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annotate include/SDL_log.h @ 5230:5d01d426f2ea

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It's now possible to disable the fast atomic operations, at a huge performance penalty.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 07 Feb 2011 22:57:33 -0800
parents 2ee8112bfc6b
children 1e28342cb15d
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 /**
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24 * \file SDL_log.h
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25 *
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26 * Simple log messages with categories and priorities.
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27 *
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28 * By default logs are quiet, but if you're debugging SDL you might want:
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29 *
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30 * SDL_LogSetAllPriority(SDL_LOG_PRIORITY_WARN);
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31 *
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32 * Here's where the messages go on different platforms:
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33 * Windows: debug output stream
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34 * Android: log output
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35 * Others: standard error output (stderr)
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36 */
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37
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38 #ifndef _SDL_log_h
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39 #define _SDL_log_h
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40
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41 #include "SDL_stdinc.h"
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42
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43 #include "begin_code.h"
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44 /* Set up for C function definitions, even when using C++ */
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45 #ifdef __cplusplus
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46 /* *INDENT-OFF* */
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47 extern "C" {
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48 /* *INDENT-ON* */
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49 #endif
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50
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51
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52 /**
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53 * \brief The maximum size of a log message
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54 *
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55 * Messages longer than the maximum size will be truncated
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56 */
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57 #define SDL_MAX_LOG_MESSAGE 4096
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58
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59 /**
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60 * \brief The predefined log categories
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61 *
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62 * By default the application category is enabled at the INFO level,
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63 * and all other categories are enabled at the CRITICAL level.
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64 */
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65 enum
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66 {
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67 SDL_LOG_CATEGORY_APPLICATION,
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68 SDL_LOG_CATEGORY_ERROR,
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69 SDL_LOG_CATEGORY_SYSTEM,
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70 SDL_LOG_CATEGORY_AUDIO,
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71 SDL_LOG_CATEGORY_VIDEO,
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72 SDL_LOG_CATEGORY_RENDER,
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73 SDL_LOG_CATEGORY_INPUT,
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74
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75 /* Reserved for future SDL library use */
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76 SDL_LOG_CATEGORY_RESERVED1,
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77 SDL_LOG_CATEGORY_RESERVED2,
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78 SDL_LOG_CATEGORY_RESERVED3,
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79 SDL_LOG_CATEGORY_RESERVED4,
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80 SDL_LOG_CATEGORY_RESERVED5,
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81 SDL_LOG_CATEGORY_RESERVED6,
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82 SDL_LOG_CATEGORY_RESERVED7,
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83 SDL_LOG_CATEGORY_RESERVED8,
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84 SDL_LOG_CATEGORY_RESERVED9,
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85 SDL_LOG_CATEGORY_RESERVED10,
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86
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87 /* Beyond this point is reserved for application use, e.g.
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88 enum {
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89 MYAPP_CATEGORY_AWESOME1 = SDL_LOG_CATEGORY_CUSTOM,
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90 MYAPP_CATEGORY_AWESOME2,
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91 MYAPP_CATEGORY_AWESOME3,
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92 ...
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93 };
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94 */
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95 SDL_LOG_CATEGORY_CUSTOM,
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96 };
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97
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98 /**
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99 * \brief The predefined log priorities
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100 */
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101 typedef enum
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102 {
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103 SDL_LOG_PRIORITY_VERBOSE = 1,
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104 SDL_LOG_PRIORITY_DEBUG,
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105 SDL_LOG_PRIORITY_INFO,
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106 SDL_LOG_PRIORITY_WARN,
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107 SDL_LOG_PRIORITY_ERROR,
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108 SDL_LOG_PRIORITY_CRITICAL,
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109 SDL_NUM_LOG_PRIORITIES
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110 } SDL_LogPriority;
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111
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112
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113 /**
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114 * \brief Set the priority of all log categories
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115 */
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116 extern DECLSPEC void SDLCALL SDL_LogSetAllPriority(SDL_LogPriority priority);
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117
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118 /**
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119 * \brief Set the priority of a particular log category
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120 */
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121 extern DECLSPEC void SDLCALL SDL_LogSetPriority(int category,
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122 SDL_LogPriority priority);
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123
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124 /**
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125 * \brief Set the priority of a particular log category
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126 */
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127 extern DECLSPEC SDL_LogPriority SDLCALL SDL_LogGetPriority(int category);
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128
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129 /**
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130 * \brief Reset all priorities to default.
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131 *
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132 * \note This is called in SDL_Quit().
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133 */
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134 extern DECLSPEC void SDLCALL SDL_LogResetPriorities(void);
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135
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136 /**
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137 * \brief Log a message with SDL_LOG_CATEGORY_APPLICATION and SDL_LOG_PRIORITY_INFO
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138 */
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139 extern DECLSPEC void SDLCALL SDL_Log(const char *fmt, ...);
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140
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141 /**
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142 * \brief Log a message with SDL_LOG_PRIORITY_VERBOSE
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143 */
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144 extern DECLSPEC void SDLCALL SDL_LogVerbose(int category, const char *fmt, ...);
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145
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146 /**
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147 * \brief Log a message with SDL_LOG_PRIORITY_INFO
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148 */
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149 extern DECLSPEC void SDLCALL SDL_LogInfo(int category, const char *fmt, ...);
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150
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151 /**
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152 * \brief Log a message with SDL_LOG_PRIORITY_WARN
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153 */
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154 extern DECLSPEC void SDLCALL SDL_LogWarn(int category, const char *fmt, ...);
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155
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156 /**
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157 * \brief Log a message with SDL_LOG_PRIORITY_ERROR
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158 */
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159 extern DECLSPEC void SDLCALL SDL_LogError(int category, const char *fmt, ...);
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160
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161 /**
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162 * \brief Log a message with SDL_LOG_PRIORITY_CRITICAL
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163 */
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164 extern DECLSPEC void SDLCALL SDL_LogCritical(int category, const char *fmt, ...);
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165
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166 /**
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167 * \brief Log a message with the specified category and priority.
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168 */
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169 extern DECLSPEC void SDLCALL SDL_LogMessage(int category,
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170 SDL_LogPriority priority,
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171 const char *fmt, ...);
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172
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173 /**
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174 * \brief Log a message with the specified category and priority.
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175 */
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176 extern DECLSPEC void SDLCALL SDL_LogMessageV(int category,
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177 SDL_LogPriority priority,
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178 const char *fmt, va_list ap);
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179
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180
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181 /* Ends C function definitions when using C++ */
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182 #ifdef __cplusplus
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183 /* *INDENT-OFF* */
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184 }
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185 /* *INDENT-ON* */
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186 #endif
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187 #include "close_code.h"
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188
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189 #endif /* _SDL_log_h */
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190
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191 /* vi: set ts=4 sw=4 expandtab: */