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annotate packages/isoinfra/current/include/stdlib.h @ 210:d2c90368aeef

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Merge from eCos master repository on 2002-05-23-21:39:14-BST
author jlarmour
date Thu, 23 May 2002 22:59:51 +0000
parents e0c0827131d1
children 05075ca5a377
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1 #ifndef CYGONCE_ISO_STDLIB_H
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2 #define CYGONCE_ISO_STDLIB_H
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3 /*========================================================================
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4 //
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5 // stdlib.h
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6 //
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7 // ISO standard library functions
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8 //
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9 //========================================================================
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10 //####ECOSGPLCOPYRIGHTBEGIN####
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11 // -------------------------------------------
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12 // This file is part of eCos, the Embedded Configurable Operating System.
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13 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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14 //
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15 // eCos is free software; you can redistribute it and/or modify it under
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16 // the terms of the GNU General Public License as published by the Free
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17 // Software Foundation; either version 2 or (at your option) any later version.
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18 //
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19 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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20 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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21 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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22 // for more details.
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23 //
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24 // You should have received a copy of the GNU General Public License along
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25 // with eCos; if not, write to the Free Software Foundation, Inc.,
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26 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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27 //
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28 // As a special exception, if other files instantiate templates or use macros
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29 // or inline functions from this file, or you compile this file and link it
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30 // with other works to produce a work based on this file, this file does not
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31 // by itself cause the resulting work to be covered by the GNU General Public
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32 // License. However the source code for this file must still be made available
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33 // in accordance with section (3) of the GNU General Public License.
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34 //
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35 // This exception does not invalidate any other reasons why a work based on
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36 // this file might be covered by the GNU General Public License.
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37 //
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38 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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39 // at http://sources.redhat.com/ecos/ecos-license/
208
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40 // -------------------------------------------
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41 //####ECOSGPLCOPYRIGHTEND####
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42 //========================================================================
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43 //#####DESCRIPTIONBEGIN####
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44 //
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45 // Author(s): jlarmour
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46 // Contributors:
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47 // Date: 2000-04-14
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48 // Purpose: This file provides the stdlib functions required by
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49 // ISO C and POSIX 1003.1.
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50 // Description: The real contents of this file get set from the
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51 // configuration (set by the implementation)
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52 // Usage: #include <stdlib.h>
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53 //
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54 //####DESCRIPTIONEND####
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55 //
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56 //======================================================================
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57 */
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58
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59 /* CONFIGURATION */
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60
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61 #include <pkgconf/isoinfra.h> /* Configuration header */
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62
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63 /* INCLUDES */
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64
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65 /* This is the "standard" way to get NULL, wchar_t and size_t from stddef.h,
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66 * which is the canonical location of the definitions.
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67 */
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68 #define __need_NULL
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69 #define __need_size_t
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70 #define __need_wchar_t
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71 #include <stddef.h>
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72
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73 /*==========================================================================*/
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74
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75 #if CYGINT_ISO_STDLIB_STRCONV
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76 # ifdef CYGBLD_ISO_STDLIB_STRCONV_HEADER
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77 # include CYGBLD_ISO_STDLIB_STRCONV_HEADER
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78 # else
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79
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80 /* ISO C 7.10.1 - String conversion functions */
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81
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82 #ifdef __cplusplus
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83 extern "C" {
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84 #endif
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85
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86 extern int
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87 atoi( const char * /* int_str */ );
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88
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89 extern long
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90 atol( const char * /* long_str */ );
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91
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92 extern long
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93 strtol( const char * /* long_str */, char ** /* endptr */,
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94 int /* base */ );
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95
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96 extern unsigned long
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97 strtoul( const char * /* ulong_str */, char ** /* endptr */,
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98 int /* base */ );
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99
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100 #ifdef __cplusplus
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101 } /* extern "C" */
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102 #endif
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103
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104
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105 # endif
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106 #endif
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107
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108 /*==========================================================================*/
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109
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110 #if CYGINT_ISO_STDLIB_STRCONV_FLOAT
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111 # ifdef CYGBLD_ISO_STDLIB_STRCONV_FLOAT_HEADER
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112 # include CYGBLD_ISO_STDLIB_STRCONV_FLOAT_HEADER
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113 # else
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114
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115 /* ISO C 7.10.1 - String conversion functions */
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116
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117 #ifdef __cplusplus
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118 extern "C" {
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119 #endif
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120
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121 extern double
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122 atof( const char * /* double_str */ );
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123
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124 extern double
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125 strtod( const char * /* double_str */, char ** /* endptr */ );
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126
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127 #ifdef __cplusplus
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128 } /* extern "C" */
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129 #endif
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130
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131
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132 # endif
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133 #endif
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134
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135 /*==========================================================================*/
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136
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137 #if CYGINT_ISO_RAND
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138 # ifdef CYGBLD_ISO_RAND_HEADER
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139 # include CYGBLD_ISO_RAND_HEADER
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140 # else
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141
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142 /* ISO C 7.10.2 - Pseudo-random sequence generation functions */
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143
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144 /* Maximum value returned by rand(). */
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145 #define RAND_MAX 2147483647
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146
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147 #ifdef __cplusplus
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148 extern "C" {
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149 #endif
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150
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151 extern int
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152 rand( void );
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153
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154 extern void
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155 srand( unsigned int /* seed */ );
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156
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157 /* POSIX 1003.1 section 8.3.8 rand_r() */
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158 extern int
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159 rand_r( unsigned int * /* seed */ );
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160
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161 #ifdef __cplusplus
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162 } /* extern "C" */
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163 #endif
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164
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165 # endif
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166 #endif
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167
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168 /*==========================================================================*/
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169
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170 #if CYGINT_ISO_MALLOC
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171 # ifdef CYGBLD_ISO_MALLOC_HEADER
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172 # include CYGBLD_ISO_MALLOC_HEADER
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173 # else
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174
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175 /* ISO C 7.10.3 - Memory management functions */
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176
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177 #ifdef __cplusplus
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178 extern "C" {
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179 #endif
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180
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181 extern void *
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182 calloc( size_t /* num_objects */, size_t /* object_size */ );
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183
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184 extern void
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185 free( void * /* ptr */ );
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186
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187 extern void *
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188 malloc( size_t /* size */ );
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189
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190 extern void *
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191 realloc( void * /* ptr */, size_t /* size */ );
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192
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193 #ifdef __cplusplus
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194 } /* extern "C" */
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195 #endif
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196
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197 # endif
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198 #endif
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199
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200 /*==========================================================================*/
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201
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202 #if CYGINT_ISO_MALLINFO
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203 # ifdef CYGBLD_ISO_MALLINFO_HEADER
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204 # include CYGBLD_ISO_MALLINFO_HEADER
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205 # else
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206
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207 #ifdef __cplusplus
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208 extern "C" {
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209 #endif
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210
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211 /* SVID2/XPG mallinfo structure */
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212
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213 struct mallinfo {
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214 int arena; /* total size of memory arena */
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215 int ordblks; /* number of ordinary memory blocks */
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216 int smblks; /* number of small memory blocks */
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217 int hblks; /* number of mmapped regions */
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218 int hblkhd; /* total space in mmapped regions */
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219 int usmblks; /* space used by small memory blocks */
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220 int fsmblks; /* space available for small memory blocks */
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221 int uordblks; /* space used by ordinary memory blocks */
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222 int fordblks; /* space free for ordinary blocks */
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223 int keepcost; /* top-most, releasable (via malloc_trim) space */
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224 int maxfree; /* (NON-STANDARD EXTENSION) size of largest free block */
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225 };
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226
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227 extern struct mallinfo
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228 mallinfo( void );
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229
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230 #ifdef __cplusplus
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231 } /* extern "C" */
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232 #endif
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233
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234 # endif
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235 #endif
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236
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237 /*==========================================================================*/
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238
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239 #if CYGINT_ISO_EXIT
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240 # ifdef CYGBLD_ISO_EXIT_HEADER
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241 # include CYGBLD_ISO_EXIT_HEADER
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242 # else
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243
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244 /* ISO C 7.10.4 - Communication with the environment */
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245
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246 /* codes to pass to exit() */
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247
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248 /* Successful exit status - must be zero (POSIX 1003.1 8.1) */
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249 #define EXIT_SUCCESS 0
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250 /* Failing exit status - must be non-zero (POSIX 1003.1 8.1) */
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251 #define EXIT_FAILURE 1
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252
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253 #ifdef __cplusplus
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254 extern "C" {
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255 #endif
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256
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257 /* Type of function used by atexit() */
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258 typedef void (*__atexit_fn_t)( void );
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259
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260 extern void
208
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261 abort( void ) CYGBLD_ATTRIB_NORET;
115
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262
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263 extern int
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264 atexit( __atexit_fn_t /* func_to_register */ );
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265
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266 extern void
208
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267 exit( int /* status */ ) CYGBLD_ATTRIB_NORET;
115
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268
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269 /* POSIX 1003.1 section 3.2.2 "Terminate a process" */
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270
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271 //@@@ FIXME unistd.h
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272 extern void
208
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273 _exit( int /* status */ ) CYGBLD_ATTRIB_NORET;
115
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274
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275 #ifdef __cplusplus
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276 } /* extern "C" */
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277 #endif
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278
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279 # endif
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280 #endif
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281
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282 /*==========================================================================*/
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283
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284 #if CYGINT_ISO_STDLIB_ENVIRON
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285 # ifdef CYGBLD_ISO_STDLIB_ENVIRON_HEADER
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286 # include CYGBLD_ISO_STDLIB_ENVIRON_HEADER
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287 # else
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288
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289 /* ISO C 7.10.4 - Communication with the environment */
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290
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291 #ifdef __cplusplus
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292 extern "C" {
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293 #endif
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294
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295 #ifndef _POSIX_SOURCE
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296
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297 extern char **environ; /* standard definition of environ */
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298
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299 #endif
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300
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301 extern char *
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302 getenv( const char * /* name */ );
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303
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304 #ifdef __cplusplus
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305 } /* extern "C" */
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306 #endif
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307
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308 # endif
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309 #endif
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310
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311 /*==========================================================================*/
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312
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313 #if CYGINT_ISO_STDLIB_SYSTEM
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314 # ifdef CYGBLD_ISO_STDLIB_SYSTEM_HEADER
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315 # include CYGBLD_ISO_STDLIB_SYSTEM_HEADER
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316 # else
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317
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318 /* ISO C 7.10.4 - Communication with the environment */
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319
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320 #ifdef __cplusplus
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321 extern "C" {
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322 #endif
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323
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324 extern int
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325 system( const char * /* command */ );
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326
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327 #ifdef __cplusplus
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328 } /* extern "C" */
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329 #endif
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330
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331 # endif
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332 #endif
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333
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334 /*==========================================================================*/
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335
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336 #if CYGINT_ISO_BSEARCH
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337 # ifdef CYGBLD_ISO_BSEARCH_HEADER
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338 # include CYGBLD_ISO_BSEARCH_HEADER
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339 # else
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340
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341 /* ISO C 7.10.5 - Searching and sorting utilities */
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342
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343 #ifdef __cplusplus
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344 extern "C" {
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345 #endif
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346
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347 typedef int (*__bsearch_comparison_fn_t)(const void * /* object1 */,
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348 const void * /* object2 */);
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349
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350 extern void *
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351 bsearch( const void * /* search_key */, const void * /* first_object */,
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352 size_t /* num_objects */, size_t /* object_size */,
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353 __bsearch_comparison_fn_t /* comparison_fn */ );
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354
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355 #ifdef __cplusplus
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356 } /* extern "C" */
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357 #endif
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358
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359 # endif
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360 #endif
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361
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362 /*==========================================================================*/
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363
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364 #if CYGINT_ISO_QSORT
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365 # ifdef CYGBLD_ISO_QSORT_HEADER
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366 # include CYGBLD_ISO_QSORT_HEADER
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367 # else
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368
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369 /* ISO C 7.10.5 - Searching and sorting utilities */
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370
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371 #ifdef __cplusplus
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372 extern "C" {
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373 #endif
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374
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375 typedef int (*__qsort_comparison_fn_t)(const void * /* object1 */,
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376 const void * /* object2 */);
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377
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378 extern void
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379 qsort( void * /* first_object */, size_t /* num_objects */,
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380 size_t /* object_size */, __qsort_comparison_fn_t /* comparison_fn */ );
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381
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382 #ifdef __cplusplus
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383 } /* extern "C" */
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384 #endif
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385
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386 # endif
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387 #endif
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388
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389 /*======================================================================*/
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390
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391 #if CYGINT_ISO_ABS
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392 # ifdef CYGBLD_ISO_STDLIB_ABS_HEADER
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393 # include CYGBLD_ISO_STDLIB_ABS_HEADER
115
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394 # else
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395
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396 /* TYPE DEFINITIONS */
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397
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398 /* ISO C 7.10 and 7.10.6 - Integer Arithmetic Functions */
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399
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400 #ifdef __cplusplus
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401 extern "C" {
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402 #endif
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403
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404 extern int
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405 abs( int /* val */ ) __attribute__((__const__));
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406
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407 extern long
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408 labs( long /* val */ ) __attribute__((__const__));
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409
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410 #ifdef __cplusplus
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411 } /* extern "C" */
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412 #endif
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413
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414 # endif
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415 #endif
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416
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417 /*======================================================================*/
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418
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419 #if CYGINT_ISO_DIV
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420 # ifdef CYGBLD_ISO_STDLIB_DIV_HEADER
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421 # include CYGBLD_ISO_STDLIB_DIV_HEADER
115
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422 # else
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423
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424 /* ISO C 7.10 and 7.10.6 - Integer Arithmetic Functions */
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425
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426 /* return type of the div() function */
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427
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428 typedef struct {
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429 int quot; /* quotient */
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430 int rem; /* remainder */
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431 } div_t;
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432
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433
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434 /* return type of the ldiv() function */
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435
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436 typedef struct {
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437 long quot; /* quotient */
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438 long rem; /* remainder */
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439 } ldiv_t;
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440
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441 #ifdef __cplusplus
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442 extern "C" {
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443 #endif
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444
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445 extern div_t
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446 div( int /* numerator */, int /* denominator */ ) __attribute__((__const__));
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447
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448 extern ldiv_t
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449 ldiv( long /* numerator */, long /* denominator */ ) __attribute__((__const__));
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450
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451 #ifdef __cplusplus
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452 } /* extern "C" */
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453 #endif
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454
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455 # endif
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456 #endif
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457
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458 /*==========================================================================*/
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459
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460 /* Maximum number of bytes in a multibyte character for the current locale */
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461
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462 #ifdef CYGBLD_ISO_STDLIB_MB_CUR_MAX_HEADER
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463 # include CYGBLD_ISO_STDLIB_MB_CUR_MAX_HEADER
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464 #else
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465 # define MB_CUR_MAX 1
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466 #endif
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467
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468 #if CYGINT_ISO_STDLIB_MULTIBYTE
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469 # ifdef CYGBLD_ISO_STDLIB_MULTIBYTE_HEADER
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470 # include CYGBLD_ISO_STDLIB_MULTIBYTE_HEADER
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471 # else
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472
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473 /* ISO C 7.10.7 - Multibyte character functions */
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474
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475
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476 #ifdef __cplusplus
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477 extern "C" {
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478 #endif
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479
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480 extern int
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481 mblen( const char * /* s */, size_t /* n */ );
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482
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483 extern int
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484 mbtowc( wchar_t * /* pwc */, const char * /* s */, size_t /* n */ );
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485
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486 extern int
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487 wctomb( char * /* s */, wchar_t /* wchar */ );
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488
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489 extern size_t
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490 mbstowcs( wchar_t * /* pwcs */, const char * /* s */, size_t /* n */ );
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491
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492 extern size_t
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493 wcstombs( char * /* s */, const wchar_t * /* pwcs */, size_t /* n */ );
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494
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495 #ifdef __cplusplus
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496 } /* extern "C" */
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497 #endif
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498
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499 # endif
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500 #endif
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501
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502 /*==========================================================================*/
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503
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504 #endif /* CYGONCE_ISO_STDLIB_H multiple inclusion protection */
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505
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506 /* EOF stdlib.h */