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 #define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  71   _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  72
  73 /* Solaris 10 declares renameat in <unistd.h>, not in <stdio.h>.  */
  74 /* But in any case avoid namespace pollution on glibc systems.  */
  75 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __sun \
  76     && ! defined __GLIBC__
  77 # include <unistd.h>
  78 #endif
  79
  80
  81 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  82
  83 /* The definition of _GL_ARG_NONNULL is copied here.  */
  84
  85 /* The definition of _GL_WARN_ON_USE is copied here.  */
  86
  87 /* Macros for stringification.  */
  88 #define _GL_STDIO_STRINGIZE(token) #token
  89 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
  90
  91
  92 #if @GNULIB_DPRINTF@
  93 # if @REPLACE_DPRINTF@
  94 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  95 #   define dprintf rpl_dprintf
  96 #  endif
  97 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
  98                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
  99                                 _GL_ARG_NONNULL ((2)));
 100 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
 101 # else
 102 #  if !@HAVE_DPRINTF@
 103 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
 104                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 105                                 _GL_ARG_NONNULL ((2)));
 106 #  endif
 107 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
 108 # endif
 109 _GL_CXXALIASWARN (dprintf);
 110 #elif defined GNULIB_POSIXCHECK
 111 # undef dprintf
 112 # if HAVE_RAW_DECL_DPRINTF
 113 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
 114                  "use gnulib module dprintf for portability");
 115 # endif
 116 #endif
 117
 118 #if @GNULIB_FCLOSE@
 119 /* Close STREAM and its underlying file descriptor.  */
 120 # if @REPLACE_FCLOSE@
 121 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 122 #   define fclose rpl_fclose
 123 #  endif
 124 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 125 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 126 # else
 127 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 128 # endif
 129 _GL_CXXALIASWARN (fclose);
 130 #elif defined GNULIB_POSIXCHECK
 131 # undef fclose
 132 /* Assume fclose is always declared.  */
 133 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 134                  "use gnulib module fclose for portable POSIX compliance");
 135 #endif
 136
 137 #if @GNULIB_FFLUSH@
 138 /* Flush all pending data on STREAM according to POSIX rules.  Both
 139    output and seekable input streams are supported.
 140    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 141    that is _not_seekable_ or on an update stream that is _not_seekable_
 142    and in which the most recent operation was input.  Seekability can
 143    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 144 # if @REPLACE_FFLUSH@
 145 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 146 #   define fflush rpl_fflush
 147 #  endif
 148 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 149 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 150 # else
 151 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 152 # endif
 153 _GL_CXXALIASWARN (fflush);
 154 #elif defined GNULIB_POSIXCHECK
 155 # undef fflush
 156 /* Assume fflush is always declared.  */
 157 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 158                  "use gnulib module fflush for portable POSIX compliance");
 159 #endif
 160
 161 /* It is very rare that the developer ever has full control of stdin,
 162    so any use of gets warrants an unconditional warning.  Assume it is
 163    always declared, since it is required by C89.  */
 164 #undef gets
 165 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 166
 167 #if @GNULIB_FOPEN@
 168 # if @REPLACE_FOPEN@
 169 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 170 #   undef fopen
 171 #   define fopen rpl_fopen
 172 #  endif
 173 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
 174                                  _GL_ARG_NONNULL ((1, 2)));
 175 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
 176 # else
 177 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
 178 # endif
 179 _GL_CXXALIASWARN (fopen);
 180 #elif defined GNULIB_POSIXCHECK
 181 # undef fopen
 182 /* Assume fopen is always declared.  */
 183 _GL_WARN_ON_USE (fopen, "fopen on Win32 platforms is not POSIX compatible - "
 184                  "use gnulib module fopen for portability");
 185 #endif
 186
 187 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 188 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 189      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
 190 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 191 #   define fprintf rpl_fprintf
 192 #  endif
 193 #  define GNULIB_overrides_fprintf 1
 194 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 195                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 196                                 _GL_ARG_NONNULL ((1, 2)));
 197 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
 198 # else
 199 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
 200 # endif
 201 _GL_CXXALIASWARN (fprintf);
 202 #endif
 203 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 204 # if !GNULIB_overrides_fprintf
 205 #  undef fprintf
 206 # endif
 207 /* Assume fprintf is always declared.  */
 208 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 209                  "use gnulib module fprintf-posix for portable "
 210                  "POSIX compliance");
 211 #endif
 212
 213 #if @GNULIB_FPURGE@
 214 /* Discard all pending buffered I/O data on STREAM.
 215    STREAM must not be wide-character oriented.
 216    When discarding pending output, the file position is set back to where it
 217    was before the write calls.  When discarding pending input, the file
 218    position is advanced to match the end of the previously read input.
 219    Return 0 if successful.  Upon error, return -1 and set errno.  */
 220 # if @REPLACE_FPURGE@
 221 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 222 #   define fpurge rpl_fpurge
 223 #  endif
 224 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 225 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 226 # else
 227 #  if !@HAVE_DECL_FPURGE@
 228 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 229 #  endif
 230 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 231 # endif
 232 _GL_CXXALIASWARN (fpurge);
 233 #elif defined GNULIB_POSIXCHECK
 234 # undef fpurge
 235 # if HAVE_RAW_DECL_FPURGE
 236 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 237                  "use gnulib module fpurge for portability");
 238 # endif
 239 #endif
 240
 241 #if @GNULIB_FPUTC@
 242 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 243 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 244 #   undef fputc
 245 #   define fputc rpl_fputc
 246 #  endif
 247 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 248 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 249 # else
 250 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 251 # endif
 252 _GL_CXXALIASWARN (fputc);
 253 #endif
 254
 255 #if @GNULIB_FPUTS@
 256 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 257 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 258 #   undef fputs
 259 #   define fputs rpl_fputs
 260 #  endif
 261 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
 262                               _GL_ARG_NONNULL ((1, 2)));
 263 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
 264 # else
 265 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
 266 # endif
 267 _GL_CXXALIASWARN (fputs);
 268 #endif
 269
 270 #if @GNULIB_FREOPEN@
 271 # if @REPLACE_FREOPEN@
 272 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 273 #   undef freopen
 274 #   define freopen rpl_freopen
 275 #  endif
 276 _GL_FUNCDECL_RPL (freopen, FILE *,
 277                   (const char *filename, const char *mode, FILE *stream)
 278                   _GL_ARG_NONNULL ((2, 3)));
 279 _GL_CXXALIAS_RPL (freopen, FILE *,
 280                   (const char *filename, const char *mode, FILE *stream));
 281 # else
 282 _GL_CXXALIAS_SYS (freopen, FILE *,
 283                   (const char *filename, const char *mode, FILE *stream));
 284 # endif
 285 _GL_CXXALIASWARN (freopen);
 286 #elif defined GNULIB_POSIXCHECK
 287 # undef freopen
 288 /* Assume freopen is always declared.  */
 289 _GL_WARN_ON_USE (freopen,
 290                  "freopen on Win32 platforms is not POSIX compatible - "
 291                  "use gnulib module freopen for portability");
 292 #endif
 293
 294
 295 /* Set up the following warnings, based on which modules are in use.
 296    GNU Coding Standards discourage the use of fseek, since it imposes
 297    an arbitrary limitation on some 32-bit hosts.  Remember that the
 298    fseek module depends on the fseeko module, so we only have three
 299    cases to consider:
 300
 301    1. The developer is not using either module.  Issue a warning under
 302    GNULIB_POSIXCHECK for both functions, to remind them that both
 303    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 304    impact on this warning.
 305
 306    2. The developer is using both modules.  They may be unaware of the
 307    arbitrary limitations of fseek, so issue a warning under
 308    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 309    modules intentionally, so the developer can define
 310    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 311    is safe, to silence the warning.
 312
 313    3. The developer is using the fseeko module, but not fseek.  Gnulib
 314    guarantees that fseek will still work around platform bugs in that
 315    case, but we presume that the developer is aware of the pitfalls of
 316    fseek and was trying to avoid it, so issue a warning even when
 317    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 318    defined to silence the warning in particular compilation units.
 319    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 320    fseek gets defined as a macro, it is recommended that the developer
 321    uses the fseek module, even if he is not calling the fseek function.
 322
 323    Most gnulib clients that perform stream operations should fall into
 324    category 3.  */
 325
 326 #if @GNULIB_FSEEK@
 327 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 328 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 329 #  undef fseek
 330 # endif
 331 # if @REPLACE_FSEEK@
 332 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 333 #   undef fseek
 334 #   define fseek rpl_fseek
 335 #  endif
 336 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 337                               _GL_ARG_NONNULL ((1)));
 338 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 339 # else
 340 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 341 # endif
 342 _GL_CXXALIASWARN (fseek);
 343 #endif
 344
 345 #if @GNULIB_FSEEKO@
 346 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 347 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 348 #  undef fseek
 349 # endif
 350 # if @REPLACE_FSEEKO@
 351 /* Provide an fseeko function that is aware of a preceding fflush(), and which
 352    detects pipes.  */
 353 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 354 #   undef fseeko
 355 #   define fseeko rpl_fseeko
 356 #  endif
 357 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 358                                _GL_ARG_NONNULL ((1)));
 359 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 360 # else
 361 #  if ! @HAVE_DECL_FSEEKO@
 362 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
 363                                _GL_ARG_NONNULL ((1)));
 364 #  endif
 365 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 366 # endif
 367 _GL_CXXALIASWARN (fseeko);
 368 # if (@REPLACE_FSEEKO@ || !@HAVE_FSEEKO@) && !@GNULIB_FSEEK@
 369    /* Provide an fseek function that is consistent with fseeko.  */
 370    /* In order to avoid that fseek gets defined as a macro here, the
 371       developer can request the 'fseek' module.  */
 372 #  if !GNULIB_defined_fseek_function
 373 #   undef fseek
 374 #   define fseek rpl_fseek
 375 static inline int _GL_ARG_NONNULL ((1))
 376 rpl_fseek (FILE *fp, long offset, int whence)
 377 {
 378 #   if @REPLACE_FSEEKO@
 379   return rpl_fseeko (fp, offset, whence);
 380 #   else
 381   return fseeko (fp, offset, whence);
 382 #   endif
 383 }
 384 #   define GNULIB_defined_fseek_function 1
 385 #  endif
 386 # endif
 387 #elif defined GNULIB_POSIXCHECK
 388 # define _GL_FSEEK_WARN /* Category 1, above.  */
 389 # undef fseek
 390 # undef fseeko
 391 # if HAVE_RAW_DECL_FSEEKO
 392 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 393                  "use gnulib module fseeko for portability");
 394 # endif
 395 #endif
 396
 397 #ifdef _GL_FSEEK_WARN
 398 # undef _GL_FSEEK_WARN
 399 /* Here, either fseek is undefined (but C89 guarantees that it is
 400    declared), or it is defined as rpl_fseek (declared above).  */
 401 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 402                  "on 32-bit platforms - "
 403                  "use fseeko function for handling of large files");
 404 #endif
 405
 406
 407 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 408
 409 #if @GNULIB_FTELL@
 410 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 411 #  define _GL_FTELL_WARN /* Category 2, above.  */
 412 #  undef ftell
 413 # endif
 414 # if @REPLACE_FTELL@
 415 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 416 #   undef ftell
 417 #   define ftell rpl_ftell
 418 #  endif
 419 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 420 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 421 # else
 422 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 423 # endif
 424 _GL_CXXALIASWARN (ftell);
 425 #endif
 426
 427 #if @GNULIB_FTELLO@
 428 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 429 #  define _GL_FTELL_WARN /* Category 3, above.  */
 430 #  undef ftell
 431 # endif
 432 # if @REPLACE_FTELLO@
 433 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 434 #   undef ftello
 435 #   define ftello rpl_ftello
 436 #  endif
 437 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 438 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 439 # else
 440 #  if ! @HAVE_DECL_FTELLO@
 441 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 442 #  endif
 443 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 444 # endif
 445 _GL_CXXALIASWARN (ftello);
 446 # if (@REPLACE_FTELLO@ || !@HAVE_FTELLO@) && !@GNULIB_FTELL@
 447    /* Provide an ftell function that is consistent with ftello.  */
 448    /* In order to avoid that ftell gets defined as a macro here, the
 449       developer can request the 'ftell' module.  */
 450 #  if !GNULIB_defined_ftell_function
 451 #   undef ftell
 452 #   define ftell rpl_ftell
 453 static inline long _GL_ARG_NONNULL ((1))
 454 rpl_ftell (FILE *f)
 455 {
 456 #   if @REPLACE_FTELLO@
 457   return rpl_ftello (f);
 458 #   else
 459   return ftello (f);
 460 #   endif
 461 }
 462 #   define GNULIB_defined_ftell_function 1
 463 #  endif
 464 # endif
 465 #elif defined GNULIB_POSIXCHECK
 466 # define _GL_FTELL_WARN /* Category 1, above.  */
 467 # undef ftell
 468 # undef ftello
 469 # if HAVE_RAW_DECL_FTELLO
 470 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 471                  "use gnulib module ftello for portability");
 472 # endif
 473 #endif
 474
 475 #ifdef _GL_FTELL_WARN
 476 # undef _GL_FTELL_WARN
 477 /* Here, either ftell is undefined (but C89 guarantees that it is
 478    declared), or it is defined as rpl_ftell (declared above).  */
 479 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 480                  "on 32-bit platforms - "
 481                  "use ftello function for handling of large files");
 482 #endif
 483
 484
 485 #if @GNULIB_FWRITE@
 486 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 487 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 488 #   undef fwrite
 489 #   define fwrite rpl_fwrite
 490 #  endif
 491 _GL_FUNCDECL_RPL (fwrite, size_t,
 492                   (const void *ptr, size_t s, size_t n, FILE *stream)
 493                   _GL_ARG_NONNULL ((1, 4)));
 494 _GL_CXXALIAS_RPL (fwrite, size_t,
 495                   (const void *ptr, size_t s, size_t n, FILE *stream));
 496 # else
 497 _GL_CXXALIAS_SYS (fwrite, size_t,
 498                   (const void *ptr, size_t s, size_t n, FILE *stream));
 499
 500 /* Work around glibc bug 11959
 501    <http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
 502    which sometimes causes an unwanted diagnostic for fwrite calls.
 503    This affects only function declaration attributes, so it's not
 504    needed for C++.  */
 505 #  if !defined __cplusplus && 0 < __USE_FORTIFY_LEVEL
 506 static inline size_t _GL_ARG_NONNULL ((1, 4))
 507 rpl_fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
 508 {
 509   size_t r = fwrite (ptr, s, n, stream);
 510   (void) r;
 511   return r;
 512 }
 513 #   undef fwrite
 514 #   define fwrite rpl_fwrite
 515 #  endif
 516 # endif
 517 _GL_CXXALIASWARN (fwrite);
 518 #endif
 519
 520 #if @GNULIB_GETDELIM@
 521 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 522    STREAM, store it in *LINEPTR (and NUL-terminate it).
 523    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 524    bytes of space.  It is realloc'd as necessary.
 525    Return the number of bytes read and stored at *LINEPTR (not including the
 526    NUL terminator), or -1 on error or EOF.  */
 527 # if @REPLACE_GETDELIM@
 528 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 529 #   undef getdelim
 530 #   define getdelim rpl_getdelim
 531 #  endif
 532 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 533                   (char **lineptr, size_t *linesize, int delimiter,
 534                    FILE *stream)
 535                   _GL_ARG_NONNULL ((1, 2, 4)));
 536 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 537                   (char **lineptr, size_t *linesize, int delimiter,
 538                    FILE *stream));
 539 # else
 540 #  if !@HAVE_DECL_GETDELIM@
 541 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 542                   (char **lineptr, size_t *linesize, int delimiter,
 543                    FILE *stream)
 544                   _GL_ARG_NONNULL ((1, 2, 4)));
 545 #  endif
 546 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 547                   (char **lineptr, size_t *linesize, int delimiter,
 548                    FILE *stream));
 549 # endif
 550 _GL_CXXALIASWARN (getdelim);
 551 #elif defined GNULIB_POSIXCHECK
 552 # undef getdelim
 553 # if HAVE_RAW_DECL_GETDELIM
 554 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 555                  "use gnulib module getdelim for portability");
 556 # endif
 557 #endif
 558
 559 #if @GNULIB_GETLINE@
 560 /* Read a line, up to (and including) the next newline, from STREAM, store it
 561    in *LINEPTR (and NUL-terminate it).
 562    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 563    bytes of space.  It is realloc'd as necessary.
 564    Return the number of bytes read and stored at *LINEPTR (not including the
 565    NUL terminator), or -1 on error or EOF.  */
 566 # if @REPLACE_GETLINE@
 567 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 568 #   undef getline
 569 #   define getline rpl_getline
 570 #  endif
 571 _GL_FUNCDECL_RPL (getline, ssize_t,
 572                   (char **lineptr, size_t *linesize, FILE *stream)
 573                   _GL_ARG_NONNULL ((1, 2, 3)));
 574 _GL_CXXALIAS_RPL (getline, ssize_t,
 575                   (char **lineptr, size_t *linesize, FILE *stream));
 576 # else
 577 #  if !@HAVE_DECL_GETLINE@
 578 _GL_FUNCDECL_SYS (getline, ssize_t,
 579                   (char **lineptr, size_t *linesize, FILE *stream)
 580                   _GL_ARG_NONNULL ((1, 2, 3)));
 581 #  endif
 582 _GL_CXXALIAS_SYS (getline, ssize_t,
 583                   (char **lineptr, size_t *linesize, FILE *stream));
 584 # endif
 585 # if @HAVE_DECL_GETLINE@
 586 _GL_CXXALIASWARN (getline);
 587 # endif
 588 #elif defined GNULIB_POSIXCHECK
 589 # undef getline
 590 # if HAVE_RAW_DECL_GETLINE
 591 _GL_WARN_ON_USE (getline, "getline is unportable - "
 592                  "use gnulib module getline for portability");
 593 # endif
 594 #endif
 595
 596 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 597 struct obstack;
 598 /* Grow an obstack with formatted output.  Return the number of
 599    bytes added to OBS.  No trailing nul byte is added, and the
 600    object should be closed with obstack_finish before use.  Upon
 601    memory allocation error, call obstack_alloc_failed_handler.  Upon
 602    other error, return -1.  */
 603 # if @REPLACE_OBSTACK_PRINTF@
 604 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 605 #   define obstack_printf rpl_obstack_printf
 606 #  endif
 607 _GL_FUNCDECL_RPL (obstack_printf, int,
 608                   (struct obstack *obs, const char *format, ...)
 609                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 610                   _GL_ARG_NONNULL ((1, 2)));
 611 _GL_CXXALIAS_RPL (obstack_printf, int,
 612                   (struct obstack *obs, const char *format, ...));
 613 # else
 614 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 615 _GL_FUNCDECL_SYS (obstack_printf, int,
 616                   (struct obstack *obs, const char *format, ...)
 617                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 618                   _GL_ARG_NONNULL ((1, 2)));
 619 #  endif
 620 _GL_CXXALIAS_SYS (obstack_printf, int,
 621                   (struct obstack *obs, const char *format, ...));
 622 # endif
 623 _GL_CXXALIASWARN (obstack_printf);
 624 # if @REPLACE_OBSTACK_PRINTF@
 625 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 626 #   define obstack_vprintf rpl_obstack_vprintf
 627 #  endif
 628 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 629                   (struct obstack *obs, const char *format, va_list args)
 630                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 631                   _GL_ARG_NONNULL ((1, 2)));
 632 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 633                   (struct obstack *obs, const char *format, va_list args));
 634 # else
 635 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 636 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 637                   (struct obstack *obs, const char *format, va_list args)
 638                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 639                   _GL_ARG_NONNULL ((1, 2)));
 640 #  endif
 641 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 642                   (struct obstack *obs, const char *format, va_list args));
 643 # endif
 644 _GL_CXXALIASWARN (obstack_vprintf);
 645 #endif
 646
 647 #if @GNULIB_PERROR@
 648 /* Print a message to standard error, describing the value of ERRNO,
 649    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 650    and terminated with a newline.  */
 651 # if @REPLACE_PERROR@
 652 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 653 #   define perror rpl_perror
 654 #  endif
 655 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 656 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 657 # else
 658 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 659 # endif
 660 _GL_CXXALIASWARN (perror);
 661 #elif defined GNULIB_POSIXCHECK
 662 # undef perror
 663 /* Assume perror is always declared.  */
 664 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
 665                  "use gnulib module perror for portability");
 666 #endif
 667
 668 #if @GNULIB_POPEN@
 669 # if @REPLACE_POPEN@
 670 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 671 #   undef popen
 672 #   define popen rpl_popen
 673 #  endif
 674 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
 675                                  _GL_ARG_NONNULL ((1, 2)));
 676 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 677 # else
 678 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 679 # endif
 680 _GL_CXXALIASWARN (popen);
 681 #elif defined GNULIB_POSIXCHECK
 682 # undef popen
 683 # if HAVE_RAW_DECL_POPEN
 684 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
 685                  "use gnulib module popen or pipe for more portability");
 686 # endif
 687 #endif
 688
 689 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
 690 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
 691      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
 692 #  if defined __GNUC__
 693 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 694 /* Don't break __attribute__((format(printf,M,N))).  */
 695 #    define printf __printf__
 696 #   endif
 697 _GL_FUNCDECL_RPL_1 (__printf__, int,
 698                     (const char *format, ...)
 699                     __asm__ (@ASM_SYMBOL_PREFIX@
 700                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 701                     _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 702                     _GL_ARG_NONNULL ((1)));
 703 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
 704 #  else
 705 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 706 #    define printf rpl_printf
 707 #   endif
 708 _GL_FUNCDECL_RPL (printf, int,
 709                   (const char *format, ...)
 710                   _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 711                   _GL_ARG_NONNULL ((1)));
 712 _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
 713 #  endif
 714 #  define GNULIB_overrides_printf 1
 715 # else
 716 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
 717 # endif
 718 _GL_CXXALIASWARN (printf);
 719 #endif
 720 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 721 # if !GNULIB_overrides_printf
 722 #  undef printf
 723 # endif
 724 /* Assume printf is always declared.  */
 725 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
 726                  "use gnulib module printf-posix for portable "
 727                  "POSIX compliance");
 728 #endif
 729
 730 #if @GNULIB_PUTC@
 731 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 732 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 733 #   undef putc
 734 #   define putc rpl_fputc
 735 #  endif
 736 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 737 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
 738 # else
 739 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
 740 # endif
 741 _GL_CXXALIASWARN (putc);
 742 #endif
 743
 744 #if @GNULIB_PUTCHAR@
 745 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 746 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 747 #   undef putchar
 748 #   define putchar rpl_putchar
 749 #  endif
 750 _GL_FUNCDECL_RPL (putchar, int, (int c));
 751 _GL_CXXALIAS_RPL (putchar, int, (int c));
 752 # else
 753 _GL_CXXALIAS_SYS (putchar, int, (int c));
 754 # endif
 755 _GL_CXXALIASWARN (putchar);
 756 #endif
 757
 758 #if @GNULIB_PUTS@
 759 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 760 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 761 #   undef puts
 762 #   define puts rpl_puts
 763 #  endif
 764 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
 765 _GL_CXXALIAS_RPL (puts, int, (const char *string));
 766 # else
 767 _GL_CXXALIAS_SYS (puts, int, (const char *string));
 768 # endif
 769 _GL_CXXALIASWARN (puts);
 770 #endif
 771
 772 #if @GNULIB_REMOVE@
 773 # if @REPLACE_REMOVE@
 774 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 775 #   undef remove
 776 #   define remove rpl_remove
 777 #  endif
 778 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
 779 _GL_CXXALIAS_RPL (remove, int, (const char *name));
 780 # else
 781 _GL_CXXALIAS_SYS (remove, int, (const char *name));
 782 # endif
 783 _GL_CXXALIASWARN (remove);
 784 #elif defined GNULIB_POSIXCHECK
 785 # undef remove
 786 /* Assume remove is always declared.  */
 787 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
 788                  "use gnulib module remove for more portability");
 789 #endif
 790
 791 #if @GNULIB_RENAME@
 792 # if @REPLACE_RENAME@
 793 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 794 #   undef rename
 795 #   define rename rpl_rename
 796 #  endif
 797 _GL_FUNCDECL_RPL (rename, int,
 798                   (const char *old_filename, const char *new_filename)
 799                   _GL_ARG_NONNULL ((1, 2)));
 800 _GL_CXXALIAS_RPL (rename, int,
 801                   (const char *old_filename, const char *new_filename));
 802 # else
 803 _GL_CXXALIAS_SYS (rename, int,
 804                   (const char *old_filename, const char *new_filename));
 805 # endif
 806 _GL_CXXALIASWARN (rename);
 807 #elif defined GNULIB_POSIXCHECK
 808 # undef rename
 809 /* Assume rename is always declared.  */
 810 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
 811                  "use gnulib module rename for more portability");
 812 #endif
 813
 814 #if @GNULIB_RENAMEAT@
 815 # if @REPLACE_RENAMEAT@
 816 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 817 #   undef renameat
 818 #   define renameat rpl_renameat
 819 #  endif
 820 _GL_FUNCDECL_RPL (renameat, int,
 821                   (int fd1, char const *file1, int fd2, char const *file2)
 822                   _GL_ARG_NONNULL ((2, 4)));
 823 _GL_CXXALIAS_RPL (renameat, int,
 824                   (int fd1, char const *file1, int fd2, char const *file2));
 825 # else
 826 #  if !@HAVE_RENAMEAT@
 827 _GL_FUNCDECL_SYS (renameat, int,
 828                   (int fd1, char const *file1, int fd2, char const *file2)
 829                   _GL_ARG_NONNULL ((2, 4)));
 830 #  endif
 831 _GL_CXXALIAS_SYS (renameat, int,
 832                   (int fd1, char const *file1, int fd2, char const *file2));
 833 # endif
 834 _GL_CXXALIASWARN (renameat);
 835 #elif defined GNULIB_POSIXCHECK
 836 # undef renameat
 837 # if HAVE_RAW_DECL_RENAMEAT
 838 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
 839                  "use gnulib module renameat for portability");
 840 # endif
 841 #endif
 842
 843 #if @GNULIB_SNPRINTF@
 844 # if @REPLACE_SNPRINTF@
 845 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 846 #   define snprintf rpl_snprintf
 847 #  endif
 848 _GL_FUNCDECL_RPL (snprintf, int,
 849                   (char *str, size_t size, const char *format, ...)
 850                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
 851                   _GL_ARG_NONNULL ((3)));
 852 _GL_CXXALIAS_RPL (snprintf, int,
 853                   (char *str, size_t size, const char *format, ...));
 854 # else
 855 #  if !@HAVE_DECL_SNPRINTF@
 856 _GL_FUNCDECL_SYS (snprintf, int,
 857                   (char *str, size_t size, const char *format, ...)
 858                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
 859                   _GL_ARG_NONNULL ((3)));
 860 #  endif
 861 _GL_CXXALIAS_SYS (snprintf, int,
 862                   (char *str, size_t size, const char *format, ...));
 863 # endif
 864 _GL_CXXALIASWARN (snprintf);
 865 #elif defined GNULIB_POSIXCHECK
 866 # undef snprintf
 867 # if HAVE_RAW_DECL_SNPRINTF
 868 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
 869                  "use gnulib module snprintf for portability");
 870 # endif
 871 #endif
 872
 873 /* Some people would argue that sprintf should be handled like gets
 874    (for example, OpenBSD issues a link warning for both functions),
 875    since both can cause security holes due to buffer overruns.
 876    However, we believe that sprintf can be used safely, and is more
 877    efficient than snprintf in those safe cases; and as proof of our
 878    belief, we use sprintf in several gnulib modules.  So this header
 879    intentionally avoids adding a warning to sprintf except when
 880    GNULIB_POSIXCHECK is defined.  */
 881
 882 #if @GNULIB_SPRINTF_POSIX@
 883 # if @REPLACE_SPRINTF@
 884 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 885 #   define sprintf rpl_sprintf
 886 #  endif
 887 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
 888                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 889                                 _GL_ARG_NONNULL ((1, 2)));
 890 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
 891 # else
 892 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
 893 # endif
 894 _GL_CXXALIASWARN (sprintf);
 895 #elif defined GNULIB_POSIXCHECK
 896 # undef sprintf
 897 /* Assume sprintf is always declared.  */
 898 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
 899                  "use gnulib module sprintf-posix for portable "
 900                  "POSIX compliance");
 901 #endif
 902
 903 #if @GNULIB_TMPFILE@
 904 # if @REPLACE_TMPFILE@
 905 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 906 #   define tmpfile rpl_tmpfile
 907 #  endif
 908 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
 909 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
 910 # else
 911 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
 912 # endif
 913 _GL_CXXALIASWARN (tmpfile);
 914 #elif defined GNULIB_POSIXCHECK
 915 # undef tmpfile
 916 # if HAVE_RAW_DECL_TMPFILE
 917 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
 918                  "use gnulib module tmpfile for portability");
 919 # endif
 920 #endif
 921
 922 #if @GNULIB_VASPRINTF@
 923 /* Write formatted output to a string dynamically allocated with malloc().
 924    If the memory allocation succeeds, store the address of the string in
 925    *RESULT and return the number of resulting bytes, excluding the trailing
 926    NUL.  Upon memory allocation error, or some other error, return -1.  */
 927 # if @REPLACE_VASPRINTF@
 928 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 929 #   define asprintf rpl_asprintf
 930 #  endif
 931 _GL_FUNCDECL_RPL (asprintf, int,
 932                   (char **result, const char *format, ...)
 933                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 934                   _GL_ARG_NONNULL ((1, 2)));
 935 _GL_CXXALIAS_RPL (asprintf, int,
 936                   (char **result, const char *format, ...));
 937 # else
 938 #  if !@HAVE_VASPRINTF@
 939 _GL_FUNCDECL_SYS (asprintf, int,
 940                   (char **result, const char *format, ...)
 941                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 942                   _GL_ARG_NONNULL ((1, 2)));
 943 #  endif
 944 _GL_CXXALIAS_SYS (asprintf, int,
 945                   (char **result, const char *format, ...));
 946 # endif
 947 _GL_CXXALIASWARN (asprintf);
 948 # if @REPLACE_VASPRINTF@
 949 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 950 #   define vasprintf rpl_vasprintf
 951 #  endif
 952 _GL_FUNCDECL_RPL (vasprintf, int,
 953                   (char **result, const char *format, va_list args)
 954                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 955                   _GL_ARG_NONNULL ((1, 2)));
 956 _GL_CXXALIAS_RPL (vasprintf, int,
 957                   (char **result, const char *format, va_list args));
 958 # else
 959 #  if !@HAVE_VASPRINTF@
 960 _GL_FUNCDECL_SYS (vasprintf, int,
 961                   (char **result, const char *format, va_list args)
 962                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 963                   _GL_ARG_NONNULL ((1, 2)));
 964 #  endif
 965 _GL_CXXALIAS_SYS (vasprintf, int,
 966                   (char **result, const char *format, va_list args));
 967 # endif
 968 _GL_CXXALIASWARN (vasprintf);
 969 #endif
 970
 971 #if @GNULIB_VDPRINTF@
 972 # if @REPLACE_VDPRINTF@
 973 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 974 #   define vdprintf rpl_vdprintf
 975 #  endif
 976 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
 977                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 978                                  _GL_ARG_NONNULL ((2)));
 979 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
 980 # else
 981 #  if !@HAVE_VDPRINTF@
 982 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
 983                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 984                                  _GL_ARG_NONNULL ((2)));
 985 #  endif
 986 /* Need to cast, because on Solaris, the third parameter will likely be
 987                                                     __va_list args.  */
 988 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
 989                        (int fd, const char *format, va_list args));
 990 # endif
 991 _GL_CXXALIASWARN (vdprintf);
 992 #elif defined GNULIB_POSIXCHECK
 993 # undef vdprintf
 994 # if HAVE_RAW_DECL_VDPRINTF
 995 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
 996                  "use gnulib module vdprintf for portability");
 997 # endif
 998 #endif
 999
1000 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1001 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1002      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
1003 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1004 #   define vfprintf rpl_vfprintf
1005 #  endif
1006 #  define GNULIB_overrides_vfprintf 1
1007 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1008                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1009                                  _GL_ARG_NONNULL ((1, 2)));
1010 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1011 # else
1012 /* Need to cast, because on Solaris, the third parameter is
1013                                                       __va_list args
1014    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1015 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1016                        (FILE *fp, const char *format, va_list args));
1017 # endif
1018 _GL_CXXALIASWARN (vfprintf);
1019 #endif
1020 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1021 # if !GNULIB_overrides_vfprintf
1022 #  undef vfprintf
1023 # endif
1024 /* Assume vfprintf is always declared.  */
1025 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1026                  "use gnulib module vfprintf-posix for portable "
1027                       "POSIX compliance");
1028 #endif
1029
1030 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1031 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1032      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
1033 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1034 #   define vprintf rpl_vprintf
1035 #  endif
1036 #  define GNULIB_overrides_vprintf 1
1037 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1038                                 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1039                                 _GL_ARG_NONNULL ((1)));
1040 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1041 # else
1042 /* Need to cast, because on Solaris, the second parameter is
1043                                                           __va_list args
1044    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1045 _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1046 # endif
1047 _GL_CXXALIASWARN (vprintf);
1048 #endif
1049 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1050 # if !GNULIB_overrides_vprintf
1051 #  undef vprintf
1052 # endif
1053 /* Assume vprintf is always declared.  */
1054 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1055                  "use gnulib module vprintf-posix for portable "
1056                  "POSIX compliance");
1057 #endif
1058
1059 #if @GNULIB_VSNPRINTF@
1060 # if @REPLACE_VSNPRINTF@
1061 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1062 #   define vsnprintf rpl_vsnprintf
1063 #  endif
1064 _GL_FUNCDECL_RPL (vsnprintf, int,
1065                   (char *str, size_t size, const char *format, va_list args)
1066                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1067                   _GL_ARG_NONNULL ((3)));
1068 _GL_CXXALIAS_RPL (vsnprintf, int,
1069                   (char *str, size_t size, const char *format, va_list args));
1070 # else
1071 #  if !@HAVE_DECL_VSNPRINTF@
1072 _GL_FUNCDECL_SYS (vsnprintf, int,
1073                   (char *str, size_t size, const char *format, va_list args)
1074                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1075                   _GL_ARG_NONNULL ((3)));
1076 #  endif
1077 _GL_CXXALIAS_SYS (vsnprintf, int,
1078                   (char *str, size_t size, const char *format, va_list args));
1079 # endif
1080 _GL_CXXALIASWARN (vsnprintf);
1081 #elif defined GNULIB_POSIXCHECK
1082 # undef vsnprintf
1083 # if HAVE_RAW_DECL_VSNPRINTF
1084 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1085                  "use gnulib module vsnprintf for portability");
1086 # endif
1087 #endif
1088
1089 #if @GNULIB_VSPRINTF_POSIX@
1090 # if @REPLACE_VSPRINTF@
1091 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1092 #   define vsprintf rpl_vsprintf
1093 #  endif
1094 _GL_FUNCDECL_RPL (vsprintf, int,
1095                   (char *str, const char *format, va_list args)
1096                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1097                   _GL_ARG_NONNULL ((1, 2)));
1098 _GL_CXXALIAS_RPL (vsprintf, int,
1099                   (char *str, const char *format, va_list args));
1100 # else
1101 /* Need to cast, because on Solaris, the third parameter is
1102                                                        __va_list args
1103    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1104 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1105                        (char *str, const char *format, va_list args));
1106 # endif
1107 _GL_CXXALIASWARN (vsprintf);
1108 #elif defined GNULIB_POSIXCHECK
1109 # undef vsprintf
1110 /* Assume vsprintf is always declared.  */
1111 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1112                  "use gnulib module vsprintf-posix for portable "
1113                       "POSIX compliance");
1114 #endif
1115
1116
1117 #endif /* _GL_STDIO_H */
1118 #endif /* _GL_STDIO_H */
1119 #endif