Mercurial > sdl-ios-xcode
annotate include/begin_code.h @ 670:b8679559e432
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 08 Aug 2003 18:00:39 +0000 |
| parents | d9c2ab142f2f |
| children | b8d311d90021 |
| rev | line source |
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| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 |
| 59 # define DECLSPEC | |
| 60 # endif | |
| 61 # endif | |
| 62 #endif | |
| 63 | |
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64 /* By default SDL uses the C calling convention */ |
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65 #ifndef SDLCALL |
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66 #ifdef WIN32 |
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67 #define SDLCALL __cdecl |
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68 #else |
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69 #define SDLCALL |
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70 #endif |
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71 #endif /* SDLCALL */ |
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72 |
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73 /* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */ |
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74 #ifdef __SYMBIAN32__ |
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75 #undef DECLSPEC |
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76 #define DECLSPEC |
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77 #endif /* __SYMBIAN32__ */ |
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78 |
| 0 | 79 /* Force structure packing at 4 byte alignment. |
| 80 This is necessary if the header is included in code which has structure | |
| 81 packing set to an alternate value, say for loading structures from disk. | |
| 82 The packing is reset to the previous value in close_code.h | |
| 83 */ | |
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84 #if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__) |
| 0 | 85 #ifdef _MSC_VER |
| 86 #pragma warning(disable: 4103) | |
| 87 #endif | |
| 88 #ifdef __BORLANDC__ | |
| 89 #pragma nopackwarning | |
| 90 #endif | |
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91 #pragma pack(push,4) |
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92 #elif (defined(__MWERKS__) && defined(macintosh)) |
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93 #pragma options align=mac68k4byte |
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94 #pragma enumsalwaysint on |
| 0 | 95 #endif /* Compiler needs structure packing set */ |
| 96 | |
| 97 /* Set up compiler-specific options for inlining functions */ | |
| 98 #ifndef SDL_INLINE_OKAY | |
| 99 #ifdef __GNUC__ | |
| 100 #define SDL_INLINE_OKAY | |
| 101 #else | |
| 102 /* Add any special compiler-specific cases here */ | |
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103 #if defined(_MSC_VER) || defined(__BORLANDC__) || \ |
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104 defined(__DMC__) || defined(__SC__) || \ |
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105 defined(__WATCOMC__) || defined(__LCC__) |
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106 #ifndef __inline__ |
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107 #define __inline__ __inline |
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108 #endif |
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109 #define SDL_INLINE_OKAY |
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110 #else |
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111 #if !defined(__MRC__) && !defined(_SGI_SOURCE) |
| 0 | 112 #define __inline__ inline |
| 113 #define SDL_INLINE_OKAY | |
| 114 #endif /* Not a funky compiler */ | |
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115 #endif /* Visual C++ */ |
| 0 | 116 #endif /* GNU C */ |
| 117 #endif /* SDL_INLINE_OKAY */ | |
| 118 | |
| 119 /* If inlining isn't supported, remove "__inline__", turning static | |
| 120 inlined functions into static functions (resulting in code bloat | |
| 121 in all files which include the offending header files) | |
| 122 */ | |
| 123 #ifndef SDL_INLINE_OKAY | |
| 124 #define __inline__ | |
| 125 #endif | |
| 126 | |
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127 /* Apparently this is needed by several Windows compilers */ |
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128 #if !defined(__MACH__) |
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129 #ifndef NULL |
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130 #ifdef __cplusplus |
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131 #define NULL 0 |
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132 #else |
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133 #define NULL ((void *)0) |
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134 #endif |
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135 #endif /* NULL */ |
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136 #endif /* ! MacOS X - breaks precompiled headers */ |