boost/detail/workaround.hpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #ifndef WORKAROUND_DWA2002126_HPP
   6 # define WORKAROUND_DWA2002126_HPP
   7
   8 // Compiler/library version workaround macro
   9 //
  10 // Usage:
  11 //
  12 //     #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
  13 //        // workaround for eVC4 and VC6
  14 //        ... // workaround code here
  15 //     #endif
  16 //
  17 // When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the
  18 // first argument must be undefined or expand to a numeric
  19 // value. The above expands to:
  20 //
  21 //     (BOOST_MSVC) != 0 && (BOOST_MSVC) < 1300
  22 //
  23 // When used for workarounds that apply to the latest known version
  24 // and all earlier versions of a compiler, the following convention
  25 // should be observed:
  26 //
  27 //     #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1301))
  28 //
  29 // The version number in this case corresponds to the last version in
  30 // which the workaround was known to have been required. When
  31 // BOOST_DETECT_OUTDATED_WORKAROUNDS is not the defined, the macro
  32 // BOOST_TESTED_AT(x) expands to "!= 0", which effectively activates
  33 // the workaround for any version of the compiler. When
  34 // BOOST_DETECT_OUTDATED_WORKAROUNDS is defined, a compiler warning or
  35 // error will be issued if the compiler version exceeds the argument
  36 // to BOOST_TESTED_AT().  This can be used to locate workarounds which
  37 // may be obsoleted by newer versions.
  38
  39 # ifndef BOOST_STRICT_CONFIG
  40
  41 #include <boost/config.hpp>
  42
  43 #ifndef __BORLANDC__
  44 #define __BORLANDC___WORKAROUND_GUARD 1
  45 #else
  46 #define __BORLANDC___WORKAROUND_GUARD 0
  47 #endif
  48 #ifndef __CODEGEARC__
  49 #define __CODEGEARC___WORKAROUND_GUARD 1
  50 #else
  51 #define __CODEGEARC___WORKAROUND_GUARD 0
  52 #endif
  53 #ifndef _MSC_VER
  54 #define _MSC_VER_WORKAROUND_GUARD 1
  55 #else
  56 #define _MSC_VER_WORKAROUND_GUARD 0
  57 #endif
  58 #ifndef _MSC_FULL_VER
  59 #define _MSC_FULL_VER_WORKAROUND_GUARD 1
  60 #else
  61 #define _MSC_FULL_VER_WORKAROUND_GUARD 0
  62 #endif
  63 #ifndef BOOST_MSVC
  64 #define BOOST_MSVC_WORKAROUND_GUARD 1
  65 #else
  66 #define BOOST_MSVC_WORKAROUND_GUARD 0
  67 #endif
  68 #ifndef __GNUC__
  69 #define __GNUC___WORKAROUND_GUARD 1
  70 #else
  71 #define __GNUC___WORKAROUND_GUARD 0
  72 #endif
  73 #ifndef __GNUC_MINOR__
  74 #define __GNUC_MINOR___WORKAROUND_GUARD 1
  75 #else
  76 #define __GNUC_MINOR___WORKAROUND_GUARD 0
  77 #endif
  78 #ifndef __GNUC_PATCHLEVEL__
  79 #define __GNUC_PATCHLEVEL___WORKAROUND_GUARD 1
  80 #else
  81 #define __GNUC_PATCHLEVEL___WORKAROUND_GUARD 0
  82 #endif
  83 #ifndef __IBMCPP__
  84 #define __IBMCPP___WORKAROUND_GUARD 1
  85 #else
  86 #define __IBMCPP___WORKAROUND_GUARD 0
  87 #endif
  88 #ifndef __SUNPRO_CC
  89 #define __SUNPRO_CC_WORKAROUND_GUARD 1
  90 #else
  91 #define __SUNPRO_CC_WORKAROUND_GUARD 0
  92 #endif
  93 #ifndef __DECCXX_VER
  94 #define __DECCXX_VER_WORKAROUND_GUARD 1
  95 #else
  96 #define __DECCXX_VER_WORKAROUND_GUARD 0
  97 #endif
  98 #ifndef __MWERKS__
  99 #define __MWERKS___WORKAROUND_GUARD 1
 100 #else
 101 #define __MWERKS___WORKAROUND_GUARD 0
 102 #endif
 103 #ifndef __EDG__
 104 #define __EDG___WORKAROUND_GUARD 1
 105 #else
 106 #define __EDG___WORKAROUND_GUARD 0
 107 #endif
 108 #ifndef __EDG_VERSION__
 109 #define __EDG_VERSION___WORKAROUND_GUARD 1
 110 #else
 111 #define __EDG_VERSION___WORKAROUND_GUARD 0
 112 #endif
 113 #ifndef __HP_aCC
 114 #define __HP_aCC_WORKAROUND_GUARD 1
 115 #else
 116 #define __HP_aCC_WORKAROUND_GUARD 0
 117 #endif
 118 #ifndef __hpxstd98
 119 #define __hpxstd98_WORKAROUND_GUARD 1
 120 #else
 121 #define __hpxstd98_WORKAROUND_GUARD 0
 122 #endif
 123 #ifndef _CRAYC
 124 #define _CRAYC_WORKAROUND_GUARD 1
 125 #else
 126 #define _CRAYC_WORKAROUND_GUARD 0
 127 #endif
 128 #ifndef __DMC__
 129 #define __DMC___WORKAROUND_GUARD 1
 130 #else
 131 #define __DMC___WORKAROUND_GUARD 0
 132 #endif
 133 #ifndef MPW_CPLUS
 134 #define MPW_CPLUS_WORKAROUND_GUARD 1
 135 #else
 136 #define MPW_CPLUS_WORKAROUND_GUARD 0
 137 #endif
 138 #ifndef __COMO__
 139 #define __COMO___WORKAROUND_GUARD 1
 140 #else
 141 #define __COMO___WORKAROUND_GUARD 0
 142 #endif
 143 #ifndef __COMO_VERSION__
 144 #define __COMO_VERSION___WORKAROUND_GUARD 1
 145 #else
 146 #define __COMO_VERSION___WORKAROUND_GUARD 0
 147 #endif
 148 #ifndef __INTEL_COMPILER
 149 #define __INTEL_COMPILER_WORKAROUND_GUARD 1
 150 #else
 151 #define __INTEL_COMPILER_WORKAROUND_GUARD 0
 152 #endif
 153 #ifndef __ICL
 154 #define __ICL_WORKAROUND_GUARD 1
 155 #else
 156 #define __ICL_WORKAROUND_GUARD 0
 157 #endif
 158 #ifndef _COMPILER_VERSION
 159 #define _COMPILER_VERSION_WORKAROUND_GUARD 1
 160 #else
 161 #define _COMPILER_VERSION_WORKAROUND_GUARD 0
 162 #endif
 163
 164 #ifndef _RWSTD_VER
 165 #define _RWSTD_VER_WORKAROUND_GUARD 1
 166 #else
 167 #define _RWSTD_VER_WORKAROUND_GUARD 0
 168 #endif
 169 #ifndef BOOST_RWSTD_VER
 170 #define BOOST_RWSTD_VER_WORKAROUND_GUARD 1
 171 #else
 172 #define BOOST_RWSTD_VER_WORKAROUND_GUARD 0
 173 #endif
 174 #ifndef __GLIBCPP__
 175 #define __GLIBCPP___WORKAROUND_GUARD 1
 176 #else
 177 #define __GLIBCPP___WORKAROUND_GUARD 0
 178 #endif
 179 #ifndef _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC
 180 #define _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC_WORKAROUND_GUARD 1
 181 #else
 182 #define _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC_WORKAROUND_GUARD 0
 183 #endif
 184 #ifndef __SGI_STL_PORT
 185 #define __SGI_STL_PORT_WORKAROUND_GUARD 1
 186 #else
 187 #define __SGI_STL_PORT_WORKAROUND_GUARD 0
 188 #endif
 189 #ifndef _STLPORT_VERSION
 190 #define _STLPORT_VERSION_WORKAROUND_GUARD 1
 191 #else
 192 #define _STLPORT_VERSION_WORKAROUND_GUARD 0
 193 #endif
 194 #ifndef __LIBCOMO_VERSION__
 195 #define __LIBCOMO_VERSION___WORKAROUND_GUARD 1
 196 #else
 197 #define __LIBCOMO_VERSION___WORKAROUND_GUARD 0
 198 #endif
 199 #ifndef _CPPLIB_VER
 200 #define _CPPLIB_VER_WORKAROUND_GUARD 1
 201 #else
 202 #define _CPPLIB_VER_WORKAROUND_GUARD 0
 203 #endif
 204
 205 #ifndef BOOST_INTEL_CXX_VERSION
 206 #define BOOST_INTEL_CXX_VERSION_WORKAROUND_GUARD 1
 207 #else
 208 #define BOOST_INTEL_CXX_VERSION_WORKAROUND_GUARD 0
 209 #endif
 210 #ifndef BOOST_INTEL_WIN
 211 #define BOOST_INTEL_WIN_WORKAROUND_GUARD 1
 212 #else
 213 #define BOOST_INTEL_WIN_WORKAROUND_GUARD 0
 214 #endif
 215 #ifndef BOOST_DINKUMWARE_STDLIB
 216 #define BOOST_DINKUMWARE_STDLIB_WORKAROUND_GUARD 1
 217 #else
 218 #define BOOST_DINKUMWARE_STDLIB_WORKAROUND_GUARD 0
 219 #endif
 220 #ifndef BOOST_INTEL
 221 #define BOOST_INTEL_WORKAROUND_GUARD 1
 222 #else
 223 #define BOOST_INTEL_WORKAROUND_GUARD 0
 224 #endif
 225 // Always define to zero, if it's used it'll be defined my MPL:
 226 #define BOOST_MPL_CFG_GCC_WORKAROUND_GUARD 0
 227
 228 #  define BOOST_WORKAROUND(symbol, test)                \
 229          ((symbol ## _WORKAROUND_GUARD + 0 == 0) &&     \
 230          (symbol != 0) && (1 % (( (symbol test) ) + 1)))
 231 //                              ^ ^           ^ ^
 232 // The extra level of parenthesis nesting above, along with the
 233 // BOOST_OPEN_PAREN indirection below, is required to satisfy the
 234 // broken preprocessor in MWCW 8.3 and earlier.
 235 //
 236 // The basic mechanism works as follows:
 237 //      (symbol test) + 1        =>   if (symbol test) then 2 else 1
 238 //      1 % ((symbol test) + 1)  =>   if (symbol test) then 1 else 0
 239 //
 240 // The complication with % is for cooperation with BOOST_TESTED_AT().
 241 // When "test" is BOOST_TESTED_AT(x) and
 242 // BOOST_DETECT_OUTDATED_WORKAROUNDS is #defined,
 243 //
 244 //      symbol test              =>   if (symbol <= x) then 1 else -1
 245 //      (symbol test) + 1        =>   if (symbol <= x) then 2 else 0
 246 //      1 % ((symbol test) + 1)  =>   if (symbol <= x) then 1 else divide-by-zero
 247 //
 248
 249 #  ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS
 250 #   define BOOST_OPEN_PAREN (
 251 #   define BOOST_TESTED_AT(value)  > value) ?(-1): BOOST_OPEN_PAREN 1
 252 #  else
 253 #   define BOOST_TESTED_AT(value) != ((value)-(value))
 254 #  endif
 255
 256 # else
 257
 258 #  define BOOST_WORKAROUND(symbol, test) 0
 259
 260 # endif
 261
 262 #endif // WORKAROUND_DWA2002126_HPP