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annotate packages/isoinfra/current/include/stdlib.h @ 161:ac086aa3217e

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Merge from eCos master repository on 2001-06-08-21:11:51-BST
author jlarmour
date Sun, 10 Jun 2001 19:35:23 +0000
parents 6ed91473a1cd
children cd45958b28ff
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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 //####COPYRIGHTBEGIN####
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11 //
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12 // -------------------------------------------
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13 // The contents of this file are subject to the Red Hat eCos Public License
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14 // Version 1.1 (the "License"); you may not use this file except in
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15 // compliance with the License. You may obtain a copy of the License at
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16 // http://www.redhat.com/
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17 //
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18 // Software distributed under the License is distributed on an "AS IS"
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19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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20 // License for the specific language governing rights and limitations under
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21 // the License.
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22 //
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23 // The Original Code is eCos - Embedded Configurable Operating System,
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24 // released September 30, 1998.
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25 //
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26 // The Initial Developer of the Original Code is Red Hat.
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27 // Portions created by Red Hat are
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28 // Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.
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29 // All Rights Reserved.
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30 // -------------------------------------------
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31 //
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32 //####COPYRIGHTEND####
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33 //========================================================================
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34 //#####DESCRIPTIONBEGIN####
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35 //
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36 // Author(s): jlarmour
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37 // Contributors:
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38 // Date: 2000-04-14
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39 // Purpose: This file provides the stdlib functions required by
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40 // ISO C and POSIX 1003.1.
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41 // Description: The real contents of this file get set from the
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42 // configuration (set by the implementation)
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43 // Usage: #include <stdlib.h>
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44 //
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45 //####DESCRIPTIONEND####
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46 //
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47 //======================================================================
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48 */
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49
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50 /* CONFIGURATION */
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51
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52 #include <pkgconf/isoinfra.h> /* Configuration header */
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53
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54 /* INCLUDES */
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55
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56 /* This is the "standard" way to get NULL, wchar_t and size_t from stddef.h,
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57 * which is the canonical location of the definitions.
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58 */
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59 #define __need_NULL
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60 #define __need_size_t
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61 #define __need_wchar_t
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62 #include <stddef.h>
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63
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64 /*==========================================================================*/
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65
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66 #if CYGINT_ISO_STDLIB_STRCONV
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67 # ifdef CYGBLD_ISO_STDLIB_STRCONV_HEADER
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68 # include CYGBLD_ISO_STDLIB_STRCONV_HEADER
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69 # else
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70
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71 /* ISO C 7.10.1 - String conversion functions */
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72
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73 #ifdef __cplusplus
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74 extern "C" {
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75 #endif
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76
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77 extern int
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78 atoi( const char * /* int_str */ );
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79
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80 extern long
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81 atol( const char * /* long_str */ );
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82
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83 extern long
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84 strtol( const char * /* long_str */, char ** /* endptr */,
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85 int /* base */ );
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86
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87 extern unsigned long
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88 strtoul( const char * /* ulong_str */, char ** /* endptr */,
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89 int /* base */ );
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90
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91 #ifdef __cplusplus
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92 } /* extern "C" */
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93 #endif
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95
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96 # endif
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97 #endif
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98
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99 /*==========================================================================*/
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100
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101 #if CYGINT_ISO_STDLIB_STRCONV_FLOAT
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102 # ifdef CYGBLD_ISO_STDLIB_STRCONV_FLOAT_HEADER
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103 # include CYGBLD_ISO_STDLIB_STRCONV_FLOAT_HEADER
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104 # else
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105
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106 /* ISO C 7.10.1 - String conversion functions */
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107
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108 #ifdef __cplusplus
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109 extern "C" {
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110 #endif
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111
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112 extern double
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113 atof( const char * /* double_str */ );
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114
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115 extern double
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116 strtod( const char * /* double_str */, char ** /* endptr */ );
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117
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118 #ifdef __cplusplus
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119 } /* extern "C" */
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120 #endif
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121
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122
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123 # endif
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124 #endif
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125
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126 /*==========================================================================*/
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127
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128 #if CYGINT_ISO_RAND
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129 # ifdef CYGBLD_ISO_RAND_HEADER
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130 # include CYGBLD_ISO_RAND_HEADER
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131 # else
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132
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133 /* ISO C 7.10.2 - Pseudo-random sequence generation functions */
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134
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135 /* Maximum value returned by rand(). */
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136 #define RAND_MAX 2147483647
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137
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138 #ifdef __cplusplus
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139 extern "C" {
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140 #endif
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141
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142 extern int
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143 rand( void );
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144
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145 extern void
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146 srand( unsigned int /* seed */ );
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147
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148 /* POSIX 1003.1 section 8.3.8 rand_r() */
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149 extern int
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150 rand_r( unsigned int * /* seed */ );
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151
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152 #ifdef __cplusplus
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153 } /* extern "C" */
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154 #endif
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155
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156 # endif
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157 #endif
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158
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159 /*==========================================================================*/
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160
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161 #if CYGINT_ISO_MALLOC
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162 # ifdef CYGBLD_ISO_MALLOC_HEADER
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163 # include CYGBLD_ISO_MALLOC_HEADER
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164 # else
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165
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166 /* ISO C 7.10.3 - Memory management functions */
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167
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168 #ifdef __cplusplus
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169 extern "C" {
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170 #endif
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171
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172 extern void *
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173 calloc( size_t /* num_objects */, size_t /* object_size */ );
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174
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175 extern void
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176 free( void * /* ptr */ );
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177
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178 extern void *
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179 malloc( size_t /* size */ );
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180
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181 extern void *
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182 realloc( void * /* ptr */, size_t /* size */ );
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183
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184 #ifdef __cplusplus
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185 } /* extern "C" */
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186 #endif
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187
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188 # endif
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189 #endif
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190
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191 /*==========================================================================*/
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192
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193 #if CYGINT_ISO_MALLINFO
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194 # ifdef CYGBLD_ISO_MALLINFO_HEADER
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195 # include CYGBLD_ISO_MALLINFO_HEADER
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196 # else
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197
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198 #ifdef __cplusplus
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199 extern "C" {
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200 #endif
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201
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202 /* SVID2/XPG mallinfo structure */
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203
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204 struct mallinfo {
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205 int arena; /* total size of memory arena */
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206 int ordblks; /* number of ordinary memory blocks */
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207 int smblks; /* number of small memory blocks */
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208 int hblks; /* number of mmapped regions */
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209 int hblkhd; /* total space in mmapped regions */
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210 int usmblks; /* space used by small memory blocks */
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211 int fsmblks; /* space available for small memory blocks */
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212 int uordblks; /* space used by ordinary memory blocks */
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213 int fordblks; /* space free for ordinary blocks */
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214 int keepcost; /* top-most, releasable (via malloc_trim) space */
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215 int maxfree; /* (NON-STANDARD EXTENSION) size of largest free block */
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216 };
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217
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218 extern struct mallinfo
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219 mallinfo( void );
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220
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221 #ifdef __cplusplus
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222 } /* extern "C" */
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223 #endif
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224
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225 # endif
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226 #endif
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227
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228 /*==========================================================================*/
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229
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230 #if CYGINT_ISO_EXIT
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231 # ifdef CYGBLD_ISO_EXIT_HEADER
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232 # include CYGBLD_ISO_EXIT_HEADER
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233 # else
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234
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235 /* ISO C 7.10.4 - Communication with the environment */
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236
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237 /* codes to pass to exit() */
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238
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239 /* Successful exit status - must be zero (POSIX 1003.1 8.1) */
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240 #define EXIT_SUCCESS 0
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241 /* Failing exit status - must be non-zero (POSIX 1003.1 8.1) */
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242 #define EXIT_FAILURE 1
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243
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244 #ifdef __cplusplus
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245 extern "C" {
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246 #endif
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247
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248 /* Type of function used by atexit() */
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249 typedef void (*__atexit_fn_t)( void );
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250
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251 extern void
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252 abort( void ) __attribute__((__noreturn__));
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253
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254 extern int
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255 atexit( __atexit_fn_t /* func_to_register */ );
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256
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257 extern void
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258 exit( int /* status */ ) __attribute__((__noreturn__));
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259
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260 /* POSIX 1003.1 section 3.2.2 "Terminate a process" */
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261
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262 //@@@ FIXME unistd.h
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263 extern void
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264 _exit( int /* status */ ) __attribute__((__noreturn__));
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265
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266 #ifdef __cplusplus
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267 } /* extern "C" */
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268 #endif
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269
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270 # endif
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271 #endif
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272
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273 /*==========================================================================*/
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274
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275 #if CYGINT_ISO_STDLIB_ENVIRON
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276 # ifdef CYGBLD_ISO_STDLIB_ENVIRON_HEADER
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277 # include CYGBLD_ISO_STDLIB_ENVIRON_HEADER
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278 # else
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279
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280 /* ISO C 7.10.4 - Communication with the environment */
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281
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282 #ifdef __cplusplus
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283 extern "C" {
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284 #endif
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285
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286 #ifndef _POSIX_SOURCE
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287
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288 extern char **environ; /* standard definition of environ */
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289
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290 #endif
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291
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292 extern char *
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293 getenv( const char * /* name */ );
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294
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295 #ifdef __cplusplus
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296 } /* extern "C" */
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297 #endif
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298
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299 # endif
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300 #endif
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301
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302 /*==========================================================================*/
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303
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304 #if CYGINT_ISO_STDLIB_SYSTEM
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305 # ifdef CYGBLD_ISO_STDLIB_SYSTEM_HEADER
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306 # include CYGBLD_ISO_STDLIB_SYSTEM_HEADER
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307 # else
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308
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309 /* ISO C 7.10.4 - Communication with the environment */
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310
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311 #ifdef __cplusplus
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312 extern "C" {
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313 #endif
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314
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315 extern int
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316 system( const char * /* command */ );
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317
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318 #ifdef __cplusplus
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319 } /* extern "C" */
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320 #endif
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321
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322 # endif
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323 #endif
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324
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325 /*==========================================================================*/
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326
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327 #if CYGINT_ISO_BSEARCH
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328 # ifdef CYGBLD_ISO_BSEARCH_HEADER
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329 # include CYGBLD_ISO_BSEARCH_HEADER
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330 # else
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331
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332 /* ISO C 7.10.5 - Searching and sorting utilities */
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333
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334 #ifdef __cplusplus
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335 extern "C" {
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336 #endif
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337
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338 typedef int (*__bsearch_comparison_fn_t)(const void * /* object1 */,
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339 const void * /* object2 */);
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340
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341 extern void *
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342 bsearch( const void * /* search_key */, const void * /* first_object */,
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343 size_t /* num_objects */, size_t /* object_size */,
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344 __bsearch_comparison_fn_t /* comparison_fn */ );
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345
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346 #ifdef __cplusplus
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347 } /* extern "C" */
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348 #endif
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349
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350 # endif
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351 #endif
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352
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353 /*==========================================================================*/
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354
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355 #if CYGINT_ISO_QSORT
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356 # ifdef CYGBLD_ISO_QSORT_HEADER
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357 # include CYGBLD_ISO_QSORT_HEADER
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358 # else
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359
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360 /* ISO C 7.10.5 - Searching and sorting utilities */
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361
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362 #ifdef __cplusplus
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363 extern "C" {
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364 #endif
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365
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366 typedef int (*__qsort_comparison_fn_t)(const void * /* object1 */,
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367 const void * /* object2 */);
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368
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369 extern void
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370 qsort( void * /* first_object */, size_t /* num_objects */,
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371 size_t /* object_size */, __qsort_comparison_fn_t /* comparison_fn */ );
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372
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373 #ifdef __cplusplus
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374 } /* extern "C" */
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375 #endif
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376
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377 # endif
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378 #endif
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379
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380 /*======================================================================*/
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381
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382 #if CYGINT_ISO_ABS
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383 # ifdef CYGBLD_ISO_ABS_HEADER
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384 # include CYGBLD_ISO_ABS_HEADER
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385 # else
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386
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387 /* TYPE DEFINITIONS */
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388
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389 /* ISO C 7.10 and 7.10.6 - Integer Arithmetic Functions */
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390
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391 #ifdef __cplusplus
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392 extern "C" {
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393 #endif
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394
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395 extern int
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396 abs( int /* val */ ) __attribute__((__const__));
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397
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398 extern long
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399 labs( long /* val */ ) __attribute__((__const__));
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400
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401 #ifdef __cplusplus
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402 } /* extern "C" */
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403 #endif
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404
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405 # endif
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406 #endif
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407
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408 /*======================================================================*/
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409
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410 #if CYGINT_ISO_DIV
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411 # ifdef CYGBLD_ISO_DIV_HEADER
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412 # include CYGBLD_ISO_DIV_HEADER
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413 # else
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414
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415 /* ISO C 7.10 and 7.10.6 - Integer Arithmetic Functions */
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416
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417 /* return type of the div() function */
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418
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419 typedef struct {
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420 int quot; /* quotient */
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421 int rem; /* remainder */
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422 } div_t;
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423
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424
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425 /* return type of the ldiv() function */
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426
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427 typedef struct {
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428 long quot; /* quotient */
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429 long rem; /* remainder */
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430 } ldiv_t;
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431
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432 #ifdef __cplusplus
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433 extern "C" {
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434 #endif
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435
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436 extern div_t
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437 div( int /* numerator */, int /* denominator */ ) __attribute__((__const__));
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438
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439 extern ldiv_t
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440 ldiv( long /* numerator */, long /* denominator */ ) __attribute__((__const__));
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441
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442 #ifdef __cplusplus
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443 } /* extern "C" */
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444 #endif
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445
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446 # endif
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447 #endif
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448
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449 /*==========================================================================*/
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450
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451 /* Maximum number of bytes in a multibyte character for the current locale */
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452
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453 #ifdef CYGBLD_ISO_STDLIB_MB_CUR_MAX_HEADER
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454 # include CYGBLD_ISO_STDLIB_MB_CUR_MAX_HEADER
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455 #else
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456 # define MB_CUR_MAX 1
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457 #endif
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458
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459 #if CYGINT_ISO_STDLIB_MULTIBYTE
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460 # ifdef CYGBLD_ISO_STDLIB_MULTIBYTE_HEADER
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461 # include CYGBLD_ISO_STDLIB_MULTIBYTE_HEADER
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462 # else
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463
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464 /* ISO C 7.10.7 - Multibyte character functions */
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465
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466
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467 #ifdef __cplusplus
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468 extern "C" {
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469 #endif
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470
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471 extern int
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472 mblen( const char * /* s */, size_t /* n */ );
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473
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474 extern int
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475 mbtowc( wchar_t * /* pwc */, const char * /* s */, size_t /* n */ );
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476
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477 extern int
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478 wctomb( char * /* s */, wchar_t /* wchar */ );
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479
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480 extern size_t
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481 mbstowcs( wchar_t * /* pwcs */, const char * /* s */, size_t /* n */ );
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482
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483 extern size_t
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484 wcstombs( char * /* s */, const wchar_t * /* pwcs */, size_t /* n */ );
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485
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486 #ifdef __cplusplus
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487 } /* extern "C" */
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488 #endif
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489
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490 # endif
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491 #endif
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492
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493 /*==========================================================================*/
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494
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495 #endif /* CYGONCE_ISO_STDLIB_H multiple inclusion protection */
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496
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497 /* EOF stdlib.h */