include/wx/compiler.h

   1 /*
   2  * Name:        wx/compiler.h
   3  * Purpose:     Compiler-specific macro definitions.
   4  * Author:      Vadim Zeitlin
   5  * Created:     2013-07-13 (extracted from wx/platform.h)
   6  * Copyright:   (c) 1997-2013 Vadim Zeitlin <vadim@wxwidgets.org>
   7  * Licence:     wxWindows licence
   8  */
   9
  10 /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
  11
  12 #ifndef _WX_COMPILER_H_
  13 #define _WX_COMPILER_H_
  14
  15 /*
  16     Compiler detection and related helpers.
  17  */
  18
  19 #ifdef __INTEL_COMPILER
  20 #   define __INTELC__
  21 #elif defined(_MSC_VER)
  22     /*
  23        define another standard symbol for Microsoft Visual C++: the standard
  24        one (_MSC_VER) is also defined by some other compilers.
  25      */
  26 #   define __VISUALC__ _MSC_VER
  27
  28     /*
  29       define special symbols for different VC version instead of writing tests
  30       for magic numbers such as 1200, 1300 &c repeatedly
  31     */
  32 #if __VISUALC__ < 1100
  33 #   error "This Visual C++ version is too old and not supported any longer."
  34 #elif __VISUALC__ < 1200
  35 #   define __VISUALC5__
  36 #elif __VISUALC__ < 1300
  37 #   define __VISUALC6__
  38 #elif __VISUALC__ < 1400
  39 #   define __VISUALC7__
  40 #elif __VISUALC__ < 1500
  41 #   define __VISUALC8__
  42 #elif __VISUALC__ < 1600
  43 #   define __VISUALC9__
  44 #elif __VISUALC__ < 1700
  45 #   define __VISUALC10__
  46 #elif __VISUALC__ < 1800
  47 #   define __VISUALC11__
  48 #elif __VISUALC__ < 1900
  49 #   define __VISUALC12__
  50 #else
  51 #   pragma message("Please update wx/compiler.h to recognize this VC++ version")
  52 #endif
  53
  54 #elif defined(__BCPLUSPLUS__) && !defined(__BORLANDC__)
  55 #   define __BORLANDC__
  56 #elif defined(__WATCOMC__)
  57 #elif defined(__SC__)
  58 #   define __SYMANTECC__
  59 #elif defined(__SUNPRO_CC)
  60 #   ifndef __SUNCC__
  61 #       define __SUNCC__ __SUNPRO_CC
  62 #   endif /* Sun CC */
  63 #elif defined(__SC__)
  64 #    ifdef __DMC__
  65 #         define __DIGITALMARS__
  66 #    else
  67 #         define __SYMANTEC__
  68 #    endif
  69 #endif  /* compiler */
  70
  71 /*
  72    Macros for checking compiler version.
  73 */
  74
  75 /*
  76    This macro can be used to test the gcc version and can be used like this:
  77
  78 #    if wxCHECK_GCC_VERSION(3, 1)
  79         ... we have gcc 3.1 or later ...
  80 #    else
  81         ... no gcc at all or gcc < 3.1 ...
  82 #    endif
  83 */
  84 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
  85     #define wxCHECK_GCC_VERSION( major, minor ) \
  86         ( ( __GNUC__ > (major) ) \
  87             || ( __GNUC__ == (major) && __GNUC_MINOR__ >= (minor) ) )
  88 #else
  89     #define wxCHECK_GCC_VERSION( major, minor ) 0
  90 #endif
  91
  92 /*
  93    This macro can be used to test the Visual C++ version.
  94 */
  95 #ifndef __VISUALC__
  96 #   define wxVISUALC_VERSION(major) 0
  97 #   define wxCHECK_VISUALC_VERSION(major) 0
  98 #else
  99 #   define wxVISUALC_VERSION(major) ( (6 + major) * 100 )
 100 #   define wxCHECK_VISUALC_VERSION(major) ( __VISUALC__ >= wxVISUALC_VERSION(major) )
 101 #endif
 102
 103 /**
 104     This is similar to wxCHECK_GCC_VERSION but for Sun CC compiler.
 105  */
 106 #ifdef __SUNCC__
 107     /*
 108        __SUNCC__ is 0xVRP where V is major version, R release and P patch level
 109      */
 110     #define wxCHECK_SUNCC_VERSION(maj, min) (__SUNCC__ >= (((maj)<<8) | ((min)<<4)))
 111 #else
 112     #define wxCHECK_SUNCC_VERSION(maj, min) (0)
 113 #endif
 114
 115 #ifndef __WATCOMC__
 116 #   define wxWATCOM_VERSION(major,minor) 0
 117 #   define wxCHECK_WATCOM_VERSION(major,minor) 0
 118 #   define wxONLY_WATCOM_EARLIER_THAN(major,minor) 0
 119 #   define WX_WATCOM_ONLY_CODE( x )
 120 #else
 121 #   if __WATCOMC__ < 1200
 122 #       error "Only Open Watcom is supported in this release"
 123 #   endif
 124
 125 #   define wxWATCOM_VERSION(major,minor) ( major * 100 + minor * 10 + 1100 )
 126 #   define wxCHECK_WATCOM_VERSION(major,minor) ( __WATCOMC__ >= wxWATCOM_VERSION(major,minor) )
 127 #   define wxONLY_WATCOM_EARLIER_THAN(major,minor) ( __WATCOMC__ < wxWATCOM_VERSION(major,minor) )
 128 #   define WX_WATCOM_ONLY_CODE( x )  x
 129 #endif
 130
 131 /*
 132    This macro can be used to check that the version of mingw32 compiler is
 133    at least maj.min
 134  */
 135
 136 /* Check for Mingw runtime version: */
 137 #if defined(__MINGW32_MAJOR_VERSION) && defined(__MINGW32_MINOR_VERSION)
 138     #define wxCHECK_MINGW32_VERSION( major, minor ) \
 139  ( ( ( __MINGW32_MAJOR_VERSION > (major) ) \
 140       || ( __MINGW32_MAJOR_VERSION == (major) && __MINGW32_MINOR_VERSION >= (minor) ) ) )
 141
 142 /*
 143     MinGW-w64 project provides compilers for both Win32 and Win64 but only
 144     defines the same __MINGW32__ symbol for the former as MinGW32 toolchain
 145     which is quite different (notably doesn't provide many SDK headers that
 146     MinGW-w64 does include). So we define a separate symbol which, unlike the
 147     predefined __MINGW64__, can be used to detect this toolchain in both 32 and
 148     64 bit builds.
 149
 150     And define __MINGW32_TOOLCHAIN__ for consistency and also because it's
 151     convenient as we often want to have some workarounds only for the (old)
 152     MinGW32 but not (newer) MinGW-w64, which still predefines __MINGW32__.
 153  */
 154 #   ifdef __MINGW64_VERSION_MAJOR
 155 #       ifndef __MINGW64_TOOLCHAIN__
 156 #           define __MINGW64_TOOLCHAIN__
 157 #       endif
 158 #   else
 159 #       ifndef __MINGW32_TOOLCHAIN__
 160 #           define __MINGW32_TOOLCHAIN__
 161 #       endif
 162 #   endif
 163 #else
 164     #define wxCHECK_MINGW32_VERSION( major, minor ) (0)
 165 #endif
 166
 167 #endif // _WX_COMPILER_H_