Mercurial > sdl-ios-xcode
annotate include/begin_code.h @ 1316:0781906086fa
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author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 01 Feb 2006 08:24:32 +0000 |
parents | 173c063d4f55 |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2004 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 /* This file sets things up for C dynamic library function definitions, | |
24 static inlined functions, and structures aligned at 4-byte alignment. | |
25 If you don't like ugly C preprocessor code, don't look at this file. :) | |
26 */ | |
27 | |
28 /* This shouldn't be nested -- included it around code only. */ | |
29 #ifdef _begin_code_h | |
30 #error Nested inclusion of begin_code.h | |
31 #endif | |
32 #define _begin_code_h | |
33 | |
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34 /* Make sure the correct platform symbols are defined */ |
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35 #if !defined(WIN32) && defined(_WIN32) |
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36 #define WIN32 |
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37 #endif /* Windows */ |
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38 |
0 | 39 /* Some compilers use a special export keyword */ |
40 #ifndef DECLSPEC | |
41 # ifdef __BEOS__ | |
42 # if defined(__GNUC__) | |
43 # define DECLSPEC __declspec(dllexport) | |
44 # else | |
45 # define DECLSPEC __declspec(export) | |
46 # endif | |
47 # else | |
48 # ifdef WIN32 | |
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49 # ifdef __BORLANDC__ |
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50 # ifdef BUILD_SDL |
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51 # define DECLSPEC |
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52 # else |
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53 # define DECLSPEC __declspec(dllimport) |
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54 # endif |
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55 # else |
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56 # define DECLSPEC __declspec(dllexport) |
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57 # endif |
0 | 58 # else |
1190 | 59 # ifdef __OS2__ |
60 # ifdef __WATCOMC__ | |
61 # ifdef BUILD_SDL | |
62 # define DECLSPEC __declspec(dllexport) | |
63 # else | |
0 | 64 # define DECLSPEC |
65 # endif | |
1190 | 66 # else |
67 # define DECLSPEC | |
68 # endif | |
69 # else | |
70 # define DECLSPEC | |
71 # endif | |
72 # endif | |
0 | 73 # endif |
74 #endif | |
75 | |
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76 /* By default SDL uses the C calling convention */ |
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77 #ifndef SDLCALL |
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78 #if defined(WIN32) && !defined(__GNUC__) |
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79 #define SDLCALL __cdecl |
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80 #else |
1190 | 81 #ifdef __OS2__ |
82 /* But on OS/2, we use the _System calling convention */ | |
83 /* to be compatible with every compiler */ | |
84 #define SDLCALL _System | |
85 #else | |
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86 #define SDLCALL |
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87 #endif |
1190 | 88 #endif |
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89 #endif /* SDLCALL */ |
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90 |
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91 /* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */ |
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92 #ifdef __SYMBIAN32__ |
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93 #undef DECLSPEC |
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94 #define DECLSPEC |
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95 #endif /* __SYMBIAN32__ */ |
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96 |
0 | 97 /* Force structure packing at 4 byte alignment. |
98 This is necessary if the header is included in code which has structure | |
99 packing set to an alternate value, say for loading structures from disk. | |
100 The packing is reset to the previous value in close_code.h | |
101 */ | |
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102 #if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__) |
0 | 103 #ifdef _MSC_VER |
104 #pragma warning(disable: 4103) | |
105 #endif | |
106 #ifdef __BORLANDC__ | |
107 #pragma nopackwarning | |
108 #endif | |
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109 #pragma pack(push,4) |
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110 #elif (defined(__MWERKS__) && defined(macintosh)) |
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111 #pragma options align=mac68k4byte |
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112 #pragma enumsalwaysint on |
0 | 113 #endif /* Compiler needs structure packing set */ |
114 | |
115 /* Set up compiler-specific options for inlining functions */ | |
116 #ifndef SDL_INLINE_OKAY | |
117 #ifdef __GNUC__ | |
118 #define SDL_INLINE_OKAY | |
119 #else | |
120 /* Add any special compiler-specific cases here */ | |
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121 #if defined(_MSC_VER) || defined(__BORLANDC__) || \ |
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122 defined(__DMC__) || defined(__SC__) || \ |
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123 defined(__WATCOMC__) || defined(__LCC__) || \ |
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124 defined(__DECC) |
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125 #ifndef __inline__ |
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126 #define __inline__ __inline |
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127 #endif |
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128 #define SDL_INLINE_OKAY |
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129 #else |
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130 #if !defined(__MRC__) && !defined(_SGI_SOURCE) |
0 | 131 #define __inline__ inline |
132 #define SDL_INLINE_OKAY | |
133 #endif /* Not a funky compiler */ | |
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134 #endif /* Visual C++ */ |
0 | 135 #endif /* GNU C */ |
136 #endif /* SDL_INLINE_OKAY */ | |
137 | |
138 /* If inlining isn't supported, remove "__inline__", turning static | |
139 inlined functions into static functions (resulting in code bloat | |
140 in all files which include the offending header files) | |
141 */ | |
142 #ifndef SDL_INLINE_OKAY | |
143 #define __inline__ | |
144 #endif | |
145 | |
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146 /* Apparently this is needed by several Windows compilers */ |
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147 #if !defined(__MACH__) |
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148 #ifndef NULL |
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149 #ifdef __cplusplus |
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150 #define NULL 0 |
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151 #else |
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152 #define NULL ((void *)0) |
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153 #endif |
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154 #endif /* NULL */ |
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155 #endif /* ! MacOS X - breaks precompiled headers */ |