C++20 removed argument type typedefs in standard function objects, which made
it impossible to deduce the attribute value type from the standard function
objects. This caused compilation errors with VS2022 in C++20 mode.
The _SCL_SECURE_NO_WARNINGS, _SCL_SECURE_NO_DEPRECATE,
_CRT_SECURE_NO_WARNINGS and _CRT_SECURE_NO_DEPRECATE macros need to be
defined for every compiler that uses MSVC C/C++ runtime, so instead of
duplicating these definitions in multiple places, define them for
Windows platform regardless of the compiler. In particular, they are
now defined for clang-cl.
Explicit specification of attribute value type is necessary when it cannot
be inferred from the function object type. With C++20 removing argument type
typedefs from standard function objects, like std::less, and compilers following
suit (e.g. future MSVC versions), it is better to update the example so that
it is compatible with future compilers.
Related to https://github.com/boostorg/log/issues/105.
The new example demostrates working with the settings container directly
and provides a more complete view on the library initialization.
Closes https://github.com/boostorg/log/issues/87.
The default filter/formatter factories will now be able to extract severity
level values of type boost::log::trivial::severity_level. For filters, this
is only supported for attributes with the "Severity" name.
Some tests pull in pthread rwlock and therefore need _XOPEN_SOURCE=600
or higher to compile. Added platform defines to tests and examples
for good measure.
For MinGW worked around Boost.Build error when BOOST_LOG_WITHOUT_EVENT_LOG
is defined.
This allows to have different file names when actively writing the log file
and when rotating. In particular, this solves the problem with appending
to the previous file, when the log files are also collected and are supposed
to have distincs names.
The example uses IPC queue operation_result as a namespace qualifier for
the values of the enum. This is allowed in C++11 and some compilers also allow
it in C++03. This is the preferred use of the enum values, so in the official
docs that kind of use is still displayed. For compatibility with C++03 though
an additional hidden code branch is added that refers to the constants without
qualification.
included into the size limit.
The max_size method on the stream buffer will now attempt to truncate
the attached string on the character boundary.
Fixed character boundary detection for multibyte encodings.
Clean up the overflow flag and the max size limit after the formatter
has completed.
Added a test for the max_size decorator.
Cleaned up some includes and reduced the dependency on Boost.Thread.
