lib/stdio.in.h

   1 /* A GNU-like <stdio.h>.
   2
   3    Copyright (C) 2004, 2007-2011 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #if __GNUC__ >= 3
  20 @PRAGMA_SYSTEM_HEADER@
  21 #endif
  22 @PRAGMA_COLUMNS@
  23
  24 #if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H
  25 /* Special invocation convention:
  26    - Inside glibc header files.
  27    - On OSF/1 5.1 we have a sequence of nested includes
  28      <stdio.h> -> <getopt.h> -> <ctype.h> -> <sys/localedef.h> ->
  29      <sys/lc_core.h> -> <nl_types.h> -> <mesg.h> -> <stdio.h>.
  30      In this situation, the functions are not yet declared, therefore we cannot
  31      provide the C++ aliases.  */
  32
  33 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  34
  35 #else
  36 /* Normal invocation convention.  */
  37
  38 #ifndef _GL_STDIO_H
  39
  40 #define _GL_ALREADY_INCLUDING_STDIO_H
  41
  42 /* The include_next requires a split double-inclusion guard.  */
  43 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  44
  45 #undef _GL_ALREADY_INCLUDING_STDIO_H
  46
  47 #ifndef _GL_STDIO_H
  48 #define _GL_STDIO_H
  49
  50 /* Get va_list.  Needed on many systems, including glibc 2.8.  */
  51 #include <stdarg.h>
  52
  53 #include <stddef.h>
  54
  55 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8
  56    and eglibc 2.11.2.  */
  57 #include <sys/types.h>
  58
  59 /* The __attribute__ feature is available in gcc versions 2.5 and later.
  60    The __-protected variants of the attributes 'format' and 'printf' are
  61    accepted by gcc versions 2.6.4 (effectively 2.7) and later.
  62    We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
  63    gnulib and libintl do '#define printf __printf__' when they override
  64    the 'printf' function.  */
  65 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
  66 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
  67 #else
  68 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
  69 #endif
  70
  71 /* _GL_ATTRIBUTE_FORMAT_PRINTF
  72    indicates to GCC that the function takes a format string and arguments,
  73    where the format string directives are the ones standardized by ISO C99
  74    and POSIX.  */
  75 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  76 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  77    _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
  78 #else
  79 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  80    _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  81 #endif
  82
  83 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
  84    except that it indicates to GCC that the supported format string directives
  85    are the ones of the system printf(), rather than the ones standardized by
  86    ISO C99 and POSIX.  */
  87 #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
  88   _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  89
  90 /* _GL_ATTRIBUTE_FORMAT_SCANF
  91    indicates to GCC that the function takes a format string and arguments,
  92    where the format string directives are the ones standardized by ISO C99
  93    and POSIX.  */
  94 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  95 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
  96    _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
  97 #else
  98 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
  99    _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 100 #endif
 101
 102 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
 103    except that it indicates to GCC that the supported format string directives
 104    are the ones of the system scanf(), rather than the ones standardized by
 105    ISO C99 and POSIX.  */
 106 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
 107   _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 108
 109 /* Solaris 10 declares renameat in <unistd.h>, not in <stdio.h>.  */
 110 /* But in any case avoid namespace pollution on glibc systems.  */
 111 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __sun \
 112     && ! defined __GLIBC__
 113 # include <unistd.h>
 114 #endif
 115
 116
 117 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 118
 119 /* The definition of _GL_ARG_NONNULL is copied here.  */
 120
 121 /* The definition of _GL_WARN_ON_USE is copied here.  */
 122
 123 /* Macros for stringification.  */
 124 #define _GL_STDIO_STRINGIZE(token) #token
 125 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
 126
 127
 128 #if @GNULIB_DPRINTF@
 129 # if @REPLACE_DPRINTF@
 130 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 131 #   define dprintf rpl_dprintf
 132 #  endif
 133 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
 134                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 135                                 _GL_ARG_NONNULL ((2)));
 136 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
 137 # else
 138 #  if !@HAVE_DPRINTF@
 139 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
 140                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 141                                 _GL_ARG_NONNULL ((2)));
 142 #  endif
 143 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
 144 # endif
 145 _GL_CXXALIASWARN (dprintf);
 146 #elif defined GNULIB_POSIXCHECK
 147 # undef dprintf
 148 # if HAVE_RAW_DECL_DPRINTF
 149 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
 150                  "use gnulib module dprintf for portability");
 151 # endif
 152 #endif
 153
 154 #if @GNULIB_FCLOSE@
 155 /* Close STREAM and its underlying file descriptor.  */
 156 # if @REPLACE_FCLOSE@
 157 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 158 #   define fclose rpl_fclose
 159 #  endif
 160 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 161 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 162 # else
 163 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 164 # endif
 165 _GL_CXXALIASWARN (fclose);
 166 #elif defined GNULIB_POSIXCHECK
 167 # undef fclose
 168 /* Assume fclose is always declared.  */
 169 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 170                  "use gnulib module fclose for portable POSIX compliance");
 171 #endif
 172
 173 #if @GNULIB_FFLUSH@
 174 /* Flush all pending data on STREAM according to POSIX rules.  Both
 175    output and seekable input streams are supported.
 176    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 177    that is _not_seekable_ or on an update stream that is _not_seekable_
 178    and in which the most recent operation was input.  Seekability can
 179    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 180 # if @REPLACE_FFLUSH@
 181 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 182 #   define fflush rpl_fflush
 183 #  endif
 184 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 185 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 186 # else
 187 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 188 # endif
 189 _GL_CXXALIASWARN (fflush);
 190 #elif defined GNULIB_POSIXCHECK
 191 # undef fflush
 192 /* Assume fflush is always declared.  */
 193 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 194                  "use gnulib module fflush for portable POSIX compliance");
 195 #endif
 196
 197 #if @GNULIB_FGETC@
 198 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 199 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 200 #   undef fgetc
 201 #   define fgetc rpl_fgetc
 202 #  endif
 203 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 204 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
 205 # else
 206 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
 207 # endif
 208 _GL_CXXALIASWARN (fgetc);
 209 #endif
 210
 211 #if @GNULIB_FGETS@
 212 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 213 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 214 #   undef fgets
 215 #   define fgets rpl_fgets
 216 #  endif
 217 _GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
 218                                  _GL_ARG_NONNULL ((1, 3)));
 219 _GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
 220 # else
 221 _GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
 222 # endif
 223 _GL_CXXALIASWARN (fgets);
 224 #endif
 225
 226 #if @GNULIB_FOPEN@
 227 # if @REPLACE_FOPEN@
 228 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 229 #   undef fopen
 230 #   define fopen rpl_fopen
 231 #  endif
 232 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
 233                                  _GL_ARG_NONNULL ((1, 2)));
 234 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
 235 # else
 236 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
 237 # endif
 238 _GL_CXXALIASWARN (fopen);
 239 #elif defined GNULIB_POSIXCHECK
 240 # undef fopen
 241 /* Assume fopen is always declared.  */
 242 _GL_WARN_ON_USE (fopen, "fopen on Win32 platforms is not POSIX compatible - "
 243                  "use gnulib module fopen for portability");
 244 #endif
 245
 246 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 247 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 248      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 249 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 250 #   define fprintf rpl_fprintf
 251 #  endif
 252 #  define GNULIB_overrides_fprintf 1
 253 #  if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 254 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 255                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 256                                 _GL_ARG_NONNULL ((1, 2)));
 257 #  else
 258 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 259                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
 260                                 _GL_ARG_NONNULL ((1, 2)));
 261 #  endif
 262 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
 263 # else
 264 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
 265 # endif
 266 _GL_CXXALIASWARN (fprintf);
 267 #endif
 268 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 269 # if !GNULIB_overrides_fprintf
 270 #  undef fprintf
 271 # endif
 272 /* Assume fprintf is always declared.  */
 273 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 274                  "use gnulib module fprintf-posix for portable "
 275                  "POSIX compliance");
 276 #endif
 277
 278 #if @GNULIB_FPURGE@
 279 /* Discard all pending buffered I/O data on STREAM.
 280    STREAM must not be wide-character oriented.
 281    When discarding pending output, the file position is set back to where it
 282    was before the write calls.  When discarding pending input, the file
 283    position is advanced to match the end of the previously read input.
 284    Return 0 if successful.  Upon error, return -1 and set errno.  */
 285 # if @REPLACE_FPURGE@
 286 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 287 #   define fpurge rpl_fpurge
 288 #  endif
 289 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 290 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 291 # else
 292 #  if !@HAVE_DECL_FPURGE@
 293 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 294 #  endif
 295 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 296 # endif
 297 _GL_CXXALIASWARN (fpurge);
 298 #elif defined GNULIB_POSIXCHECK
 299 # undef fpurge
 300 # if HAVE_RAW_DECL_FPURGE
 301 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 302                  "use gnulib module fpurge for portability");
 303 # endif
 304 #endif
 305
 306 #if @GNULIB_FPUTC@
 307 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 308 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 309 #   undef fputc
 310 #   define fputc rpl_fputc
 311 #  endif
 312 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 313 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 314 # else
 315 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 316 # endif
 317 _GL_CXXALIASWARN (fputc);
 318 #endif
 319
 320 #if @GNULIB_FPUTS@
 321 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 322 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 323 #   undef fputs
 324 #   define fputs rpl_fputs
 325 #  endif
 326 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
 327                               _GL_ARG_NONNULL ((1, 2)));
 328 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
 329 # else
 330 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
 331 # endif
 332 _GL_CXXALIASWARN (fputs);
 333 #endif
 334
 335 #if @GNULIB_FREAD@
 336 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 337 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 338 #   undef fread
 339 #   define fread rpl_fread
 340 #  endif
 341 _GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
 342                                  _GL_ARG_NONNULL ((4)));
 343 _GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 344 # else
 345 _GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 346 # endif
 347 _GL_CXXALIASWARN (fread);
 348 #endif
 349
 350 #if @GNULIB_FREOPEN@
 351 # if @REPLACE_FREOPEN@
 352 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 353 #   undef freopen
 354 #   define freopen rpl_freopen
 355 #  endif
 356 _GL_FUNCDECL_RPL (freopen, FILE *,
 357                   (const char *filename, const char *mode, FILE *stream)
 358                   _GL_ARG_NONNULL ((2, 3)));
 359 _GL_CXXALIAS_RPL (freopen, FILE *,
 360                   (const char *filename, const char *mode, FILE *stream));
 361 # else
 362 _GL_CXXALIAS_SYS (freopen, FILE *,
 363                   (const char *filename, const char *mode, FILE *stream));
 364 # endif
 365 _GL_CXXALIASWARN (freopen);
 366 #elif defined GNULIB_POSIXCHECK
 367 # undef freopen
 368 /* Assume freopen is always declared.  */
 369 _GL_WARN_ON_USE (freopen,
 370                  "freopen on Win32 platforms is not POSIX compatible - "
 371                  "use gnulib module freopen for portability");
 372 #endif
 373
 374 #if @GNULIB_FSCANF@
 375 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 376 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 377 #   undef fscanf
 378 #   define fscanf rpl_fscanf
 379 #  endif
 380 _GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
 381                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
 382                                _GL_ARG_NONNULL ((1, 2)));
 383 _GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
 384 # else
 385 _GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
 386 # endif
 387 _GL_CXXALIASWARN (fscanf);
 388 #endif
 389
 390
 391 /* Set up the following warnings, based on which modules are in use.
 392    GNU Coding Standards discourage the use of fseek, since it imposes
 393    an arbitrary limitation on some 32-bit hosts.  Remember that the
 394    fseek module depends on the fseeko module, so we only have three
 395    cases to consider:
 396
 397    1. The developer is not using either module.  Issue a warning under
 398    GNULIB_POSIXCHECK for both functions, to remind them that both
 399    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 400    impact on this warning.
 401
 402    2. The developer is using both modules.  They may be unaware of the
 403    arbitrary limitations of fseek, so issue a warning under
 404    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 405    modules intentionally, so the developer can define
 406    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 407    is safe, to silence the warning.
 408
 409    3. The developer is using the fseeko module, but not fseek.  Gnulib
 410    guarantees that fseek will still work around platform bugs in that
 411    case, but we presume that the developer is aware of the pitfalls of
 412    fseek and was trying to avoid it, so issue a warning even when
 413    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 414    defined to silence the warning in particular compilation units.
 415    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 416    fseek gets defined as a macro, it is recommended that the developer
 417    uses the fseek module, even if he is not calling the fseek function.
 418
 419    Most gnulib clients that perform stream operations should fall into
 420    category 3.  */
 421
 422 #if @GNULIB_FSEEK@
 423 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 424 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 425 #  undef fseek
 426 # endif
 427 # if @REPLACE_FSEEK@
 428 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 429 #   undef fseek
 430 #   define fseek rpl_fseek
 431 #  endif
 432 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 433                               _GL_ARG_NONNULL ((1)));
 434 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 435 # else
 436 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 437 # endif
 438 _GL_CXXALIASWARN (fseek);
 439 #endif
 440
 441 #if @GNULIB_FSEEKO@
 442 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 443 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 444 #  undef fseek
 445 # endif
 446 # if @REPLACE_FSEEKO@
 447 /* Provide an fseeko function that is aware of a preceding fflush(), and which
 448    detects pipes.  */
 449 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 450 #   undef fseeko
 451 #   define fseeko rpl_fseeko
 452 #  endif
 453 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 454                                _GL_ARG_NONNULL ((1)));
 455 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 456 # else
 457 #  if ! @HAVE_DECL_FSEEKO@
 458 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
 459                                _GL_ARG_NONNULL ((1)));
 460 #  endif
 461 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 462 # endif
 463 _GL_CXXALIASWARN (fseeko);
 464 # if (@REPLACE_FSEEKO@ || !@HAVE_FSEEKO@) && !@GNULIB_FSEEK@
 465    /* Provide an fseek function that is consistent with fseeko.  */
 466    /* In order to avoid that fseek gets defined as a macro here, the
 467       developer can request the 'fseek' module.  */
 468 #  if !GNULIB_defined_fseek_function
 469 #   undef fseek
 470 #   define fseek rpl_fseek
 471 static inline int _GL_ARG_NONNULL ((1))
 472 rpl_fseek (FILE *fp, long offset, int whence)
 473 {
 474 #   if @REPLACE_FSEEKO@
 475   return rpl_fseeko (fp, offset, whence);
 476 #   else
 477   return fseeko (fp, offset, whence);
 478 #   endif
 479 }
 480 #   define GNULIB_defined_fseek_function 1
 481 #  endif
 482 # endif
 483 #elif defined GNULIB_POSIXCHECK
 484 # define _GL_FSEEK_WARN /* Category 1, above.  */
 485 # undef fseek
 486 # undef fseeko
 487 # if HAVE_RAW_DECL_FSEEKO
 488 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 489                  "use gnulib module fseeko for portability");
 490 # endif
 491 #endif
 492
 493 #ifdef _GL_FSEEK_WARN
 494 # undef _GL_FSEEK_WARN
 495 /* Here, either fseek is undefined (but C89 guarantees that it is
 496    declared), or it is defined as rpl_fseek (declared above).  */
 497 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 498                  "on 32-bit platforms - "
 499                  "use fseeko function for handling of large files");
 500 #endif
 501
 502
 503 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 504
 505 #if @GNULIB_FTELL@
 506 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 507 #  define _GL_FTELL_WARN /* Category 2, above.  */
 508 #  undef ftell
 509 # endif
 510 # if @REPLACE_FTELL@
 511 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 512 #   undef ftell
 513 #   define ftell rpl_ftell
 514 #  endif
 515 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 516 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 517 # else
 518 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 519 # endif
 520 _GL_CXXALIASWARN (ftell);
 521 #endif
 522
 523 #if @GNULIB_FTELLO@
 524 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 525 #  define _GL_FTELL_WARN /* Category 3, above.  */
 526 #  undef ftell
 527 # endif
 528 # if @REPLACE_FTELLO@
 529 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 530 #   undef ftello
 531 #   define ftello rpl_ftello
 532 #  endif
 533 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 534 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 535 # else
 536 #  if ! @HAVE_DECL_FTELLO@
 537 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 538 #  endif
 539 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 540 # endif
 541 _GL_CXXALIASWARN (ftello);
 542 # if (@REPLACE_FTELLO@ || !@HAVE_FTELLO@) && !@GNULIB_FTELL@
 543    /* Provide an ftell function that is consistent with ftello.  */
 544    /* In order to avoid that ftell gets defined as a macro here, the
 545       developer can request the 'ftell' module.  */
 546 #  if !GNULIB_defined_ftell_function
 547 #   undef ftell
 548 #   define ftell rpl_ftell
 549 static inline long _GL_ARG_NONNULL ((1))
 550 rpl_ftell (FILE *f)
 551 {
 552 #   if @REPLACE_FTELLO@
 553   return rpl_ftello (f);
 554 #   else
 555   return ftello (f);
 556 #   endif
 557 }
 558 #   define GNULIB_defined_ftell_function 1
 559 #  endif
 560 # endif
 561 #elif defined GNULIB_POSIXCHECK
 562 # define _GL_FTELL_WARN /* Category 1, above.  */
 563 # undef ftell
 564 # undef ftello
 565 # if HAVE_RAW_DECL_FTELLO
 566 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 567                  "use gnulib module ftello for portability");
 568 # endif
 569 #endif
 570
 571 #ifdef _GL_FTELL_WARN
 572 # undef _GL_FTELL_WARN
 573 /* Here, either ftell is undefined (but C89 guarantees that it is
 574    declared), or it is defined as rpl_ftell (declared above).  */
 575 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 576                  "on 32-bit platforms - "
 577                  "use ftello function for handling of large files");
 578 #endif
 579
 580
 581 #if @GNULIB_FWRITE@
 582 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 583 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 584 #   undef fwrite
 585 #   define fwrite rpl_fwrite
 586 #  endif
 587 _GL_FUNCDECL_RPL (fwrite, size_t,
 588                   (const void *ptr, size_t s, size_t n, FILE *stream)
 589                   _GL_ARG_NONNULL ((1, 4)));
 590 _GL_CXXALIAS_RPL (fwrite, size_t,
 591                   (const void *ptr, size_t s, size_t n, FILE *stream));
 592 # else
 593 _GL_CXXALIAS_SYS (fwrite, size_t,
 594                   (const void *ptr, size_t s, size_t n, FILE *stream));
 595
 596 /* Work around glibc bug 11959
 597    <http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
 598    which sometimes causes an unwanted diagnostic for fwrite calls.
 599    This affects only function declaration attributes, so it's not
 600    needed for C++.  */
 601 #  if !defined __cplusplus && 0 < __USE_FORTIFY_LEVEL
 602 static inline size_t _GL_ARG_NONNULL ((1, 4))
 603 rpl_fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
 604 {
 605   size_t r = fwrite (ptr, s, n, stream);
 606   (void) r;
 607   return r;
 608 }
 609 #   undef fwrite
 610 #   define fwrite rpl_fwrite
 611 #  endif
 612 # endif
 613 _GL_CXXALIASWARN (fwrite);
 614 #endif
 615
 616 #if @GNULIB_GETC@
 617 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 618 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 619 #   undef getc
 620 #   define getc rpl_fgetc
 621 #  endif
 622 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 623 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
 624 # else
 625 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
 626 # endif
 627 _GL_CXXALIASWARN (getc);
 628 #endif
 629
 630 #if @GNULIB_GETCHAR@
 631 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 632 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 633 #   undef getchar
 634 #   define getchar rpl_getchar
 635 #  endif
 636 _GL_FUNCDECL_RPL (getchar, int, (void));
 637 _GL_CXXALIAS_RPL (getchar, int, (void));
 638 # else
 639 _GL_CXXALIAS_SYS (getchar, int, (void));
 640 # endif
 641 _GL_CXXALIASWARN (getchar);
 642 #endif
 643
 644 #if @GNULIB_GETDELIM@
 645 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 646    STREAM, store it in *LINEPTR (and NUL-terminate it).
 647    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 648    bytes of space.  It is realloc'd as necessary.
 649    Return the number of bytes read and stored at *LINEPTR (not including the
 650    NUL terminator), or -1 on error or EOF.  */
 651 # if @REPLACE_GETDELIM@
 652 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 653 #   undef getdelim
 654 #   define getdelim rpl_getdelim
 655 #  endif
 656 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 657                   (char **lineptr, size_t *linesize, int delimiter,
 658                    FILE *stream)
 659                   _GL_ARG_NONNULL ((1, 2, 4)));
 660 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 661                   (char **lineptr, size_t *linesize, int delimiter,
 662                    FILE *stream));
 663 # else
 664 #  if !@HAVE_DECL_GETDELIM@
 665 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 666                   (char **lineptr, size_t *linesize, int delimiter,
 667                    FILE *stream)
 668                   _GL_ARG_NONNULL ((1, 2, 4)));
 669 #  endif
 670 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 671                   (char **lineptr, size_t *linesize, int delimiter,
 672                    FILE *stream));
 673 # endif
 674 _GL_CXXALIASWARN (getdelim);
 675 #elif defined GNULIB_POSIXCHECK
 676 # undef getdelim
 677 # if HAVE_RAW_DECL_GETDELIM
 678 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 679                  "use gnulib module getdelim for portability");
 680 # endif
 681 #endif
 682
 683 #if @GNULIB_GETLINE@
 684 /* Read a line, up to (and including) the next newline, from STREAM, store it
 685    in *LINEPTR (and NUL-terminate it).
 686    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 687    bytes of space.  It is realloc'd as necessary.
 688    Return the number of bytes read and stored at *LINEPTR (not including the
 689    NUL terminator), or -1 on error or EOF.  */
 690 # if @REPLACE_GETLINE@
 691 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 692 #   undef getline
 693 #   define getline rpl_getline
 694 #  endif
 695 _GL_FUNCDECL_RPL (getline, ssize_t,
 696                   (char **lineptr, size_t *linesize, FILE *stream)
 697                   _GL_ARG_NONNULL ((1, 2, 3)));
 698 _GL_CXXALIAS_RPL (getline, ssize_t,
 699                   (char **lineptr, size_t *linesize, FILE *stream));
 700 # else
 701 #  if !@HAVE_DECL_GETLINE@
 702 _GL_FUNCDECL_SYS (getline, ssize_t,
 703                   (char **lineptr, size_t *linesize, FILE *stream)
 704                   _GL_ARG_NONNULL ((1, 2, 3)));
 705 #  endif
 706 _GL_CXXALIAS_SYS (getline, ssize_t,
 707                   (char **lineptr, size_t *linesize, FILE *stream));
 708 # endif
 709 # if @HAVE_DECL_GETLINE@
 710 _GL_CXXALIASWARN (getline);
 711 # endif
 712 #elif defined GNULIB_POSIXCHECK
 713 # undef getline
 714 # if HAVE_RAW_DECL_GETLINE
 715 _GL_WARN_ON_USE (getline, "getline is unportable - "
 716                  "use gnulib module getline for portability");
 717 # endif
 718 #endif
 719
 720 #if @GNULIB_GETS@
 721 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 722 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 723 #   undef gets
 724 #   define gets rpl_gets
 725 #  endif
 726 _GL_FUNCDECL_RPL (gets, char *, (char *s) _GL_ARG_NONNULL ((1)));
 727 _GL_CXXALIAS_RPL (gets, char *, (char *s));
 728 # else
 729 _GL_CXXALIAS_SYS (gets, char *, (char *s));
 730 #  undef gets
 731 # endif
 732 _GL_CXXALIASWARN (gets);
 733 /* It is very rare that the developer ever has full control of stdin,
 734    so any use of gets warrants an unconditional warning.  Assume it is
 735    always declared, since it is required by C89.  */
 736 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 737 #endif
 738
 739
 740 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 741 struct obstack;
 742 /* Grow an obstack with formatted output.  Return the number of
 743    bytes added to OBS.  No trailing nul byte is added, and the
 744    object should be closed with obstack_finish before use.  Upon
 745    memory allocation error, call obstack_alloc_failed_handler.  Upon
 746    other error, return -1.  */
 747 # if @REPLACE_OBSTACK_PRINTF@
 748 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 749 #   define obstack_printf rpl_obstack_printf
 750 #  endif
 751 _GL_FUNCDECL_RPL (obstack_printf, int,
 752                   (struct obstack *obs, const char *format, ...)
 753                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 754                   _GL_ARG_NONNULL ((1, 2)));
 755 _GL_CXXALIAS_RPL (obstack_printf, int,
 756                   (struct obstack *obs, const char *format, ...));
 757 # else
 758 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 759 _GL_FUNCDECL_SYS (obstack_printf, int,
 760                   (struct obstack *obs, const char *format, ...)
 761                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 762                   _GL_ARG_NONNULL ((1, 2)));
 763 #  endif
 764 _GL_CXXALIAS_SYS (obstack_printf, int,
 765                   (struct obstack *obs, const char *format, ...));
 766 # endif
 767 _GL_CXXALIASWARN (obstack_printf);
 768 # if @REPLACE_OBSTACK_PRINTF@
 769 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 770 #   define obstack_vprintf rpl_obstack_vprintf
 771 #  endif
 772 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 773                   (struct obstack *obs, const char *format, va_list args)
 774                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 775                   _GL_ARG_NONNULL ((1, 2)));
 776 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 777                   (struct obstack *obs, const char *format, va_list args));
 778 # else
 779 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 780 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 781                   (struct obstack *obs, const char *format, va_list args)
 782                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 783                   _GL_ARG_NONNULL ((1, 2)));
 784 #  endif
 785 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 786                   (struct obstack *obs, const char *format, va_list args));
 787 # endif
 788 _GL_CXXALIASWARN (obstack_vprintf);
 789 #endif
 790
 791 #if @GNULIB_PERROR@
 792 /* Print a message to standard error, describing the value of ERRNO,
 793    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 794    and terminated with a newline.  */
 795 # if @REPLACE_PERROR@
 796 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 797 #   define perror rpl_perror
 798 #  endif
 799 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 800 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 801 # else
 802 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 803 # endif
 804 _GL_CXXALIASWARN (perror);
 805 #elif defined GNULIB_POSIXCHECK
 806 # undef perror
 807 /* Assume perror is always declared.  */
 808 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
 809                  "use gnulib module perror for portability");
 810 #endif
 811
 812 #if @GNULIB_POPEN@
 813 # if @REPLACE_POPEN@
 814 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 815 #   undef popen
 816 #   define popen rpl_popen
 817 #  endif
 818 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
 819                                  _GL_ARG_NONNULL ((1, 2)));
 820 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 821 # else
 822 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 823 # endif
 824 _GL_CXXALIASWARN (popen);
 825 #elif defined GNULIB_POSIXCHECK
 826 # undef popen
 827 # if HAVE_RAW_DECL_POPEN
 828 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
 829                  "use gnulib module popen or pipe for more portability");
 830 # endif
 831 #endif
 832
 833 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
 834 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
 835      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 836 #  if defined __GNUC__
 837 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 838 /* Don't break __attribute__((format(printf,M,N))).  */
 839 #    define printf __printf__
 840 #   endif
 841 #   if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 842 _GL_FUNCDECL_RPL_1 (__printf__, int,
 843                     (const char *format, ...)
 844                     __asm__ (@ASM_SYMBOL_PREFIX@
 845                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 846                     _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 847                     _GL_ARG_NONNULL ((1)));
 848 #   else
 849 _GL_FUNCDECL_RPL_1 (__printf__, int,
 850                     (const char *format, ...)
 851                     __asm__ (@ASM_SYMBOL_PREFIX@
 852                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 853                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
 854                     _GL_ARG_NONNULL ((1)));
 855 #   endif
 856 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
 857 #  else
 858 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 859 #    define printf rpl_printf
 860 #   endif
 861 _GL_FUNCDECL_RPL (printf, int,
 862                   (const char *format, ...)
 863                   _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 864                   _GL_ARG_NONNULL ((1)));
 865 _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
 866 #  endif
 867 #  define GNULIB_overrides_printf 1
 868 # else
 869 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
 870 # endif
 871 _GL_CXXALIASWARN (printf);
 872 #endif
 873 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 874 # if !GNULIB_overrides_printf
 875 #  undef printf
 876 # endif
 877 /* Assume printf is always declared.  */
 878 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
 879                  "use gnulib module printf-posix for portable "
 880                  "POSIX compliance");
 881 #endif
 882
 883 #if @GNULIB_PUTC@
 884 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 885 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 886 #   undef putc
 887 #   define putc rpl_fputc
 888 #  endif
 889 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 890 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
 891 # else
 892 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
 893 # endif
 894 _GL_CXXALIASWARN (putc);
 895 #endif
 896
 897 #if @GNULIB_PUTCHAR@
 898 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 899 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 900 #   undef putchar
 901 #   define putchar rpl_putchar
 902 #  endif
 903 _GL_FUNCDECL_RPL (putchar, int, (int c));
 904 _GL_CXXALIAS_RPL (putchar, int, (int c));
 905 # else
 906 _GL_CXXALIAS_SYS (putchar, int, (int c));
 907 # endif
 908 _GL_CXXALIASWARN (putchar);
 909 #endif
 910
 911 #if @GNULIB_PUTS@
 912 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 913 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 914 #   undef puts
 915 #   define puts rpl_puts
 916 #  endif
 917 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
 918 _GL_CXXALIAS_RPL (puts, int, (const char *string));
 919 # else
 920 _GL_CXXALIAS_SYS (puts, int, (const char *string));
 921 # endif
 922 _GL_CXXALIASWARN (puts);
 923 #endif
 924
 925 #if @GNULIB_REMOVE@
 926 # if @REPLACE_REMOVE@
 927 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 928 #   undef remove
 929 #   define remove rpl_remove
 930 #  endif
 931 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
 932 _GL_CXXALIAS_RPL (remove, int, (const char *name));
 933 # else
 934 _GL_CXXALIAS_SYS (remove, int, (const char *name));
 935 # endif
 936 _GL_CXXALIASWARN (remove);
 937 #elif defined GNULIB_POSIXCHECK
 938 # undef remove
 939 /* Assume remove is always declared.  */
 940 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
 941                  "use gnulib module remove for more portability");
 942 #endif
 943
 944 #if @GNULIB_RENAME@
 945 # if @REPLACE_RENAME@
 946 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 947 #   undef rename
 948 #   define rename rpl_rename
 949 #  endif
 950 _GL_FUNCDECL_RPL (rename, int,
 951                   (const char *old_filename, const char *new_filename)
 952                   _GL_ARG_NONNULL ((1, 2)));
 953 _GL_CXXALIAS_RPL (rename, int,
 954                   (const char *old_filename, const char *new_filename));
 955 # else
 956 _GL_CXXALIAS_SYS (rename, int,
 957                   (const char *old_filename, const char *new_filename));
 958 # endif
 959 _GL_CXXALIASWARN (rename);
 960 #elif defined GNULIB_POSIXCHECK
 961 # undef rename
 962 /* Assume rename is always declared.  */
 963 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
 964                  "use gnulib module rename for more portability");
 965 #endif
 966
 967 #if @GNULIB_RENAMEAT@
 968 # if @REPLACE_RENAMEAT@
 969 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 970 #   undef renameat
 971 #   define renameat rpl_renameat
 972 #  endif
 973 _GL_FUNCDECL_RPL (renameat, int,
 974                   (int fd1, char const *file1, int fd2, char const *file2)
 975                   _GL_ARG_NONNULL ((2, 4)));
 976 _GL_CXXALIAS_RPL (renameat, int,
 977                   (int fd1, char const *file1, int fd2, char const *file2));
 978 # else
 979 #  if !@HAVE_RENAMEAT@
 980 _GL_FUNCDECL_SYS (renameat, int,
 981                   (int fd1, char const *file1, int fd2, char const *file2)
 982                   _GL_ARG_NONNULL ((2, 4)));
 983 #  endif
 984 _GL_CXXALIAS_SYS (renameat, int,
 985                   (int fd1, char const *file1, int fd2, char const *file2));
 986 # endif
 987 _GL_CXXALIASWARN (renameat);
 988 #elif defined GNULIB_POSIXCHECK
 989 # undef renameat
 990 # if HAVE_RAW_DECL_RENAMEAT
 991 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
 992                  "use gnulib module renameat for portability");
 993 # endif
 994 #endif
 995
 996 #if @GNULIB_SCANF@
 997 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 998 #  if defined __GNUC__
 999 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1000 #    undef scanf
1001 /* Don't break __attribute__((format(scanf,M,N))).  */
1002 #    define scanf __scanf__
1003 #   endif
1004 _GL_FUNCDECL_RPL_1 (__scanf__, int,
1005                     (const char *format, ...)
1006                     __asm__ (@ASM_SYMBOL_PREFIX@
1007                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1008                     _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1009                     _GL_ARG_NONNULL ((1)));
1010 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
1011 #  else
1012 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1013 #    undef scanf
1014 #    define scanf rpl_scanf
1015 #   endif
1016 _GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
1017                               _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1018                               _GL_ARG_NONNULL ((1)));
1019 _GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
1020 #  endif
1021 # else
1022 _GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
1023 # endif
1024 _GL_CXXALIASWARN (scanf);
1025 #endif
1026
1027 #if @GNULIB_SNPRINTF@
1028 # if @REPLACE_SNPRINTF@
1029 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1030 #   define snprintf rpl_snprintf
1031 #  endif
1032 _GL_FUNCDECL_RPL (snprintf, int,
1033                   (char *str, size_t size, const char *format, ...)
1034                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1035                   _GL_ARG_NONNULL ((3)));
1036 _GL_CXXALIAS_RPL (snprintf, int,
1037                   (char *str, size_t size, const char *format, ...));
1038 # else
1039 #  if !@HAVE_DECL_SNPRINTF@
1040 _GL_FUNCDECL_SYS (snprintf, int,
1041                   (char *str, size_t size, const char *format, ...)
1042                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1043                   _GL_ARG_NONNULL ((3)));
1044 #  endif
1045 _GL_CXXALIAS_SYS (snprintf, int,
1046                   (char *str, size_t size, const char *format, ...));
1047 # endif
1048 _GL_CXXALIASWARN (snprintf);
1049 #elif defined GNULIB_POSIXCHECK
1050 # undef snprintf
1051 # if HAVE_RAW_DECL_SNPRINTF
1052 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1053                  "use gnulib module snprintf for portability");
1054 # endif
1055 #endif
1056
1057 /* Some people would argue that sprintf should be handled like gets
1058    (for example, OpenBSD issues a link warning for both functions),
1059    since both can cause security holes due to buffer overruns.
1060    However, we believe that sprintf can be used safely, and is more
1061    efficient than snprintf in those safe cases; and as proof of our
1062    belief, we use sprintf in several gnulib modules.  So this header
1063    intentionally avoids adding a warning to sprintf except when
1064    GNULIB_POSIXCHECK is defined.  */
1065
1066 #if @GNULIB_SPRINTF_POSIX@
1067 # if @REPLACE_SPRINTF@
1068 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1069 #   define sprintf rpl_sprintf
1070 #  endif
1071 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1072                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1073                                 _GL_ARG_NONNULL ((1, 2)));
1074 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1075 # else
1076 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1077 # endif
1078 _GL_CXXALIASWARN (sprintf);
1079 #elif defined GNULIB_POSIXCHECK
1080 # undef sprintf
1081 /* Assume sprintf is always declared.  */
1082 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1083                  "use gnulib module sprintf-posix for portable "
1084                  "POSIX compliance");
1085 #endif
1086
1087 #if @GNULIB_TMPFILE@
1088 # if @REPLACE_TMPFILE@
1089 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1090 #   define tmpfile rpl_tmpfile
1091 #  endif
1092 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1093 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1094 # else
1095 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1096 # endif
1097 _GL_CXXALIASWARN (tmpfile);
1098 #elif defined GNULIB_POSIXCHECK
1099 # undef tmpfile
1100 # if HAVE_RAW_DECL_TMPFILE
1101 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1102                  "use gnulib module tmpfile for portability");
1103 # endif
1104 #endif
1105
1106 #if @GNULIB_VASPRINTF@
1107 /* Write formatted output to a string dynamically allocated with malloc().
1108    If the memory allocation succeeds, store the address of the string in
1109    *RESULT and return the number of resulting bytes, excluding the trailing
1110    NUL.  Upon memory allocation error, or some other error, return -1.  */
1111 # if @REPLACE_VASPRINTF@
1112 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1113 #   define asprintf rpl_asprintf
1114 #  endif
1115 _GL_FUNCDECL_RPL (asprintf, int,
1116                   (char **result, const char *format, ...)
1117                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1118                   _GL_ARG_NONNULL ((1, 2)));
1119 _GL_CXXALIAS_RPL (asprintf, int,
1120                   (char **result, const char *format, ...));
1121 # else
1122 #  if !@HAVE_VASPRINTF@
1123 _GL_FUNCDECL_SYS (asprintf, int,
1124                   (char **result, const char *format, ...)
1125                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1126                   _GL_ARG_NONNULL ((1, 2)));
1127 #  endif
1128 _GL_CXXALIAS_SYS (asprintf, int,
1129                   (char **result, const char *format, ...));
1130 # endif
1131 _GL_CXXALIASWARN (asprintf);
1132 # if @REPLACE_VASPRINTF@
1133 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1134 #   define vasprintf rpl_vasprintf
1135 #  endif
1136 _GL_FUNCDECL_RPL (vasprintf, int,
1137                   (char **result, const char *format, va_list args)
1138                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1139                   _GL_ARG_NONNULL ((1, 2)));
1140 _GL_CXXALIAS_RPL (vasprintf, int,
1141                   (char **result, const char *format, va_list args));
1142 # else
1143 #  if !@HAVE_VASPRINTF@
1144 _GL_FUNCDECL_SYS (vasprintf, int,
1145                   (char **result, const char *format, va_list args)
1146                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1147                   _GL_ARG_NONNULL ((1, 2)));
1148 #  endif
1149 _GL_CXXALIAS_SYS (vasprintf, int,
1150                   (char **result, const char *format, va_list args));
1151 # endif
1152 _GL_CXXALIASWARN (vasprintf);
1153 #endif
1154
1155 #if @GNULIB_VDPRINTF@
1156 # if @REPLACE_VDPRINTF@
1157 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1158 #   define vdprintf rpl_vdprintf
1159 #  endif
1160 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1161                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1162                                  _GL_ARG_NONNULL ((2)));
1163 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1164 # else
1165 #  if !@HAVE_VDPRINTF@
1166 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1167                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1168                                  _GL_ARG_NONNULL ((2)));
1169 #  endif
1170 /* Need to cast, because on Solaris, the third parameter will likely be
1171                                                     __va_list args.  */
1172 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
1173                        (int fd, const char *format, va_list args));
1174 # endif
1175 _GL_CXXALIASWARN (vdprintf);
1176 #elif defined GNULIB_POSIXCHECK
1177 # undef vdprintf
1178 # if HAVE_RAW_DECL_VDPRINTF
1179 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1180                  "use gnulib module vdprintf for portability");
1181 # endif
1182 #endif
1183
1184 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1185 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1186      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1187 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1188 #   define vfprintf rpl_vfprintf
1189 #  endif
1190 #  define GNULIB_overrides_vfprintf 1
1191 #  if @GNULIB_VFPRINTF_POSIX@
1192 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1193                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1194                                  _GL_ARG_NONNULL ((1, 2)));
1195 #  else
1196 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1197                                  _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1198                                  _GL_ARG_NONNULL ((1, 2)));
1199 #  endif
1200 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1201 # else
1202 /* Need to cast, because on Solaris, the third parameter is
1203                                                       __va_list args
1204    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1205 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1206                        (FILE *fp, const char *format, va_list args));
1207 # endif
1208 _GL_CXXALIASWARN (vfprintf);
1209 #endif
1210 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1211 # if !GNULIB_overrides_vfprintf
1212 #  undef vfprintf
1213 # endif
1214 /* Assume vfprintf is always declared.  */
1215 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1216                  "use gnulib module vfprintf-posix for portable "
1217                       "POSIX compliance");
1218 #endif
1219
1220 #if @GNULIB_VFSCANF@
1221 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1222 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1223 #   undef vfscanf
1224 #   define vfscanf rpl_vfscanf
1225 #  endif
1226 _GL_FUNCDECL_RPL (vfscanf, int,
1227                   (FILE *stream, const char *format, va_list args)
1228                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1229                   _GL_ARG_NONNULL ((1, 2)));
1230 _GL_CXXALIAS_RPL (vfscanf, int,
1231                   (FILE *stream, const char *format, va_list args));
1232 # else
1233 _GL_CXXALIAS_SYS (vfscanf, int,
1234                   (FILE *stream, const char *format, va_list args));
1235 # endif
1236 _GL_CXXALIASWARN (vfscanf);
1237 #endif
1238
1239 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1240 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1241      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1242 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1243 #   define vprintf rpl_vprintf
1244 #  endif
1245 #  define GNULIB_overrides_vprintf 1
1246 #  if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1247 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1248                                 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1249                                 _GL_ARG_NONNULL ((1)));
1250 #  else
1251 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1252                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1253                                 _GL_ARG_NONNULL ((1)));
1254 #  endif
1255 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1256 # else
1257 /* Need to cast, because on Solaris, the second parameter is
1258                                                           __va_list args
1259    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1260 _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1261 # endif
1262 _GL_CXXALIASWARN (vprintf);
1263 #endif
1264 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1265 # if !GNULIB_overrides_vprintf
1266 #  undef vprintf
1267 # endif
1268 /* Assume vprintf is always declared.  */
1269 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1270                  "use gnulib module vprintf-posix for portable "
1271                  "POSIX compliance");
1272 #endif
1273
1274 #if @GNULIB_VSCANF@
1275 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1276 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1277 #   undef vscanf
1278 #   define vscanf rpl_vscanf
1279 #  endif
1280 _GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1281                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1282                                _GL_ARG_NONNULL ((1)));
1283 _GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1284 # else
1285 _GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1286 # endif
1287 _GL_CXXALIASWARN (vscanf);
1288 #endif
1289
1290 #if @GNULIB_VSNPRINTF@
1291 # if @REPLACE_VSNPRINTF@
1292 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1293 #   define vsnprintf rpl_vsnprintf
1294 #  endif
1295 _GL_FUNCDECL_RPL (vsnprintf, int,
1296                   (char *str, size_t size, const char *format, va_list args)
1297                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1298                   _GL_ARG_NONNULL ((3)));
1299 _GL_CXXALIAS_RPL (vsnprintf, int,
1300                   (char *str, size_t size, const char *format, va_list args));
1301 # else
1302 #  if !@HAVE_DECL_VSNPRINTF@
1303 _GL_FUNCDECL_SYS (vsnprintf, int,
1304                   (char *str, size_t size, const char *format, va_list args)
1305                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1306                   _GL_ARG_NONNULL ((3)));
1307 #  endif
1308 _GL_CXXALIAS_SYS (vsnprintf, int,
1309                   (char *str, size_t size, const char *format, va_list args));
1310 # endif
1311 _GL_CXXALIASWARN (vsnprintf);
1312 #elif defined GNULIB_POSIXCHECK
1313 # undef vsnprintf
1314 # if HAVE_RAW_DECL_VSNPRINTF
1315 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1316                  "use gnulib module vsnprintf for portability");
1317 # endif
1318 #endif
1319
1320 #if @GNULIB_VSPRINTF_POSIX@
1321 # if @REPLACE_VSPRINTF@
1322 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1323 #   define vsprintf rpl_vsprintf
1324 #  endif
1325 _GL_FUNCDECL_RPL (vsprintf, int,
1326                   (char *str, const char *format, va_list args)
1327                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1328                   _GL_ARG_NONNULL ((1, 2)));
1329 _GL_CXXALIAS_RPL (vsprintf, int,
1330                   (char *str, const char *format, va_list args));
1331 # else
1332 /* Need to cast, because on Solaris, the third parameter is
1333                                                        __va_list args
1334    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1335 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1336                        (char *str, const char *format, va_list args));
1337 # endif
1338 _GL_CXXALIASWARN (vsprintf);
1339 #elif defined GNULIB_POSIXCHECK
1340 # undef vsprintf
1341 /* Assume vsprintf is always declared.  */
1342 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1343                  "use gnulib module vsprintf-posix for portable "
1344                       "POSIX compliance");
1345 #endif
1346
1347
1348 #endif /* _GL_STDIO_H */
1349 #endif /* _GL_STDIO_H */
1350 #endif