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Rev | Author | Line No. | Line |
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5205 | clevermous | 1 | /* |
2 | ** $Id: luaconf.h,v 1.170 2011/12/06 16:58:36 roberto Exp $ |
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3 | ** Configuration file for Lua |
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4 | ** See Copyright Notice in lua.h |
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5 | */ |
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6 | |||
7 | |||
8 | #ifndef lconfig_h |
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9 | #define lconfig_h |
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10 | |||
11 | #include |
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12 | #include |
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13 | |||
14 | /* |
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15 | ** ================================================================== |
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16 | ** Search for "@@" to find all configurable definitions. |
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17 | ** =================================================================== |
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18 | */ |
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19 | |||
20 | |||
21 | /* |
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22 | @@ LUA_ANSI controls the use of non-ansi features. |
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23 | ** CHANGE it (define it) if you want Lua to avoid the use of any |
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24 | ** non-ansi feature or library. |
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25 | */ |
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26 | #if !defined(LUA_ANSI) && defined(__STRICT_ANSI__) |
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27 | #define LUA_ANSI |
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28 | #endif |
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29 | |||
30 | |||
31 | #if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE) |
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32 | #define LUA_WIN /* enable goodies for regular Windows platforms */ |
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33 | #endif |
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34 | |||
35 | #if defined(LUA_WIN) |
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36 | #define LUA_DL_DLL |
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37 | #define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ |
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38 | #endif |
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39 | |||
40 | |||
41 | |||
42 | #if defined(LUA_USE_LINUX) |
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43 | #define LUA_USE_POSIX |
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44 | #define LUA_USE_DLOPEN /* needs an extra library: -ldl */ |
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45 | #define LUA_USE_READLINE /* needs some extra libraries */ |
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46 | #define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */ |
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47 | #define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ |
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48 | #define LUA_USE_LONGLONG /* assume support for long long */ |
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49 | #endif |
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50 | |||
51 | #if defined(LUA_USE_MACOSX) |
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52 | #define LUA_USE_POSIX |
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53 | #define LUA_USE_DLOPEN /* does not need -ldl */ |
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54 | #define LUA_USE_READLINE /* needs an extra library: -lreadline */ |
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55 | #define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */ |
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56 | #define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ |
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57 | #define LUA_USE_LONGLONG /* assume support for long long */ |
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58 | #endif |
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59 | |||
60 | |||
61 | |||
62 | /* |
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63 | @@ LUA_USE_POSIX includes all functionality listed as X/Open System |
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64 | @* Interfaces Extension (XSI). |
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65 | ** CHANGE it (define it) if your system is XSI compatible. |
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66 | */ |
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67 | #if defined(LUA_USE_POSIX) |
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68 | #define LUA_USE_MKSTEMP |
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69 | #define LUA_USE_ISATTY |
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70 | #define LUA_USE_POPEN |
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71 | #define LUA_USE_ULONGJMP |
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72 | #define LUA_USE_GMTIME_R |
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73 | #endif |
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74 | |||
75 | |||
76 | |||
77 | /* |
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78 | @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for |
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79 | @* Lua libraries. |
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80 | @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for |
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81 | @* C libraries. |
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82 | ** CHANGE them if your machine has a non-conventional directory |
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83 | ** hierarchy or if you want to install your libraries in |
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84 | ** non-conventional directories. |
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85 | */ |
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86 | #if defined(_WIN32) /* { */ |
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87 | /* |
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88 | ** In Windows, any exclamation mark ('!') in the path is replaced by the |
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89 | ** path of the directory of the executable file of the current process. |
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90 | */ |
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91 | #define LUA_LDIR "!\\lua\\" |
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92 | #define LUA_CDIR "!\\" |
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93 | #define LUA_PATH_DEFAULT \ |
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94 | LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ |
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95 | LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" ".\\?.lua" |
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96 | #define LUA_CPATH_DEFAULT \ |
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97 | LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll;" ".\\?.dll" |
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98 | |||
99 | #else /* }{ */ |
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100 | |||
101 | #define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR "/" |
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102 | #define LUA_ROOT "/usr/local/" |
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103 | #define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR |
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104 | #define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR |
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105 | #define LUA_PATH_DEFAULT \ |
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106 | LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ |
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107 | LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" "./?.lua" |
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108 | #define LUA_CPATH_DEFAULT \ |
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109 | LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" |
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110 | #endif /* } */ |
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111 | |||
112 | |||
113 | /* |
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114 | @@ LUA_DIRSEP is the directory separator (for submodules). |
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115 | ** CHANGE it if your machine does not use "/" as the directory separator |
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116 | ** and is not Windows. (On Windows Lua automatically uses "\".) |
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117 | */ |
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118 | #if defined(_WIN32) |
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119 | #define LUA_DIRSEP "\\" |
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120 | #else |
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121 | #define LUA_DIRSEP "/" |
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122 | #endif |
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123 | |||
124 | |||
125 | /* |
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126 | @@ LUA_ENV is the name of the variable that holds the current |
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127 | @@ environment, used to access global names. |
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128 | ** CHANGE it if you do not like this name. |
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129 | */ |
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130 | #define LUA_ENV "_ENV" |
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131 | |||
132 | |||
133 | /* |
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134 | @@ LUA_API is a mark for all core API functions. |
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135 | @@ LUALIB_API is a mark for all auxiliary library functions. |
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136 | @@ LUAMOD_API is a mark for all standard library opening functions. |
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137 | ** CHANGE them if you need to define those functions in some special way. |
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138 | ** For instance, if you want to create one Windows DLL with the core and |
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139 | ** the libraries, you may want to use the following definition (define |
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140 | ** LUA_BUILD_AS_DLL to get it). |
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141 | */ |
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142 | #if defined(LUA_BUILD_AS_DLL) /* { */ |
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143 | |||
144 | #if defined(LUA_CORE) || defined(LUA_LIB) /* { */ |
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145 | #define LUA_API __declspec(dllexport) |
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146 | #else /* }{ */ |
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147 | #define LUA_API __declspec(dllimport) |
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148 | #endif /* } */ |
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149 | |||
150 | #else /* }{ */ |
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151 | |||
152 | #define LUA_API extern |
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153 | |||
154 | #endif /* } */ |
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155 | |||
156 | |||
157 | /* more often than not the libs go together with the core */ |
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158 | #define LUALIB_API LUA_API |
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159 | #define LUAMOD_API LUALIB_API |
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160 | |||
161 | |||
162 | /* |
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163 | @@ LUAI_FUNC is a mark for all extern functions that are not to be |
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164 | @* exported to outside modules. |
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165 | @@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables |
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166 | @* that are not to be exported to outside modules (LUAI_DDEF for |
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167 | @* definitions and LUAI_DDEC for declarations). |
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168 | ** CHANGE them if you need to mark them in some special way. Elf/gcc |
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169 | ** (versions 3.2 and later) mark them as "hidden" to optimize access |
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170 | ** when Lua is compiled as a shared library. Not all elf targets support |
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171 | ** this attribute. Unfortunately, gcc does not offer a way to check |
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172 | ** whether the target offers that support, and those without support |
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173 | ** give a warning about it. To avoid these warnings, change to the |
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174 | ** default definition. |
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175 | */ |
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176 | #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ |
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177 | defined(__ELF__) /* { */ |
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178 | #define LUAI_FUNC __attribute__((visibility("hidden"))) extern |
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179 | #define LUAI_DDEC LUAI_FUNC |
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180 | #define LUAI_DDEF /* empty */ |
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181 | |||
182 | #else /* }{ */ |
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183 | #define LUAI_FUNC extern |
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184 | #define LUAI_DDEC extern |
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185 | #define LUAI_DDEF /* empty */ |
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186 | #endif /* } */ |
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187 | |||
188 | |||
189 | |||
190 | /* |
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191 | @@ LUA_QL describes how error messages quote program elements. |
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192 | ** CHANGE it if you want a different appearance. |
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193 | */ |
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194 | #define LUA_QL(x) "'" x "'" |
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195 | #define LUA_QS LUA_QL("%s") |
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196 | |||
197 | |||
198 | /* |
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199 | @@ LUA_IDSIZE gives the maximum size for the description of the source |
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200 | @* of a function in debug information. |
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201 | ** CHANGE it if you want a different size. |
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202 | */ |
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203 | #define LUA_IDSIZE 60 |
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204 | |||
205 | |||
206 | /* |
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207 | @@ luai_writestring/luai_writeline define how 'print' prints its results. |
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208 | ** They are only used in libraries and the stand-alone program. (The #if |
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209 | ** avoids including 'stdio.h' everywhere.) |
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210 | */ |
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211 | #if defined(LUA_LIB) || defined(lua_c) |
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212 | #include |
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213 | #define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout) |
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214 | #define luai_writeline() (luai_writestring("\n", 1), fflush(stdout)) |
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215 | #endif |
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216 | |||
217 | /* |
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218 | @@ luai_writestringerror defines how to print error messages. |
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219 | ** (A format string with one argument is enough for Lua...) |
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220 | */ |
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221 | #define luai_writestringerror(s,p) \ |
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222 | (fprintf(stderr, (s), (p)), fflush(stderr)) |
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223 | |||
224 | |||
225 | |||
226 | |||
227 | |||
228 | /* |
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229 | ** {================================================================== |
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230 | ** Compatibility with previous versions |
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231 | ** =================================================================== |
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232 | */ |
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233 | |||
234 | /* |
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235 | @@ LUA_COMPAT_ALL controls all compatibility options. |
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236 | ** You can define it to get all options, or change specific options |
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237 | ** to fit your specific needs. |
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238 | */ |
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239 | #if defined(LUA_COMPAT_ALL) /* { */ |
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240 | |||
241 | /* |
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242 | @@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. |
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243 | ** You can replace it with 'table.unpack'. |
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244 | */ |
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245 | #define LUA_COMPAT_UNPACK |
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246 | |||
247 | /* |
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248 | @@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. |
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249 | ** You can replace it with 'package.searchers'. |
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250 | */ |
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251 | #define LUA_COMPAT_LOADERS |
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252 | |||
253 | /* |
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254 | @@ macro 'lua_cpcall' emulates deprecated function lua_cpcall. |
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255 | ** You can call your C function directly (with light C functions). |
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256 | */ |
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257 | #define lua_cpcall(L,f,u) \ |
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258 | (lua_pushcfunction(L, (f)), \ |
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259 | lua_pushlightuserdata(L,(u)), \ |
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260 | lua_pcall(L,1,0,0)) |
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261 | |||
262 | |||
263 | /* |
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264 | @@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. |
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265 | ** You can rewrite 'log10(x)' as 'log(x, 10)'. |
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266 | */ |
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267 | #define LUA_COMPAT_LOG10 |
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268 | |||
269 | /* |
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270 | @@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base |
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271 | ** library. You can rewrite 'loadstring(s)' as 'load(s)'. |
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272 | */ |
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273 | #define LUA_COMPAT_LOADSTRING |
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274 | |||
275 | /* |
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276 | @@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. |
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277 | */ |
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278 | #define LUA_COMPAT_MAXN |
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279 | |||
280 | /* |
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281 | @@ The following macros supply trivial compatibility for some |
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282 | ** changes in the API. The macros themselves document how to |
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283 | ** change your code to avoid using them. |
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284 | */ |
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285 | #define lua_strlen(L,i) lua_rawlen(L, (i)) |
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286 | |||
287 | #define lua_objlen(L,i) lua_rawlen(L, (i)) |
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288 | |||
289 | #define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) |
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290 | #define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) |
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291 | |||
292 | /* |
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293 | @@ LUA_COMPAT_MODULE controls compatibility with previous |
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294 | ** module functions 'module' (Lua) and 'luaL_register' (C). |
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295 | */ |
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296 | #define LUA_COMPAT_MODULE |
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297 | |||
298 | #endif /* } */ |
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299 | |||
300 | /* }================================================================== */ |
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301 | |||
302 | |||
303 | |||
304 | /* |
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305 | @@ LUAI_BITSINT defines the number of bits in an int. |
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306 | ** CHANGE here if Lua cannot automatically detect the number of bits of |
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307 | ** your machine. Probably you do not need to change this. |
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308 | */ |
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309 | /* avoid overflows in comparison */ |
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310 | #if INT_MAX-20 < 32760 /* { */ |
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311 | #define LUAI_BITSINT 16 |
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312 | #elif INT_MAX > 2147483640L /* }{ */ |
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313 | /* int has at least 32 bits */ |
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314 | #define LUAI_BITSINT 32 |
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315 | #else /* }{ */ |
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316 | #error "you must define LUA_BITSINT with number of bits in an integer" |
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317 | #endif /* } */ |
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318 | |||
319 | |||
320 | /* |
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321 | @@ LUA_INT32 is an signed integer with exactly 32 bits. |
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322 | @@ LUAI_UMEM is an unsigned integer big enough to count the total |
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323 | @* memory used by Lua. |
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324 | @@ LUAI_MEM is a signed integer big enough to count the total memory |
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325 | @* used by Lua. |
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326 | ** CHANGE here if for some weird reason the default definitions are not |
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327 | ** good enough for your machine. Probably you do not need to change |
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328 | ** this. |
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329 | */ |
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330 | #if LUAI_BITSINT >= 32 /* { */ |
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331 | #define LUA_INT32 int |
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332 | #define LUAI_UMEM size_t |
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333 | #define LUAI_MEM ptrdiff_t |
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334 | #else /* }{ */ |
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335 | /* 16-bit ints */ |
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336 | #define LUA_INT32 long |
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337 | #define LUAI_UMEM unsigned long |
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338 | #define LUAI_MEM long |
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339 | #endif /* } */ |
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340 | |||
341 | |||
342 | /* |
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343 | @@ LUAI_MAXSTACK limits the size of the Lua stack. |
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344 | ** CHANGE it if you need a different limit. This limit is arbitrary; |
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345 | ** its only purpose is to stop Lua to consume unlimited stack |
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346 | ** space (and to reserve some numbers for pseudo-indices). |
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347 | */ |
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348 | #if LUAI_BITSINT >= 32 |
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349 | #define LUAI_MAXSTACK 1000000 |
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350 | #else |
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351 | #define LUAI_MAXSTACK 15000 |
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352 | #endif |
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353 | |||
354 | /* reserve some space for error handling */ |
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355 | #define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000) |
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356 | |||
357 | |||
358 | |||
359 | |||
360 | /* |
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361 | @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. |
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362 | ** CHANGE it if it uses too much C-stack space. |
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363 | */ |
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364 | #define LUAL_BUFFERSIZE BUFSIZ |
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365 | |||
366 | |||
367 | |||
368 | |||
369 | /* |
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370 | ** {================================================================== |
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371 | @@ LUA_NUMBER is the type of numbers in Lua. |
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372 | ** CHANGE the following definitions only if you want to build Lua |
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373 | ** with a number type different from double. You may also need to |
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374 | ** change lua_number2int & lua_number2integer. |
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375 | ** =================================================================== |
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376 | */ |
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377 | |||
378 | #define LUA_NUMBER_DOUBLE |
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379 | #define LUA_NUMBER double |
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380 | |||
381 | /* |
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382 | @@ LUAI_UACNUMBER is the result of an 'usual argument conversion' |
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383 | @* over a number. |
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384 | */ |
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385 | #define LUAI_UACNUMBER double |
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386 | |||
387 | |||
388 | /* |
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389 | @@ LUA_NUMBER_SCAN is the format for reading numbers. |
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390 | @@ LUA_NUMBER_FMT is the format for writing numbers. |
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391 | @@ lua_number2str converts a number to a string. |
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392 | @@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. |
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393 | */ |
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394 | #define LUA_NUMBER_SCAN "%lf" |
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395 | #define LUA_NUMBER_FMT "%.14g" |
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396 | #define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) |
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397 | #define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ |
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398 | |||
399 | |||
400 | /* |
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401 | @@ lua_str2number converts a decimal numeric string to a number. |
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402 | @@ lua_strx2number converts an hexadecimal numeric string to a number. |
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403 | ** In C99, 'strtod' do both conversions. C89, however, has no function |
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404 | ** to convert floating hexadecimal strings to numbers. For these |
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405 | ** systems, you can leave 'lua_strx2number' undefined and Lua will |
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406 | ** provide its own implementation. |
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407 | */ |
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408 | #define lua_str2number(s,p) strtod((s), (p)) |
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409 | |||
410 | #if defined(LUA_USE_STRTODHEX) |
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411 | #define lua_strx2number(s,p) strtod((s), (p)) |
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412 | #endif |
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413 | |||
414 | |||
415 | /* |
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416 | @@ The luai_num* macros define the primitive operations over numbers. |
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417 | */ |
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418 | |||
419 | /* the following operations need the math library */ |
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420 | #if defined(lobject_c) || defined(lvm_c) |
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421 | #include |
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422 | #define luai_nummod(L,a,b) ((a) - floor((a)/(b))*(b)) |
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423 | #define luai_numpow(L,a,b) (pow(a,b)) |
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424 | #endif |
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425 | |||
426 | /* these are quite standard operations */ |
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427 | #if defined(LUA_CORE) |
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428 | #define luai_numadd(L,a,b) ((a)+(b)) |
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429 | #define luai_numsub(L,a,b) ((a)-(b)) |
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430 | #define luai_nummul(L,a,b) ((a)*(b)) |
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431 | #define luai_numdiv(L,a,b) ((a)/(b)) |
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432 | #define luai_numunm(L,a) (-(a)) |
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433 | #define luai_numeq(a,b) ((a)==(b)) |
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434 | #define luai_numlt(L,a,b) ((a)<(b)) |
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435 | #define luai_numle(L,a,b) ((a)<=(b)) |
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436 | #define luai_numisnan(L,a) (!luai_numeq((a), (a))) |
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437 | #endif |
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438 | |||
439 | |||
440 | |||
441 | /* |
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442 | @@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. |
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443 | ** CHANGE that if ptrdiff_t is not adequate on your machine. (On most |
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444 | ** machines, ptrdiff_t gives a good choice between int or long.) |
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445 | */ |
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446 | #define LUA_INTEGER ptrdiff_t |
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447 | |||
448 | /* |
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449 | @@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned. |
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450 | ** It must have at least 32 bits. |
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451 | */ |
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452 | #define LUA_UNSIGNED unsigned LUA_INT32 |
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453 | |||
454 | |||
455 | #if defined(LUA_CORE) /* { */ |
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456 | |||
457 | #if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */ |
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458 | |||
459 | /* On a Microsoft compiler on a Pentium, use assembler to avoid clashes |
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460 | with a DirectX idiosyncrasy */ |
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461 | #if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */ |
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462 | |||
463 | #define MS_ASMTRICK |
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464 | |||
465 | #else /* }{ */ |
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466 | /* the next definition uses a trick that should work on any machine |
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467 | using IEEE754 with a 32-bit integer type */ |
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468 | |||
469 | #define LUA_IEEE754TRICK |
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470 | |||
471 | /* |
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472 | @@ LUA_IEEEENDIAN is the endianness of doubles in your machine |
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473 | ** (0 for little endian, 1 for big endian); if not defined, Lua will |
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474 | ** check it dynamically. |
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475 | */ |
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476 | /* check for known architectures */ |
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477 | #if defined(__i386__) || defined(__i386) || defined(__X86__) || \ |
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478 | defined (__x86_64) |
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479 | #define LUA_IEEEENDIAN 0 |
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480 | #elif defined(__POWERPC__) || defined(__ppc__) |
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481 | #define LUA_IEEEENDIAN 1 |
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482 | #endif |
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483 | |||
484 | #endif /* } */ |
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485 | |||
486 | #endif /* } */ |
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487 | |||
488 | #endif /* } */ |
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489 | |||
490 | /* }================================================================== */ |
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491 | |||
492 | |||
493 | /* |
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494 | @@ LUA_NANTRICK_LE/LUA_NANTRICK_BE controls the use of a trick to |
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495 | ** pack all types into a single double value, using NaN values to |
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496 | ** represent non-number values. The trick only works on 32-bit machines |
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497 | ** (ints and pointers are 32-bit values) with numbers represented as |
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498 | ** IEEE 754-2008 doubles with conventional endianess (12345678 or |
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499 | ** 87654321), in CPUs that do not produce signaling NaN values (all NaNs |
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500 | ** are quiet). |
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501 | */ |
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502 | #if defined(LUA_CORE) && \ |
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503 | defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */ |
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504 | |||
505 | /* little-endian architectures that satisfy those conditions */ |
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506 | #if defined(__i386__) || defined(__i386) || defined(__X86__) || \ |
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507 | defined(_M_IX86) |
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508 | |||
509 | #define LUA_NANTRICK_LE |
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510 | |||
511 | #endif |
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512 | |||
513 | #endif /* } */ |
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514 | |||
515 | |||
516 | |||
517 | |||
518 | /* =================================================================== */ |
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519 | |||
520 | /* |
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521 | ** Local configuration. You can use this space to add your redefinitions |
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522 | ** without modifying the main part of the file. |
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523 | */ |
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524 | |||
525 | |||
526 | |||
527 | #endif=(b)) |
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528 |