gcc/ada/mingw32.h

   1 /****************************************************************************
   2  *                                                                          *
   3  *                         GNAT COMPILER COMPONENTS                         *
   4  *                                                                          *
   5  *                               M I N G W 3 2                              *
   6  *                                                                          *
   7  *                              C Header File                               *
   8  *                                                                          *
   9  *          Copyright (C) 2002-2009, Free Software Foundation, Inc.         *
  10  *                                                                          *
  11  * GNAT is free software;  you can  redistribute it  and/or modify it under *
  12  * terms of the  GNU General Public License as published  by the Free Soft- *
  13  * ware  Foundation;  either version 3,  or (at your option) any later ver- *
  14  * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
  15  * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
  16  * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
  17  *                                                                          *
  18  * As a special exception under Section 7 of GPL version 3, you are granted *
  19  * additional permissions described in the GCC Runtime Library Exception,   *
  20  * version 3.1, as published by the Free Software Foundation.               *
  21  *                                                                          *
  22  * You should have received a copy of the GNU General Public License and    *
  23  * a copy of the GCC Runtime Library Exception along with this program;     *
  24  * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    *
  25  * <http://www.gnu.org/licenses/>.                                          *
  26  *                                                                          *
  27  * GNAT was originally developed  by the GNAT team at  New York University. *
  28  * Extensive contributions were provided by Ada Core Technologies Inc.      *
  29  *                                                                          *
  30  ****************************************************************************/
  31
  32 /*  This file provides some macros used for the MINGW32 platform. The main
  33     goal is to be able to build GNAT with a standard MINGW32 C header
  34     set. This files contains also the circuitry for the unicode support.   */
  35
  36 #ifndef _MINGW32_H
  37 #define _MINGW32_H
  38
  39 #include <_mingw.h>
  40
  41 /* The unicode support is activated by default starting with the 3.9 MingW
  42    version. It is not possible to use it with previous version due to a bug
  43    in the MingW runtime.  */
  44
  45 #if (((__MINGW32_MAJOR_VERSION == 3 \
  46                    && __MINGW32_MINOR_VERSION >= 9) \
  47      || (__MINGW32_MAJOR_VERSION >= 4) \
  48      || defined (__MINGW64))           \
  49      && !defined (RTX))
  50 #define GNAT_UNICODE_SUPPORT
  51
  52 #else
  53
  54 /*  Older MingW versions have no definition for _tfreopen, add it here to have a
  55     proper build without unicode support.  */
  56 #ifndef _tfreopen
  57 #define _tfreopen   freopen
  58 #endif
  59
  60 #endif
  61
  62 #ifdef GNAT_UNICODE_SUPPORT
  63 #define _UNICODE /* For C runtime */
  64 #define UNICODE  /* For Win32 API */
  65 #endif
  66
  67 /* We need functionality available only starting with Windows XP */
  68 #ifndef _WIN32_WINNT
  69 #define _WIN32_WINNT 0x0501
  70 #endif
  71
  72 #include <tchar.h>
  73 #include <windows.h>
  74
  75 /* After including this file it is possible to use the character t as prefix
  76    to routines. If GNAT_UNICODE_SUPPORT is defined then the unicode enabled
  77    versions will be used.  */
  78
  79 /* Copy to/from wide-string, if GNAT_UNICODE_SUPPORT activated this will do
  80    the proper translations using the UTF-8 encoding.  */
  81
  82 #ifdef GNAT_UNICODE_SUPPORT
  83
  84 extern UINT CurrentCodePage;
  85
  86 /*  Macros to convert to/from the code page speficied in CurrentCodePage.  */
  87 #define S2WSC(wstr,str,len) \
  88    MultiByteToWideChar (CurrentCodePage,0,str,-1,wstr,len)
  89 #define WS2SC(str,wstr,len) \
  90    WideCharToMultiByte (CurrentCodePage,0,wstr,-1,str,len,NULL,NULL)
  91
  92 /*  Macros to convert to/from UTF-8 code page.  */
  93 #define S2WSU(wstr,str,len) \
  94    MultiByteToWideChar (CP_UTF8,0,str,-1,wstr,len)
  95 #define WS2SU(str,wstr,len) \
  96    WideCharToMultiByte (CP_UTF8,0,wstr,-1,str,len,NULL,NULL)
  97
  98 /*  Macros to convert to/from Windows default code page.  */
  99 #define S2WS(wstr,str,len) \
 100    MultiByteToWideChar (CP_ACP,0,str,-1,wstr,len)
 101 #define WS2S(str,wstr,len) \
 102    WideCharToMultiByte (CP_ACP,0,wstr,-1,str,len,NULL,NULL)
 103 #else
 104 #define S2WSC(wstr,str,len) strncpy(wstr,str,len)
 105 #define WS2SC(str,wstr,len) strncpy(str,wstr,len)
 106 #define S2WSU(wstr,str,len) strncpy(wstr,str,len)
 107 #define WS2SU(str,wstr,len) strncpy(str,wstr,len)
 108 #define S2WS(wstr,str,len) strncpy(wstr,str,len)
 109 #define WS2S(str,wstr,len) strncpy(str,wstr,len)
 110 #endif
 111
 112 #include <stdlib.h>
 113
 114 /* STD_MINGW: standard if MINGW32 version > 1.3, we have switched to this
 115    version instead of the previous enhanced version to ease building GNAT on
 116    Windows platforms. By using STD_MINGW or OLD_MINGW it is possible to build
 117    GNAT using both MingW include files (Old MingW + ACT changes and standard
 118    MingW starting with version 1.3.
 119    For w64 Mingw the define STD_MINGW is always set to value 1, because
 120    there is no old header set present.  */
 121 #ifdef _WIN64
 122 #define STD_MINGW 1
 123 #else
 124 #define STD_MINGW ((__MINGW32_MAJOR_VERSION == 1 \
 125                    && __MINGW32_MINOR_VERSION >= 3) \
 126      || (__MINGW32_MAJOR_VERSION >= 2))
 127 #endif
 128
 129 #define OLD_MINGW (!(STD_MINGW))
 130
 131 #ifndef MAXPATHLEN
 132 #define MAXPATHLEN MAX_PATH
 133 #endif
 134
 135 #endif /* _MINGW32_H */