1 cdefs.h |
1 /*- |
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2 * © Portions copyright (c) 2005 Nokia Corporation. All rights reserved. |
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3 * Copyright (c) 1991, 1993 |
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4 * The Regents of the University of California. All rights reserved. |
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5 * |
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6 * This code is derived from software contributed to Berkeley by |
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7 * Berkeley Software Design, Inc. |
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8 * |
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9 * Redistribution and use in source and binary forms, with or without |
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10 * modification, are permitted provided that the following conditions |
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11 * are met: |
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12 * 1. Redistributions of source code must retain the above copyright |
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13 * notice, this list of conditions and the following disclaimer. |
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14 * 2. Redistributions in binary form must reproduce the above copyright |
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15 * notice, this list of conditions and the following disclaimer in the |
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16 * documentation and/or other materials provided with the distribution. |
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17 * 4. Neither the name of the University nor the names of its contributors |
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18 * may be used to endorse or promote products derived from this software |
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19 * without specific prior written permission. |
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20 * |
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21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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31 * SUCH DAMAGE. |
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32 * © Portions copyright (c) 2007-2008 Symbian Software Ltd. All rights reserved. |
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33 * @(#)cdefs.h 8.8 (Berkeley) 1/9/95 |
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34 * $FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $ |
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35 */ |
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36 |
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37 #ifndef _SYS_CDEFS_H_ |
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38 #define _SYS_CDEFS_H_ |
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39 |
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40 #ifdef __SYMBIAN32__ |
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41 #include <_ansi.h> |
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42 #endif |
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43 |
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44 #if defined(__cplusplus) |
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45 #define __BEGIN_DECLS extern "C" { |
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46 #define __END_DECLS } |
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47 #else |
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48 #define __BEGIN_DECLS |
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49 #define __END_DECLS |
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50 #endif |
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51 |
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52 /* |
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53 * This code has been put in place to help reduce the addition of |
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54 * compiler specific defines in FreeBSD code. It helps to aid in |
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55 * having a compiler-agnostic source tree. |
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56 */ |
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57 |
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58 #if defined(__GNUC__) || defined(__INTEL_COMPILER) |
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59 |
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60 #if __GNUC__ >= 3 || defined(__INTEL_COMPILER) |
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61 #define __GNUCLIKE_ASM 3 |
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62 #define __GNUCLIKE_MATH_BUILTIN_CONSTANTS |
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63 #else |
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64 #define __GNUCLIKE_ASM 2 |
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65 #endif |
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66 #define __GNUCLIKE___TYPEOF 1 |
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67 #define __GNUCLIKE___OFFSETOF 1 |
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68 #define __GNUCLIKE___SECTION 1 |
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69 |
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70 #define __GNUCLIKE_ATTRIBUTE_MODE_DI 1 |
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71 |
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72 #ifndef __INTEL_COMPILER |
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73 # define __GNUCLIKE_CTOR_SECTION_HANDLING 1 |
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74 #endif |
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75 |
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76 #define __GNUCLIKE_BUILTIN_CONSTANT_P 1 |
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77 # if defined(__INTEL_COMPILER) && defined(__cplusplus) \ |
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78 && __INTEL_COMPILER < 800 |
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79 # undef __GNUCLIKE_BUILTIN_CONSTANT_P |
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80 # endif |
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81 |
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82 #if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER) |
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83 # define __GNUCLIKE_BUILTIN_VARARGS 1 |
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84 # define __GNUCLIKE_BUILTIN_STDARG 1 |
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85 # define __GNUCLIKE_BUILTIN_VAALIST 1 |
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86 #endif |
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87 |
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88 #if defined(__GNUC__) |
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89 # define __GNUC_VA_LIST_COMPATIBILITY 1 |
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90 #endif |
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91 |
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92 #ifndef __INTEL_COMPILER |
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93 # define __GNUCLIKE_BUILTIN_NEXT_ARG 1 |
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94 # define __GNUCLIKE_MATH_BUILTIN_RELOPS |
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95 #endif |
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96 |
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97 #define __GNUCLIKE_BUILTIN_MEMCPY 1 |
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98 |
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99 /* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */ |
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100 #define __CC_SUPPORTS_INLINE 1 |
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101 #define __CC_SUPPORTS___INLINE 1 |
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102 #define __CC_SUPPORTS___INLINE__ 1 |
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103 |
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104 #define __CC_SUPPORTS___FUNC__ 1 |
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105 #define __CC_SUPPORTS_WARNING 1 |
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106 |
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107 #define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */ |
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108 |
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109 #define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1 |
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110 |
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111 /* XXX: sys/dev/mpt/mpilib/mpi_type.h uses it, someone should review it */ |
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112 #define __CC_INT_IS_32BIT 1 |
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113 |
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114 #endif /* __GNUC__ || __INTEL_COMPILER */ |
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115 |
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116 /* |
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117 * Macro to test if we're using a specific version of gcc or later. |
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118 */ |
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119 #if defined(__GNUC__) && !defined(__INTEL_COMPILER) |
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120 #define __GNUC_PREREQ__(ma, mi) \ |
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121 (__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi)) |
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122 #else |
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123 #define __GNUC_PREREQ__(ma, mi) 0 |
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124 #endif |
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125 |
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126 /* |
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127 * The __CONCAT macro is used to concatenate parts of symbol names, e.g. |
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128 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. |
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129 * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI |
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130 * mode -- there must be no spaces between its arguments, and for nested |
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131 * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also |
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132 * concatenate double-quoted strings produced by the __STRING macro, but |
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133 * this only works with ANSI C. |
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134 * |
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135 * __XSTRING is like __STRING, but it expands any macros in its argument |
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136 * first. It is only available with ANSI C. |
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137 */ |
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138 #if defined(__STDC__) || defined(__cplusplus) |
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139 #define __P(protos) protos /* full-blown ANSI C */ |
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140 #define __CONCAT1(x,y) x ## y |
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141 #define __CONCAT(x,y) __CONCAT1(x,y) |
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142 #define __STRING(x) #x /* stringify without expanding x */ |
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143 #define __XSTRING(x) __STRING(x) /* expand x, then stringify */ |
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144 |
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145 #define __const const /* define reserved names to standard */ |
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146 #define __signed signed |
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147 #define __volatile volatile |
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148 #if defined(__cplusplus) |
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149 #define __inline inline /* convert to C++ keyword */ |
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150 #else |
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151 #if !(defined(__CC_SUPPORTS___INLINE)) |
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152 #define __inline /* delete GCC keyword */ |
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153 #endif /* ! __CC_SUPPORTS___INLINE */ |
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154 #endif /* !__cplusplus */ |
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155 |
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156 #else /* !(__STDC__ || __cplusplus) */ |
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157 #define __P(protos) () /* traditional C preprocessor */ |
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158 #define __CONCAT(x,y) x/**/y |
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159 #define __STRING(x) "x" |
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160 |
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161 #if !defined(__CC_SUPPORTS___INLINE) |
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162 #define __const /* delete pseudo-ANSI C keywords */ |
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163 #define __inline |
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164 #define __signed |
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165 #define __volatile |
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166 /* |
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167 * In non-ANSI C environments, new programs will want ANSI-only C keywords |
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168 * deleted from the program and old programs will want them left alone. |
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169 * When using a compiler other than gcc, programs using the ANSI C keywords |
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170 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. |
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171 * When using "gcc -traditional", we assume that this is the intent; if |
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172 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. |
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173 */ |
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174 #ifndef NO_ANSI_KEYWORDS |
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175 #define const /* delete ANSI C keywords */ |
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176 #define inline |
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177 #define signed |
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178 #define volatile |
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179 #endif /* !NO_ANSI_KEYWORDS */ |
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180 #endif /* !__CC_SUPPORTS___INLINE */ |
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181 #endif /* !(__STDC__ || __cplusplus) */ |
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182 |
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183 /* |
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184 * Compiler-dependent macros to help declare dead (non-returning) and |
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185 * pure (no side effects) functions, and unused variables. They are |
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186 * null except for versions of gcc that are known to support the features |
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187 * properly (old versions of gcc-2 supported the dead and pure features |
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188 * in a different (wrong) way). If we do not provide an implementation |
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189 * for a given compiler, let the compile fail if it is told to use |
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190 * a feature that we cannot live without. |
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191 */ |
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192 #ifdef lint |
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193 #define __dead2 |
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194 #define __pure2 |
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195 #define __unused |
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196 #define __packed |
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197 #define __aligned(x) |
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198 #define __section(x) |
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199 #else |
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200 #if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER) |
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201 #define __dead2 |
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202 #define __pure2 |
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203 #define __unused |
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204 #endif |
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205 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER) |
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206 #define __dead2 __attribute__((__noreturn__)) |
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207 #define __pure2 __attribute__((__const__)) |
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208 #define __unused |
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209 /* XXX Find out what to do for __packed, __aligned and __section */ |
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210 #endif |
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211 #if __GNUC_PREREQ__(2, 7) |
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212 #define __dead2 __attribute__((__noreturn__)) |
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213 #define __pure2 __attribute__((__const__)) |
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214 #define __unused __attribute__((__unused__)) |
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215 #define __used __attribute__((__used__)) |
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216 #define __packed __attribute__((__packed__)) |
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217 #define __aligned(x) __attribute__((__aligned__(x))) |
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218 #define __section(x) __attribute__((__section__(x))) |
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219 #endif |
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220 #if defined(__INTEL_COMPILER) |
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221 #define __dead2 __attribute__((__noreturn__)) |
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222 #define __pure2 __attribute__((__const__)) |
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223 #define __unused __attribute__((__unused__)) |
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224 #define __used __attribute__((__used__)) |
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225 #define __packed __attribute__((__packed__)) |
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226 #define __aligned(x) __attribute__((__aligned__(x))) |
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227 #define __section(x) __attribute__((__section__(x))) |
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228 #endif |
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229 #endif |
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230 |
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231 #if __GNUC_PREREQ__(2, 96) |
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232 #define __pure __attribute__((__pure__)) |
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233 #else |
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234 #define __pure |
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235 #endif |
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236 |
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237 #if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800) |
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238 #define __always_inline __attribute__((__always_inline__)) |
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239 #else |
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240 #define __always_inline |
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241 #endif |
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242 |
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243 #if __GNUC_PREREQ__(3, 3) |
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244 #define __nonnull(x) __attribute__((__nonnull__(x))) |
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245 #else |
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246 #define __nonnull(x) |
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247 #endif |
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248 |
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249 /* XXX: should use `#if __STDC_VERSION__ < 199901'. */ |
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250 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) |
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251 #define __func__ NULL |
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252 #endif |
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253 |
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254 #if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901 |
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255 #ifdef __SYMBIAN32__ |
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256 #ifndef __LONG_LONG_SUPPORTED |
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257 #define __LONG_LONG_SUPPORTED |
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258 #endif /* __LONG_LONG_SUPPORTED */ |
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259 #else |
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260 #define __LONG_LONG_SUPPORTED |
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261 #endif /* __SYMBIAN32__ */ |
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262 #endif |
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263 |
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264 #ifdef __SYMBIAN32__ |
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265 #if ((defined(__ARMCC__) && (__ARMCC_VERSION > 220000) ) || (defined(__WINSCW__))) |
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266 #ifndef __LONG_LONG_SUPPORTED |
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267 #define __LONG_LONG_SUPPORTED |
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268 #endif /* __LONG_LONG_SUPPORTED */ |
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269 #endif |
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270 #endif /*__SYMBIAN32__*/ |
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271 |
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272 |
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273 /* |
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274 * GCC 2.95 provides `__restrict' as an extension to C90 to support the |
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275 * C99-specific `restrict' type qualifier. We happen to use `__restrict' as |
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276 * a way to define the `restrict' type qualifier without disturbing older |
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277 * software that is unaware of C99 keywords. |
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278 */ |
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279 #if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95) |
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280 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 |
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281 #define __restrict |
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282 #else |
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283 #define __restrict restrict |
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284 #endif |
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285 #endif |
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286 |
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287 /* |
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288 * GNU C version 2.96 adds explicit branch prediction so that |
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289 * the CPU back-end can hint the processor and also so that |
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290 * code blocks can be reordered such that the predicted path |
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291 * sees a more linear flow, thus improving cache behavior, etc. |
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292 * |
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293 * The following two macros provide us with a way to utilize this |
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294 * compiler feature. Use __predict_true() if you expect the expression |
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295 * to evaluate to true, and __predict_false() if you expect the |
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296 * expression to evaluate to false. |
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297 * |
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298 * A few notes about usage: |
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299 * |
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300 * * Generally, __predict_false() error condition checks (unless |
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301 * you have some _strong_ reason to do otherwise, in which case |
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302 * document it), and/or __predict_true() `no-error' condition |
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303 * checks, assuming you want to optimize for the no-error case. |
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304 * |
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305 * * Other than that, if you don't know the likelihood of a test |
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306 * succeeding from empirical or other `hard' evidence, don't |
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307 * make predictions. |
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308 * |
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309 * * These are meant to be used in places that are run `a lot'. |
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310 * It is wasteful to make predictions in code that is run |
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311 * seldomly (e.g. at subsystem initialization time) as the |
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312 * basic block reordering that this affects can often generate |
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313 * larger code. |
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314 */ |
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315 #if __GNUC_PREREQ__(2, 96) |
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316 #define __predict_true(exp) __builtin_expect((exp), 1) |
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317 #define __predict_false(exp) __builtin_expect((exp), 0) |
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318 #else |
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319 #define __predict_true(exp) (exp) |
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320 #define __predict_false(exp) (exp) |
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321 #endif |
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322 |
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323 /* |
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324 * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h> |
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325 * require it. |
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326 */ |
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327 |
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328 #if !defined(__cplusplus) || defined(__SYMBIAN32__) |
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329 #define __offsetof(type, field) ((size_t)(&((type *)0)->field)) |
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330 #else |
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331 #define __offsetof(type, field) \ |
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332 (__offsetof__ (reinterpret_cast <size_t> \ |
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333 (&reinterpret_cast <const volatile char &> \ |
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334 (static_cast<type *> (0)->field)))) |
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335 #endif |
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336 #define __rangeof(type, start, end) \ |
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337 (__offsetof(type, end) - __offsetof(type, start)) |
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338 |
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339 /* |
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340 * Compiler-dependent macros to declare that functions take printf-like |
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341 * or scanf-like arguments. They are null except for versions of gcc |
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342 * that are known to support the features properly (old versions of gcc-2 |
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343 * didn't permit keeping the keywords out of the application namespace). |
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344 */ |
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345 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) |
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346 #define __printflike(fmtarg, firstvararg) |
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347 #define __scanflike(fmtarg, firstvararg) |
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348 #else |
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349 #define __printflike(fmtarg, firstvararg) \ |
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350 __attribute__((__format__ (__printf__, fmtarg, firstvararg))) |
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351 #define __scanflike(fmtarg, firstvararg) \ |
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352 __attribute__((__format__ (__scanf__, fmtarg, firstvararg))) |
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353 #endif |
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354 |
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355 /* Compiler-dependent macros that rely on FreeBSD-specific extensions. */ |
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356 #if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER) |
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357 #define __printf0like(fmtarg, firstvararg) \ |
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358 __attribute__((__format__ (__printf0__, fmtarg, firstvararg))) |
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359 #else |
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360 #define __printf0like(fmtarg, firstvararg) |
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361 #endif |
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362 |
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363 #if defined(__GNUC__) || defined(__INTEL_COMPILER) |
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364 #ifndef __INTEL_COMPILER |
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365 #define __strong_reference(sym,aliassym) \ |
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366 extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym))); |
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367 #endif |
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368 #ifdef __STDC__ |
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369 #define __weak_reference(sym,alias) \ |
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370 __asm__(".weak " #alias); \ |
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371 __asm__(".equ " #alias ", " #sym) |
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372 #define __warn_references(sym,msg) \ |
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373 __asm__(".section .gnu.warning." #sym); \ |
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374 __asm__(".asciz \"" msg "\""); \ |
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375 __asm__(".previous") |
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376 #else |
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377 #define __weak_reference(sym,alias) \ |
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378 __asm__(".weak alias"); \ |
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379 __asm__(".equ alias, sym") |
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380 #define __warn_references(sym,msg) \ |
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381 __asm__(".section .gnu.warning.sym"); \ |
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382 __asm__(".asciz \"msg\""); \ |
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383 __asm__(".previous") |
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384 #endif /* __STDC__ */ |
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385 #endif /* __GNUC__ || __INTEL_COMPILER */ |
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386 |
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387 #if defined(__GNUC__) || defined(__INTEL_COMPILER) |
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388 #define __IDSTRING(name,string) __asm__(".ident\t\"" string "\"") |
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389 #else |
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390 /* |
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391 * The following definition might not work well if used in header files, |
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392 * but it should be better than nothing. If you want a "do nothing" |
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393 * version, then it should generate some harmless declaration, such as: |
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394 * #define __IDSTRING(name,string) struct __hack |
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395 */ |
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396 #define __IDSTRING(name,string) static const char name[] __unused = string |
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397 #endif |
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398 |
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399 /* |
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400 * Embed the rcs id of a source file in the resulting library. Note that in |
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401 * more recent ELF binutils, we use .ident allowing the ID to be stripped. |
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402 * Usage: |
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403 * __FBSDID("$FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $"); |
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404 */ |
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405 #ifndef __FBSDID |
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406 #if !defined(lint) && !defined(STRIP_FBSDID) |
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407 #define __FBSDID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s) |
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408 #else |
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409 #define __FBSDID(s) struct __hack |
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410 #endif |
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411 #endif |
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412 |
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413 #ifndef __RCSID |
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414 #ifndef NO__RCSID |
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415 #define __RCSID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s) |
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416 #else |
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417 #define __RCSID(s) struct __hack |
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418 #endif |
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419 #endif |
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420 |
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421 #ifndef __RCSID_SOURCE |
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422 #ifndef NO__RCSID_SOURCE |
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423 #define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s) |
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424 #else |
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425 #define __RCSID_SOURCE(s) struct __hack |
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426 #endif |
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427 #endif |
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428 |
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429 #ifndef __SCCSID |
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430 #ifndef NO__SCCSID |
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431 #define __SCCSID(s) __IDSTRING(__CONCAT(__sccsid_,__LINE__),s) |
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432 #else |
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433 #define __SCCSID(s) struct __hack |
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434 #endif |
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435 #endif |
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436 |
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437 #ifndef __COPYRIGHT |
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438 #ifndef NO__COPYRIGHT |
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439 #define __COPYRIGHT(s) __IDSTRING(__CONCAT(__copyright_,__LINE__),s) |
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440 #else |
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441 #define __COPYRIGHT(s) struct __hack |
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442 #endif |
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443 #endif |
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444 |
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445 #ifndef __DECONST |
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446 #define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) |
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447 #endif |
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448 |
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449 #ifndef __DEVOLATILE |
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450 #define __DEVOLATILE(type, var) ((type)(uintptr_t)(volatile void *)(var)) |
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451 #endif |
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452 |
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453 #ifndef __DEQUALIFY |
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454 #define __DEQUALIFY(type, var) ((type)(uintptr_t)(const volatile void *)(var)) |
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455 #endif |
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456 |
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457 /*- |
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458 * The following definitions are an extension of the behavior originally |
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459 * implemented in <sys/_posix.h>, but with a different level of granularity. |
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460 * POSIX.1 requires that the macros we test be defined before any standard |
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461 * header file is included. |
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462 * |
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463 * Here's a quick run-down of the versions: |
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464 * defined(_POSIX_SOURCE) 1003.1-1988 |
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465 * _POSIX_C_SOURCE == 1 1003.1-1990 |
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466 * _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option |
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467 * _POSIX_C_SOURCE == 199309 1003.1b-1993 |
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468 * _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995, |
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469 * and the omnibus ISO/IEC 9945-1: 1996 |
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470 * _POSIX_C_SOURCE == 200112 1003.1-2001 |
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471 * |
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472 * In addition, the X/Open Portability Guide, which is now the Single UNIX |
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473 * Specification, defines a feature-test macro which indicates the version of |
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474 * that specification, and which subsumes _POSIX_C_SOURCE. |
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475 * |
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476 * Our macros begin with two underscores to avoid namespace screwage. |
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477 */ |
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478 |
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479 /* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */ |
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480 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1 |
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481 #undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */ |
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482 #define _POSIX_C_SOURCE 199009 |
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483 #endif |
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484 |
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485 /* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */ |
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486 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2 |
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487 #undef _POSIX_C_SOURCE |
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488 #define _POSIX_C_SOURCE 199209 |
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489 #endif |
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490 |
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491 /* Deal with various X/Open Portability Guides and Single UNIX Spec. */ |
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492 #ifdef _XOPEN_SOURCE |
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493 #if _XOPEN_SOURCE - 0 >= 600 |
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494 #define __XSI_VISIBLE 600 |
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495 #undef _POSIX_C_SOURCE |
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496 #define _POSIX_C_SOURCE 200112 |
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497 #elif _XOPEN_SOURCE - 0 >= 500 |
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498 #define __XSI_VISIBLE 500 |
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499 #undef _POSIX_C_SOURCE |
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500 #define _POSIX_C_SOURCE 199506 |
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501 #endif |
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502 #endif |
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503 |
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504 /* |
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505 * Deal with all versions of POSIX. The ordering relative to the tests above is |
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506 * important. |
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507 */ |
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508 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) |
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509 #define _POSIX_C_SOURCE 198808 |
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510 #endif |
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511 #ifdef _POSIX_C_SOURCE |
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512 #if _POSIX_C_SOURCE >= 200112 |
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513 #ifdef __SYMBIAN32__ |
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514 #define __XSI_VISIBLE 600 |
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515 #define __BSD_VISIBLE 1 |
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516 #endif //__SYMBIAN32__ |
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517 #define __POSIX_VISIBLE 200112 |
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518 #define __ISO_C_VISIBLE 1999 |
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519 #elif _POSIX_C_SOURCE >= 199506 |
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520 #define __POSIX_VISIBLE 199506 |
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521 #define __ISO_C_VISIBLE 1990 |
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522 #elif _POSIX_C_SOURCE >= 199309 |
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523 #define __POSIX_VISIBLE 199309 |
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524 #define __ISO_C_VISIBLE 1990 |
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525 #elif _POSIX_C_SOURCE >= 199209 |
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526 #define __POSIX_VISIBLE 199209 |
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527 #define __ISO_C_VISIBLE 1990 |
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528 #elif _POSIX_C_SOURCE >= 199009 |
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529 #define __POSIX_VISIBLE 199009 |
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530 #define __ISO_C_VISIBLE 1990 |
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531 #else |
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532 #define __POSIX_VISIBLE 198808 |
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533 #define __ISO_C_VISIBLE 0 |
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534 #endif /* _POSIX_C_SOURCE */ |
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535 #else |
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536 /*- |
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537 * Deal with _ANSI_SOURCE: |
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538 * If it is defined, and no other compilation environment is explicitly |
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539 * requested, then define our internal feature-test macros to zero. This |
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540 * makes no difference to the preprocessor (undefined symbols in preprocessing |
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541 * expressions are defined to have value zero), but makes it more convenient for |
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542 * a test program to print out the values. |
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543 * |
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544 * If a program mistakenly defines _ANSI_SOURCE and some other macro such as |
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545 * _POSIX_C_SOURCE, we will assume that it wants the broader compilation |
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546 * environment (and in fact we will never get here). |
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547 */ |
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548 #if defined(_ANSI_SOURCE) /* Hide almost everything. */ |
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549 #define __POSIX_VISIBLE 0 |
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550 #define __XSI_VISIBLE 0 |
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551 #define __BSD_VISIBLE 0 |
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552 #define __ISO_C_VISIBLE 1990 |
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553 #elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */ |
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554 #define __POSIX_VISIBLE 0 |
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555 #define __XSI_VISIBLE 0 |
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556 #define __BSD_VISIBLE 0 |
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557 #define __ISO_C_VISIBLE 1999 |
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558 #else /* Default environment: show everything. */ |
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559 #define __POSIX_VISIBLE 200112 |
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560 #define __XSI_VISIBLE 600 |
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561 #define __BSD_VISIBLE 1 |
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562 #define __ISO_C_VISIBLE 1999 |
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563 #endif |
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564 #endif |
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565 |
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566 #endif /* !_SYS_CDEFS_H_ */ |