Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   config.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   08.03.2007
Chris@16:  *
Chris@16:  * \brief  This header is the Boost.Log library implementation, see the library documentation
Chris@16:  *         at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html. In this file
Chris@16:  *         internal configuration macros are defined.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_DETAIL_CONFIG_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_DETAIL_CONFIG_HPP_INCLUDED_
Chris@16: 
Chris@16: // This check must be before any system headers are included, or __MSVCRT_VERSION__ may get defined to 0x0600
Chris@16: #if defined(__MINGW32__) && !defined(__MSVCRT_VERSION__)
Chris@16: // Target MinGW headers to at least MSVC 7.0 runtime by default. This will enable some useful functions.
Chris@16: #define __MSVCRT_VERSION__ 0x0700
Chris@16: #endif
Chris@16: 
Chris@16: #include <limits.h> // To bring in libc macros
Chris@16: #include <boost/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_NO_RTTI)
Chris@16: #   error Boost.Log: RTTI is required by the library
Chris@16: #endif
Chris@16: 
Chris@101: #if defined(_MSC_VER) && _MSC_VER >= 1600
Chris@101: #   define BOOST_LOG_HAS_PRAGMA_DETECT_MISMATCH
Chris@101: #endif
Chris@101: 
Chris@101: #if defined(BOOST_LOG_HAS_PRAGMA_DETECT_MISMATCH)
Chris@101: #include <boost/preprocessor/stringize.hpp>
Chris@101: #endif
Chris@101: 
Chris@16: #if !defined(BOOST_WINDOWS)
Chris@16: #   ifndef BOOST_LOG_WITHOUT_DEBUG_OUTPUT
Chris@16: #       define BOOST_LOG_WITHOUT_DEBUG_OUTPUT
Chris@16: #   endif
Chris@16: #   ifndef BOOST_LOG_WITHOUT_EVENT_LOG
Chris@16: #       define BOOST_LOG_WITHOUT_EVENT_LOG
Chris@16: #   endif
Chris@16: #endif
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_MSVC)
Chris@16:     // For some reason MSVC 9.0 fails to link the library if static integral constants are defined in cpp
Chris@16: #   define BOOST_LOG_BROKEN_STATIC_CONSTANTS_LINKAGE
Chris@16: #   if _MSC_VER <= 1310
Chris@16:         // MSVC 7.1 sometimes fails to match out-of-class template function definitions with
Chris@16:         // their declarations if the return type or arguments of the functions involve typename keyword
Chris@16:         // and depend on the template parameters.
Chris@16: #       define BOOST_LOG_BROKEN_TEMPLATE_DEFINITION_MATCHING
Chris@16: #   endif
Chris@16: #   if _MSC_VER <= 1400
Chris@16:         // Older MSVC versions reject friend declarations for class template specializations
Chris@16: #       define BOOST_LOG_BROKEN_FRIEND_TEMPLATE_SPECIALIZATIONS
Chris@16: #   endif
Chris@16: #   if _MSC_VER <= 1600
Chris@16:         // MSVC up to 10.0 attempts to invoke copy constructor when initializing a const reference from rvalue returned from a function.
Chris@16:         // This fails when the returned value cannot be copied (only moved):
Chris@16:         //
Chris@16:         // class base {};
Chris@16:         // class derived : public base { BOOST_MOVABLE_BUT_NOT_COPYABLE(derived) };
Chris@16:         // derived foo();
Chris@16:         // base const& var = foo(); // attempts to call copy constructor of derived
Chris@16: #       define BOOST_LOG_BROKEN_REFERENCE_FROM_RVALUE_INIT
Chris@16: #   endif
Chris@16: #   if !defined(_STLPORT_VERSION)
Chris@16:         // MSVC 9.0 mandates packaging of STL classes, which apparently affects alignment and
Chris@16:         // makes alignment_of< T >::value no longer be a power of 2 for types that derive from STL classes.
Chris@16:         // This breaks type_with_alignment and everything that relies on it.
Chris@16:         // This doesn't happen with non-native STLs, such as STLPort. Strangely, this doesn't show with
Chris@16:         // STL classes themselves or most of the user-defined derived classes.
Chris@16:         // Not sure if that happens with other MSVC versions.
Chris@16:         // See: http://svn.boost.org/trac/boost/ticket/1946
Chris@16: #       define BOOST_LOG_BROKEN_STL_ALIGNMENT
Chris@16: #   endif
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_INTEL) || defined(__SUNPRO_CC)
Chris@16:     // Intel compiler and Sun Studio 12.3 have problems with friend declarations for nested class templates
Chris@16: #   define BOOST_LOG_NO_MEMBER_TEMPLATE_FRIENDS
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_MSVC) && BOOST_MSVC <= 1600
Chris@16:     // MSVC cannot interpret constant expressions in certain contexts, such as non-type template parameters
Chris@16: #   define BOOST_LOG_BROKEN_CONSTANT_EXPRESSIONS
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(__CYGWIN__)
Chris@16:     // Boost.ASIO is broken on Cygwin
Chris@16: #   define BOOST_LOG_NO_ASIO
Chris@16: #endif
Chris@16: 
Chris@16: #if !defined(BOOST_LOG_USE_NATIVE_SYSLOG) && defined(BOOST_LOG_NO_ASIO)
Chris@16: #   ifndef BOOST_LOG_WITHOUT_SYSLOG
Chris@16: #       define BOOST_LOG_WITHOUT_SYSLOG
Chris@16: #   endif
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(__GNUC__) && (__GNUC__ == 4 && __GNUC_MINOR__ <= 2)
Chris@16:     // GCC 4.1 and 4.2 have buggy anonymous namespaces support, which interferes with symbol linkage
Chris@16: #   define BOOST_LOG_ANONYMOUS_NAMESPACE namespace anonymous {} using namespace anonymous; namespace anonymous
Chris@16: #else
Chris@16: #   define BOOST_LOG_ANONYMOUS_NAMESPACE namespace
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || (defined(__GNUC__) && (__GNUC__ == 4 && __GNUC_MINOR__ <= 6))
Chris@16: // GCC up to 4.6 (inclusively) did not support expanding template argument packs into non-variadic template arguments
Chris@16: #define BOOST_LOG_NO_CXX11_ARG_PACKS_TO_NON_VARIADIC_ARGS_EXPANSION
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #   define BOOST_LOG_NO_VTABLE __declspec(novtable)
Chris@16: #elif defined(__GNUC__)
Chris@16: #   define BOOST_LOG_NO_VTABLE
Chris@16: #else
Chris@16: #   define BOOST_LOG_NO_VTABLE
Chris@16: #endif
Chris@16: 
Chris@16: // An MS-like compilers' extension that allows to optimize away the needless code
Chris@16: #if defined(_MSC_VER)
Chris@16: #   define BOOST_LOG_ASSUME(expr) __assume(expr)
Chris@16: #else
Chris@16: #   define BOOST_LOG_ASSUME(expr)
Chris@16: #endif
Chris@16: 
Chris@16: // The statement marking unreachable branches of code to avoid warnings
Chris@16: #if defined(BOOST_CLANG)
Chris@16: #   if __has_builtin(__builtin_unreachable)
Chris@16: #       define BOOST_LOG_UNREACHABLE() __builtin_unreachable()
Chris@16: #   endif
Chris@16: #elif defined(__GNUC__)
Chris@16: #   if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
Chris@16: #       define BOOST_LOG_UNREACHABLE() __builtin_unreachable()
Chris@16: #   endif
Chris@16: #elif defined(_MSC_VER)
Chris@16: #   define BOOST_LOG_UNREACHABLE() __assume(0)
Chris@16: #endif
Chris@16: #if !defined(BOOST_LOG_UNREACHABLE)
Chris@16: #   define BOOST_LOG_UNREACHABLE()
Chris@101: #   define BOOST_LOG_UNREACHABLE_RETURN(r) return r
Chris@101: #else
Chris@101: #   define BOOST_LOG_UNREACHABLE_RETURN(r) BOOST_LOG_UNREACHABLE()
Chris@16: #endif
Chris@16: 
Chris@16: // Some compilers support a special attribute that shows that a function won't return
Chris@16: #if defined(__GNUC__) || (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x590)
Chris@16:     // GCC and Sun Studio 12 support attribute syntax
Chris@16: #   define BOOST_LOG_NORETURN __attribute__((noreturn))
Chris@16: #elif defined (_MSC_VER)
Chris@16:     // Microsoft-compatible compilers go here
Chris@16: #   define BOOST_LOG_NORETURN __declspec(noreturn)
Chris@16: #else
Chris@16:     // The rest compilers might emit bogus warnings about missing return statements
Chris@16:     // in functions with non-void return types when throw_exception is used.
Chris@16: #   define BOOST_LOG_NORETURN
Chris@16: #endif
Chris@16: 
Chris@16: #if !defined(BOOST_LOG_BUILDING_THE_LIB)
Chris@16: 
Chris@16: // Detect if we're dealing with dll
Chris@16: #   if defined(BOOST_LOG_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)
Chris@16: #        define BOOST_LOG_DLL
Chris@16: #   endif
Chris@16: 
Chris@16: #   if defined(BOOST_LOG_DLL)
Chris@16: #       if defined(BOOST_SYMBOL_IMPORT)
Chris@16: #           define BOOST_LOG_API BOOST_SYMBOL_IMPORT
Chris@16: #       elif defined(BOOST_HAS_DECLSPEC)
Chris@16: #           define BOOST_LOG_API __declspec(dllimport)
Chris@16: #       endif
Chris@16: #   endif
Chris@16: #   ifndef BOOST_LOG_API
Chris@16: #       define BOOST_LOG_API
Chris@16: #   endif
Chris@16: //
Chris@16: // Automatically link to the correct build variant where possible.
Chris@16: //
Chris@16: #   if !defined(BOOST_ALL_NO_LIB)
Chris@16: #       if !defined(BOOST_LOG_NO_LIB)
Chris@16: #          define BOOST_LIB_NAME boost_log
Chris@16: #          if defined(BOOST_LOG_DLL)
Chris@16: #              define BOOST_DYN_LINK
Chris@16: #          endif
Chris@16: #          include <boost/config/auto_link.hpp>
Chris@16: #       endif
Chris@16:         // In static-library builds compilers ignore auto-link comments from Boost.Log binary to
Chris@16:         // other Boost libraries. We explicitly add comments here for other libraries.
Chris@16:         // In dynamic-library builds this is not needed.
Chris@16: #       if !defined(BOOST_LOG_DLL)
Chris@16: #           include <boost/system/config.hpp>
Chris@16: #           include <boost/filesystem/config.hpp>
Chris@16: #           if !defined(BOOST_DATE_TIME_NO_LIB) && !defined(BOOST_DATE_TIME_SOURCE)
Chris@16: #               define BOOST_LIB_NAME boost_date_time
Chris@16: #               if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_DATE_TIME_DYN_LINK)
Chris@16: #                   define BOOST_DYN_LINK
Chris@16: #               endif
Chris@16: #               include <boost/config/auto_link.hpp>
Chris@16: #           endif
Chris@16:             // Boost.Thread's config is included below, if needed
Chris@16: #       endif
Chris@16: #   endif  // auto-linking disabled
Chris@16: 
Chris@16: #else // !defined(BOOST_LOG_BUILDING_THE_LIB)
Chris@16: 
Chris@16: #   if defined(BOOST_LOG_DLL)
Chris@16: #       if defined(BOOST_SYMBOL_EXPORT)
Chris@16: #           define BOOST_LOG_API BOOST_SYMBOL_EXPORT
Chris@16: #       elif defined(BOOST_HAS_DECLSPEC)
Chris@16: #           define BOOST_LOG_API __declspec(dllexport)
Chris@16: #       endif
Chris@16: #   endif
Chris@16: #   ifndef BOOST_LOG_API
Chris@16: #       define BOOST_LOG_API BOOST_SYMBOL_VISIBLE
Chris@16: #   endif
Chris@16: 
Chris@16: #endif // !defined(BOOST_LOG_BUILDING_THE_LIB)
Chris@16: 
Chris@16: // By default we provide support for both char and wchar_t
Chris@16: #if !defined(BOOST_LOG_WITHOUT_CHAR)
Chris@16: #   define BOOST_LOG_USE_CHAR
Chris@16: #endif
Chris@16: #if !defined(BOOST_LOG_WITHOUT_WCHAR_T)
Chris@16: #   define BOOST_LOG_USE_WCHAR_T
Chris@16: #endif
Chris@16: 
Chris@16: #if !defined(BOOST_LOG_DOXYGEN_PASS)
Chris@16:     // Check if multithreading is supported
Chris@16: #   if !defined(BOOST_LOG_NO_THREADS) && !defined(BOOST_HAS_THREADS)
Chris@16: #       define BOOST_LOG_NO_THREADS
Chris@16: #   endif // !defined(BOOST_LOG_NO_THREADS) && !defined(BOOST_HAS_THREADS)
Chris@16: #endif // !defined(BOOST_LOG_DOXYGEN_PASS)
Chris@16: 
Chris@16: #if !defined(BOOST_LOG_NO_THREADS)
Chris@16:     // We need this header to (i) enable auto-linking with Boost.Thread and
Chris@16:     // (ii) to bring in configuration macros of Boost.Thread.
Chris@16: #   include <boost/thread/detail/config.hpp>
Chris@16: #endif // !defined(BOOST_LOG_NO_THREADS)
Chris@16: 
Chris@16: #if !defined(BOOST_LOG_NO_THREADS)
Chris@16: #   define BOOST_LOG_EXPR_IF_MT(expr) expr
Chris@16: #else
Chris@16: #   undef BOOST_LOG_USE_COMPILER_TLS
Chris@16: #   define BOOST_LOG_EXPR_IF_MT(expr)
Chris@16: #endif // !defined(BOOST_LOG_NO_THREADS)
Chris@16: 
Chris@16: #if defined(BOOST_LOG_USE_COMPILER_TLS)
Chris@16: #   if defined(__GNUC__) || defined(__SUNPRO_CC)
Chris@16: #       define BOOST_LOG_TLS __thread
Chris@16: #   elif defined(BOOST_MSVC)
Chris@16: #       define BOOST_LOG_TLS __declspec(thread)
Chris@16: #   else
Chris@16: #       undef BOOST_LOG_USE_COMPILER_TLS
Chris@16: #   endif
Chris@16: #endif // defined(BOOST_LOG_USE_COMPILER_TLS)
Chris@16: 
Chris@101: #ifndef BOOST_LOG_CPU_CACHE_LINE_SIZE
Chris@101: //! The macro defines the CPU cache line size for the target architecture. This is mostly used for optimization.
Chris@101: #define BOOST_LOG_CPU_CACHE_LINE_SIZE 64
Chris@101: #endif
Chris@101: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: // Setup namespace name
Chris@16: #if !defined(BOOST_LOG_DOXYGEN_PASS)
Chris@16: #   if defined(BOOST_LOG_DLL)
Chris@16: #       if defined(BOOST_LOG_NO_THREADS)
Chris@16: #           define BOOST_LOG_VERSION_NAMESPACE v2_st
Chris@16: #       else
Chris@16: #           if defined(BOOST_THREAD_PLATFORM_PTHREAD)
Chris@16: #               define BOOST_LOG_VERSION_NAMESPACE v2_mt_posix
Chris@16: #           elif defined(BOOST_THREAD_PLATFORM_WIN32)
Chris@16: #               if defined(BOOST_LOG_USE_WINNT6_API)
Chris@16: #                   define BOOST_LOG_VERSION_NAMESPACE v2_mt_nt6
Chris@16: #               else
Chris@16: #                   define BOOST_LOG_VERSION_NAMESPACE v2_mt_nt5
Chris@16: #               endif // defined(BOOST_LOG_USE_WINNT6_API)
Chris@16: #           else
Chris@16: #               define BOOST_LOG_VERSION_NAMESPACE v2_mt
Chris@16: #           endif
Chris@16: #       endif // defined(BOOST_LOG_NO_THREADS)
Chris@16: #   else
Chris@16: #       if defined(BOOST_LOG_NO_THREADS)
Chris@16: #           define BOOST_LOG_VERSION_NAMESPACE v2s_st
Chris@16: #       else
Chris@16: #           if defined(BOOST_THREAD_PLATFORM_PTHREAD)
Chris@16: #               define BOOST_LOG_VERSION_NAMESPACE v2s_mt_posix
Chris@16: #           elif defined(BOOST_THREAD_PLATFORM_WIN32)
Chris@16: #               if defined(BOOST_LOG_USE_WINNT6_API)
Chris@16: #                   define BOOST_LOG_VERSION_NAMESPACE v2s_mt_nt6
Chris@16: #               else
Chris@16: #                   define BOOST_LOG_VERSION_NAMESPACE v2s_mt_nt5
Chris@16: #               endif // defined(BOOST_LOG_USE_WINNT6_API)
Chris@16: #           else
Chris@16: #               define BOOST_LOG_VERSION_NAMESPACE v2s_mt
Chris@16: #           endif
Chris@16: #       endif // defined(BOOST_LOG_NO_THREADS)
Chris@16: #   endif // defined(BOOST_LOG_DLL)
Chris@16: 
Chris@16: 
Chris@16: namespace log {
Chris@16: 
Chris@16: #   if !defined(BOOST_NO_CXX11_INLINE_NAMESPACES)
Chris@16: 
Chris@16: inline namespace BOOST_LOG_VERSION_NAMESPACE {}
Chris@16: }
Chris@16: 
Chris@16: #       define BOOST_LOG_OPEN_NAMESPACE namespace log { inline namespace BOOST_LOG_VERSION_NAMESPACE {
Chris@16: #       define BOOST_LOG_CLOSE_NAMESPACE }}
Chris@16: 
Chris@16: #   else
Chris@16: 
Chris@16: namespace BOOST_LOG_VERSION_NAMESPACE {}
Chris@16: 
Chris@16: using namespace BOOST_LOG_VERSION_NAMESPACE
Chris@16: #       if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) && !defined(__clang__)
Chris@16: __attribute__((__strong__))
Chris@16: #       endif
Chris@16: ;
Chris@16: 
Chris@16: }
Chris@16: 
Chris@16: #       define BOOST_LOG_OPEN_NAMESPACE namespace log { namespace BOOST_LOG_VERSION_NAMESPACE {
Chris@16: #       define BOOST_LOG_CLOSE_NAMESPACE }}
Chris@16: #   endif
Chris@16: 
Chris@16: #else // !defined(BOOST_LOG_DOXYGEN_PASS)
Chris@16: 
Chris@16: namespace log {}
Chris@16: #   define BOOST_LOG_OPEN_NAMESPACE namespace log {
Chris@16: #   define BOOST_LOG_CLOSE_NAMESPACE }
Chris@16: 
Chris@16: #endif // !defined(BOOST_LOG_DOXYGEN_PASS)
Chris@16: 
Chris@101: #if defined(BOOST_LOG_HAS_PRAGMA_DETECT_MISMATCH)
Chris@101: #pragma detect_mismatch("boost_log_abi", BOOST_PP_STRINGIZE(BOOST_LOG_VERSION_NAMESPACE))
Chris@101: #endif
Chris@101: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // BOOST_LOG_DETAIL_CONFIG_HPP_INCLUDED_