lib/stdio.in.h

   1 /* A GNU-like <stdio.h>.
   2
   3    Copyright (C) 2004, 2007-2010 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 Lesser General Public License as published by
   7    the Free Software Foundation; either version 2, 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 Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser 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
  23 #if defined __need_FILE || defined __need___FILE
  24 /* Special invocation convention inside glibc header files.  */
  25
  26 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  27
  28 #else
  29 /* Normal invocation convention.  */
  30
  31 #ifndef _GL_STDIO_H
  32
  33 /* The include_next requires a split double-inclusion guard.  */
  34 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  35
  36 #ifndef _GL_STDIO_H
  37 #define _GL_STDIO_H
  38
  39 /* Get va_list.  Needed on many systems, including glibc 2.8.  */
  40 #include <stdarg.h>
  41
  42 #include <stddef.h>
  43
  44 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8.  */
  45 #include <sys/types.h>
  46
  47 #ifndef __attribute__
  48 /* The __attribute__ feature is available in gcc versions 2.5 and later.
  49    The __-protected variants of the attributes 'format' and 'printf' are
  50    accepted by gcc versions 2.6.4 (effectively 2.7) and later.
  51    We enable __attribute__ only if these are supported too, because
  52    gnulib and libintl do '#define printf __printf__' when they override
  53    the 'printf' function.  */
  54 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  55 #  define __attribute__(Spec)   /* empty */
  56 # endif
  57 #endif
  58
  59
  60 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  61
  62 /* The definition of _GL_ARG_NONNULL is copied here.  */
  63
  64 /* The definition of _GL_WARN_ON_USE is copied here.  */
  65
  66
  67 #if @GNULIB_DPRINTF@
  68 # if @REPLACE_DPRINTF@
  69 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  70 #   define dprintf rpl_dprintf
  71 #  endif
  72 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
  73                                 __attribute__ ((__format__ (__printf__, 2, 3)))
  74                                 _GL_ARG_NONNULL ((2)));
  75 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
  76 # else
  77 #  if !@HAVE_DPRINTF@
  78 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
  79                                 __attribute__ ((__format__ (__printf__, 2, 3)))
  80                                 _GL_ARG_NONNULL ((2)));
  81 #  endif
  82 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
  83 # endif
  84 _GL_CXXALIASWARN (dprintf);
  85 #elif defined GNULIB_POSIXCHECK
  86 # undef dprintf
  87 # if HAVE_RAW_DECL_DPRINTF
  88 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
  89                  "use gnulib module dprintf for portability");
  90 # endif
  91 #endif
  92
  93 #if @GNULIB_FCLOSE@
  94 /* Close STREAM and its underlying file descriptor.  */
  95 # if @REPLACE_FCLOSE@
  96 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  97 #   define fclose rpl_fclose
  98 #  endif
  99 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 100 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 101 # else
 102 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 103 # endif
 104 _GL_CXXALIASWARN (fclose);
 105 #elif defined GNULIB_POSIXCHECK
 106 # undef fclose
 107 /* Assume fclose is always declared.  */
 108 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 109                  "use gnulib module fclose for portable POSIX compliance");
 110 #endif
 111
 112 #if @GNULIB_FFLUSH@
 113 /* Flush all pending data on STREAM according to POSIX rules.  Both
 114    output and seekable input streams are supported.
 115    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 116    that is _not_seekable_ or on an update stream that is _not_seekable_
 117    and in which the most recent operation was input.  Seekability can
 118    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 119 # if @REPLACE_FFLUSH@
 120 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 121 #   define fflush rpl_fflush
 122 #  endif
 123 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 124 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 125 # else
 126 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 127 # endif
 128 _GL_CXXALIASWARN (fflush);
 129 #elif defined GNULIB_POSIXCHECK
 130 # undef fflush
 131 /* Assume fflush is always declared.  */
 132 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 133                  "use gnulib module fflush for portable POSIX compliance");
 134 #endif
 135
 136 /* It is very rare that the developer ever has full control of stdin,
 137    so any use of gets warrants an unconditional warning.  Assume it is
 138    always declared, since it is required by C89.  */
 139 #undef gets
 140 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 141
 142 #if @GNULIB_FOPEN@
 143 # if @REPLACE_FOPEN@
 144 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 145 #   undef fopen
 146 #   define fopen rpl_fopen
 147 #  endif
 148 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
 149                                  _GL_ARG_NONNULL ((1, 2)));
 150 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
 151 # else
 152 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
 153 # endif
 154 _GL_CXXALIASWARN (fopen);
 155 #elif defined GNULIB_POSIXCHECK
 156 # undef fopen
 157 /* Assume fopen is always declared.  */
 158 _GL_WARN_ON_USE (fopen, "fopen on Win32 platforms is not POSIX compatible - "
 159                  "use gnulib module fopen for portability");
 160 #endif
 161
 162 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 163 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 164      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
 165 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 166 #   define fprintf rpl_fprintf
 167 #  endif
 168 #  define GNULIB_overrides_fprintf 1
 169 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 170                                 __attribute__ ((__format__ (__printf__, 2, 3)))
 171                                 _GL_ARG_NONNULL ((1, 2)));
 172 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
 173 # else
 174 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
 175 # endif
 176 _GL_CXXALIASWARN (fprintf);
 177 #endif
 178 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 179 # if !GNULIB_overrides_fprintf
 180 #  undef fprintf
 181 # endif
 182 /* Assume fprintf is always declared.  */
 183 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 184                  "use gnulib module fprintf-posix for portable "
 185                  "POSIX compliance");
 186 #endif
 187
 188 #if @GNULIB_FPURGE@
 189 /* Discard all pending buffered I/O data on STREAM.
 190    STREAM must not be wide-character oriented.
 191    When discarding pending output, the file position is set back to where it
 192    was before the write calls.  When discarding pending input, the file
 193    position is advanced to match the end of the previously read input.
 194    Return 0 if successful.  Upon error, return -1 and set errno.  */
 195 # if @REPLACE_FPURGE@
 196 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 197 #   define fpurge rpl_fpurge
 198 #  endif
 199 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 200 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 201 # else
 202 #  if !@HAVE_DECL_FPURGE@
 203 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 204 #  endif
 205 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 206 # endif
 207 _GL_CXXALIASWARN (fpurge);
 208 #elif defined GNULIB_POSIXCHECK
 209 # undef fpurge
 210 # if HAVE_RAW_DECL_FPURGE
 211 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 212                  "use gnulib module fpurge for portability");
 213 # endif
 214 #endif
 215
 216 #if @GNULIB_FPUTC@
 217 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 218 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 219 #   undef fputc
 220 #   define fputc rpl_fputc
 221 #  endif
 222 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 223 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 224 # else
 225 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 226 # endif
 227 _GL_CXXALIASWARN (fputc);
 228 #endif
 229
 230 #if @GNULIB_FPUTS@
 231 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 232 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 233 #   undef fputs
 234 #   define fputs rpl_fputs
 235 #  endif
 236 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
 237                               _GL_ARG_NONNULL ((1, 2)));
 238 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
 239 # else
 240 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
 241 # endif
 242 _GL_CXXALIASWARN (fputs);
 243 #endif
 244
 245 #if @GNULIB_FREOPEN@
 246 # if @REPLACE_FREOPEN@
 247 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 248 #   undef freopen
 249 #   define freopen rpl_freopen
 250 #  endif
 251 _GL_FUNCDECL_RPL (freopen, FILE *,
 252                   (const char *filename, const char *mode, FILE *stream)
 253                   _GL_ARG_NONNULL ((2, 3)));
 254 _GL_CXXALIAS_RPL (freopen, FILE *,
 255                   (const char *filename, const char *mode, FILE *stream));
 256 # else
 257 _GL_CXXALIAS_SYS (freopen, FILE *,
 258                   (const char *filename, const char *mode, FILE *stream));
 259 # endif
 260 _GL_CXXALIASWARN (freopen);
 261 #elif defined GNULIB_POSIXCHECK
 262 # undef freopen
 263 /* Assume freopen is always declared.  */
 264 _GL_WARN_ON_USE (freopen, "freopen on Win32 platforms is not POSIX compatible - "
 265                  "use gnulib module freopen for portability");
 266 #endif
 267
 268
 269 /* Set up the following warnings, based on which modules are in use.
 270    GNU Coding Standards discourage the use of fseek, since it imposes
 271    an arbitrary limitation on some 32-bit hosts.  Remember that the
 272    fseek module depends on the fseeko module, so we only have three
 273    cases to consider:
 274
 275    1. The developer is not using either module.  Issue a warning under
 276    GNULIB_POSIXCHECK for both functions, to remind them that both
 277    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 278    impact on this warning.
 279
 280    2. The developer is using both modules.  They may be unaware of the
 281    arbitrary limitations of fseek, so issue a warning under
 282    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 283    modules intentionally, so the developer can define
 284    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 285    is safe, to silence the warning.
 286
 287    3. The developer is using the fseeko module, but not fseek.  Gnulib
 288    guarantees that fseek will still work around platform bugs in that
 289    case, but we presume that the developer is aware of the pitfalls of
 290    fseek and was trying to avoid it, so issue a warning even when
 291    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 292    defined to silence the warning in particular compilation units.
 293    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 294    fseek gets defined as a macro, it is recommended that the developer
 295    uses the fseek module, even if he is not calling the fseek function.
 296
 297    Most gnulib clients that perform stream operations should fall into
 298    category 3.  */
 299
 300 #if @GNULIB_FSEEK@
 301 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 302 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 303 #  undef fseek
 304 # endif
 305 # if @REPLACE_FSEEK@
 306 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 307 #   undef fseek
 308 #   define fseek rpl_fseek
 309 #  endif
 310 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 311                               _GL_ARG_NONNULL ((1)));
 312 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 313 # else
 314 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 315 # endif
 316 _GL_CXXALIASWARN (fseek);
 317 #endif
 318
 319 #if @GNULIB_FSEEKO@
 320 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 321 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 322 #  undef fseek
 323 # endif
 324 # if @REPLACE_FSEEKO@
 325 /* Provide fseek, fseeko functions that are aware of a preceding
 326    fflush(), and which detect pipes.  */
 327 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 328 #   undef fseeko
 329 #   define fseeko rpl_fseeko
 330 #  endif
 331 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 332                                _GL_ARG_NONNULL ((1)));
 333 #  if !@GNULIB_FSEEK@
 334     /* In order to avoid that fseek gets defined as a macro here, the
 335        developer can request the 'fseek' module.  */
 336 #   undef fseek
 337 #   define fseek rpl_fseek
 338 static inline int _GL_ARG_NONNULL ((1))
 339 rpl_fseek (FILE *fp, long offset, int whence)
 340 {
 341   return fseeko (fp, offset, whence);
 342 }
 343 #  endif
 344 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 345 # else
 346 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 347 # endif
 348 _GL_CXXALIASWARN (fseeko);
 349 #elif defined GNULIB_POSIXCHECK
 350 # define _GL_FSEEK_WARN /* Category 1, above.  */
 351 # undef fseek
 352 # undef fseeko
 353 # if HAVE_RAW_DECL_FSEEKO
 354 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 355                  "use gnulib module fseeko for portability");
 356 # endif
 357 #endif
 358
 359 #ifdef _GL_FSEEK_WARN
 360 # undef _GL_FSEEK_WARN
 361 /* Here, either fseek is undefined (but C89 guarantees that it is
 362    declared), or it is defined as rpl_fseek (declared above).  */
 363 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 364                  "on 32-bit platforms - "
 365                  "use fseeko function for handling of large files");
 366 #endif
 367
 368
 369 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 370
 371 #if @GNULIB_FTELL@
 372 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 373 #  define _GL_FTELL_WARN /* Category 2, above.  */
 374 #  undef ftell
 375 # endif
 376 # if @REPLACE_FTELL@
 377 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 378 #   undef ftell
 379 #   define ftell rpl_ftell
 380 #  endif
 381 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 382 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 383 # else
 384 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 385 # endif
 386 _GL_CXXALIASWARN (ftell);
 387 #endif
 388
 389 #if @GNULIB_FTELLO@
 390 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 391 #  define _GL_FTELL_WARN /* Category 3, above.  */
 392 #  undef ftell
 393 # endif
 394 # if @REPLACE_FTELLO@
 395 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 396 #   undef ftello
 397 #   define ftello rpl_ftello
 398 #  endif
 399 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 400 #  if !@GNULIB_FTELL@
 401     /* In order to avoid that ftell gets defined as a macro here, the
 402        developer can request the 'ftell' module.  */
 403 #   undef ftell
 404 #   define ftell rpl_ftell
 405 static inline long _GL_ARG_NONNULL ((1))
 406 rpl_ftell (FILE *f)
 407 {
 408   return ftello (f);
 409 }
 410 #  endif
 411 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 412 # else
 413 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 414 # endif
 415 _GL_CXXALIASWARN (ftello);
 416 #elif defined GNULIB_POSIXCHECK
 417 # define _GL_FTELL_WARN /* Category 1, above.  */
 418 # undef ftell
 419 # undef ftello
 420 # if HAVE_RAW_DECL_FTELLO
 421 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 422                  "use gnulib module ftello for portability");
 423 # endif
 424 #endif
 425
 426 #ifdef _GL_FTELL_WARN
 427 # undef _GL_FTELL_WARN
 428 /* Here, either ftell is undefined (but C89 guarantees that it is
 429    declared), or it is defined as rpl_ftell (declared above).  */
 430 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 431                  "on 32-bit platforms - "
 432                  "use ftello function for handling of large files");
 433 #endif
 434
 435
 436 #if @GNULIB_FWRITE@
 437 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 438 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 439 #   undef fwrite
 440 #   define fwrite rpl_fwrite
 441 #  endif
 442 _GL_FUNCDECL_RPL (fwrite, size_t,
 443                   (const void *ptr, size_t s, size_t n, FILE *stream)
 444                   _GL_ARG_NONNULL ((1, 4)));
 445 _GL_CXXALIAS_RPL (fwrite, size_t,
 446                   (const void *ptr, size_t s, size_t n, FILE *stream));
 447 # else
 448 _GL_CXXALIAS_SYS (fwrite, size_t,
 449                   (const void *ptr, size_t s, size_t n, FILE *stream));
 450 # endif
 451 _GL_CXXALIASWARN (fwrite);
 452 #endif
 453
 454 #if @GNULIB_GETDELIM@
 455 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 456    STREAM, store it in *LINEPTR (and NUL-terminate it).
 457    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 458    bytes of space.  It is realloc'd as necessary.
 459    Return the number of bytes read and stored at *LINEPTR (not including the
 460    NUL terminator), or -1 on error or EOF.  */
 461 # if @REPLACE_GETDELIM@
 462 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 463 #   undef getdelim
 464 #   define getdelim rpl_getdelim
 465 #  endif
 466 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 467                   (char **lineptr, size_t *linesize, int delimiter,
 468                    FILE *stream)
 469                   _GL_ARG_NONNULL ((1, 2, 4)));
 470 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 471                   (char **lineptr, size_t *linesize, int delimiter,
 472                    FILE *stream));
 473 # else
 474 #  if !@HAVE_DECL_GETDELIM@
 475 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 476                   (char **lineptr, size_t *linesize, int delimiter,
 477                    FILE *stream)
 478                   _GL_ARG_NONNULL ((1, 2, 4)));
 479 #  endif
 480 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 481                   (char **lineptr, size_t *linesize, int delimiter,
 482                    FILE *stream));
 483 # endif
 484 _GL_CXXALIASWARN (getdelim);
 485 #elif defined GNULIB_POSIXCHECK
 486 # undef getdelim
 487 # if HAVE_RAW_DECL_GETDELIM
 488 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 489                  "use gnulib module getdelim for portability");
 490 # endif
 491 #endif
 492
 493 #if @GNULIB_GETLINE@
 494 /* Read a line, up to (and including) the next newline, from STREAM, store it
 495    in *LINEPTR (and NUL-terminate it).
 496    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 497    bytes of space.  It is realloc'd as necessary.
 498    Return the number of bytes read and stored at *LINEPTR (not including the
 499    NUL terminator), or -1 on error or EOF.  */
 500 # if @REPLACE_GETLINE@
 501 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 502 #   undef getline
 503 #   define getline rpl_getline
 504 #  endif
 505 _GL_FUNCDECL_RPL (getline, ssize_t,
 506                   (char **lineptr, size_t *linesize, FILE *stream)
 507                   _GL_ARG_NONNULL ((1, 2, 3)));
 508 _GL_CXXALIAS_RPL (getline, ssize_t,
 509                   (char **lineptr, size_t *linesize, FILE *stream));
 510 # else
 511 #  if !@HAVE_DECL_GETLINE@
 512 _GL_FUNCDECL_SYS (getline, ssize_t,
 513                   (char **lineptr, size_t *linesize, FILE *stream)
 514                   _GL_ARG_NONNULL ((1, 2, 3)));
 515 #  endif
 516 _GL_CXXALIAS_SYS (getline, ssize_t,
 517                   (char **lineptr, size_t *linesize, FILE *stream));
 518 # endif
 519 _GL_CXXALIASWARN (getline);
 520 #elif defined GNULIB_POSIXCHECK
 521 # undef getline
 522 # if HAVE_RAW_DECL_GETLINE
 523 _GL_WARN_ON_USE (getline, "getline is unportable - "
 524                  "use gnulib module getline for portability");
 525 # endif
 526 #endif
 527
 528 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 529 struct obstack;
 530 /* Grow an obstack with formatted output.  Return the number of
 531    bytes added to OBS.  No trailing nul byte is added, and the
 532    object should be closed with obstack_finish before use.  Upon
 533    memory allocation error, call obstack_alloc_failed_handler.  Upon
 534    other error, return -1.  */
 535 # if @REPLACE_OBSTACK_PRINTF@
 536 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 537 #   define obstack_printf rpl_obstack_printf
 538 #  endif
 539 _GL_FUNCDECL_RPL (obstack_printf, int,
 540                   (struct obstack *obs, const char *format, ...)
 541                   __attribute__ ((__format__ (__printf__, 2, 3)))
 542                   _GL_ARG_NONNULL ((1, 2)));
 543 _GL_CXXALIAS_RPL (obstack_printf, int,
 544                   (struct obstack *obs, const char *format, ...));
 545 # else
 546 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 547 _GL_FUNCDECL_SYS (obstack_printf, int,
 548                   (struct obstack *obs, const char *format, ...)
 549                   __attribute__ ((__format__ (__printf__, 2, 3)))
 550                   _GL_ARG_NONNULL ((1, 2)));
 551 #  endif
 552 _GL_CXXALIAS_SYS (obstack_printf, int,
 553                   (struct obstack *obs, const char *format, ...));
 554 # endif
 555 _GL_CXXALIASWARN (obstack_printf);
 556 # if @REPLACE_OBSTACK_PRINTF@
 557 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 558 #   define obstack_vprintf rpl_obstack_vprintf
 559 #  endif
 560 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 561                   (struct obstack *obs, const char *format, va_list args)
 562                   __attribute__ ((__format__ (__printf__, 2, 0)))
 563                   _GL_ARG_NONNULL ((1, 2)));
 564 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 565                   (struct obstack *obs, const char *format, va_list args));
 566 # else
 567 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 568 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 569                   (struct obstack *obs, const char *format, va_list args)
 570                   __attribute__ ((__format__ (__printf__, 2, 0)))
 571                   _GL_ARG_NONNULL ((1, 2)));
 572 #  endif
 573 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 574                   (struct obstack *obs, const char *format, va_list args));
 575 # endif
 576 _GL_CXXALIASWARN (obstack_vprintf);
 577 #endif
 578
 579 #if @GNULIB_PERROR@
 580 /* Print a message to standard error, describing the value of ERRNO,
 581    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 582    and terminated with a newline.  */
 583 # if @REPLACE_PERROR@
 584 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 585 #   define perror rpl_perror
 586 #  endif
 587 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 588 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 589 # else
 590 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 591 # endif
 592 _GL_CXXALIASWARN (perror);
 593 #elif defined GNULIB_POSIXCHECK
 594 # undef perror
 595 /* Assume perror is always declared.  */
 596 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
 597                  "use gnulib module perror for portability");
 598 #endif
 599
 600 #if @GNULIB_POPEN@
 601 # if @REPLACE_POPEN@
 602 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 603 #   undef popen
 604 #   define popen rpl_popen
 605 #  endif
 606 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
 607                                  _GL_ARG_NONNULL ((1, 2)));
 608 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 609 # else
 610 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 611 # endif
 612 _GL_CXXALIASWARN (popen);
 613 #elif defined GNULIB_POSIXCHECK
 614 # undef popen
 615 # if HAVE_RAW_DECL_POPEN
 616 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
 617                  "use gnulib module popen or pipe for more portability");
 618 # endif
 619 #endif
 620
 621 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
 622 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
 623      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
 624 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 625 /* Don't break __attribute__((format(printf,M,N))).  */
 626 #   define printf __printf__
 627 #  endif
 628 #  define GNULIB_overrides_printf 1
 629 _GL_FUNCDECL_RPL_1 (__printf__, int,
 630                     (const char *format, ...)
 631                     __attribute__ ((__format__ (__printf__, 1, 2)))
 632                     _GL_ARG_NONNULL ((1)));
 633 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
 634 # else
 635 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
 636 # endif
 637 _GL_CXXALIASWARN (printf);
 638 #endif
 639 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 640 # if !GNULIB_overrides_printf
 641 #  undef printf
 642 # endif
 643 /* Assume printf is always declared.  */
 644 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
 645                  "use gnulib module printf-posix for portable "
 646                  "POSIX compliance");
 647 #endif
 648
 649 #if @GNULIB_PUTC@
 650 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 651 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 652 #   undef putc
 653 #   define putc rpl_fputc
 654 #  endif
 655 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 656 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
 657 # else
 658 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
 659 # endif
 660 _GL_CXXALIASWARN (putc);
 661 #endif
 662
 663 #if @GNULIB_PUTCHAR@
 664 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 665 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 666 #   undef putchar
 667 #   define putchar rpl_putchar
 668 #  endif
 669 _GL_FUNCDECL_RPL (putchar, int, (int c));
 670 _GL_CXXALIAS_RPL (putchar, int, (int c));
 671 # else
 672 _GL_CXXALIAS_SYS (putchar, int, (int c));
 673 # endif
 674 _GL_CXXALIASWARN (putchar);
 675 #endif
 676
 677 #if @GNULIB_PUTS@
 678 # if @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
 679 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 680 #   undef puts
 681 #   define puts rpl_puts
 682 #  endif
 683 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
 684 _GL_CXXALIAS_RPL (puts, int, (const char *string));
 685 # else
 686 _GL_CXXALIAS_SYS (puts, int, (const char *string));
 687 # endif
 688 _GL_CXXALIASWARN (puts);
 689 #endif
 690
 691 #if @GNULIB_REMOVE@
 692 # if @REPLACE_REMOVE@
 693 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 694 #   undef remove
 695 #   define remove rpl_remove
 696 #  endif
 697 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
 698 _GL_CXXALIAS_RPL (remove, int, (const char *name));
 699 # else
 700 _GL_CXXALIAS_SYS (remove, int, (const char *name));
 701 # endif
 702 _GL_CXXALIASWARN (remove);
 703 #elif defined GNULIB_POSIXCHECK
 704 # undef remove
 705 /* Assume remove is always declared.  */
 706 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
 707                  "use gnulib module remove for more portability");
 708 #endif
 709
 710 #if @GNULIB_RENAME@
 711 # if @REPLACE_RENAME@
 712 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 713 #   undef rename
 714 #   define rename rpl_rename
 715 #  endif
 716 _GL_FUNCDECL_RPL (rename, int,
 717                   (const char *old_filename, const char *new_filename)
 718                   _GL_ARG_NONNULL ((1, 2)));
 719 _GL_CXXALIAS_RPL (rename, int,
 720                   (const char *old_filename, const char *new_filename));
 721 # else
 722 _GL_CXXALIAS_SYS (rename, int,
 723                   (const char *old_filename, const char *new_filename));
 724 # endif
 725 _GL_CXXALIASWARN (rename);
 726 #elif defined GNULIB_POSIXCHECK
 727 # undef rename
 728 /* Assume rename is always declared.  */
 729 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
 730                  "use gnulib module rename for more portability");
 731 #endif
 732
 733 #if @GNULIB_RENAMEAT@
 734 # if @REPLACE_RENAMEAT@
 735 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 736 #   undef renameat
 737 #   define renameat rpl_renameat
 738 #  endif
 739 _GL_FUNCDECL_RPL (renameat, int,
 740                   (int fd1, char const *file1, int fd2, char const *file2)
 741                   _GL_ARG_NONNULL ((2, 4)));
 742 _GL_CXXALIAS_RPL (renameat, int,
 743                   (int fd1, char const *file1, int fd2, char const *file2));
 744 # else
 745 #  if !@HAVE_RENAMEAT@
 746 _GL_FUNCDECL_SYS (renameat, int,
 747                   (int fd1, char const *file1, int fd2, char const *file2)
 748                   _GL_ARG_NONNULL ((2, 4)));
 749 #  endif
 750 _GL_CXXALIAS_SYS (renameat, int,
 751                   (int fd1, char const *file1, int fd2, char const *file2));
 752 # endif
 753 _GL_CXXALIASWARN (renameat);
 754 #elif defined GNULIB_POSIXCHECK
 755 # undef renameat
 756 # if HAVE_RAW_DECL_RENAMEAT
 757 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
 758                  "use gnulib module renameat for portability");
 759 # endif
 760 #endif
 761
 762 #if @GNULIB_SNPRINTF@
 763 # if @REPLACE_SNPRINTF@
 764 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 765 #   define snprintf rpl_snprintf
 766 #  endif
 767 _GL_FUNCDECL_RPL (snprintf, int,
 768                   (char *str, size_t size, const char *format, ...)
 769                   __attribute__ ((__format__ (__printf__, 3, 4)))
 770                   _GL_ARG_NONNULL ((3)));
 771 _GL_CXXALIAS_RPL (snprintf, int,
 772                   (char *str, size_t size, const char *format, ...));
 773 # else
 774 #  if !@HAVE_DECL_SNPRINTF@
 775 _GL_FUNCDECL_SYS (snprintf, int,
 776                   (char *str, size_t size, const char *format, ...)
 777                   __attribute__ ((__format__ (__printf__, 3, 4)))
 778                   _GL_ARG_NONNULL ((3)));
 779 #  endif
 780 _GL_CXXALIAS_SYS (snprintf, int,
 781                   (char *str, size_t size, const char *format, ...));
 782 # endif
 783 _GL_CXXALIASWARN (snprintf);
 784 #elif defined GNULIB_POSIXCHECK
 785 # undef snprintf
 786 # if HAVE_RAW_DECL_SNPRINTF
 787 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
 788                  "use gnulib module snprintf for portability");
 789 # endif
 790 #endif
 791
 792 /* Some people would argue that sprintf should be handled like gets
 793    (for example, OpenBSD issues a link warning for both functions),
 794    since both can cause security holes due to buffer overruns.
 795    However, we believe that sprintf can be used safely, and is more
 796    efficient than snprintf in those safe cases; and as proof of our
 797    belief, we use sprintf in several gnulib modules.  So this header
 798    intentionally avoids adding a warning to sprintf except when
 799    GNULIB_POSIXCHECK is defined.  */
 800
 801 #if @GNULIB_SPRINTF_POSIX@
 802 # if @REPLACE_SPRINTF@
 803 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 804 #   define sprintf rpl_sprintf
 805 #  endif
 806 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
 807                                 __attribute__ ((__format__ (__printf__, 2, 3)))
 808                                 _GL_ARG_NONNULL ((1, 2)));
 809 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
 810 # else
 811 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
 812 # endif
 813 _GL_CXXALIASWARN (sprintf);
 814 #elif defined GNULIB_POSIXCHECK
 815 # undef sprintf
 816 /* Assume sprintf is always declared.  */
 817 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
 818                  "use gnulib module sprintf-posix for portable "
 819                  "POSIX compliance");
 820 #endif
 821
 822 #if @GNULIB_VASPRINTF@
 823 /* Write formatted output to a string dynamically allocated with malloc().
 824    If the memory allocation succeeds, store the address of the string in
 825    *RESULT and return the number of resulting bytes, excluding the trailing
 826    NUL.  Upon memory allocation error, or some other error, return -1.  */
 827 # if @REPLACE_VASPRINTF@
 828 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 829 #   define asprintf rpl_asprintf
 830 #  endif
 831 _GL_FUNCDECL_RPL (asprintf, int,
 832                   (char **result, const char *format, ...)
 833                   __attribute__ ((__format__ (__printf__, 2, 3)))
 834                   _GL_ARG_NONNULL ((1, 2)));
 835 _GL_CXXALIAS_RPL (asprintf, int,
 836                   (char **result, const char *format, ...));
 837 # else
 838 #  if !@HAVE_VASPRINTF@
 839 _GL_FUNCDECL_SYS (asprintf, int,
 840                   (char **result, const char *format, ...)
 841                   __attribute__ ((__format__ (__printf__, 2, 3)))
 842                   _GL_ARG_NONNULL ((1, 2)));
 843 #  endif
 844 _GL_CXXALIAS_SYS (asprintf, int,
 845                   (char **result, const char *format, ...));
 846 # endif
 847 _GL_CXXALIASWARN (asprintf);
 848 # if @REPLACE_VASPRINTF@
 849 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 850 #   define vasprintf rpl_vasprintf
 851 #  endif
 852 _GL_FUNCDECL_RPL (vasprintf, int,
 853                   (char **result, const char *format, va_list args)
 854                   __attribute__ ((__format__ (__printf__, 2, 0)))
 855                   _GL_ARG_NONNULL ((1, 2)));
 856 _GL_CXXALIAS_RPL (vasprintf, int,
 857                   (char **result, const char *format, va_list args));
 858 # else
 859 #  if !@HAVE_VASPRINTF@
 860 _GL_FUNCDECL_SYS (vasprintf, int,
 861                   (char **result, const char *format, va_list args)
 862                   __attribute__ ((__format__ (__printf__, 2, 0)))
 863                   _GL_ARG_NONNULL ((1, 2)));
 864 #  endif
 865 _GL_CXXALIAS_SYS (vasprintf, int,
 866                   (char **result, const char *format, va_list args));
 867 # endif
 868 _GL_CXXALIASWARN (vasprintf);
 869 #endif
 870
 871 #if @GNULIB_VDPRINTF@
 872 # if @REPLACE_VDPRINTF@
 873 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 874 #   define vdprintf rpl_vdprintf
 875 #  endif
 876 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
 877                                  __attribute__ ((__format__ (__printf__, 2, 0)))
 878                                  _GL_ARG_NONNULL ((2)));
 879 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
 880 # else
 881 #  if !@HAVE_VDPRINTF@
 882 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
 883                                  __attribute__ ((__format__ (__printf__, 2, 0)))
 884                                  _GL_ARG_NONNULL ((2)));
 885 #  endif
 886 _GL_CXXALIAS_SYS (vdprintf, int, (int fd, const char *format, va_list args));
 887 # endif
 888 _GL_CXXALIASWARN (vdprintf);
 889 #elif defined GNULIB_POSIXCHECK
 890 # undef vdprintf
 891 # if HAVE_RAW_DECL_VDPRINTF
 892 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
 893                  "use gnulib module vdprintf for portability");
 894 # endif
 895 #endif
 896
 897 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
 898 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
 899      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
 900 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 901 #   define vfprintf rpl_vfprintf
 902 #  endif
 903 #  define GNULIB_overrides_vfprintf 1
 904 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
 905                                  __attribute__ ((__format__ (__printf__, 2, 0)))
 906                                  _GL_ARG_NONNULL ((1, 2)));
 907 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
 908 # else
 909 _GL_CXXALIAS_SYS (vfprintf, int, (FILE *fp, const char *format, va_list args));
 910 # endif
 911 _GL_CXXALIASWARN (vfprintf);
 912 #endif
 913 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 914 # if !GNULIB_overrides_vfprintf
 915 #  undef vfprintf
 916 # endif
 917 /* Assume vfprintf is always declared.  */
 918 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
 919                  "use gnulib module vfprintf-posix for portable "
 920                       "POSIX compliance");
 921 #endif
 922
 923 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
 924 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
 925      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@)
 926 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 927 #   define vprintf rpl_vprintf
 928 #  endif
 929 #  define GNULIB_overrides_vprintf 1
 930 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
 931                                 __attribute__ ((__format__ (__printf__, 1, 0)))
 932                                 _GL_ARG_NONNULL ((1)));
 933 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
 934 # else
 935 _GL_CXXALIAS_SYS (vprintf, int, (const char *format, va_list args));
 936 # endif
 937 _GL_CXXALIASWARN (vprintf);
 938 #endif
 939 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 940 # if !GNULIB_overrides_vprintf
 941 #  undef vprintf
 942 # endif
 943 /* Assume vprintf is always declared.  */
 944 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
 945                  "use gnulib module vprintf-posix for portable "
 946                  "POSIX compliance");
 947 #endif
 948
 949 #if @GNULIB_VSNPRINTF@
 950 # if @REPLACE_VSNPRINTF@
 951 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 952 #   define vsnprintf rpl_vsnprintf
 953 #  endif
 954 _GL_FUNCDECL_RPL (vsnprintf, int,
 955                   (char *str, size_t size, const char *format, va_list args)
 956                   __attribute__ ((__format__ (__printf__, 3, 0)))
 957                   _GL_ARG_NONNULL ((3)));
 958 _GL_CXXALIAS_RPL (vsnprintf, int,
 959                   (char *str, size_t size, const char *format, va_list args));
 960 # else
 961 #  if !@HAVE_DECL_VSNPRINTF@
 962 _GL_FUNCDECL_SYS (vsnprintf, int,
 963                   (char *str, size_t size, const char *format, va_list args)
 964                   __attribute__ ((__format__ (__printf__, 3, 0)))
 965                   _GL_ARG_NONNULL ((3)));
 966 #  endif
 967 _GL_CXXALIAS_SYS (vsnprintf, int,
 968                   (char *str, size_t size, const char *format, va_list args));
 969 # endif
 970 _GL_CXXALIASWARN (vsnprintf);
 971 #elif defined GNULIB_POSIXCHECK
 972 # undef vsnprintf
 973 # if HAVE_RAW_DECL_VSNPRINTF
 974 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
 975                  "use gnulib module vsnprintf for portability");
 976 # endif
 977 #endif
 978
 979 #if @GNULIB_VSPRINTF_POSIX@
 980 # if @REPLACE_VSPRINTF@
 981 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 982 #   define vsprintf rpl_vsprintf
 983 #  endif
 984 _GL_FUNCDECL_RPL (vsprintf, int,
 985                   (char *str, const char *format, va_list args)
 986                   __attribute__ ((__format__ (__printf__, 2, 0)))
 987                   _GL_ARG_NONNULL ((1, 2)));
 988 _GL_CXXALIAS_RPL (vsprintf, int,
 989                   (char *str, const char *format, va_list args));
 990 # else
 991 _GL_CXXALIAS_SYS (vsprintf, int,
 992                   (char *str, const char *format, va_list args));
 993 # endif
 994 _GL_CXXALIASWARN (vsprintf);
 995 #elif defined GNULIB_POSIXCHECK
 996 # undef vsprintf
 997 /* Assume vsprintf is always declared.  */
 998 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
 999                  "use gnulib module vsprintf-posix for portable "
1000                       "POSIX compliance");
1001 #endif
1002
1003
1004 #endif /* _GL_STDIO_H */
1005 #endif /* _GL_STDIO_H */
1006 #endif