Chris@16: // Copyright David Abrahams 2002.
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef WORKAROUND_DWA2002126_HPP
Chris@16: # define WORKAROUND_DWA2002126_HPP
Chris@16: 
Chris@16: // Compiler/library version workaround macro
Chris@16: //
Chris@16: // Usage:
Chris@16: //
Chris@16: //     #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
Chris@16: //        // workaround for eVC4 and VC6
Chris@16: //        ... // workaround code here
Chris@16: //     #endif
Chris@16: //
Chris@16: // When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the
Chris@16: // first argument must be undefined or expand to a numeric
Chris@16: // value. The above expands to:
Chris@16: //
Chris@16: //     (BOOST_MSVC) != 0 && (BOOST_MSVC) < 1300
Chris@16: //
Chris@16: // When used for workarounds that apply to the latest known version 
Chris@16: // and all earlier versions of a compiler, the following convention 
Chris@16: // should be observed:
Chris@16: //
Chris@16: //     #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1301))
Chris@16: //
Chris@16: // The version number in this case corresponds to the last version in
Chris@16: // which the workaround was known to have been required. When
Chris@16: // BOOST_DETECT_OUTDATED_WORKAROUNDS is not the defined, the macro
Chris@16: // BOOST_TESTED_AT(x) expands to "!= 0", which effectively activates
Chris@16: // the workaround for any version of the compiler. When
Chris@16: // BOOST_DETECT_OUTDATED_WORKAROUNDS is defined, a compiler warning or
Chris@16: // error will be issued if the compiler version exceeds the argument
Chris@16: // to BOOST_TESTED_AT().  This can be used to locate workarounds which
Chris@16: // may be obsoleted by newer versions.
Chris@16: 
Chris@16: # ifndef BOOST_STRICT_CONFIG
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: 
Chris@16: #ifndef __BORLANDC__
Chris@16: #define __BORLANDC___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __BORLANDC___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __CODEGEARC__
Chris@16: #define __CODEGEARC___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __CODEGEARC___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _MSC_VER
Chris@16: #define _MSC_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _MSC_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _MSC_FULL_VER
Chris@16: #define _MSC_FULL_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _MSC_FULL_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef BOOST_MSVC
Chris@16: #define BOOST_MSVC_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_MSVC_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef BOOST_MSVC_FULL_VER
Chris@16: #define BOOST_MSVC_FULL_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_MSVC_FULL_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __GNUC__
Chris@16: #define __GNUC___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __GNUC___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __GNUC_MINOR__
Chris@16: #define __GNUC_MINOR___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __GNUC_MINOR___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __GNUC_PATCHLEVEL__
Chris@16: #define __GNUC_PATCHLEVEL___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __GNUC_PATCHLEVEL___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __IBMCPP__
Chris@16: #define __IBMCPP___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __IBMCPP___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __SUNPRO_CC
Chris@16: #define __SUNPRO_CC_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __SUNPRO_CC_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __DECCXX_VER
Chris@16: #define __DECCXX_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __DECCXX_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __MWERKS__
Chris@16: #define __MWERKS___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __MWERKS___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __EDG__
Chris@16: #define __EDG___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __EDG___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __EDG_VERSION__
Chris@16: #define __EDG_VERSION___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __EDG_VERSION___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __HP_aCC
Chris@16: #define __HP_aCC_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __HP_aCC_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __hpxstd98
Chris@16: #define __hpxstd98_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __hpxstd98_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _CRAYC
Chris@16: #define _CRAYC_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _CRAYC_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __DMC__
Chris@16: #define __DMC___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __DMC___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef MPW_CPLUS
Chris@16: #define MPW_CPLUS_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define MPW_CPLUS_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __COMO__
Chris@16: #define __COMO___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __COMO___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __COMO_VERSION__
Chris@16: #define __COMO_VERSION___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __COMO_VERSION___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __INTEL_COMPILER
Chris@16: #define __INTEL_COMPILER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __INTEL_COMPILER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __ICL
Chris@16: #define __ICL_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __ICL_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _COMPILER_VERSION
Chris@16: #define _COMPILER_VERSION_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _COMPILER_VERSION_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef _RWSTD_VER
Chris@16: #define _RWSTD_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _RWSTD_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef BOOST_RWSTD_VER
Chris@16: #define BOOST_RWSTD_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_RWSTD_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __GLIBCPP__
Chris@16: #define __GLIBCPP___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __GLIBCPP___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC
Chris@16: #define _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __SGI_STL_PORT
Chris@16: #define __SGI_STL_PORT_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __SGI_STL_PORT_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _STLPORT_VERSION
Chris@16: #define _STLPORT_VERSION_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _STLPORT_VERSION_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef __LIBCOMO_VERSION__
Chris@16: #define __LIBCOMO_VERSION___WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define __LIBCOMO_VERSION___WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef _CPPLIB_VER
Chris@16: #define _CPPLIB_VER_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define _CPPLIB_VER_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_INTEL_CXX_VERSION
Chris@16: #define BOOST_INTEL_CXX_VERSION_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_INTEL_CXX_VERSION_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef BOOST_INTEL_WIN
Chris@16: #define BOOST_INTEL_WIN_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_INTEL_WIN_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef BOOST_DINKUMWARE_STDLIB
Chris@16: #define BOOST_DINKUMWARE_STDLIB_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_DINKUMWARE_STDLIB_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: #ifndef BOOST_INTEL
Chris@16: #define BOOST_INTEL_WORKAROUND_GUARD 1
Chris@16: #else
Chris@16: #define BOOST_INTEL_WORKAROUND_GUARD 0
Chris@16: #endif
Chris@16: // Always define to zero, if it's used it'll be defined my MPL:
Chris@16: #define BOOST_MPL_CFG_GCC_WORKAROUND_GUARD 0
Chris@16: 
Chris@16: #  define BOOST_WORKAROUND(symbol, test)                \
Chris@16:          ((symbol ## _WORKAROUND_GUARD + 0 == 0) &&     \
Chris@16:          (symbol != 0) && (1 % (( (symbol test) ) + 1)))
Chris@16: //                              ^ ^           ^ ^
Chris@16: // The extra level of parenthesis nesting above, along with the
Chris@16: // BOOST_OPEN_PAREN indirection below, is required to satisfy the
Chris@16: // broken preprocessor in MWCW 8.3 and earlier.
Chris@16: //
Chris@16: // The basic mechanism works as follows:
Chris@16: //      (symbol test) + 1        =>   if (symbol test) then 2 else 1
Chris@16: //      1 % ((symbol test) + 1)  =>   if (symbol test) then 1 else 0
Chris@16: //
Chris@16: // The complication with % is for cooperation with BOOST_TESTED_AT().
Chris@16: // When "test" is BOOST_TESTED_AT(x) and
Chris@16: // BOOST_DETECT_OUTDATED_WORKAROUNDS is #defined,
Chris@16: //
Chris@16: //      symbol test              =>   if (symbol <= x) then 1 else -1
Chris@16: //      (symbol test) + 1        =>   if (symbol <= x) then 2 else 0
Chris@16: //      1 % ((symbol test) + 1)  =>   if (symbol <= x) then 1 else divide-by-zero
Chris@16: //
Chris@16: 
Chris@16: #  ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS
Chris@16: #   define BOOST_OPEN_PAREN (
Chris@16: #   define BOOST_TESTED_AT(value)  > value) ?(-1): BOOST_OPEN_PAREN 1
Chris@16: #  else
Chris@16: #   define BOOST_TESTED_AT(value) != ((value)-(value))
Chris@16: #  endif
Chris@16: 
Chris@16: # else
Chris@16: 
Chris@16: #  define BOOST_WORKAROUND(symbol, test) 0
Chris@16: 
Chris@16: # endif 
Chris@16: 
Chris@16: #endif // WORKAROUND_DWA2002126_HPP