// // Copyright (c) 2009-2011 Artyom Beilis (Tonkikh) // // Distributed under the Boost Software License, Version 1.0. // https://www.boost.org/LICENSE_1_0.txt /*! \page status_of_cpp0x_characters_support Status of C++11 char16_t/char32_t support The support of C++11 \c char16_t and \c char32_t is experimental and is not intended to be used in production until various compiler/standard library flaws are fixed. Many recent C++ compilers provide decent support of C++11 characters, however often: -# The standard library does not install any std::locale::facets for this support so any attempt to format numbers using \c char16_t or \c char32_t streams would just fail. -# The standard library misses specialization for required \c char16_t/char32_t locale facets, so "std" backends is not build-able as essential symbols missing, also \c codecvt facet can't be created as well. \section status_of_cpp0x_characters_support_msvc Visual Studio MSVC provides all required facets since VS 2010 however: -# The standard library does not provide installations of std::locale::id for these facets in DLL so it is not usable with \c /MD, \c /MDd compiler flags and requires static link of the runtime library. -# \c char16_t and \c char32_t are not distinct types but rather aliases of unsigned short and unsigned types which contradicts to C++11 requirements making it impossible to write \c char16_t/char32_t to stream and causing multiple faults. If you want to build or test Boost.Locale with C++11 char16_t and char32_t support you should pass `define=BOOST_LOCALE_ENABLE_CHAR32_T define=BOOST_LOCALE_ENABLE_CHAR16_T` to `b2` during build and define `BOOST_LOCALE_ENABLE_CHAR32_T` and `BOOST_LOCALE_ENABLE_CHAR32_T` when using Boost.Locale */