href="https://svn.boost.org/trac/boost/ticket/11495" target="_top">#11495</a>.
</li>
<li class="listitem">
Improved initialization of cpp_int from very large strings of hex or
octal digits, see <a href="https://svn.boost.org/trac/boost/ticket/11590" target="_top">#11590</a>.
</li>
<li class="listitem">
Fixed fmod behaviour for negative divisors, see <a href="https://svn.boost.org/trac/boost/ticket/11641" target="_top">#11641</a>.
</li>
<li class="listitem">
Fixed infinite division loop in cpp_int special case, see <a href="https://svn.boost.org/trac/boost/ticket/11648" target="_top">#11648</a>.
</li>
<li class="listitem">
Patched missing return statement in <a href="https://svn.boost.org/trac/boost/ticket/11762" target="_top">#11762</a>.
</li>
<li class="listitem">
Fixed mixed mode arithmetic compiler error in <a href="https://svn.boost.org/trac/boost/ticket/11764" target="_top">#11764</a>.
</li>
<li class="listitem">
Fixed over-aggressive use of noexcept in <a href="https://svn.boost.org/trac/boost/ticket/11826" target="_top">#11826</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h23"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_5_boost_1_59"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_5_boost_1_59">Multiprecision-2.2.5
(Boost-1.59)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Depricated boost/multiprecision/random.hpp as it's no longer needed,
updated random examples to match.
</li>
<li class="listitem">
Fixed a bug in <code class="computeroutput"><span class="identifier">cpp_int</span></code>
right shift operator when shifting negative values - semantics now gives
the same values as shifting 2's compliment integers, though not the same
bit pattern.
</li>
<li class="listitem">
Fixed support for GCC-4.6.4 in C++0x mode by disabling conditional noexcept
suppoprt for that compiler see <a href="https://svn.boost.org/trac/boost/ticket/11402" target="_top">#11402</a>.
</li>
<li class="listitem">
Suppressed numerous compiler warnings.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h24"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_4_boost_1_58"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_4_boost_1_58">Multiprecision-2.2.4
(Boost-1.58)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Changed <code class="computeroutput"><span class="identifier">frexp</span></code> to always
be non-expression template generating, see: <a href="https://svn.boost.org/trac/boost/ticket/10993" target="_top">10993</a>.
</li>
<li class="listitem">
Improved support of cpp_dec_float on Cygwin and other platforms with
missing long double support, see <a href="https://svn.boost.org/trac/boost/ticket/10924" target="_top">10924</a>.
</li>
<li class="listitem">
Improved noexcept support and added some more tests, see <a href="https://svn.boost.org/trac/boost/ticket/10990" target="_top">10990</a>.
</li>
<li class="listitem">
Various workarounds applied for Intel-15.0 and Solaris-12.4 compilers.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h25"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_3_boost_1_57"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_3_boost_1_57">Multiprecision-2.2.3
(Boost-1.57)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Changed rational to float conversions to exactly round to nearest, see
<a href="https://svn.boost.org/trac/boost/ticket/10085" target="_top">10085</a>.
</li>
<li class="listitem">
Added improved generic float to rational conversions.
</li>
<li class="listitem">
Fixed rare bug in exponent function for <a class="link" href="../tut/floats/cpp_bin_float.html" title="cpp_bin_float">cpp_bin_float</a>.
</li>
<li class="listitem">
Fixed various minor documentation issues.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h26"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_2_boost_1_56"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_2_boost_1_56">Multiprecision-2.2.2
(Boost-1.56)</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Change floating-point to rational conversions to be implicit, see <a href="https://svn.boost.org/trac/boost/ticket/10082" target="_top">10082</a>.
</li>
<li class="listitem">
Fix definition of checked_cpp_rational typedef.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h27"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_1"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_1">Multiprecision-2.2.1</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
Fix bug in assignment from string in cpp_int, see <a href="https://svn.boost.org/trac/boost/ticket/9936" target="_top">9936</a>.
</li></ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h28"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.multiprecision_2_2_0"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.multiprecision_2_2_0">Multiprecision-2.2.0</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Moved to Boost.Multiprecision specific version number - we have one breaking
change in Boost-1.54 which makes this major version 2, plus two releases
with new features since then.
</li>
<li class="listitem">
Added new <a class="link" href="../tut/floats/cpp_bin_float.html" title="cpp_bin_float">cpp_bin_float</a>
backend for binary floating-point.
</li>
<li class="listitem">
Added MSVC-specific #include for compiler intrinsics, see <a href="https://svn.boost.org/trac/boost/ticket/9336" target="_top">9336</a>.
</li>
<li class="listitem">
Fixed various typos in docs, see <a href="https://svn.boost.org/trac/boost/ticket/9432" target="_top">9432</a>.
</li>
<li class="listitem">
Fixed <a class="link" href="../tut/rational/gmp_rational.html" title="gmp_rational">gmp_rational</a>
to allow move-copy from an already copied-from object, see <a href="https://svn.boost.org/trac/boost/ticket/9497" target="_top">9497</a>.
</li>
<li class="listitem">
Added list of values for numeric_limits.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h29"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.boost_1_55"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.boost_1_55">Boost-1.55</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Added support for Boost.Serialization.
</li>
<li class="listitem">
Suppressed some GCC warnings. See <a href="https://svn.boost.org/trac/boost/ticket/8872" target="_top">8872</a>.
</li>
<li class="listitem">
Fixed bug in pow for large integer arguments. See <a href="https://svn.boost.org/trac/boost/ticket/8809" target="_top">8809</a>.
</li>
<li class="listitem">
Fixed bug in pow for calculation of 0<sup>N</sup>. See <a href="https://svn.boost.org/trac/boost/ticket/8798" target="_top">8798</a>.
</li>
<li class="listitem">
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 <a href="https://svn.boost.org/trac/boost/ticket/8745" target="_top">8745</a>.
</li>
<li class="listitem">
Fixed bug in cpp_int that causes left shift to fail when a fixed precision
type would overflow. See <a href="https://svn.boost.org/trac/boost/ticket/8741" target="_top">8741</a>.
</li>
<li class="listitem">
Fixed some cosmetic warnings from cpp_int. See <a href="https://svn.boost.org/trac/boost/ticket/8748" target="_top">8748</a>.
</li>
<li class="listitem">
Fixed calls to functions which are required to be macros in C99. See
<a href="https://svn.boost.org/trac/boost/ticket/8732" target="_top">8732</a>.
</li>
<li class="listitem">
Fixed bug that causes construction from INT_MIN, LONG_MIN etc to fail
in cpp_int. See <a href="https://svn.boost.org/trac/boost/ticket/8711" target="_top">8711</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h30"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.1_54"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.1_54">1.54</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<span class="bold"><strong>Breaking change</strong></span> renamed <code class="computeroutput"><span class="identifier">rational_adapter</span></code> to <code class="computeroutput"><span class="identifier">rational_adaptor</span></code>.
</li>
<li class="listitem">
Add support for <a href="http://perso.ens-lyon.fr/nathalie.revol/software.html" target="_top">MPFI</a>.
</li>
<li class="listitem">
Add logged_adaptor.
</li>
<li class="listitem">
Add support for 128-bit floats via GCC's <code class="computeroutput"><span class="identifier">__float128</span></code>
or Intel's <code class="computeroutput"><span class="identifier">_Quad</span></code> data
types.
</li>
<li class="listitem">
Add support for user-defined literals in cpp_int, improve <code class="computeroutput"><span class="keyword">constexpr</span></code> support.
</li>
<li class="listitem">
Fixed bug in integer division of <code class="computeroutput"><span class="identifier">cpp_int</span></code>
that results in incorrect sign of <code class="computeroutput"><span class="identifier">cpp_int</span></code>
when both arguments are small enough to fit in a <code class="computeroutput"><span class="identifier">double_limb_type</span></code>.
See <a href="https://svn.boost.org/trac/boost/ticket/8126" target="_top">8126</a>.
</li>
<li class="listitem">
Fixed bug in subtraction of a single limb in <code class="computeroutput"><span class="identifier">cpp_int</span></code>
that results in incorrect value when the result should have a 0 in the
last limb: <a href="https://svn.boost.org/trac/boost/ticket/8133" target="_top">8133</a>.
</li>
<li class="listitem">
Fixed bug in <code class="computeroutput"><span class="identifier">cpp_int</span></code>
where division of 0 by something doesn't get zero in the result: <a href="https://svn.boost.org/trac/boost/ticket/8160" target="_top">8160</a>.
</li>
<li class="listitem">
Fixed bug in some transcendental functions that caused incorrect return
values when variables are reused, for example with <code class="computeroutput"><span class="identifier">a</span>
<span class="special">=</span> <span class="identifier">pow</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span></code>. See <a href="https://svn.boost.org/trac/boost/ticket/8326" target="_top">8326</a>.
</li>
<li class="listitem">
Fixed some assignment operations in the mpfr and gmp backends to be safe
if the target has been moved from: <a href="https://svn.boost.org/trac/boost/ticket/8326" target="_top">8667</a>.
</li>
<li class="listitem">
Fixed bug in <code class="computeroutput"><span class="identifier">cpp_int</span></code>
that gives incorrect answer for 0%N for large N: <a href="https://svn.boost.org/trac/boost/ticket/8670" target="_top">8670</a>.
</li>
<li class="listitem">
Fixed set_precision in mpfr backend so it doesn't trample over an existing
value: <a href="https://svn.boost.org/trac/boost/ticket/8692" target="_top">8692</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h31"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.1_53"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.1_53">1.53</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
First Release.
</li>
<li class="listitem">
Fix bug in <a href="https://svn.boost.org/trac/boost/ticket/7878" target="_top">cpp_int
division</a>.
</li>
<li class="listitem">
Fix issue <a href="https://svn.boost.org/trac/boost/ticket/7806" target="_top">#7806</a>.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h32"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.post_review_changes"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.post_review_changes">Post
review changes</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Non-expression template operators further optimised with rvalue reference
support.
</li>
<li class="listitem">
Many functions made <code class="computeroutput"><span class="identifier">constexp</span></code>.
</li>
<li class="listitem">
Differentiate between explicit and implicit conversions in the number
constructor.
</li>
<li class="listitem">
Removed "mp_" prefix from types.
</li>
<li class="listitem">
Allowed mixed precision arithmetic.
</li>
<li class="listitem">
Changed ExpressionTemplates parameter to class <code class="computeroutput"><span class="identifier">number</span></code>
to use enumerated values rather than true/false.
</li>
<li class="listitem">
Changed ExpressionTemplate parameter default value to use a traits class
so that the default value depends on the backend used.
</li>
<li class="listitem">
Added support for fused-multiply-add/subtract with GMP support.
</li>
<li class="listitem">
Tweaked expression template unpacking to use fewer temporaries when the
LHS also appears in the RHS.
</li>
<li class="listitem">
Refactored <code class="computeroutput"><span class="identifier">cpp_int_backend</span></code>
based on review comments with new template parameter structure.
</li>
<li class="listitem">
Added additional template parameter to <code class="computeroutput"><span class="identifier">mpfr_float_backend</span></code>
to allow stack-based allocation.
</li>
<li class="listitem">
Added section on mixed precision arithmetic, and added support for operations
yielding a higher precision result than either of the arguments.
</li>
<li class="listitem">
Added overloads of integer-specific functions for <a href="https://en.cppreference.com/w/cpp/language/types" target="_top">fundamental
(built-in)</a> integer types.
</li>
</ul></div>
<h5>
<a name="boost_multiprecision.map.hist.h33"></a>
<span class="phrase"><a name="boost_multiprecision.map.hist.pre_review_history"></a></span><a class="link" href="hist.html#boost_multiprecision.map.hist.pre_review_history">Pre-review
history</a>
</h5>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
2011-2012, John Maddock adds an expression template enabled front-end
to Christopher's code, and adds support for other backends.
</li>
<li class="listitem">
2011, Christopher Kormanyos publishes the decimal floating-point code
under the Boost Software Licence. The code is published as: <a href="http://doi.acm.org/10.1145/1916461.1916469" target="_top">"Algorithm
910: A Portable C++ Multiple-Precision System for Special-Function Calculations"</a>,
in ACM TOMS, {VOL 37, ISSUE 4, (February 2011)} (C) ACM, 2011.
</li>
<li class="listitem">
2002-2011, Christopher Kormanyos develops the all C++ decimal arithmetic
floating-point code.
</li>
</ul></div>
</div>
<div class="copyright-footer">Copyright © 2002-2020 John
Maddock and Christopher Kormanyos<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div>
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