annotate lib/stdio.in.h @ 12839:c6d23570567d

Work around getdelim() bug on FreeBSD 8.0.
author Bruno Haible <bruno@clisp.org>
date Sun, 31 Jan 2010 17:43:25 +0100
parents 2c14f1e449e5
children 1825e6a0ff37
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1 /* A GNU-like <stdio.h>.
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2
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3 Copyright (C) 2004, 2007-2010 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 2, 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 #if __GNUC__ >= 3
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20 @PRAGMA_SYSTEM_HEADER@
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21 #endif
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22
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23 #if defined __need_FILE || defined __need___FILE
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24 /* Special invocation convention inside glibc header files. */
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25
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26 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
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27
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28 #else
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29 /* Normal invocation convention. */
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30
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31 #ifndef _GL_STDIO_H
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32
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33 /* The include_next requires a split double-inclusion guard. */
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34 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
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35
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36 #ifndef _GL_STDIO_H
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37 #define _GL_STDIO_H
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38
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39 /* Get va_list. Needed on many systems, including glibc 2.8. */
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40 #include <stdarg.h>
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41
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42 #include <stddef.h>
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43
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44 /* Get off_t and ssize_t. Needed on many systems, including glibc 2.8. */
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45 #include <sys/types.h>
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46
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47 #ifndef __attribute__
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48 /* The __attribute__ feature is available in gcc versions 2.5 and later.
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49 The __-protected variants of the attributes 'format' and 'printf' are
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50 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
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51 We enable __attribute__ only if these are supported too, because
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52 gnulib and libintl do '#define printf __printf__' when they override
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53 the 'printf' function. */
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54 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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55 # define __attribute__(Spec) /* empty */
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56 # endif
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57 #endif
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58
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59
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60 /* The definition of _GL_ARG_NONNULL is copied here. */
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61
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62 /* The definition of _GL_WARN_ON_USE is copied here. */
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63
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64
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65 #ifdef __cplusplus
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66 extern "C" {
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67 #endif
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68
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69 #if @GNULIB_DPRINTF@
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70 # if @REPLACE_DPRINTF@
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71 # define dprintf rpl_dprintf
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72 # endif
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73 # if @REPLACE_DPRINTF@ || !@HAVE_DPRINTF@
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74 extern int dprintf (int fd, const char *format, ...)
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75 __attribute__ ((__format__ (__printf__, 2, 3))) _GL_ARG_NONNULL ((2));
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76 # endif
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77 #elif defined GNULIB_POSIXCHECK
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78 # undef dprintf
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79 # if HAVE_RAW_DECL_DPRINTF
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80 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
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81 "use gnulib module dprintf for portability");
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82 # endif
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83 #endif
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84
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85 #if @GNULIB_FCLOSE@
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86 # if @REPLACE_FCLOSE@
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87 # define fclose rpl_fclose
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88 /* Close STREAM and its underlying file descriptor. */
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89 extern int fclose (FILE *stream) _GL_ARG_NONNULL ((1));
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90 # endif
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91 #elif defined GNULIB_POSIXCHECK
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92 # undef fclose
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93 /* Assume fclose is always declared. */
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94 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
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95 "use gnulib module fclose for portable POSIX compliance");
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96 #endif
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97
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98 #if @GNULIB_FFLUSH@
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99 # if @REPLACE_FFLUSH@
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100 # define fflush rpl_fflush
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101 /* Flush all pending data on STREAM according to POSIX rules. Both
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102 output and seekable input streams are supported.
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103 Note! LOSS OF DATA can occur if fflush is applied on an input stream
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104 that is _not_seekable_ or on an update stream that is _not_seekable_
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105 and in which the most recent operation was input. Seekability can
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106 be tested with lseek(fileno(fp),0,SEEK_CUR). */
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107 extern int fflush (FILE *gl_stream);
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108 # endif
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109 #elif defined GNULIB_POSIXCHECK
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110 # undef fflush
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111 /* Assume fflush is always declared. */
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112 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
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113 "use gnulib module fflush for portable POSIX compliance");
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114 #endif
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115
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116 /* It is very rare that the developer ever has full control of stdin,
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117 so any use of gets warrants an unconditional warning. Assume it is
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118 always declared, since it is required by C89. */
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119 #undef gets
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120 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
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121
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122 #if @GNULIB_FOPEN@
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123 # if @REPLACE_FOPEN@
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124 # undef fopen
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125 # define fopen rpl_fopen
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126 extern FILE * fopen (const char *filename, const char *mode)
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127 _GL_ARG_NONNULL ((1, 2));
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128 # endif
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129 #elif defined GNULIB_POSIXCHECK
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130 # undef fopen
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131 /* Assume fopen is always declared. */
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132 _GL_WARN_ON_USE (fopen, "fopen on Win32 platforms is not POSIX compatible - "
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133 "use gnulib module fopen for portability");
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134 #endif
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135
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136 #if @GNULIB_FPRINTF_POSIX@
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137 # if @REPLACE_FPRINTF@
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138 # define fprintf rpl_fprintf
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139 extern int fprintf (FILE *fp, const char *format, ...)
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140 __attribute__ ((__format__ (__printf__, 2, 3)))
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141 _GL_ARG_NONNULL ((1, 2));
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142 # endif
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143 #elif @GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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144 # define fprintf rpl_fprintf
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145 extern int fprintf (FILE *fp, const char *format, ...)
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146 __attribute__ ((__format__ (__printf__, 2, 3)))
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147 _GL_ARG_NONNULL ((1, 2));
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148 #elif defined GNULIB_POSIXCHECK
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149 # undef fprintf
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150 /* Assume fprintf is always declared. */
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151 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
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152 "use gnulib module fprintf-posix for portable "
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153 "POSIX compliance");
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154 #endif
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155
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156 #if @GNULIB_FPURGE@
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157 # if @REPLACE_FPURGE@
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158 # define fpurge rpl_fpurge
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159 # endif
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160 # if @REPLACE_FPURGE@ || !@HAVE_DECL_FPURGE@
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161 /* Discard all pending buffered I/O data on STREAM.
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162 STREAM must not be wide-character oriented.
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163 When discarding pending output, the file position is set back to where it
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164 was before the write calls. When discarding pending input, the file
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165 position is advanced to match the end of the previously read input.
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166 Return 0 if successful. Upon error, return -1 and set errno. */
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167 extern int fpurge (FILE *gl_stream) _GL_ARG_NONNULL ((1));
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168 # endif
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169 #elif defined GNULIB_POSIXCHECK
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170 # undef fpurge
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171 # if HAVE_RAW_DECL_FPURGE
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172 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
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173 "use gnulib module fpurge for portability");
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174 # endif
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175 #endif
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176
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177 #if @GNULIB_FPUTC@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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178 # undef fputc
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179 # define fputc rpl_fputc
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180 extern int fputc (int c, FILE *stream) _GL_ARG_NONNULL ((2));
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181 #endif
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182
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183 #if @GNULIB_FPUTS@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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184 # undef fputs
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185 # define fputs rpl_fputs
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186 extern int fputs (const char *string, FILE *stream) _GL_ARG_NONNULL ((1, 2));
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187 #endif
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188
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189 #if @GNULIB_FREOPEN@
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190 # if @REPLACE_FREOPEN@
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191 # undef freopen
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192 # define freopen rpl_freopen
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193 extern FILE * freopen (const char *filename, const char *mode, FILE *stream)
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194 _GL_ARG_NONNULL ((2, 3));
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195 # endif
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196 #elif defined GNULIB_POSIXCHECK
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197 # undef freopen
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198 /* Assume freopen is always declared. */
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199 _GL_WARN_ON_USE (freopen, "freopen on Win32 platforms is not POSIX compatible - "
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200 "use gnulib module freopen for portability");
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201 #endif
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202
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203 /* Set up the following warnings, based on which modules are in use.
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204 GNU Coding Standards discourage the use of fseek, since it imposes
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205 an arbitrary limitation on some 32-bit hosts. Remember that the
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206 fseek module depends on the fseeko module, so we only have three
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207 cases to consider:
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208
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209 1. The developer is not using either module. Issue a warning under
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210 GNULIB_POSIXCHECK for both functions, to remind them that both
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211 functions have bugs on some systems. _GL_NO_LARGE_FILES has no
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212 impact on this warning.
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213
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214 2. The developer is using both modules. They may be unaware of the
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215 arbitrary limitations of fseek, so issue a warning under
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216 GNULIB_POSIXCHECK. On the other hand, they may be using both
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217 modules intentionally, so the developer can define
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218 _GL_NO_LARGE_FILES in the compilation units where the use of fseek
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219 is safe, to silence the warning.
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220
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221 3. The developer is using the fseeko module, but not fseek. Gnulib
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222 guarantees that fseek will still work around platform bugs in that
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223 case, but we presume that the developer is aware of the pitfalls of
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224 fseek and was trying to avoid it, so issue a warning even when
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225 GNULIB_POSIXCHECK is undefined. Again, _GL_NO_LARGE_FILES can be
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226 defined to silence the warning in particular compilation units.
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227
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228 Most gnulib clients that perform stream operations should fall into
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229 category three. */
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230
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231 #if @GNULIB_FSEEK@
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232 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
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233 # define _GL_FSEEK_WARN /* Category 2, above. */
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234 # undef fseek
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235 # endif
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236 # if @REPLACE_FSEEK@
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237 # undef fseek
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238 # define fseek rpl_fseek
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239 extern int fseek (FILE *fp, long offset, int whence) _GL_ARG_NONNULL ((1));
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240 # endif
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241 #endif
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242
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243 #if @GNULIB_FSEEKO@
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244 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
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245 # define _GL_FSEEK_WARN /* Category 3, above. */
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246 # undef fseek
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247 # endif
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248 # if @REPLACE_FSEEKO@
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249 /* Provide fseek, fseeko functions that are aware of a preceding
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250 fflush(), and which detect pipes. */
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251 # undef fseeko
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252 # define fseeko rpl_fseeko
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253 extern int fseeko (FILE *fp, off_t offset, int whence) _GL_ARG_NONNULL ((1));
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254 # if !@GNULIB_FSEEK@
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255 # undef fseek
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256 # define fseek rpl_fseek
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257 static inline int _GL_ARG_NONNULL ((1))
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258 rpl_fseek (FILE *fp, long offset, int whence)
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259 {
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260 return fseeko (fp, offset, whence);
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261 }
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262 # endif
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263 # endif
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264 #elif defined GNULIB_POSIXCHECK
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265 # define _GL_FSEEK_WARN /* Category 1, above. */
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266 # undef fseek
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267 # undef fseeko
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268 # if HAVE_RAW_DECL_FSEEKO
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269 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
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270 "use gnulib module fseeko for portability");
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271 # endif
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272 #endif
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273
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274 #ifdef _GL_FSEEK_WARN
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275 # undef _GL_FSEEK_WARN
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276 /* Here, either fseek is undefined (but C89 guarantees that it is
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277 declared), or it is defined as rpl_fseek (declared above). */
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278 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
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279 "on 32-bit platforms - "
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280 "use fseeko function for handling of large files");
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281 #endif
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282
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diff changeset
283 /* See the comments on fseek/fseeko. */
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284
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285 #if @GNULIB_FTELL@
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286 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
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287 # define _GL_FTELL_WARN /* Category 2, above. */
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288 # undef ftell
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289 # endif
12734
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290 # if @REPLACE_FTELL@
12724
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291 # undef ftell
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292 # define ftell rpl_ftell
12724
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293 extern long ftell (FILE *fp) _GL_ARG_NONNULL ((1));
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294 # endif
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295 #endif
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296
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297 #if @GNULIB_FTELLO@
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298 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
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299 # define _GL_FTELL_WARN /* Category 3, above. */
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300 # undef ftell
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301 # endif
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302 # if @REPLACE_FTELLO@
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303 # undef ftello
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304 # define ftello rpl_ftello
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305 extern off_t ftello (FILE *fp) _GL_ARG_NONNULL ((1));
12202
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306 # if !@GNULIB_FTELL@
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307 # undef ftell
12724
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308 # define ftell rpl_ftell
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309 static inline long _GL_ARG_NONNULL ((1))
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310 rpl_ftell (FILE *f)
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311 {
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312 return ftello (f);
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313 }
12202
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314 # endif
11653
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315 # endif
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316 #elif defined GNULIB_POSIXCHECK
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317 # define _GL_FTELL_WARN /* Category 1, above. */
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318 # undef ftell
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319 # undef ftello
12724
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diff changeset
320 # if HAVE_RAW_DECL_FTELLO
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321 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
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diff changeset
322 "use gnulib module ftello for portability");
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323 # endif
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324 #endif
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325
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diff changeset
326 #ifdef _GL_FTELL_WARN
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diff changeset
327 # undef _GL_FTELL_WARN
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328 /* Here, either ftell is undefined (but C89 guarantees that it is
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diff changeset
329 declared), or it is defined as rpl_ftell (declared above). */
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diff changeset
330 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
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diff changeset
331 "on 32-bit platforms - "
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diff changeset
332 "use ftello function for handling of large files");
10487
953f72c1ffcc Support SIGPIPE in stdio functions for writing.
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diff changeset
333 #endif
953f72c1ffcc Support SIGPIPE in stdio functions for writing.
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diff changeset
334
953f72c1ffcc Support SIGPIPE in stdio functions for writing.
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diff changeset
335 #if @GNULIB_FWRITE@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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diff changeset
336 # undef fwrite
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diff changeset
337 # define fwrite rpl_fwrite
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
338 extern size_t fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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339 _GL_ARG_NONNULL ((1, 4));
10487
953f72c1ffcc Support SIGPIPE in stdio functions for writing.
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diff changeset
340 #endif
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diff changeset
341
9262
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
342 #if @GNULIB_GETDELIM@
12839
c6d23570567d Work around getdelim() bug on FreeBSD 8.0.
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diff changeset
343 # if @REPLACE_GETDELIM@
c6d23570567d Work around getdelim() bug on FreeBSD 8.0.
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344 # undef getdelim
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345 # define getdelim rpl_getdelim
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346 # endif
c6d23570567d Work around getdelim() bug on FreeBSD 8.0.
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diff changeset
347 # if !@HAVE_DECL_GETDELIM@ || @REPLACE_GETDELIM@
9262
9857038c7b89 Rename stdio_.h to stdio.in.h.
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348 /* Read input, up to (and including) the next occurrence of DELIMITER, from
9857038c7b89 Rename stdio_.h to stdio.in.h.
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349 STREAM, store it in *LINEPTR (and NUL-terminate it).
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350 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
351 bytes of space. It is realloc'd as necessary.
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
352 Return the number of bytes read and stored at *LINEPTR (not including the
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
353 NUL terminator), or -1 on error or EOF. */
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354 extern ssize_t getdelim (char **lineptr, size_t *linesize, int delimiter,
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
355 FILE *stream)
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
356 _GL_ARG_NONNULL ((1, 2, 4));
9262
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
357 # endif
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
358 #elif defined GNULIB_POSIXCHECK
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
359 # undef getdelim
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diff changeset
360 # if HAVE_RAW_DECL_GETDELIM
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diff changeset
361 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
362 "use gnulib module getdelim for portability");
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
363 # endif
9262
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
364 #endif
9857038c7b89 Rename stdio_.h to stdio.in.h.
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parents:
diff changeset
365
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
366 #if @GNULIB_GETLINE@
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
367 # if @REPLACE_GETLINE@
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
368 # undef getline
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
369 # define getline rpl_getline
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370 # endif
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diff changeset
371 # if !@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
372 /* Read a line, up to (and including) the next newline, from STREAM, store it
9857038c7b89 Rename stdio_.h to stdio.in.h.
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parents:
diff changeset
373 in *LINEPTR (and NUL-terminate it).
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
374 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
9857038c7b89 Rename stdio_.h to stdio.in.h.
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parents:
diff changeset
375 bytes of space. It is realloc'd as necessary.
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
376 Return the number of bytes read and stored at *LINEPTR (not including the
9857038c7b89 Rename stdio_.h to stdio.in.h.
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parents:
diff changeset
377 NUL terminator), or -1 on error or EOF. */
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
378 extern ssize_t getline (char **lineptr, size_t *linesize, FILE *stream)
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
379 _GL_ARG_NONNULL ((1, 2, 3));
9262
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
380 # endif
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
381 #elif defined GNULIB_POSIXCHECK
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
382 # undef getline
12766
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diff changeset
383 # if HAVE_RAW_DECL_GETLINE
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
384 _GL_WARN_ON_USE (getline, "getline is unportable - "
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
385 "use gnulib module getline for portability");
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diff changeset
386 # endif
9262
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diff changeset
387 #endif
9857038c7b89 Rename stdio_.h to stdio.in.h.
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diff changeset
388
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diff changeset
389 #if @GNULIB_OBSTACK_PRINTF@
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diff changeset
390 # if @REPLACE_OBSTACK_PRINTF@
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diff changeset
391 # define obstack_printf rpl_osbtack_printf
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diff changeset
392 # define obstack_vprintf rpl_obstack_vprintf
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diff changeset
393 # endif
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diff changeset
394 # if @REPLACE_OBSTACK_PRINTF@ || !@HAVE_DECL_OBSTACK_PRINTF@
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diff changeset
395 struct obstack;
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diff changeset
396 /* Grow an obstack with formatted output. Return the number of
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diff changeset
397 bytes added to OBS. No trailing nul byte is added, and the
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diff changeset
398 object should be closed with obstack_finish before use. Upon
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diff changeset
399 memory allocation error, call obstack_alloc_failed_handler. Upon
229df0a197d3 stdio: sort witness names
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diff changeset
400 other error, return -1. */
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diff changeset
401 extern int obstack_printf (struct obstack *obs, const char *format, ...)
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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parents: 12421
diff changeset
402 __attribute__ ((__format__ (__printf__, 2, 3))) _GL_ARG_NONNULL ((1, 2));
11971
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diff changeset
403 extern int obstack_vprintf (struct obstack *obs, const char *format,
12421
e8d2c6fc33ad Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
parents: 12418
diff changeset
404 va_list args)
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
405 __attribute__ ((__format__ (__printf__, 2, 0))) _GL_ARG_NONNULL ((1, 2));
11971
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diff changeset
406 # endif
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diff changeset
407 #endif
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diff changeset
408
10433
02b0f65bfbfc New module 'perror'.
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parents: 10375
diff changeset
409 #if @GNULIB_PERROR@
02b0f65bfbfc New module 'perror'.
Bruno Haible <bruno@clisp.org>
parents: 10375
diff changeset
410 # if @REPLACE_PERROR@
02b0f65bfbfc New module 'perror'.
Bruno Haible <bruno@clisp.org>
parents: 10375
diff changeset
411 # define perror rpl_perror
02b0f65bfbfc New module 'perror'.
Bruno Haible <bruno@clisp.org>
parents: 10375
diff changeset
412 /* Print a message to standard error, describing the value of ERRNO,
02b0f65bfbfc New module 'perror'.
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diff changeset
413 (if STRING is not NULL and not empty) prefixed with STRING and ": ",
02b0f65bfbfc New module 'perror'.
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diff changeset
414 and terminated with a newline. */
02b0f65bfbfc New module 'perror'.
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diff changeset
415 extern void perror (const char *string);
02b0f65bfbfc New module 'perror'.
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diff changeset
416 # endif
02b0f65bfbfc New module 'perror'.
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parents: 10375
diff changeset
417 #elif defined GNULIB_POSIXCHECK
02b0f65bfbfc New module 'perror'.
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diff changeset
418 # undef perror
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419 /* Assume perror is always declared. */
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420 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
421 "use gnulib module perror for portability");
10433
02b0f65bfbfc New module 'perror'.
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diff changeset
422 #endif
02b0f65bfbfc New module 'perror'.
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diff changeset
423
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424 #if @GNULIB_POPEN@
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425 # if @REPLACE_POPEN@
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diff changeset
426 # undef popen
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diff changeset
427 # define popen rpl_popen
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diff changeset
428 extern FILE *popen (const char *cmd, const char *mode)
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
429 _GL_ARG_NONNULL ((1, 2));
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430 # endif
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431 #elif defined GNULIB_POSIXCHECK
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432 # undef popen
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433 # if HAVE_RAW_DECL_POPEN
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diff changeset
434 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
435 "use gnulib module popen or pipe for more portability");
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
436 # endif
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437 #endif
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438
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diff changeset
439 #if @GNULIB_PRINTF_POSIX@
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diff changeset
440 # if @REPLACE_PRINTF@
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diff changeset
441 /* Don't break __attribute__((format(printf,M,N))). */
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diff changeset
442 # define printf __printf__
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443 extern int printf (const char *format, ...)
12422
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diff changeset
444 __attribute__ ((__format__ (__printf__, 1, 2))) _GL_ARG_NONNULL ((1));
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diff changeset
445 # endif
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446 #elif @GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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447 /* Don't break __attribute__((format(printf,M,N))). */
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diff changeset
448 # define printf __printf__
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diff changeset
449 extern int printf (const char *format, ...)
12422
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diff changeset
450 __attribute__ ((__format__ (__printf__, 1, 2))) _GL_ARG_NONNULL ((1));
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451 #elif defined GNULIB_POSIXCHECK
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452 # undef printf
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diff changeset
453 /* Assume printf is always declared. */
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diff changeset
454 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
455 "use gnulib module printf-posix for portable "
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
456 "POSIX compliance");
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diff changeset
457 #endif
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diff changeset
458
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diff changeset
459 #if @GNULIB_PUTC@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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diff changeset
460 # undef putc
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diff changeset
461 # define putc rpl_fputc
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
462 extern int putc (int c, FILE *stream) _GL_ARG_NONNULL ((2));
11971
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diff changeset
463 #endif
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diff changeset
464
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diff changeset
465 #if @GNULIB_PUTCHAR@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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diff changeset
466 # undef putchar
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diff changeset
467 # define putchar rpl_putchar
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diff changeset
468 extern int putchar (int c);
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diff changeset
469 #endif
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diff changeset
470
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diff changeset
471 #if @GNULIB_PUTS@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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diff changeset
472 # undef puts
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diff changeset
473 # define puts rpl_puts
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
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diff changeset
474 extern int puts (const char *string) _GL_ARG_NONNULL ((1));
11971
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diff changeset
475 #endif
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diff changeset
476
12041
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
parents: 11972
diff changeset
477 #if @GNULIB_REMOVE@
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
parents: 11972
diff changeset
478 # if @REPLACE_REMOVE@
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
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diff changeset
479 # undef remove
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
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diff changeset
480 # define remove rpl_remove
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
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diff changeset
481 extern int remove (const char *name) _GL_ARG_NONNULL ((1));
12041
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
parents: 11972
diff changeset
482 # endif
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
parents: 11972
diff changeset
483 #elif defined GNULIB_POSIXCHECK
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
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diff changeset
484 # undef remove
12766
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diff changeset
485 /* Assume remove is always declared. */
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
486 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
2c14f1e449e5 warn-on-use: use instead of link-warning
Eric Blake <ebb9@byu.net>
parents: 12762
diff changeset
487 "use gnulib module remove for more portability");
12041
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
parents: 11972
diff changeset
488 #endif
73e9ab6e2c90 remove: new module, for mingw and Solaris 9 bugs
Eric Blake <ebb9@byu.net>
parents: 11972
diff changeset
489
11972
24ed6ac9fe07 rename: modernize replacement
Eric Blake <ebb9@byu.net>
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diff changeset
490 #if @GNULIB_RENAME@
24ed6ac9fe07 rename: modernize replacement
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diff changeset
491 # if @REPLACE_RENAME@
24ed6ac9fe07 rename: modernize replacement
Eric Blake <ebb9@byu.net>
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diff changeset
492 # undef rename
24ed6ac9fe07 rename: modernize replacement
Eric Blake <ebb9@byu.net>
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diff changeset
493 # define rename rpl_rename
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
494 extern int rename (const char *old_filename, const char *new_filename)
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
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diff changeset
495 _GL_ARG_NONNULL ((1, 2));
11972
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diff changeset
496 # endif
24ed6ac9fe07 rename: modernize replacement
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parents: 11971
diff changeset
497 #elif defined GNULIB_POSIXCHECK
24ed6ac9fe07 rename: modernize replacement
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diff changeset
498 # undef rename
12766
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diff changeset
499 /* Assume rename is always declared. */
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diff changeset
500 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
2c14f1e449e5 warn-on-use: use instead of link-warning
Eric Blake <ebb9@byu.net>
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diff changeset
501 "use gnulib module rename for more portability");
11972
24ed6ac9fe07 rename: modernize replacement
Eric Blake <ebb9@byu.net>
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diff changeset
502 #endif
24ed6ac9fe07 rename: modernize replacement
Eric Blake <ebb9@byu.net>
parents: 11971
diff changeset
503
12099
01c66cf797b5 renameat: new module
Eric Blake <ebb9@byu.net>
parents: 12041
diff changeset
504 #if @GNULIB_RENAMEAT@
12100
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parents: 12099
diff changeset
505 # if @REPLACE_RENAMEAT@
8e81b30aa8b7 renameat: fix Solaris bugs
Eric Blake <ebb9@byu.net>
parents: 12099
diff changeset
506 # undef renameat
8e81b30aa8b7 renameat: fix Solaris bugs
Eric Blake <ebb9@byu.net>
parents: 12099
diff changeset
507 # define renameat rpl_renameat
8e81b30aa8b7 renameat: fix Solaris bugs
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parents: 12099
diff changeset
508 # endif
8e81b30aa8b7 renameat: fix Solaris bugs
Eric Blake <ebb9@byu.net>
parents: 12099
diff changeset
509 # if !@HAVE_RENAMEAT@ || @REPLACE_RENAMEAT@
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
510 extern int renameat (int fd1, char const *file1, int fd2, char const *file2)
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
511 _GL_ARG_NONNULL ((2, 4));
12099
01c66cf797b5 renameat: new module
Eric Blake <ebb9@byu.net>
parents: 12041
diff changeset
512 # endif
01c66cf797b5 renameat: new module
Eric Blake <ebb9@byu.net>
parents: 12041
diff changeset
513 #elif defined GNULIB_POSIXCHECK
01c66cf797b5 renameat: new module
Eric Blake <ebb9@byu.net>
parents: 12041
diff changeset
514 # undef renameat
12766
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
515 # if HAVE_RAW_DECL_RENAMEAT
2c14f1e449e5 warn-on-use: use instead of link-warning
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parents: 12762
diff changeset
516 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
2c14f1e449e5 warn-on-use: use instead of link-warning
Eric Blake <ebb9@byu.net>
parents: 12762
diff changeset
517 "use gnulib module renameat for portability");
2c14f1e449e5 warn-on-use: use instead of link-warning
Eric Blake <ebb9@byu.net>
parents: 12762
diff changeset
518 # endif
12099
01c66cf797b5 renameat: new module
Eric Blake <ebb9@byu.net>
parents: 12041
diff changeset
519 #endif
01c66cf797b5 renameat: new module
Eric Blake <ebb9@byu.net>
parents: 12041
diff changeset
520
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diff changeset
521 #if @GNULIB_SNPRINTF@
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diff changeset
522 # if @REPLACE_SNPRINTF@
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diff changeset
523 # define snprintf rpl_snprintf
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diff changeset
524 # endif
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diff changeset
525 # if @REPLACE_SNPRINTF@ || !@HAVE_DECL_SNPRINTF@
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diff changeset
526 extern int snprintf (char *str, size_t size, const char *format, ...)
12422
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
527 __attribute__ ((__format__ (__printf__, 3, 4)))
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
528 _GL_ARG_NONNULL ((3));
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diff changeset
529 # endif
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diff changeset
530 #elif defined GNULIB_POSIXCHECK
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diff changeset
531 # undef snprintf
12766
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diff changeset
532 # if HAVE_RAW_DECL_SNPRINTF
2c14f1e449e5 warn-on-use: use instead of link-warning
Eric Blake <ebb9@byu.net>
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diff changeset
533 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
2c14f1e449e5 warn-on-use: use instead of link-warning
Eric Blake <ebb9@byu.net>
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diff changeset
534 "use gnulib module snprintf for portability");
2c14f1e449e5 warn-on-use: use instead of link-warning
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diff changeset
535 # endif
11971
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diff changeset
536 #endif
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diff changeset
537
12724
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Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
538 /* Some people would argue that sprintf should be handled like gets
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
539 (for example, OpenBSD issues a link warning for both functions),
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
540 since both can cause security holes due to buffer overruns.
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
541 However, we believe that sprintf can be used safely, and is more
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
542 efficient than snprintf in those safe cases; and as proof of our
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
543 belief, we use sprintf in several gnulib modules. So this header
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
544 intentionally avoids adding a warning to sprintf except when
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
545 GNULIB_POSIXCHECK is defined. */
bc2866336bbb stdio: warn on suspicious uses
Eric Blake <ebb9@byu.net>
parents: 12600
diff changeset
546
11971
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diff changeset
547 #if @GNULIB_SPRINTF_POSIX@
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diff changeset
548 # if @REPLACE_SPRINTF@
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diff changeset
549 # define sprintf rpl_sprintf
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diff changeset
550 extern int sprintf (char *str, const char *format, ...)
12422
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Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
551 __attribute__ ((__format__ (__printf__, 2, 3)))
f7842310a565 New module 'arg-nonnull'. Declare which arguments expect non-NULL values.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
552 _GL_ARG_NONNULL ((1, 2));
11971
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553 # endif
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554 #elif defined GNULIB_POSIXCHECK
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555 # undef sprintf
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556 /* Assume sprintf is always declared. */
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557 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
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558 "use gnulib module sprintf-posix for portable "
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559 "POSIX compliance");
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560 #endif
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561
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562 #if @GNULIB_VASPRINTF@
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563 # if @REPLACE_VASPRINTF@
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564 # define asprintf rpl_asprintf
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565 # define vasprintf rpl_vasprintf
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566 # endif
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567 # if @REPLACE_VASPRINTF@ || !@HAVE_VASPRINTF@
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568 /* Write formatted output to a string dynamically allocated with malloc().
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569 If the memory allocation succeeds, store the address of the string in
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570 *RESULT and return the number of resulting bytes, excluding the trailing
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571 NUL. Upon memory allocation error, or some other error, return -1. */
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572 extern int asprintf (char **result, const char *format, ...)
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573 __attribute__ ((__format__ (__printf__, 2, 3))) _GL_ARG_NONNULL ((1, 2));
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574 extern int vasprintf (char **result, const char *format, va_list args)
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575 __attribute__ ((__format__ (__printf__, 2, 0))) _GL_ARG_NONNULL ((1, 2));
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576 # endif
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577 #endif
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578
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579 #if @GNULIB_VDPRINTF@
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580 # if @REPLACE_VDPRINTF@
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581 # define vdprintf rpl_vdprintf
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582 # endif
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583 # if @REPLACE_VDPRINTF@ || !@HAVE_VDPRINTF@
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584 extern int vdprintf (int fd, const char *format, va_list args)
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585 __attribute__ ((__format__ (__printf__, 2, 0))) _GL_ARG_NONNULL ((2));
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586 # endif
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587 #elif defined GNULIB_POSIXCHECK
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588 # undef vdprintf
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589 # if HAVE_RAW_DECL_VDPRINTF
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590 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
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591 "use gnulib module vdprintf for portability");
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592 # endif
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593 #endif
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594
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595 #if @GNULIB_VFPRINTF_POSIX@
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596 # if @REPLACE_VFPRINTF@
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597 # define vfprintf rpl_vfprintf
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598 extern int vfprintf (FILE *fp, const char *format, va_list args)
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599 __attribute__ ((__format__ (__printf__, 2, 0)))
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600 _GL_ARG_NONNULL ((1, 2));
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601 # endif
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602 #elif @GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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603 # define vfprintf rpl_vfprintf
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604 extern int vfprintf (FILE *fp, const char *format, va_list args)
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605 __attribute__ ((__format__ (__printf__, 2, 0)))
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diff changeset
606 _GL_ARG_NONNULL ((1, 2));
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607 #elif defined GNULIB_POSIXCHECK
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608 # undef vfprintf
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609 /* Assume vfprintf is always declared. */
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diff changeset
610 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
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diff changeset
611 "use gnulib module vfprintf-posix for portable "
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diff changeset
612 "POSIX compliance");
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613 #endif
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614
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615 #if @GNULIB_VPRINTF_POSIX@
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616 # if @REPLACE_VPRINTF@
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617 # define vprintf rpl_vprintf
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618 extern int vprintf (const char *format, va_list args)
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619 __attribute__ ((__format__ (__printf__, 1, 0))) _GL_ARG_NONNULL ((1));
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620 # endif
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621 #elif @GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
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622 # define vprintf rpl_vprintf
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623 extern int vprintf (const char *format, va_list args)
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624 __attribute__ ((__format__ (__printf__, 1, 0))) _GL_ARG_NONNULL ((1));
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625 #elif defined GNULIB_POSIXCHECK
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626 # undef vprintf
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627 /* Assume vprintf is always declared. */
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628 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
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629 "use gnulib module vprintf-posix for portable "
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630 "POSIX compliance");
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631 #endif
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632
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633 #if @GNULIB_VSNPRINTF@
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634 # if @REPLACE_VSNPRINTF@
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635 # define vsnprintf rpl_vsnprintf
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636 # endif
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637 # if @REPLACE_VSNPRINTF@ || !@HAVE_DECL_VSNPRINTF@
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638 extern int vsnprintf (char *str, size_t size, const char *format, va_list args)
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diff changeset
639 __attribute__ ((__format__ (__printf__, 3, 0)))
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640 _GL_ARG_NONNULL ((3));
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641 # endif
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642 #elif defined GNULIB_POSIXCHECK
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643 # undef vsnprintf
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644 # if HAVE_RAW_DECL_VSNPRINTF
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645 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
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646 "use gnulib module vsnprintf for portability");
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647 # endif
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648 #endif
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649
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650 #if @GNULIB_VSPRINTF_POSIX@
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651 # if @REPLACE_VSPRINTF@
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652 # define vsprintf rpl_vsprintf
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653 extern int vsprintf (char *str, const char *format, va_list args)
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654 __attribute__ ((__format__ (__printf__, 2, 0)))
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655 _GL_ARG_NONNULL ((1, 2));
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656 # endif
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657 #elif defined GNULIB_POSIXCHECK
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658 # undef vsprintf
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659 /* Assume vsprintf is always declared. */
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660 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
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661 "use gnulib module vsprintf-posix for portable "
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662 "POSIX compliance");
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663 #endif
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664
9262
9857038c7b89 Rename stdio_.h to stdio.in.h.
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665 #ifdef __cplusplus
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666 }
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667 #endif
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668
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669 #endif /* _GL_STDIO_H */
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670 #endif /* _GL_STDIO_H */
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671 #endif