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annotate include/SDL_string.h @ 1336:3692456e7b0f

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Use SDL_ prefixed versions of C library functions. FIXME: Change #include <stdlib.h> to #include "SDL_stdlib.h" Change #include <string.h> to #include "SDL_string.h" Make sure nothing else broke because of this...
author Sam Lantinga <slouken@libsdl.org>
date Tue, 07 Feb 2006 06:59:48 +0000
parents 450721ad5436
children d02b552e5304
rev   line source
1330
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* This file contains portable string manipulation functions for SDL */
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24
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25 #ifndef _SDL_string_h
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26 #define _SDL_string_h
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27
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28 #include "SDL_config.h"
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29
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30 #ifdef HAVE_STDIO_H
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31 #include <stdio.h> /* For snprintf() and friends */
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32 #endif
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33
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34 #ifdef HAVE_STRING_H
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35 #include <string.h>
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36 #endif
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37
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38 #include "SDL_types.h"
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39 #include "SDL_stdarg.h"
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40
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41 #include "begin_code.h"
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42 /* Set up for C function definitions, even when using C++ */
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43 #ifdef __cplusplus
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44 extern "C" {
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45 #endif
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46
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47 #ifdef HAVE_MEMSET
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48 #define SDL_memset memset
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49 #else
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50 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
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51 #endif
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52
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53 #if defined(__GNUC__) && defined(i386)
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54 #define SDL_memset4(dst, val, len) \
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55 do { \
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56 int u0, u1, u2; \
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57 __asm__ __volatile__ ( \
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58 "cld\n\t" \
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59 "rep ; stosl\n\t" \
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60 : "=&D" (u0), "=&a" (u1), "=&c" (u2) \
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61 : "0" (dst), "1" (val), "2" ((Uint32)(len)) \
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62 : "memory" ); \
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63 } while(0)
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64 #endif
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65 #ifndef SDL_memset4
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66 #define SDL_memset4(dst, val, len) \
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67 do { \
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68 unsigned _count = (len); \
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69 unsigned _n = (_count + 3) / 4; \
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70 Uint32 *_p = (Uint32 *)(dst); \
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71 Uint32 _val = (val); \
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72 switch (_count % 4) { \
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73 case 0: do { *_p++ = _val; \
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74 case 3: *_p++ = _val; \
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75 case 2: *_p++ = _val; \
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76 case 1: *_p++ = _val; \
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77 } while ( --_n ); \
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78 } \
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79 } while(0)
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80 #endif
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81
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82 #if defined(__GNUC__) && defined(i386)
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83 #define SDL_memcpy(dst, src, len) \
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84 do { \
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85 int u0, u1, u2; \
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86 __asm__ __volatile__ ( \
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87 "cld\n\t" \
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88 "rep ; movsl\n\t" \
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89 "testb $2,%b4\n\t" \
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90 "je 1f\n\t" \
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91 "movsw\n" \
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92 "1:\ttestb $1,%b4\n\t" \
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93 "je 2f\n\t" \
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94 "movsb\n" \
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95 "2:" \
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96 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \
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97 : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
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98 : "memory" ); \
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99 } while(0)
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100 #endif
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101 #ifndef SDL_memcpy
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102 #ifdef HAVE_MEMCPY
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103 #define SDL_memcpy memcpy
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104 #else
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105 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
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106 #endif
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107 #endif
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108
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109 #if defined(__GNUC__) && defined(i386)
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110 #define SDL_memcpy4(dst, src, len) \
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111 do { \
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112 int ecx, edi, esi; \
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113 __asm__ __volatile__ ( \
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114 "cld\n\t" \
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115 "rep ; movsl" \
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116 : "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
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117 : "0" ((unsigned)(len)), "1" (dst), "2" (src) \
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118 : "memory" ); \
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119 } while(0)
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120 #endif
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121 #ifndef SDL_memcpy4
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122 #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
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123 #endif
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124
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125 #if defined(__GNUC__) && defined(i386)
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126 #define SDL_revcpy(dst, src, len) \
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127 do { \
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128 int u0, u1, u2; \
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129 char *dstp = (char *)(dst); \
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130 char *srcp = (char *)(src); \
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131 int n = (len); \
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132 if ( n >= 4 ) { \
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133 __asm__ __volatile__ ( \
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134 "std\n\t" \
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135 "rep ; movsl\n\t" \
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136 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \
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137 : "0" (n >> 2), \
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138 "1" (dstp+(n-4)), "2" (srcp+(n-4)) \
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139 : "memory" ); \
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140 } \
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141 switch (n & 3) { \
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142 case 3: dstp[2] = srcp[2]; \
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143 case 2: dstp[1] = srcp[1]; \
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144 case 1: dstp[0] = srcp[0]; \
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145 break; \
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146 default: \
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147 break; \
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148 } \
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149 } while(0)
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150 #endif
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151 #ifndef SDL_revcpy
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152 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
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153 #endif
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154
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155 #ifdef HAVE_MEMMOVE
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156 #define SDL_memmove memmove
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157 #else
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158 #define SDL_memmove(dst, src, len) \
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159 do { \
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160 if ( dst < src ) { \
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161 SDL_memcpy(dst, src, len); \
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162 } else { \
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163 SDL_revcpy(dst, src, len); \
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164 } \
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165 } while(0)
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166 #endif
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167
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168 #ifdef HAVE_MEMCMP
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169 #define SDL_memcmp memcmp
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170 #else
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171 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
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172 #endif
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173
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174 #ifdef HAVE_STRLEN
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175 #define SDL_strlen strlen
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176 #else
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177 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
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178 #endif
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179
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180 #ifdef HAVE_STRCPY
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181 #define SDL_strcpy strcpy
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182 #else
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183 extern DECLSPEC char * SDLCALL SDL_strcpy(char *dst, const char *src);
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184 #endif
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185
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186 #ifdef HAVE_STRNCPY
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187 #define SDL_strncpy strncpy
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188 #else
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189 extern DECLSPEC char * SDLCALL SDL_strncpy(char *dst, const char *src, size_t maxlen);
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190 #endif
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191
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192 #ifdef HAVE_STRCAT
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193 #define SDL_strcat strcat
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194 #else
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195 #define SDL_strcat(dst, src) (SDL_strcpy(dst+SDL_strlen(dst), src), dst)
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196 #endif
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197
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198 #ifdef HAVE_STRNCAT
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199 #define SDL_strncat strncat
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200 #else
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201 #define SDL_strncat(dst, src, n) (SDL_strncpy(dst+SDL_strlen(dst), src, n), dst)
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202 #endif
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203
1330
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204 #ifdef HAVE__STRREV
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205 #define SDL_strrev _strrev
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206 #else
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207 extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
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208 #endif
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209
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210 #ifdef HAVE__STRUPR
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211 #define SDL_strupr _strupr
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212 #else
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213 extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
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214 #endif
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215
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diff changeset
216 #ifdef HAVE__STRLWR
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217 #define SDL_strlwr _strlwr
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218 #else
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219 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
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220 #endif
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221
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222 #ifdef HAVE_STRCHR
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223 #define SDL_strchr strchr
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224 #else
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225 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
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226 #endif
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227
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228 #ifdef HAVE_STRRCHR
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229 #define SDL_strrchr strrchr
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230 #else
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231 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
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232 #endif
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233
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234 #ifdef HAVE_STRSTR
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235 #define SDL_strstr strstr
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236 #else
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237 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
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238 #endif
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239
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240 #ifdef HAVE_ITOA
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241 #define SDL_itoa itoa
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242 #else
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243 #define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
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244 #endif
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245
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246 #ifdef HAVE__LTOA
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247 #define SDL_ltoa _ltoa
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248 #else
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249 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
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250 #endif
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251
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252 #ifdef HAVE__UITOA
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253 #define SDL_uitoa _uitoa
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254 #else
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255 #define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
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256 #endif
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257
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258 #ifdef HAVE__ULTOA
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259 #define SDL_ultoa _ultoa
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260 #else
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261 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
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262 #endif
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263
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264 #ifdef HAVE_STRTOL
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265 #define SDL_strtol strtol
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266 #else
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267 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
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268 #endif
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269
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270 #ifdef SDL_HAS_64BIT_TYPE
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271
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272 #ifdef HAVE__I64TOA
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273 #define SDL_lltoa _i64toa
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274 #else
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275 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
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276 #endif
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277
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278 #ifdef HAVE__UI64TOA
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279 #define SDL_ulltoa _ui64toa
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280 #else
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281 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
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282 #endif
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283
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284 #ifdef HAVE_STRTOLL
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285 #define SDL_strtoll strtoll
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286 #else
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287 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
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288 #endif
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289
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290 #endif /* SDL_HAS_64BIT_TYPE */
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291
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292 #ifdef HAVE_STRCMP
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293 #define SDL_strcmp strcmp
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294 #else
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295 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
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296 #endif
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297
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298 #ifdef HAVE_STRNCMP
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299 #define SDL_strncmp strncmp
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300 #else
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301 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
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302 #endif
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303
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304 #if defined(HAVE_STRICMP) && !defined(HAVE_STRCASECMP)
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305 #define strcasecmp stricmp
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306 #define HAVE_STRCASECMP
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307 #endif
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308 #ifdef HAVE_STRCASECMP
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309 #define SDL_strcasecmp strcasecmp
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310 #else
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311 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
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312 #endif
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313
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314 #ifdef HAVE_SSCANF
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315 #define SDL_sscanf sscanf
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316 #else
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317 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
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318 #endif
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319
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320 #ifdef HAVE_SNPRINTF
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321 #define SDL_snprintf snprintf
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322 #else
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323 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
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324 #endif
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325
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326 #ifdef HAVE_VSNPRINTF
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327 #define SDL_vsnprintf vsnprintf
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328 #else
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329 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
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330 #endif
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331
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332 /* Ends C function definitions when using C++ */
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333 #ifdef __cplusplus
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334 }
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335 #endif
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336 #include "close_code.h"
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337
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338 #endif /* _SDL_string_h */