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272
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1 /* A GNU-like <string.h>.
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2
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3 Copyright (C) 1995-1996, 2001-2008 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, or (at your option)
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8 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, write to the Free Software Foundation,
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17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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18
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19 #ifndef _GL_STRING_H
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20
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21 #if __GNUC__ >= 3
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22 @PRAGMA_SYSTEM_HEADER@
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23 #endif
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24
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25 /* The include_next requires a split double-inclusion guard. */
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26 #@INCLUDE_NEXT@ @NEXT_STRING_H@
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27
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28 #ifndef _GL_STRING_H
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29 #define _GL_STRING_H
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30
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31
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32 #ifndef __attribute__
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33 /* This feature is available in gcc versions 2.5 and later. */
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34 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
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35 # define __attribute__(Spec) /* empty */
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36 # endif
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37 /* The attribute __pure__ was added in gcc 2.96. */
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38 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
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39 # define __pure__ /* empty */
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40 # endif
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41 #endif
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42
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43
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44 /* The definition of GL_LINK_WARNING is copied here. */
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45
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46
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47 #ifdef __cplusplus
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48 extern "C" {
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49 #endif
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50
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51
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52 /* Return the first occurrence of NEEDLE in HAYSTACK. */
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53 #if @GNULIB_MEMMEM@
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54 # if @REPLACE_MEMMEM@
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55 # define memmem rpl_memmem
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56 # endif
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57 # if ! @HAVE_DECL_MEMMEM@ || @REPLACE_MEMMEM@
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58 extern void *memmem (void const *__haystack, size_t __haystack_len,
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59 void const *__needle, size_t __needle_len)
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60 __attribute__ ((__pure__));
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61 # endif
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62 #elif defined GNULIB_POSIXCHECK
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63 # undef memmem
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64 # define memmem(a,al,b,bl) \
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65 (GL_LINK_WARNING ("memmem is unportable and often quadratic - " \
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66 "use gnulib module memmem-simple for portability, " \
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67 "and module memmem for speed" ), \
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68 memmem (a, al, b, bl))
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69 #endif
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70
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71 /* Copy N bytes of SRC to DEST, return pointer to bytes after the
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72 last written byte. */
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73 #if @GNULIB_MEMPCPY@
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74 # if ! @HAVE_MEMPCPY@
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75 extern void *mempcpy (void *restrict __dest, void const *restrict __src,
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76 size_t __n);
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77 # endif
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78 #elif defined GNULIB_POSIXCHECK
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79 # undef mempcpy
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80 # define mempcpy(a,b,n) \
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81 (GL_LINK_WARNING ("mempcpy is unportable - " \
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82 "use gnulib module mempcpy for portability"), \
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83 mempcpy (a, b, n))
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84 #endif
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85
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86 /* Search backwards through a block for a byte (specified as an int). */
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87 #if @GNULIB_MEMRCHR@
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88 # if ! @HAVE_DECL_MEMRCHR@
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89 extern void *memrchr (void const *, int, size_t)
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90 __attribute__ ((__pure__));
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91 # endif
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92 #elif defined GNULIB_POSIXCHECK
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93 # undef memrchr
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94 # define memrchr(a,b,c) \
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95 (GL_LINK_WARNING ("memrchr is unportable - " \
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96 "use gnulib module memrchr for portability"), \
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97 memrchr (a, b, c))
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98 #endif
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99
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100 /* Find the first occurrence of C in S. More efficient than
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101 memchr(S,C,N), at the expense of undefined behavior if C does not
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102 occur within N bytes. */
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103 #if @GNULIB_RAWMEMCHR@
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104 # if ! @HAVE_RAWMEMCHR@
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105 extern void *rawmemchr (void const *__s, int __c_in)
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106 __attribute__ ((__pure__));
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107 # endif
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108 #elif defined GNULIB_POSIXCHECK
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109 # undef rawmemchr
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110 # define rawmemchr(a,b) \
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111 (GL_LINK_WARNING ("rawmemchr is unportable - " \
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112 "use gnulib module rawmemchr for portability"), \
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113 rawmemchr (a, b))
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114 #endif
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115
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116 /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
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117 #if @GNULIB_STPCPY@
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118 # if ! @HAVE_STPCPY@
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119 extern char *stpcpy (char *restrict __dst, char const *restrict __src);
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120 # endif
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121 #elif defined GNULIB_POSIXCHECK
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122 # undef stpcpy
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123 # define stpcpy(a,b) \
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124 (GL_LINK_WARNING ("stpcpy is unportable - " \
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125 "use gnulib module stpcpy for portability"), \
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126 stpcpy (a, b))
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127 #endif
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128
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129 /* Copy no more than N bytes of SRC to DST, returning a pointer past the
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130 last non-NUL byte written into DST. */
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131 #if @GNULIB_STPNCPY@
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132 # if ! @HAVE_STPNCPY@
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133 # define stpncpy gnu_stpncpy
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134 extern char *stpncpy (char *restrict __dst, char const *restrict __src,
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135 size_t __n);
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136 # endif
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137 #elif defined GNULIB_POSIXCHECK
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138 # undef stpncpy
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139 # define stpncpy(a,b,n) \
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140 (GL_LINK_WARNING ("stpncpy is unportable - " \
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141 "use gnulib module stpncpy for portability"), \
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142 stpncpy (a, b, n))
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143 #endif
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144
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145 #if defined GNULIB_POSIXCHECK
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146 /* strchr() does not work with multibyte strings if the locale encoding is
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147 GB18030 and the character to be searched is a digit. */
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148 # undef strchr
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149 # define strchr(s,c) \
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150 (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \
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151 "in some multibyte locales - " \
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152 "use mbschr if you care about internationalization"), \
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153 strchr (s, c))
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154 #endif
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155
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156 /* Find the first occurrence of C in S or the final NUL byte. */
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157 #if @GNULIB_STRCHRNUL@
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158 # if ! @HAVE_STRCHRNUL@
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159 extern char *strchrnul (char const *__s, int __c_in)
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160 __attribute__ ((__pure__));
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161 # endif
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162 #elif defined GNULIB_POSIXCHECK
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163 # undef strchrnul
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164 # define strchrnul(a,b) \
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165 (GL_LINK_WARNING ("strchrnul is unportable - " \
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166 "use gnulib module strchrnul for portability"), \
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167 strchrnul (a, b))
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168 #endif
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169
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170 /* Duplicate S, returning an identical malloc'd string. */
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171 #if @GNULIB_STRDUP@
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172 # if @REPLACE_STRDUP@
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173 # undef strdup
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174 # define strdup rpl_strdup
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175 # endif
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176 # if !(@HAVE_DECL_STRDUP@ || defined strdup) || @REPLACE_STRDUP@
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177 extern char *strdup (char const *__s);
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178 # endif
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179 #elif defined GNULIB_POSIXCHECK
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180 # undef strdup
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181 # define strdup(a) \
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182 (GL_LINK_WARNING ("strdup is unportable - " \
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183 "use gnulib module strdup for portability"), \
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184 strdup (a))
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185 #endif
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186
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187 /* Return a newly allocated copy of at most N bytes of STRING. */
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188 #if @GNULIB_STRNDUP@
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189 # if ! @HAVE_STRNDUP@
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190 # undef strndup
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191 # define strndup rpl_strndup
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192 # endif
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193 # if ! @HAVE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@
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194 extern char *strndup (char const *__string, size_t __n);
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195 # endif
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196 #elif defined GNULIB_POSIXCHECK
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197 # undef strndup
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198 # define strndup(a,n) \
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199 (GL_LINK_WARNING ("strndup is unportable - " \
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200 "use gnulib module strndup for portability"), \
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201 strndup (a, n))
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202 #endif
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203
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204 /* Find the length (number of bytes) of STRING, but scan at most
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205 MAXLEN bytes. If no '\0' terminator is found in that many bytes,
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206 return MAXLEN. */
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207 #if @GNULIB_STRNLEN@
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208 # if ! @HAVE_DECL_STRNLEN@
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209 extern size_t strnlen (char const *__string, size_t __maxlen)
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210 __attribute__ ((__pure__));
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211 # endif
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212 #elif defined GNULIB_POSIXCHECK
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213 # undef strnlen
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214 # define strnlen(a,n) \
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215 (GL_LINK_WARNING ("strnlen is unportable - " \
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216 "use gnulib module strnlen for portability"), \
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217 strnlen (a, n))
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218 #endif
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219
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220 #if defined GNULIB_POSIXCHECK
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221 /* strcspn() assumes the second argument is a list of single-byte characters.
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222 Even in this simple case, it does not work with multibyte strings if the
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223 locale encoding is GB18030 and one of the characters to be searched is a
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224 digit. */
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225 # undef strcspn
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226 # define strcspn(s,a) \
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227 (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \
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228 "in multibyte locales - " \
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229 "use mbscspn if you care about internationalization"), \
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230 strcspn (s, a))
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231 #endif
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232
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233 /* Find the first occurrence in S of any character in ACCEPT. */
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234 #if @GNULIB_STRPBRK@
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235 # if ! @HAVE_STRPBRK@
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236 extern char *strpbrk (char const *__s, char const *__accept)
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237 __attribute__ ((__pure__));
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238 # endif
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239 # if defined GNULIB_POSIXCHECK
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240 /* strpbrk() assumes the second argument is a list of single-byte characters.
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241 Even in this simple case, it does not work with multibyte strings if the
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242 locale encoding is GB18030 and one of the characters to be searched is a
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243 digit. */
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244 # undef strpbrk
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245 # define strpbrk(s,a) \
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246 (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \
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247 "in multibyte locales - " \
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248 "use mbspbrk if you care about internationalization"), \
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249 strpbrk (s, a))
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250 # endif
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251 #elif defined GNULIB_POSIXCHECK
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252 # undef strpbrk
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253 # define strpbrk(s,a) \
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254 (GL_LINK_WARNING ("strpbrk is unportable - " \
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255 "use gnulib module strpbrk for portability"), \
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256 strpbrk (s, a))
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257 #endif
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258
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259 #if defined GNULIB_POSIXCHECK
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260 /* strspn() assumes the second argument is a list of single-byte characters.
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261 Even in this simple case, it cannot work with multibyte strings. */
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262 # undef strspn
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263 # define strspn(s,a) \
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264 (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \
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265 "in multibyte locales - " \
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266 "use mbsspn if you care about internationalization"), \
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267 strspn (s, a))
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268 #endif
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269
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270 #if defined GNULIB_POSIXCHECK
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271 /* strrchr() does not work with multibyte strings if the locale encoding is
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272 GB18030 and the character to be searched is a digit. */
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273 # undef strrchr
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274 # define strrchr(s,c) \
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275 (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \
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276 "in some multibyte locales - " \
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277 "use mbsrchr if you care about internationalization"), \
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278 strrchr (s, c))
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279 #endif
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280
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281 /* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
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282 If one is found, overwrite it with a NUL, and advance *STRINGP
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283 to point to the next char after it. Otherwise, set *STRINGP to NULL.
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284 If *STRINGP was already NULL, nothing happens.
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285 Return the old value of *STRINGP.
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286
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287 This is a variant of strtok() that is multithread-safe and supports
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288 empty fields.
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289
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290 Caveat: It modifies the original string.
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291 Caveat: These functions cannot be used on constant strings.
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292 Caveat: The identity of the delimiting character is lost.
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293 Caveat: It doesn't work with multibyte strings unless all of the delimiter
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294 characters are ASCII characters < 0x30.
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295
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296 See also strtok_r(). */
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297 #if @GNULIB_STRSEP@
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298 # if ! @HAVE_STRSEP@
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299 extern char *strsep (char **restrict __stringp, char const *restrict __delim);
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300 # endif
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301 # if defined GNULIB_POSIXCHECK
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302 # undef strsep
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303 # define strsep(s,d) \
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304 (GL_LINK_WARNING ("strsep cannot work correctly on character strings " \
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305 "in multibyte locales - " \
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306 "use mbssep if you care about internationalization"), \
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307 strsep (s, d))
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308 # endif
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309 #elif defined GNULIB_POSIXCHECK
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310 # undef strsep
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311 # define strsep(s,d) \
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312 (GL_LINK_WARNING ("strsep is unportable - " \
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313 "use gnulib module strsep for portability"), \
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314 strsep (s, d))
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315 #endif
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316
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317 #if @GNULIB_STRSTR@
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318 # if @REPLACE_STRSTR@
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319 # define strstr rpl_strstr
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320 char *strstr (const char *haystack, const char *needle)
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321 __attribute__ ((__pure__));
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322 # endif
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323 #elif defined GNULIB_POSIXCHECK
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324 /* strstr() does not work with multibyte strings if the locale encoding is
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325 different from UTF-8:
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326 POSIX says that it operates on "strings", and "string" in POSIX is defined
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327 as a sequence of bytes, not of characters. */
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328 # undef strstr
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329 # define strstr(a,b) \
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330 (GL_LINK_WARNING ("strstr is quadratic on many systems, and cannot " \
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331 "work correctly on character strings in most " \
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332 "multibyte locales - " \
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333 "use mbsstr if you care about internationalization, " \
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334 "or use strstr if you care about speed"), \
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335 strstr (a, b))
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336 #endif
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337
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338 /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
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339 comparison. */
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340 #if @GNULIB_STRCASESTR@
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341 # if @REPLACE_STRCASESTR@
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342 # define strcasestr rpl_strcasestr
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343 # endif
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344 # if ! @HAVE_STRCASESTR@ || @REPLACE_STRCASESTR@
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345 extern char *strcasestr (const char *haystack, const char *needle)
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346 __attribute__ ((__pure__));
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347 # endif
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348 #elif defined GNULIB_POSIXCHECK
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349 /* strcasestr() does not work with multibyte strings:
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350 It is a glibc extension, and glibc implements it only for unibyte
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351 locales. */
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352 # undef strcasestr
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353 # define strcasestr(a,b) \
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354 (GL_LINK_WARNING ("strcasestr does work correctly on character strings " \
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355 "in multibyte locales - " \
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356 "use mbscasestr if you care about " \
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357 "internationalization, or use c-strcasestr if you want " \
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358 "a locale independent function"), \
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359 strcasestr (a, b))
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360 #endif
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361
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362 /* Parse S into tokens separated by characters in DELIM.
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363 If S is NULL, the saved pointer in SAVE_PTR is used as
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364 the next starting point. For example:
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365 char s[] = "-abc-=-def";
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366 char *sp;
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367 x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def"
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368 x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL
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369 x = strtok_r(NULL, "=", &sp); // x = NULL
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370 // s = "abc\0-def\0"
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371
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372 This is a variant of strtok() that is multithread-safe.
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373
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374 For the POSIX documentation for this function, see:
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375 http://www.opengroup.org/susv3xsh/strtok.html
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376
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377 Caveat: It modifies the original string.
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378 Caveat: These functions cannot be used on constant strings.
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379 Caveat: The identity of the delimiting character is lost.
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380 Caveat: It doesn't work with multibyte strings unless all of the delimiter
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381 characters are ASCII characters < 0x30.
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382
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383 See also strsep(). */
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384 #if @GNULIB_STRTOK_R@
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385 # if ! @HAVE_DECL_STRTOK_R@
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386 extern char *strtok_r (char *restrict s, char const *restrict delim,
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387 char **restrict save_ptr);
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388 # endif
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389 # if defined GNULIB_POSIXCHECK
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390 # undef strtok_r
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391 # define strtok_r(s,d,p) \
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392 (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings " \
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393 "in multibyte locales - " \
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394 "use mbstok_r if you care about internationalization"), \
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395 strtok_r (s, d, p))
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396 # endif
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397 #elif defined GNULIB_POSIXCHECK
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398 # undef strtok_r
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399 # define strtok_r(s,d,p) \
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400 (GL_LINK_WARNING ("strtok_r is unportable - " \
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401 "use gnulib module strtok_r for portability"), \
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402 strtok_r (s, d, p))
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403 #endif
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404
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405
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406 /* The following functions are not specified by POSIX. They are gnulib
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407 extensions. */
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408
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409 #if @GNULIB_MBSLEN@
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410 /* Return the number of multibyte characters in the character string STRING.
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411 This considers multibyte characters, unlike strlen, which counts bytes. */
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412 extern size_t mbslen (const char *string);
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413 #endif
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414
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415 #if @GNULIB_MBSNLEN@
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416 /* Return the number of multibyte characters in the character string starting
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417 at STRING and ending at STRING + LEN. */
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418 extern size_t mbsnlen (const char *string, size_t len);
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419 #endif
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420
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421 #if @GNULIB_MBSCHR@
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422 /* Locate the first single-byte character C in the character string STRING,
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423 and return a pointer to it. Return NULL if C is not found in STRING.
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424 Unlike strchr(), this function works correctly in multibyte locales with
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425 encodings such as GB18030. */
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426 # define mbschr rpl_mbschr /* avoid collision with HP-UX function */
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427 extern char * mbschr (const char *string, int c);
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428 #endif
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429
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430 #if @GNULIB_MBSRCHR@
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431 /* Locate the last single-byte character C in the character string STRING,
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432 and return a pointer to it. Return NULL if C is not found in STRING.
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433 Unlike strrchr(), this function works correctly in multibyte locales with
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434 encodings such as GB18030. */
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435 # define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */
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436 extern char * mbsrchr (const char *string, int c);
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437 #endif
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438
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439 #if @GNULIB_MBSSTR@
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440 /* Find the first occurrence of the character string NEEDLE in the character
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441 string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK.
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442 Unlike strstr(), this function works correctly in multibyte locales with
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443 encodings different from UTF-8. */
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444 extern char * mbsstr (const char *haystack, const char *needle);
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445 #endif
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446
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447 #if @GNULIB_MBSCASECMP@
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448 /* Compare the character strings S1 and S2, ignoring case, returning less than,
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449 equal to or greater than zero if S1 is lexicographically less than, equal to
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450 or greater than S2.
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451 Note: This function may, in multibyte locales, return 0 for strings of
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452 different lengths!
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453 Unlike strcasecmp(), this function works correctly in multibyte locales. */
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454 extern int mbscasecmp (const char *s1, const char *s2);
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455 #endif
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|
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456
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457 #if @GNULIB_MBSNCASECMP@
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458 /* Compare the initial segment of the character string S1 consisting of at most
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459 N characters with the initial segment of the character string S2 consisting
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460 of at most N characters, ignoring case, returning less than, equal to or
|
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461 greater than zero if the initial segment of S1 is lexicographically less
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462 than, equal to or greater than the initial segment of S2.
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|
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463 Note: This function may, in multibyte locales, return 0 for initial segments
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|
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464 of different lengths!
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|
465 Unlike strncasecmp(), this function works correctly in multibyte locales.
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|
|
466 But beware that N is not a byte count but a character count! */
|
|
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467 extern int mbsncasecmp (const char *s1, const char *s2, size_t n);
|
|
|
468 #endif
|
|
|
469
|
|
|
470 #if @GNULIB_MBSPCASECMP@
|
|
|
471 /* Compare the initial segment of the character string STRING consisting of
|
|
|
472 at most mbslen (PREFIX) characters with the character string PREFIX,
|
|
|
473 ignoring case, returning less than, equal to or greater than zero if this
|
|
|
474 initial segment is lexicographically less than, equal to or greater than
|
|
|
475 PREFIX.
|
|
|
476 Note: This function may, in multibyte locales, return 0 if STRING is of
|
|
|
477 smaller length than PREFIX!
|
|
|
478 Unlike strncasecmp(), this function works correctly in multibyte
|
|
|
479 locales. */
|
|
|
480 extern char * mbspcasecmp (const char *string, const char *prefix);
|
|
|
481 #endif
|
|
|
482
|
|
|
483 #if @GNULIB_MBSCASESTR@
|
|
|
484 /* Find the first occurrence of the character string NEEDLE in the character
|
|
|
485 string HAYSTACK, using case-insensitive comparison.
|
|
|
486 Note: This function may, in multibyte locales, return success even if
|
|
|
487 strlen (haystack) < strlen (needle) !
|
|
|
488 Unlike strcasestr(), this function works correctly in multibyte locales. */
|
|
|
489 extern char * mbscasestr (const char *haystack, const char *needle);
|
|
|
490 #endif
|
|
|
491
|
|
|
492 #if @GNULIB_MBSCSPN@
|
|
|
493 /* Find the first occurrence in the character string STRING of any character
|
|
|
494 in the character string ACCEPT. Return the number of bytes from the
|
|
|
495 beginning of the string to this occurrence, or to the end of the string
|
|
|
496 if none exists.
|
|
|
497 Unlike strcspn(), this function works correctly in multibyte locales. */
|
|
|
498 extern size_t mbscspn (const char *string, const char *accept);
|
|
|
499 #endif
|
|
|
500
|
|
|
501 #if @GNULIB_MBSPBRK@
|
|
|
502 /* Find the first occurrence in the character string STRING of any character
|
|
|
503 in the character string ACCEPT. Return the pointer to it, or NULL if none
|
|
|
504 exists.
|
|
|
505 Unlike strpbrk(), this function works correctly in multibyte locales. */
|
|
|
506 # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
|
|
|
507 extern char * mbspbrk (const char *string, const char *accept);
|
|
|
508 #endif
|
|
|
509
|
|
|
510 #if @GNULIB_MBSSPN@
|
|
|
511 /* Find the first occurrence in the character string STRING of any character
|
|
|
512 not in the character string REJECT. Return the number of bytes from the
|
|
|
513 beginning of the string to this occurrence, or to the end of the string
|
|
|
514 if none exists.
|
|
|
515 Unlike strspn(), this function works correctly in multibyte locales. */
|
|
|
516 extern size_t mbsspn (const char *string, const char *reject);
|
|
|
517 #endif
|
|
|
518
|
|
|
519 #if @GNULIB_MBSSEP@
|
|
|
520 /* Search the next delimiter (multibyte character listed in the character
|
|
|
521 string DELIM) starting at the character string *STRINGP.
|
|
|
522 If one is found, overwrite it with a NUL, and advance *STRINGP to point
|
|
|
523 to the next multibyte character after it. Otherwise, set *STRINGP to NULL.
|
|
|
524 If *STRINGP was already NULL, nothing happens.
|
|
|
525 Return the old value of *STRINGP.
|
|
|
526
|
|
|
527 This is a variant of mbstok_r() that supports empty fields.
|
|
|
528
|
|
|
529 Caveat: It modifies the original string.
|
|
|
530 Caveat: These functions cannot be used on constant strings.
|
|
|
531 Caveat: The identity of the delimiting character is lost.
|
|
|
532
|
|
|
533 See also mbstok_r(). */
|
|
|
534 extern char * mbssep (char **stringp, const char *delim);
|
|
|
535 #endif
|
|
|
536
|
|
|
537 #if @GNULIB_MBSTOK_R@
|
|
|
538 /* Parse the character string STRING into tokens separated by characters in
|
|
|
539 the character string DELIM.
|
|
|
540 If STRING is NULL, the saved pointer in SAVE_PTR is used as
|
|
|
541 the next starting point. For example:
|
|
|
542 char s[] = "-abc-=-def";
|
|
|
543 char *sp;
|
|
|
544 x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
|
|
545 x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
|
|
546 x = mbstok_r(NULL, "=", &sp); // x = NULL
|
|
|
547 // s = "abc\0-def\0"
|
|
|
548
|
|
|
549 Caveat: It modifies the original string.
|
|
|
550 Caveat: These functions cannot be used on constant strings.
|
|
|
551 Caveat: The identity of the delimiting character is lost.
|
|
|
552
|
|
|
553 See also mbssep(). */
|
|
|
554 extern char * mbstok_r (char *string, const char *delim, char **save_ptr);
|
|
|
555 #endif
|
|
|
556
|
|
|
557 /* Map any int, typically from errno, into an error message. */
|
|
|
558 #if @GNULIB_STRERROR@
|
|
|
559 # if @REPLACE_STRERROR@
|
|
|
560 # undef strerror
|
|
|
561 # define strerror rpl_strerror
|
|
|
562 extern char *strerror (int);
|
|
|
563 # endif
|
|
|
564 #elif defined GNULIB_POSIXCHECK
|
|
|
565 # undef strerror
|
|
|
566 # define strerror(e) \
|
|
|
567 (GL_LINK_WARNING ("strerror is unportable - " \
|
|
|
568 "use gnulib module strerror to guarantee non-NULL result"), \
|
|
|
569 strerror (e))
|
|
|
570 #endif
|
|
|
571
|
|
|
572 #if @GNULIB_STRSIGNAL@
|
|
|
573 # if @REPLACE_STRSIGNAL@
|
|
|
574 # define strsignal rpl_strsignal
|
|
|
575 # endif
|
|
|
576 # if ! @HAVE_DECL_STRSIGNAL@ || @REPLACE_STRSIGNAL@
|
|
|
577 extern char *strsignal (int __sig);
|
|
|
578 # endif
|
|
|
579 #elif defined GNULIB_POSIXCHECK
|
|
|
580 # undef strsignal
|
|
|
581 # define strsignal(a) \
|
|
|
582 (GL_LINK_WARNING ("strsignal is unportable - " \
|
|
|
583 "use gnulib module strsignal for portability"), \
|
|
|
584 strsignal (a))
|
|
|
585 #endif
|
|
|
586
|
|
|
587 #if @GNULIB_STRVERSCMP@
|
|
|
588 # if !@HAVE_STRVERSCMP@
|
|
|
589 extern int strverscmp (const char *, const char *);
|
|
|
590 # endif
|
|
|
591 #elif defined GNULIB_POSIXCHECK
|
|
|
592 # undef strverscmp
|
|
|
593 # define strverscmp(a, b) \
|
|
|
594 (GL_LINK_WARNING ("strverscmp is unportable - " \
|
|
|
595 "use gnulib module strverscmp for portability"), \
|
|
|
596 strverscmp (a, b))
|
|
|
597 #endif
|
|
|
598
|
|
|
599
|
|
|
600 #ifdef __cplusplus
|
|
|
601 }
|
|
|
602 #endif
|
|
|
603
|
|
|
604 #endif /* _GL_STRING_H */
|
|
|
605 #endif /* _GL_STRING_H */
|
