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272
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1 /* A GNU-like <stdlib.h>.
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2
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3 Copyright (C) 1995, 2001-2004, 2006-2008 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #if __GNUC__ >= 3
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19 @PRAGMA_SYSTEM_HEADER@
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20 #endif
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21
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22 #if defined __need_malloc_and_calloc
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23 /* Special invocation convention inside glibc header files. */
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24
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25 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
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26
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27 #else
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28 /* Normal invocation convention. */
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29
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30 #ifndef _GL_STDLIB_H
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31
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32 /* The include_next requires a split double-inclusion guard. */
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33 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
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34
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35 #ifndef _GL_STDLIB_H
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36 #define _GL_STDLIB_H
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37
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38
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39 /* Solaris declares getloadavg() in <sys/loadavg.h>. */
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40 #if @GNULIB_GETLOADAVG@ && @HAVE_SYS_LOADAVG_H@
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41 # include <sys/loadavg.h>
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42 #endif
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43
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44 #if @GNULIB_RANDOM_R@ || !@HAVE_STRUCT_RANDOM_DATA@
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45 # include <stdint.h>
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46 #endif
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47
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48 #if !@HAVE_STRUCT_RANDOM_DATA@
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49 struct random_data
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50 {
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51 int32_t *fptr; /* Front pointer. */
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52 int32_t *rptr; /* Rear pointer. */
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53 int32_t *state; /* Array of state values. */
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54 int rand_type; /* Type of random number generator. */
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55 int rand_deg; /* Degree of random number generator. */
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56 int rand_sep; /* Distance between front and rear. */
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57 int32_t *end_ptr; /* Pointer behind state table. */
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58 };
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59 #endif
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60
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61 /* The definition of GL_LINK_WARNING is copied here. */
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62
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63
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64 /* Some systems do not define EXIT_*, despite otherwise supporting C89. */
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65 #ifndef EXIT_SUCCESS
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66 # define EXIT_SUCCESS 0
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67 #endif
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68 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
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69 with proper operation of xargs. */
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70 #ifndef EXIT_FAILURE
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71 # define EXIT_FAILURE 1
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72 #elif EXIT_FAILURE != 1
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73 # undef EXIT_FAILURE
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74 # define EXIT_FAILURE 1
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75 #endif
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76
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77
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78 #ifdef __cplusplus
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79 extern "C" {
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80 #endif
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81
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82
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83 #if @GNULIB_MALLOC_POSIX@
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84 # if !@HAVE_MALLOC_POSIX@
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85 # undef malloc
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86 # define malloc rpl_malloc
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87 extern void * malloc (size_t size);
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88 # endif
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89 #elif defined GNULIB_POSIXCHECK
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90 # undef malloc
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91 # define malloc(s) \
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92 (GL_LINK_WARNING ("malloc is not POSIX compliant everywhere - " \
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93 "use gnulib module malloc-posix for portability"), \
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94 malloc (s))
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95 #endif
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96
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97
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98 #if @GNULIB_REALLOC_POSIX@
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99 # if !@HAVE_REALLOC_POSIX@
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100 # undef realloc
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101 # define realloc rpl_realloc
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102 extern void * realloc (void *ptr, size_t size);
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103 # endif
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104 #elif defined GNULIB_POSIXCHECK
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105 # undef realloc
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106 # define realloc(p,s) \
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107 (GL_LINK_WARNING ("realloc is not POSIX compliant everywhere - " \
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108 "use gnulib module realloc-posix for portability"), \
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109 realloc (p, s))
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110 #endif
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111
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112
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113 #if @GNULIB_CALLOC_POSIX@
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114 # if !@HAVE_CALLOC_POSIX@
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115 # undef calloc
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116 # define calloc rpl_calloc
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117 extern void * calloc (size_t nmemb, size_t size);
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118 # endif
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119 #elif defined GNULIB_POSIXCHECK
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120 # undef calloc
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121 # define calloc(n,s) \
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122 (GL_LINK_WARNING ("calloc is not POSIX compliant everywhere - " \
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123 "use gnulib module calloc-posix for portability"), \
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124 calloc (n, s))
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125 #endif
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126
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127
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128 #if @GNULIB_ATOLL@
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129 # if !@HAVE_ATOLL@
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130 /* Parse a signed decimal integer.
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131 Returns the value of the integer. Errors are not detected. */
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132 extern long long atoll (const char *string);
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133 # endif
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134 #elif defined GNULIB_POSIXCHECK
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135 # undef atoll
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136 # define atoll(s) \
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137 (GL_LINK_WARNING ("atoll is unportable - " \
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138 "use gnulib module atoll for portability"), \
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139 atoll (s))
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140 #endif
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141
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142
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143 #if @GNULIB_GETLOADAVG@
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144 # if !@HAVE_DECL_GETLOADAVG@
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145 /* Store max(NELEM,3) load average numbers in LOADAVG[].
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146 The three numbers are the load average of the last 1 minute, the last 5
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147 minutes, and the last 15 minutes, respectively.
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148 LOADAVG is an array of NELEM numbers. */
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149 extern int getloadavg (double loadavg[], int nelem);
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150 # endif
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151 #elif defined GNULIB_POSIXCHECK
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152 # undef getloadavg
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153 # define getloadavg(l,n) \
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154 (GL_LINK_WARNING ("getloadavg is not portable - " \
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155 "use gnulib module getloadavg for portability"), \
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156 getloadavg (l, n))
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157 #endif
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158
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159
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160 #if @GNULIB_GETSUBOPT@
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161 /* Assuming *OPTIONP is a comma separated list of elements of the form
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162 "token" or "token=value", getsubopt parses the first of these elements.
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163 If the first element refers to a "token" that is member of the given
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164 NULL-terminated array of tokens:
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165 - It replaces the comma with a NUL byte, updates *OPTIONP to point past
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166 the first option and the comma, sets *VALUEP to the value of the
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167 element (or NULL if it doesn't contain an "=" sign),
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168 - It returns the index of the "token" in the given array of tokens.
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169 Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
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170 For more details see the POSIX:2001 specification.
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171 http://www.opengroup.org/susv3xsh/getsubopt.html */
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172 # if !@HAVE_GETSUBOPT@
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173 extern int getsubopt (char **optionp, char *const *tokens, char **valuep);
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174 # endif
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175 #elif defined GNULIB_POSIXCHECK
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176 # undef getsubopt
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177 # define getsubopt(o,t,v) \
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178 (GL_LINK_WARNING ("getsubopt is unportable - " \
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179 "use gnulib module getsubopt for portability"), \
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180 getsubopt (o, t, v))
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181 #endif
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182
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183
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184 #if @GNULIB_MKDTEMP@
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185 # if !@HAVE_MKDTEMP@
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186 /* Create a unique temporary directory from TEMPLATE.
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187 The last six characters of TEMPLATE must be "XXXXXX";
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188 they are replaced with a string that makes the directory name unique.
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189 Returns TEMPLATE, or a null pointer if it cannot get a unique name.
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190 The directory is created mode 700. */
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191 extern char * mkdtemp (char * /*template*/);
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192 # endif
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193 #elif defined GNULIB_POSIXCHECK
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194 # undef mkdtemp
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195 # define mkdtemp(t) \
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196 (GL_LINK_WARNING ("mkdtemp is unportable - " \
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197 "use gnulib module mkdtemp for portability"), \
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198 mkdtemp (t))
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199 #endif
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200
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201
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202 #if @GNULIB_MKSTEMP@
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203 # if @REPLACE_MKSTEMP@
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204 /* Create a unique temporary file from TEMPLATE.
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205 The last six characters of TEMPLATE must be "XXXXXX";
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206 they are replaced with a string that makes the file name unique.
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207 The file is then created, ensuring it didn't exist before.
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208 The file is created read-write (mask at least 0600 & ~umask), but it may be
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209 world-readable and world-writable (mask 0666 & ~umask), depending on the
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210 implementation.
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211 Returns the open file descriptor if successful, otherwise -1 and errno
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212 set. */
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213 # define mkstemp rpl_mkstemp
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214 extern int mkstemp (char * /*template*/);
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215 # else
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216 /* On MacOS X 10.3, only <unistd.h> declares mkstemp. */
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217 # include <unistd.h>
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218 # endif
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219 #elif defined GNULIB_POSIXCHECK
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220 # undef mkstemp
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221 # define mkstemp(t) \
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222 (GL_LINK_WARNING ("mkstemp is unportable - " \
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223 "use gnulib module mkstemp for portability"), \
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224 mkstemp (t))
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225 #endif
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226
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227
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228 #if @GNULIB_PUTENV@
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229 # if @REPLACE_PUTENV@
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230 # undef putenv
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231 # define putenv rpl_putenv
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232 extern int putenv (char *string);
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233 # endif
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234 #endif
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235
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236
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237 #if @GNULIB_RANDOM_R@
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238 # if !@HAVE_RANDOM_R@
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239
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240 # ifndef RAND_MAX
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241 # define RAND_MAX 2147483647
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242 # endif
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243
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244 int srandom_r (unsigned int seed, struct random_data *rand_state);
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245 int initstate_r (unsigned int seed, char *buf, size_t buf_size,
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246 struct random_data *rand_state);
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247 int setstate_r (char *arg_state, struct random_data *rand_state);
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248 int random_r (struct random_data *buf, int32_t *result);
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249 # endif
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250 #elif defined GNULIB_POSIXCHECK
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251 # undef random_r
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252 # define random_r(b,r) \
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253 (GL_LINK_WARNING ("random_r is unportable - " \
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254 "use gnulib module random_r for portability"), \
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255 random_r (b,r))
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256 # undef initstate_r
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257 # define initstate_r(s,b,sz,r) \
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258 (GL_LINK_WARNING ("initstate_r is unportable - " \
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259 "use gnulib module random_r for portability"), \
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260 initstate_r (s,b,sz,r))
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261 # undef srandom_r
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262 # define srandom_r(s,r) \
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263 (GL_LINK_WARNING ("srandom_r is unportable - " \
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264 "use gnulib module random_r for portability"), \
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265 srandom_r (s,r))
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266 # undef setstate_r
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267 # define setstate_r(a,r) \
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268 (GL_LINK_WARNING ("setstate_r is unportable - " \
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269 "use gnulib module random_r for portability"), \
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270 setstate_r (a,r))
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271 #endif
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272
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273
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274 #if @GNULIB_RPMATCH@
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275 # if !@HAVE_RPMATCH@
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276 /* Test a user response to a question.
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277 Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear. */
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278 extern int rpmatch (const char *response);
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279 # endif
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280 #elif defined GNULIB_POSIXCHECK
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281 # undef rpmatch
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282 # define rpmatch(r) \
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283 (GL_LINK_WARNING ("rpmatch is unportable - " \
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284 "use gnulib module rpmatch for portability"), \
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285 rpmatch (r))
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286 #endif
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287
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288
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289 #if @GNULIB_SETENV@
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290 # if !@HAVE_SETENV@
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291 /* Set NAME to VALUE in the environment.
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292 If REPLACE is nonzero, overwrite an existing value. */
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293 extern int setenv (const char *name, const char *value, int replace);
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294 # endif
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295 #endif
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296
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297
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298 #if @GNULIB_UNSETENV@
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299 # if @HAVE_UNSETENV@
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300 # if @VOID_UNSETENV@
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301 /* On some systems, unsetenv() returns void.
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302 This is the case for MacOS X 10.3, FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */
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303 # define unsetenv(name) ((unsetenv)(name), 0)
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304 # endif
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305 # else
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306 /* Remove the variable NAME from the environment. */
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307 extern int unsetenv (const char *name);
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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 #if @GNULIB_STRTOD@
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313 # if @REPLACE_STRTOD@
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314 # define strtod rpl_strtod
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315 # endif
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316 # if !@HAVE_STRTOD@ || @REPLACE_STRTOD@
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317 /* Parse a double from STRING, updating ENDP if appropriate. */
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318 extern double strtod (const char *str, char **endp);
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319 # endif
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320 #elif defined GNULIB_POSIXCHECK
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321 # undef strtod
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322 # define strtod(s, e) \
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323 (GL_LINK_WARNING ("strtod is unportable - " \
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324 "use gnulib module strtod for portability"), \
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325 strtod (s, e))
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326 #endif
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327
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328
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329 #if @GNULIB_STRTOLL@
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330 # if !@HAVE_STRTOLL@
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331 /* Parse a signed integer whose textual representation starts at STRING.
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332 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
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333 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
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334 "0x").
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335 If ENDPTR is not NULL, the address of the first byte after the integer is
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336 stored in *ENDPTR.
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337 Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
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338 to ERANGE. */
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339 extern long long strtoll (const char *string, char **endptr, int base);
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340 # endif
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341 #elif defined GNULIB_POSIXCHECK
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342 # undef strtoll
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343 # define strtoll(s,e,b) \
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344 (GL_LINK_WARNING ("strtoll is unportable - " \
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345 "use gnulib module strtoll for portability"), \
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346 strtoll (s, e, b))
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347 #endif
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348
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349
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350 #if @GNULIB_STRTOULL@
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351 # if !@HAVE_STRTOULL@
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352 /* Parse an unsigned integer whose textual representation starts at STRING.
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353 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
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354 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
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355 "0x").
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356 If ENDPTR is not NULL, the address of the first byte after the integer is
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357 stored in *ENDPTR.
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358 Upon overflow, the return value is ULLONG_MAX, and errno is set to
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359 ERANGE. */
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360 extern unsigned long long strtoull (const char *string, char **endptr, int base);
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361 # endif
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362 #elif defined GNULIB_POSIXCHECK
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363 # undef strtoull
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364 # define strtoull(s,e,b) \
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365 (GL_LINK_WARNING ("strtoull is unportable - " \
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366 "use gnulib module strtoull for portability"), \
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367 strtoull (s, e, b))
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368 #endif
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369
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370
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371 #ifdef __cplusplus
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372 }
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373 #endif
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374
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375 #endif /* _GL_STDLIB_H */
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376 #endif /* _GL_STDLIB_H */
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377 #endif
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