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 /* The unicode support is activated by default starting with the 3.9 MingW
  40    version. It is not possible to use it with previous version due to a bug
  41    in the MingW runtime.  */
  42
  43 #if (((__MINGW32_MAJOR_VERSION == 3 \
  44                    && __MINGW32_MINOR_VERSION >= 9) \
  45      || (__MINGW32_MAJOR_VERSION >= 4)) \
  46      && !defined (RTX))
  47 #define GNAT_UNICODE_SUPPORT
  48
  49 #else
  50
  51 /*  Older MingW versions have no definition for _tfreopen, add it here to have a
  52     proper build without unicode support.  */
  53 #ifndef _tfreopen
  54 #define _tfreopen   freopen
  55 #endif
  56
  57 #endif
  58
  59 #ifdef GNAT_UNICODE_SUPPORT
  60 #define _UNICODE /* For C runtime */
  61 #define UNICODE  /* For Win32 API */
  62 #endif
  63
  64 #include <tchar.h>
  65 #include <windows.h>
  66
  67 /* After including this file it is possible to use the character t as prefix
  68    to routines. If GNAT_UNICODE_SUPPORT is defined then the unicode enabled
  69    versions will be used.  */
  70
  71 /* Copy to/from wide-string, if GNAT_UNICODE_SUPPORT activated this will do
  72    the proper translations using the UTF-8 encoding.  */
  73
  74 #ifdef GNAT_UNICODE_SUPPORT
  75
  76 extern UINT CurrentCodePage;
  77
  78 /*  Macros to convert to/from the code page speficied in CurrentCodePage.  */
  79 #define S2WSC(wstr,str,len) \
  80    MultiByteToWideChar (CurrentCodePage,0,str,-1,wstr,len)
  81 #define WS2SC(str,wstr,len) \
  82    WideCharToMultiByte (CurrentCodePage,0,wstr,-1,str,len,NULL,NULL)
  83
  84 /*  Macros to convert to/from UTF-8 code page.  */
  85 #define S2WSU(wstr,str,len) \
  86    MultiByteToWideChar (CP_UTF8,0,str,-1,wstr,len)
  87 #define WS2SU(str,wstr,len) \
  88    WideCharToMultiByte (CP_UTF8,0,wstr,-1,str,len,NULL,NULL)
  89
  90 /*  Macros to convert to/from Windows default code page.  */
  91 #define S2WS(wstr,str,len) \
  92    MultiByteToWideChar (CP_ACP,0,str,-1,wstr,len)
  93 #define WS2S(str,wstr,len) \
  94    WideCharToMultiByte (CP_ACP,0,wstr,-1,str,len,NULL,NULL)
  95 #else
  96 #define S2WSC(wstr,str,len) strncpy(wstr,str,len)
  97 #define WS2SC(str,wstr,len) strncpy(str,wstr,len)
  98 #define S2WSU(wstr,str,len) strncpy(wstr,str,len)
  99 #define WS2SU(str,wstr,len) strncpy(str,wstr,len)
 100 #define S2WS(wstr,str,len) strncpy(wstr,str,len)
 101 #define WS2S(str,wstr,len) strncpy(str,wstr,len)
 102 #endif
 103
 104 #include <stdlib.h>
 105
 106 /* STD_MINGW: standard if MINGW32 version > 1.3, we have switched to this
 107    version instead of the previous enhanced version to ease building GNAT on
 108    Windows platforms. By using STD_MINGW or OLD_MINGW it is possible to build
 109    GNAT using both MingW include files (Old MingW + ACT changes and standard
 110    MingW starting with version 1.3.
 111    For w64 Mingw the define STD_MINGW is always set to value 1, because
 112    there is no old header set present.  */
 113 #ifdef _WIN64
 114 #define STD_MINGW 1
 115 #else
 116 #define STD_MINGW ((__MINGW32_MAJOR_VERSION == 1 \
 117                    && __MINGW32_MINOR_VERSION >= 3) \
 118      || (__MINGW32_MAJOR_VERSION >= 2))
 119 #endif
 120
 121 #define OLD_MINGW (!(STD_MINGW))
 122
 123 #ifndef MAXPATHLEN
 124 #define MAXPATHLEN MAX_PATH
 125 #endif
 126
 127 #endif /* _MINGW32_H */