1 /****************************************************************************
2  *                                                                          *
3  *                         GNAT COMPILER COMPONENTS                         *
4  *                                                                          *
5  *                               M I N G W 3 2                              *
6  *                                                                          *
7  *                              C Header File                               *
8  *                                                                          *
9  *          Copyright (C) 2002-2019, 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 #ifndef RTX
42 #define GNAT_UNICODE_SUPPORT
43 #define _UNICODE /* For C runtime */
44 #define UNICODE  /* For Win32 API */
45 #endif
46 
47 /* We need functionality available only starting with Windows XP */
48 #ifndef _WIN32_WINNT
49 #define _WIN32_WINNT 0x0501
50 #endif
51 
52 #ifndef __CYGWIN__
53 #include <tchar.h>
54 #endif
55 #if defined (__CYGWIN__) && !defined (__CYGWIN32__) && !defined (IN_RTS)
56 /* Note: windows.h on cygwin-64 includes x86intrin.h which uses malloc.
57    That fails to compile, if malloc is poisoned, i.e. if !IN_RTS.  */
58 #define _X86INTRIN_H_INCLUDED
59 #endif
60 #include <windows.h>
61 
62 /* After including this file it is possible to use the character t as prefix
63    to routines. If GNAT_UNICODE_SUPPORT is defined then the unicode enabled
64    versions will be used.  */
65 
66 /* Copy to/from wide-string, if GNAT_UNICODE_SUPPORT activated this will do
67    the proper translations using the UTF-8 encoding.  */
68 
69 #ifdef GNAT_UNICODE_SUPPORT
70 
71 extern UINT __gnat_current_codepage;
72 extern UINT __gnat_current_ccs_encoding;
73 
74 /*  Macros to convert to/from the code page specified in
75     __gnat_current_codepage.  */
76 #define S2WSC(wstr,str,len) \
77    MultiByteToWideChar (__gnat_current_codepage,0,str,-1,wstr,len)
78 #define WS2SC(str,wstr,len) \
79    WideCharToMultiByte (__gnat_current_codepage,0,wstr,-1,str,len,NULL,NULL)
80 
81 /*  Macros to convert to/from UTF-8 code page.  */
82 #define S2WSU(wstr,str,len) \
83    MultiByteToWideChar (CP_UTF8,0,str,-1,wstr,len)
84 #define WS2SU(str,wstr,len) \
85    WideCharToMultiByte (CP_UTF8,0,wstr,-1,str,len,NULL,NULL)
86 
87 /*  Macros to convert to/from Windows default code page.  */
88 #define S2WS(wstr,str,len) \
89    MultiByteToWideChar (CP_ACP,0,str,-1,wstr,len)
90 #define WS2S(str,wstr,len) \
91    WideCharToMultiByte (CP_ACP,0,wstr,-1,str,len,NULL,NULL)
92 #else
93 #define S2WSC(wstr,str,len) strncpy(wstr,str,len)
94 #define WS2SC(str,wstr,len) strncpy(str,wstr,len)
95 #define S2WSU(wstr,str,len) strncpy(wstr,str,len)
96 #define WS2SU(str,wstr,len) strncpy(str,wstr,len)
97 #define S2WS(wstr,str,len) strncpy(wstr,str,len)
98 #define WS2S(str,wstr,len) strncpy(str,wstr,len)
99 #endif
100 
101 #include <stdlib.h>
102 
103 /* STD_MINGW: standard if MINGW32 version > 1.3, we have switched to this
104    version instead of the previous enhanced version to ease building GNAT on
105    Windows platforms. By using STD_MINGW or OLD_MINGW it is possible to build
106    GNAT using both MingW include files (Old MingW + ACT changes and standard
107    MingW starting with version 1.3.
108    For w64 Mingw the define STD_MINGW is always set to value 1, because
109    there is no old header set present.  */
110 #ifdef _WIN64
111 #define STD_MINGW 1
112 #else
113 #define STD_MINGW ((__MINGW32_MAJOR_VERSION == 1 \
114 		   && __MINGW32_MINOR_VERSION >= 3) \
115      || (__MINGW32_MAJOR_VERSION >= 2))
116 #endif
117 
118 #define OLD_MINGW (!(STD_MINGW))
119 
120 #ifndef MAXPATHLEN
121 #define MAXPATHLEN MAX_PATH
122 #endif
123 
124 #endif /* _MINGW32_H */
125