gnulib/import/stdio.in.h

   1 /* A GNU-like <stdio.h>.
   2
   3    Copyright (C) 2004, 2007-2019 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, see <https://www.gnu.org/licenses/>.  */
  17
  18 #if __GNUC__ >= 3
  19 @PRAGMA_SYSTEM_HEADER@
  20 #endif
  21 @PRAGMA_COLUMNS@
  22
  23 #if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H
  24 /* Special invocation convention:
  25    - Inside glibc header files.
  26    - On OSF/1 5.1 we have a sequence of nested includes
  27      <stdio.h> -> <getopt.h> -> <ctype.h> -> <sys/localedef.h> ->
  28      <sys/lc_core.h> -> <nl_types.h> -> <mesg.h> -> <stdio.h>.
  29      In this situation, the functions are not yet declared, therefore we cannot
  30      provide the C++ aliases.  */
  31
  32 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  33
  34 #else
  35 /* Normal invocation convention.  */
  36
  37 #ifndef _@GUARD_PREFIX@_STDIO_H
  38
  39 #define _GL_ALREADY_INCLUDING_STDIO_H
  40
  41 /* The include_next requires a split double-inclusion guard.  */
  42 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  43
  44 #undef _GL_ALREADY_INCLUDING_STDIO_H
  45
  46 #ifndef _@GUARD_PREFIX@_STDIO_H
  47 #define _@GUARD_PREFIX@_STDIO_H
  48
  49 /* Get va_list.  Needed on many systems, including glibc 2.8.  */
  50 #include <stdarg.h>
  51
  52 #include <stddef.h>
  53
  54 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8
  55    and eglibc 2.11.2.
  56    May also define off_t to a 64-bit type on native Windows.  */
  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 #if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
  88 # define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
  89   _GL_ATTRIBUTE_FORMAT_PRINTF (formatstring_parameter, first_argument)
  90 #else
  91 # define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
  92   _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  93 #endif
  94
  95 /* _GL_ATTRIBUTE_FORMAT_SCANF
  96    indicates to GCC that the function takes a format string and arguments,
  97    where the format string directives are the ones standardized by ISO C99
  98    and POSIX.  */
  99 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
 100 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
 101    _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
 102 #else
 103 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
 104    _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 105 #endif
 106
 107 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
 108    except that it indicates to GCC that the supported format string directives
 109    are the ones of the system scanf(), rather than the ones standardized by
 110    ISO C99 and POSIX.  */
 111 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
 112   _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 113
 114 /* Solaris 10 and NetBSD 7.0 declare renameat in <unistd.h>, not in <stdio.h>.  */
 115 /* But in any case avoid namespace pollution on glibc systems.  */
 116 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && (defined __sun || defined __NetBSD__) \
 117     && ! defined __GLIBC__
 118 # include <unistd.h>
 119 #endif
 120
 121 /* Android 4.3 declares renameat in <sys/stat.h>, not in <stdio.h>.  */
 122 /* But in any case avoid namespace pollution on glibc systems.  */
 123 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \
 124     && ! defined __GLIBC__
 125 # include <sys/stat.h>
 126 #endif
 127
 128 /* MSVC declares 'perror' in <stdlib.h>, not in <stdio.h>.  We must include
 129    it before we  #define perror rpl_perror.  */
 130 /* But in any case avoid namespace pollution on glibc systems.  */
 131 #if (@GNULIB_PERROR@ || defined GNULIB_POSIXCHECK) \
 132     && (defined _WIN32 && ! defined __CYGWIN__) \
 133     && ! defined __GLIBC__
 134 # include <stdlib.h>
 135 #endif
 136
 137 /* MSVC declares 'remove' in <io.h>, not in <stdio.h>.  We must include
 138    it before we  #define remove rpl_remove.  */
 139 /* MSVC declares 'rename' in <io.h>, not in <stdio.h>.  We must include
 140    it before we  #define rename rpl_rename.  */
 141 /* But in any case avoid namespace pollution on glibc systems.  */
 142 #if (@GNULIB_REMOVE@ || @GNULIB_RENAME@ || defined GNULIB_POSIXCHECK) \
 143     && (defined _WIN32 && ! defined __CYGWIN__) \
 144     && ! defined __GLIBC__
 145 # include <io.h>
 146 #endif
 147
 148
 149 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 150
 151 /* The definition of _GL_ARG_NONNULL is copied here.  */
 152
 153 /* The definition of _GL_WARN_ON_USE is copied here.  */
 154
 155 /* Macros for stringification.  */
 156 #define _GL_STDIO_STRINGIZE(token) #token
 157 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
 158
 159 /* When also using extern inline, suppress the use of static inline in
 160    standard headers of problematic Apple configurations, as Libc at
 161    least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
 162    <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
 163    Perhaps Apple will fix this some day.  */
 164 #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
 165      && defined __GNUC__ && defined __STDC__)
 166 # undef putc_unlocked
 167 #endif
 168
 169 #if @GNULIB_DPRINTF@
 170 # if @REPLACE_DPRINTF@
 171 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 172 #   define dprintf rpl_dprintf
 173 #  endif
 174 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
 175                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 176                                 _GL_ARG_NONNULL ((2)));
 177 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
 178 # else
 179 #  if !@HAVE_DPRINTF@
 180 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
 181                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 182                                 _GL_ARG_NONNULL ((2)));
 183 #  endif
 184 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
 185 # endif
 186 _GL_CXXALIASWARN (dprintf);
 187 #elif defined GNULIB_POSIXCHECK
 188 # undef dprintf
 189 # if HAVE_RAW_DECL_DPRINTF
 190 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
 191                  "use gnulib module dprintf for portability");
 192 # endif
 193 #endif
 194
 195 #if @GNULIB_FCLOSE@
 196 /* Close STREAM and its underlying file descriptor.  */
 197 # if @REPLACE_FCLOSE@
 198 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 199 #   define fclose rpl_fclose
 200 #  endif
 201 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 202 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 203 # else
 204 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 205 # endif
 206 # if __GLIBC__ >= 2
 207 _GL_CXXALIASWARN (fclose);
 208 # endif
 209 #elif defined GNULIB_POSIXCHECK
 210 # undef fclose
 211 /* Assume fclose is always declared.  */
 212 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 213                  "use gnulib module fclose for portable POSIX compliance");
 214 #endif
 215
 216 #if @GNULIB_FDOPEN@
 217 # if @REPLACE_FDOPEN@
 218 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 219 #   undef fdopen
 220 #   define fdopen rpl_fdopen
 221 #  endif
 222 _GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
 223                                   _GL_ARG_NONNULL ((2)));
 224 _GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
 225 # else
 226 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
 227 # endif
 228 _GL_CXXALIASWARN (fdopen);
 229 #elif defined GNULIB_POSIXCHECK
 230 # undef fdopen
 231 /* Assume fdopen is always declared.  */
 232 _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
 233                  "use gnulib module fdopen for portability");
 234 #endif
 235
 236 #if @GNULIB_FFLUSH@
 237 /* Flush all pending data on STREAM according to POSIX rules.  Both
 238    output and seekable input streams are supported.
 239    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 240    that is _not_seekable_ or on an update stream that is _not_seekable_
 241    and in which the most recent operation was input.  Seekability can
 242    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 243 # if @REPLACE_FFLUSH@
 244 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 245 #   define fflush rpl_fflush
 246 #  endif
 247 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 248 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 249 # else
 250 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 251 # endif
 252 # if __GLIBC__ >= 2
 253 _GL_CXXALIASWARN (fflush);
 254 # endif
 255 #elif defined GNULIB_POSIXCHECK
 256 # undef fflush
 257 /* Assume fflush is always declared.  */
 258 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 259                  "use gnulib module fflush for portable POSIX compliance");
 260 #endif
 261
 262 #if @GNULIB_FGETC@
 263 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 264 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 265 #   undef fgetc
 266 #   define fgetc rpl_fgetc
 267 #  endif
 268 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 269 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
 270 # else
 271 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
 272 # endif
 273 # if __GLIBC__ >= 2
 274 _GL_CXXALIASWARN (fgetc);
 275 # endif
 276 #endif
 277
 278 #if @GNULIB_FGETS@
 279 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 280 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 281 #   undef fgets
 282 #   define fgets rpl_fgets
 283 #  endif
 284 _GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
 285                                  _GL_ARG_NONNULL ((1, 3)));
 286 _GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
 287 # else
 288 _GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
 289 # endif
 290 # if __GLIBC__ >= 2
 291 _GL_CXXALIASWARN (fgets);
 292 # endif
 293 #endif
 294
 295 #if @GNULIB_FOPEN@
 296 # if @REPLACE_FOPEN@
 297 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 298 #   undef fopen
 299 #   define fopen rpl_fopen
 300 #  endif
 301 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
 302                                  _GL_ARG_NONNULL ((1, 2)));
 303 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
 304 # else
 305 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
 306 # endif
 307 # if __GLIBC__ >= 2
 308 _GL_CXXALIASWARN (fopen);
 309 # endif
 310 #elif defined GNULIB_POSIXCHECK
 311 # undef fopen
 312 /* Assume fopen is always declared.  */
 313 _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
 314                  "use gnulib module fopen for portability");
 315 #endif
 316
 317 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 318 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 319      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 320 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 321 #   define fprintf rpl_fprintf
 322 #  endif
 323 #  define GNULIB_overrides_fprintf 1
 324 #  if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 325 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 326                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 327                                 _GL_ARG_NONNULL ((1, 2)));
 328 #  else
 329 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 330                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
 331                                 _GL_ARG_NONNULL ((1, 2)));
 332 #  endif
 333 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
 334 # else
 335 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
 336 # endif
 337 # if __GLIBC__ >= 2
 338 _GL_CXXALIASWARN (fprintf);
 339 # endif
 340 #endif
 341 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 342 # if !GNULIB_overrides_fprintf
 343 #  undef fprintf
 344 # endif
 345 /* Assume fprintf is always declared.  */
 346 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 347                  "use gnulib module fprintf-posix for portable "
 348                  "POSIX compliance");
 349 #endif
 350
 351 #if @GNULIB_FPURGE@
 352 /* Discard all pending buffered I/O data on STREAM.
 353    STREAM must not be wide-character oriented.
 354    When discarding pending output, the file position is set back to where it
 355    was before the write calls.  When discarding pending input, the file
 356    position is advanced to match the end of the previously read input.
 357    Return 0 if successful.  Upon error, return -1 and set errno.  */
 358 # if @REPLACE_FPURGE@
 359 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 360 #   define fpurge rpl_fpurge
 361 #  endif
 362 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 363 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 364 # else
 365 #  if !@HAVE_DECL_FPURGE@
 366 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 367 #  endif
 368 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 369 # endif
 370 _GL_CXXALIASWARN (fpurge);
 371 #elif defined GNULIB_POSIXCHECK
 372 # undef fpurge
 373 # if HAVE_RAW_DECL_FPURGE
 374 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 375                  "use gnulib module fpurge for portability");
 376 # endif
 377 #endif
 378
 379 #if @GNULIB_FPUTC@
 380 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 381 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 382 #   undef fputc
 383 #   define fputc rpl_fputc
 384 #  endif
 385 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 386 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 387 # else
 388 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 389 # endif
 390 # if __GLIBC__ >= 2
 391 _GL_CXXALIASWARN (fputc);
 392 # endif
 393 #endif
 394
 395 #if @GNULIB_FPUTS@
 396 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 397 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 398 #   undef fputs
 399 #   define fputs rpl_fputs
 400 #  endif
 401 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
 402                               _GL_ARG_NONNULL ((1, 2)));
 403 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
 404 # else
 405 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
 406 # endif
 407 # if __GLIBC__ >= 2
 408 _GL_CXXALIASWARN (fputs);
 409 # endif
 410 #endif
 411
 412 #if @GNULIB_FREAD@
 413 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 414 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 415 #   undef fread
 416 #   define fread rpl_fread
 417 #  endif
 418 _GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
 419                                  _GL_ARG_NONNULL ((4)));
 420 _GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 421 # else
 422 _GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 423 # endif
 424 # if __GLIBC__ >= 2
 425 _GL_CXXALIASWARN (fread);
 426 # endif
 427 #endif
 428
 429 #if @GNULIB_FREOPEN@
 430 # if @REPLACE_FREOPEN@
 431 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 432 #   undef freopen
 433 #   define freopen rpl_freopen
 434 #  endif
 435 _GL_FUNCDECL_RPL (freopen, FILE *,
 436                   (const char *filename, const char *mode, FILE *stream)
 437                   _GL_ARG_NONNULL ((2, 3)));
 438 _GL_CXXALIAS_RPL (freopen, FILE *,
 439                   (const char *filename, const char *mode, FILE *stream));
 440 # else
 441 _GL_CXXALIAS_SYS (freopen, FILE *,
 442                   (const char *filename, const char *mode, FILE *stream));
 443 # endif
 444 # if __GLIBC__ >= 2
 445 _GL_CXXALIASWARN (freopen);
 446 # endif
 447 #elif defined GNULIB_POSIXCHECK
 448 # undef freopen
 449 /* Assume freopen is always declared.  */
 450 _GL_WARN_ON_USE (freopen,
 451                  "freopen on native Windows platforms is not POSIX compliant - "
 452                  "use gnulib module freopen for portability");
 453 #endif
 454
 455 #if @GNULIB_FSCANF@
 456 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 457 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 458 #   undef fscanf
 459 #   define fscanf rpl_fscanf
 460 #  endif
 461 _GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
 462                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
 463                                _GL_ARG_NONNULL ((1, 2)));
 464 _GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
 465 # else
 466 _GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
 467 # endif
 468 # if __GLIBC__ >= 2
 469 _GL_CXXALIASWARN (fscanf);
 470 # endif
 471 #endif
 472
 473
 474 /* Set up the following warnings, based on which modules are in use.
 475    GNU Coding Standards discourage the use of fseek, since it imposes
 476    an arbitrary limitation on some 32-bit hosts.  Remember that the
 477    fseek module depends on the fseeko module, so we only have three
 478    cases to consider:
 479
 480    1. The developer is not using either module.  Issue a warning under
 481    GNULIB_POSIXCHECK for both functions, to remind them that both
 482    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 483    impact on this warning.
 484
 485    2. The developer is using both modules.  They may be unaware of the
 486    arbitrary limitations of fseek, so issue a warning under
 487    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 488    modules intentionally, so the developer can define
 489    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 490    is safe, to silence the warning.
 491
 492    3. The developer is using the fseeko module, but not fseek.  Gnulib
 493    guarantees that fseek will still work around platform bugs in that
 494    case, but we presume that the developer is aware of the pitfalls of
 495    fseek and was trying to avoid it, so issue a warning even when
 496    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 497    defined to silence the warning in particular compilation units.
 498    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 499    fseek gets defined as a macro, it is recommended that the developer
 500    uses the fseek module, even if he is not calling the fseek function.
 501
 502    Most gnulib clients that perform stream operations should fall into
 503    category 3.  */
 504
 505 #if @GNULIB_FSEEK@
 506 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 507 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 508 #  undef fseek
 509 # endif
 510 # if @REPLACE_FSEEK@
 511 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 512 #   undef fseek
 513 #   define fseek rpl_fseek
 514 #  endif
 515 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 516                               _GL_ARG_NONNULL ((1)));
 517 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 518 # else
 519 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 520 # endif
 521 # if __GLIBC__ >= 2
 522 _GL_CXXALIASWARN (fseek);
 523 # endif
 524 #endif
 525
 526 #if @GNULIB_FSEEKO@
 527 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 528 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 529 #  undef fseek
 530 # endif
 531 # if @REPLACE_FSEEKO@
 532 /* Provide an fseeko function that is aware of a preceding fflush(), and which
 533    detects pipes.  */
 534 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 535 #   undef fseeko
 536 #   define fseeko rpl_fseeko
 537 #  endif
 538 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 539                                _GL_ARG_NONNULL ((1)));
 540 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 541 # else
 542 #  if ! @HAVE_DECL_FSEEKO@
 543 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
 544                                _GL_ARG_NONNULL ((1)));
 545 #  endif
 546 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 547 # endif
 548 _GL_CXXALIASWARN (fseeko);
 549 #elif defined GNULIB_POSIXCHECK
 550 # define _GL_FSEEK_WARN /* Category 1, above.  */
 551 # undef fseek
 552 # undef fseeko
 553 # if HAVE_RAW_DECL_FSEEKO
 554 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 555                  "use gnulib module fseeko for portability");
 556 # endif
 557 #endif
 558
 559 #ifdef _GL_FSEEK_WARN
 560 # undef _GL_FSEEK_WARN
 561 /* Here, either fseek is undefined (but C89 guarantees that it is
 562    declared), or it is defined as rpl_fseek (declared above).  */
 563 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 564                  "on 32-bit platforms - "
 565                  "use fseeko function for handling of large files");
 566 #endif
 567
 568
 569 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 570
 571 #if @GNULIB_FTELL@
 572 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 573 #  define _GL_FTELL_WARN /* Category 2, above.  */
 574 #  undef ftell
 575 # endif
 576 # if @REPLACE_FTELL@
 577 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 578 #   undef ftell
 579 #   define ftell rpl_ftell
 580 #  endif
 581 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 582 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 583 # else
 584 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 585 # endif
 586 # if __GLIBC__ >= 2
 587 _GL_CXXALIASWARN (ftell);
 588 # endif
 589 #endif
 590
 591 #if @GNULIB_FTELLO@
 592 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 593 #  define _GL_FTELL_WARN /* Category 3, above.  */
 594 #  undef ftell
 595 # endif
 596 # if @REPLACE_FTELLO@
 597 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 598 #   undef ftello
 599 #   define ftello rpl_ftello
 600 #  endif
 601 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 602 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 603 # else
 604 #  if ! @HAVE_DECL_FTELLO@
 605 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 606 #  endif
 607 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 608 # endif
 609 _GL_CXXALIASWARN (ftello);
 610 #elif defined GNULIB_POSIXCHECK
 611 # define _GL_FTELL_WARN /* Category 1, above.  */
 612 # undef ftell
 613 # undef ftello
 614 # if HAVE_RAW_DECL_FTELLO
 615 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 616                  "use gnulib module ftello for portability");
 617 # endif
 618 #endif
 619
 620 #ifdef _GL_FTELL_WARN
 621 # undef _GL_FTELL_WARN
 622 /* Here, either ftell is undefined (but C89 guarantees that it is
 623    declared), or it is defined as rpl_ftell (declared above).  */
 624 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 625                  "on 32-bit platforms - "
 626                  "use ftello function for handling of large files");
 627 #endif
 628
 629
 630 #if @GNULIB_FWRITE@
 631 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 632 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 633 #   undef fwrite
 634 #   define fwrite rpl_fwrite
 635 #  endif
 636 _GL_FUNCDECL_RPL (fwrite, size_t,
 637                   (const void *ptr, size_t s, size_t n, FILE *stream)
 638                   _GL_ARG_NONNULL ((1, 4)));
 639 _GL_CXXALIAS_RPL (fwrite, size_t,
 640                   (const void *ptr, size_t s, size_t n, FILE *stream));
 641 # else
 642 _GL_CXXALIAS_SYS (fwrite, size_t,
 643                   (const void *ptr, size_t s, size_t n, FILE *stream));
 644
 645 /* Work around bug 11959 when fortifying glibc 2.4 through 2.15
 646    <https://sourceware.org/bugzilla/show_bug.cgi?id=11959>,
 647    which sometimes causes an unwanted diagnostic for fwrite calls.
 648    This affects only function declaration attributes under certain
 649    versions of gcc and clang, and is not needed for C++.  */
 650 #  if (0 < __USE_FORTIFY_LEVEL                                          \
 651        && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
 652        && 3 < __GNUC__ + (4 <= __GNUC_MINOR__)                          \
 653        && !defined __cplusplus)
 654 #   undef fwrite
 655 #   undef fwrite_unlocked
 656 extern size_t __REDIRECT (rpl_fwrite,
 657                           (const void *__restrict, size_t, size_t,
 658                            FILE *__restrict),
 659                           fwrite);
 660 extern size_t __REDIRECT (rpl_fwrite_unlocked,
 661                           (const void *__restrict, size_t, size_t,
 662                            FILE *__restrict),
 663                           fwrite_unlocked);
 664 #   define fwrite rpl_fwrite
 665 #   define fwrite_unlocked rpl_fwrite_unlocked
 666 #  endif
 667 # endif
 668 # if __GLIBC__ >= 2
 669 _GL_CXXALIASWARN (fwrite);
 670 # endif
 671 #endif
 672
 673 #if @GNULIB_GETC@
 674 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 675 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 676 #   undef getc
 677 #   define getc rpl_fgetc
 678 #  endif
 679 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 680 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
 681 # else
 682 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
 683 # endif
 684 # if __GLIBC__ >= 2
 685 _GL_CXXALIASWARN (getc);
 686 # endif
 687 #endif
 688
 689 #if @GNULIB_GETCHAR@
 690 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 691 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 692 #   undef getchar
 693 #   define getchar rpl_getchar
 694 #  endif
 695 _GL_FUNCDECL_RPL (getchar, int, (void));
 696 _GL_CXXALIAS_RPL (getchar, int, (void));
 697 # else
 698 _GL_CXXALIAS_SYS (getchar, int, (void));
 699 # endif
 700 # if __GLIBC__ >= 2
 701 _GL_CXXALIASWARN (getchar);
 702 # endif
 703 #endif
 704
 705 #if @GNULIB_GETDELIM@
 706 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 707    STREAM, store it in *LINEPTR (and NUL-terminate it).
 708    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 709    bytes of space.  It is realloc'd as necessary.
 710    Return the number of bytes read and stored at *LINEPTR (not including the
 711    NUL terminator), or -1 on error or EOF.  */
 712 # if @REPLACE_GETDELIM@
 713 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 714 #   undef getdelim
 715 #   define getdelim rpl_getdelim
 716 #  endif
 717 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 718                   (char **lineptr, size_t *linesize, int delimiter,
 719                    FILE *stream)
 720                   _GL_ARG_NONNULL ((1, 2, 4)));
 721 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 722                   (char **lineptr, size_t *linesize, int delimiter,
 723                    FILE *stream));
 724 # else
 725 #  if !@HAVE_DECL_GETDELIM@
 726 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 727                   (char **lineptr, size_t *linesize, int delimiter,
 728                    FILE *stream)
 729                   _GL_ARG_NONNULL ((1, 2, 4)));
 730 #  endif
 731 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 732                   (char **lineptr, size_t *linesize, int delimiter,
 733                    FILE *stream));
 734 # endif
 735 _GL_CXXALIASWARN (getdelim);
 736 #elif defined GNULIB_POSIXCHECK
 737 # undef getdelim
 738 # if HAVE_RAW_DECL_GETDELIM
 739 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 740                  "use gnulib module getdelim for portability");
 741 # endif
 742 #endif
 743
 744 #if @GNULIB_GETLINE@
 745 /* Read a line, up to (and including) the next newline, from STREAM, store it
 746    in *LINEPTR (and NUL-terminate it).
 747    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 748    bytes of space.  It is realloc'd as necessary.
 749    Return the number of bytes read and stored at *LINEPTR (not including the
 750    NUL terminator), or -1 on error or EOF.  */
 751 # if @REPLACE_GETLINE@
 752 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 753 #   undef getline
 754 #   define getline rpl_getline
 755 #  endif
 756 _GL_FUNCDECL_RPL (getline, ssize_t,
 757                   (char **lineptr, size_t *linesize, FILE *stream)
 758                   _GL_ARG_NONNULL ((1, 2, 3)));
 759 _GL_CXXALIAS_RPL (getline, ssize_t,
 760                   (char **lineptr, size_t *linesize, FILE *stream));
 761 # else
 762 #  if !@HAVE_DECL_GETLINE@
 763 _GL_FUNCDECL_SYS (getline, ssize_t,
 764                   (char **lineptr, size_t *linesize, FILE *stream)
 765                   _GL_ARG_NONNULL ((1, 2, 3)));
 766 #  endif
 767 _GL_CXXALIAS_SYS (getline, ssize_t,
 768                   (char **lineptr, size_t *linesize, FILE *stream));
 769 # endif
 770 # if @HAVE_DECL_GETLINE@
 771 _GL_CXXALIASWARN (getline);
 772 # endif
 773 #elif defined GNULIB_POSIXCHECK
 774 # undef getline
 775 # if HAVE_RAW_DECL_GETLINE
 776 _GL_WARN_ON_USE (getline, "getline is unportable - "
 777                  "use gnulib module getline for portability");
 778 # endif
 779 #endif
 780
 781 /* It is very rare that the developer ever has full control of stdin,
 782    so any use of gets warrants an unconditional warning; besides, C11
 783    removed it.  */
 784 #undef gets
 785 #if HAVE_RAW_DECL_GETS && !defined __cplusplus
 786 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 787 #endif
 788
 789 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 790 struct obstack;
 791 /* Grow an obstack with formatted output.  Return the number of
 792    bytes added to OBS.  No trailing nul byte is added, and the
 793    object should be closed with obstack_finish before use.  Upon
 794    memory allocation error, call obstack_alloc_failed_handler.  Upon
 795    other error, return -1.  */
 796 # if @REPLACE_OBSTACK_PRINTF@
 797 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 798 #   define obstack_printf rpl_obstack_printf
 799 #  endif
 800 _GL_FUNCDECL_RPL (obstack_printf, int,
 801                   (struct obstack *obs, const char *format, ...)
 802                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 803                   _GL_ARG_NONNULL ((1, 2)));
 804 _GL_CXXALIAS_RPL (obstack_printf, int,
 805                   (struct obstack *obs, const char *format, ...));
 806 # else
 807 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 808 _GL_FUNCDECL_SYS (obstack_printf, int,
 809                   (struct obstack *obs, const char *format, ...)
 810                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 811                   _GL_ARG_NONNULL ((1, 2)));
 812 #  endif
 813 _GL_CXXALIAS_SYS (obstack_printf, int,
 814                   (struct obstack *obs, const char *format, ...));
 815 # endif
 816 _GL_CXXALIASWARN (obstack_printf);
 817 # if @REPLACE_OBSTACK_PRINTF@
 818 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 819 #   define obstack_vprintf rpl_obstack_vprintf
 820 #  endif
 821 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 822                   (struct obstack *obs, const char *format, va_list args)
 823                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 824                   _GL_ARG_NONNULL ((1, 2)));
 825 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 826                   (struct obstack *obs, const char *format, va_list args));
 827 # else
 828 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 829 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 830                   (struct obstack *obs, const char *format, va_list args)
 831                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 832                   _GL_ARG_NONNULL ((1, 2)));
 833 #  endif
 834 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 835                   (struct obstack *obs, const char *format, va_list args));
 836 # endif
 837 _GL_CXXALIASWARN (obstack_vprintf);
 838 #endif
 839
 840 #if @GNULIB_PCLOSE@
 841 # if !@HAVE_PCLOSE@
 842 _GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 843 # endif
 844 _GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
 845 _GL_CXXALIASWARN (pclose);
 846 #elif defined GNULIB_POSIXCHECK
 847 # undef pclose
 848 # if HAVE_RAW_DECL_PCLOSE
 849 _GL_WARN_ON_USE (pclose, "pclose is unportable - "
 850                  "use gnulib module pclose for more portability");
 851 # endif
 852 #endif
 853
 854 #if @GNULIB_PERROR@
 855 /* Print a message to standard error, describing the value of ERRNO,
 856    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 857    and terminated with a newline.  */
 858 # if @REPLACE_PERROR@
 859 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 860 #   define perror rpl_perror
 861 #  endif
 862 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 863 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 864 # else
 865 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 866 # endif
 867 # if __GLIBC__ >= 2
 868 _GL_CXXALIASWARN (perror);
 869 # endif
 870 #elif defined GNULIB_POSIXCHECK
 871 # undef perror
 872 /* Assume perror is always declared.  */
 873 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
 874                  "use gnulib module perror for portability");
 875 #endif
 876
 877 #if @GNULIB_POPEN@
 878 # if @REPLACE_POPEN@
 879 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 880 #   undef popen
 881 #   define popen rpl_popen
 882 #  endif
 883 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
 884                                  _GL_ARG_NONNULL ((1, 2)));
 885 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 886 # else
 887 #  if !@HAVE_POPEN@
 888 _GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
 889                                  _GL_ARG_NONNULL ((1, 2)));
 890 #  endif
 891 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 892 # endif
 893 _GL_CXXALIASWARN (popen);
 894 #elif defined GNULIB_POSIXCHECK
 895 # undef popen
 896 # if HAVE_RAW_DECL_POPEN
 897 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
 898                  "use gnulib module popen or pipe for more portability");
 899 # endif
 900 #endif
 901
 902 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
 903 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
 904      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 905 #  if defined __GNUC__
 906 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 907 /* Don't break __attribute__((format(printf,M,N))).  */
 908 #    define printf __printf__
 909 #   endif
 910 #   if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 911 _GL_FUNCDECL_RPL_1 (__printf__, int,
 912                     (const char *format, ...)
 913                     __asm__ (@ASM_SYMBOL_PREFIX@
 914                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 915                     _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 916                     _GL_ARG_NONNULL ((1)));
 917 #   else
 918 _GL_FUNCDECL_RPL_1 (__printf__, int,
 919                     (const char *format, ...)
 920                     __asm__ (@ASM_SYMBOL_PREFIX@
 921                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 922                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
 923                     _GL_ARG_NONNULL ((1)));
 924 #   endif
 925 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
 926 #  else
 927 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 928 #    define printf rpl_printf
 929 #   endif
 930 _GL_FUNCDECL_RPL (printf, int,
 931                   (const char *format, ...)
 932                   _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 933                   _GL_ARG_NONNULL ((1)));
 934 _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
 935 #  endif
 936 #  define GNULIB_overrides_printf 1
 937 # else
 938 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
 939 # endif
 940 # if __GLIBC__ >= 2
 941 _GL_CXXALIASWARN (printf);
 942 # endif
 943 #endif
 944 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 945 # if !GNULIB_overrides_printf
 946 #  undef printf
 947 # endif
 948 /* Assume printf is always declared.  */
 949 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
 950                  "use gnulib module printf-posix for portable "
 951                  "POSIX compliance");
 952 #endif
 953
 954 #if @GNULIB_PUTC@
 955 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 956 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 957 #   undef putc
 958 #   define putc rpl_fputc
 959 #  endif
 960 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 961 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
 962 # else
 963 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
 964 # endif
 965 # if __GLIBC__ >= 2
 966 _GL_CXXALIASWARN (putc);
 967 # endif
 968 #endif
 969
 970 #if @GNULIB_PUTCHAR@
 971 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 972 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 973 #   undef putchar
 974 #   define putchar rpl_putchar
 975 #  endif
 976 _GL_FUNCDECL_RPL (putchar, int, (int c));
 977 _GL_CXXALIAS_RPL (putchar, int, (int c));
 978 # else
 979 _GL_CXXALIAS_SYS (putchar, int, (int c));
 980 # endif
 981 # if __GLIBC__ >= 2
 982 _GL_CXXALIASWARN (putchar);
 983 # endif
 984 #endif
 985
 986 #if @GNULIB_PUTS@
 987 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 988 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 989 #   undef puts
 990 #   define puts rpl_puts
 991 #  endif
 992 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
 993 _GL_CXXALIAS_RPL (puts, int, (const char *string));
 994 # else
 995 _GL_CXXALIAS_SYS (puts, int, (const char *string));
 996 # endif
 997 # if __GLIBC__ >= 2
 998 _GL_CXXALIASWARN (puts);
 999 # endif
1000 #endif
1001
1002 #if @GNULIB_REMOVE@
1003 # if @REPLACE_REMOVE@
1004 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1005 #   undef remove
1006 #   define remove rpl_remove
1007 #  endif
1008 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
1009 _GL_CXXALIAS_RPL (remove, int, (const char *name));
1010 # else
1011 _GL_CXXALIAS_SYS (remove, int, (const char *name));
1012 # endif
1013 # if __GLIBC__ >= 2
1014 _GL_CXXALIASWARN (remove);
1015 # endif
1016 #elif defined GNULIB_POSIXCHECK
1017 # undef remove
1018 /* Assume remove is always declared.  */
1019 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
1020                  "use gnulib module remove for more portability");
1021 #endif
1022
1023 #if @GNULIB_RENAME@
1024 # if @REPLACE_RENAME@
1025 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1026 #   undef rename
1027 #   define rename rpl_rename
1028 #  endif
1029 _GL_FUNCDECL_RPL (rename, int,
1030                   (const char *old_filename, const char *new_filename)
1031                   _GL_ARG_NONNULL ((1, 2)));
1032 _GL_CXXALIAS_RPL (rename, int,
1033                   (const char *old_filename, const char *new_filename));
1034 # else
1035 _GL_CXXALIAS_SYS (rename, int,
1036                   (const char *old_filename, const char *new_filename));
1037 # endif
1038 # if __GLIBC__ >= 2
1039 _GL_CXXALIASWARN (rename);
1040 # endif
1041 #elif defined GNULIB_POSIXCHECK
1042 # undef rename
1043 /* Assume rename is always declared.  */
1044 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
1045                  "use gnulib module rename for more portability");
1046 #endif
1047
1048 #if @GNULIB_RENAMEAT@
1049 # if @REPLACE_RENAMEAT@
1050 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1051 #   undef renameat
1052 #   define renameat rpl_renameat
1053 #  endif
1054 _GL_FUNCDECL_RPL (renameat, int,
1055                   (int fd1, char const *file1, int fd2, char const *file2)
1056                   _GL_ARG_NONNULL ((2, 4)));
1057 _GL_CXXALIAS_RPL (renameat, int,
1058                   (int fd1, char const *file1, int fd2, char const *file2));
1059 # else
1060 #  if !@HAVE_RENAMEAT@
1061 _GL_FUNCDECL_SYS (renameat, int,
1062                   (int fd1, char const *file1, int fd2, char const *file2)
1063                   _GL_ARG_NONNULL ((2, 4)));
1064 #  endif
1065 _GL_CXXALIAS_SYS (renameat, int,
1066                   (int fd1, char const *file1, int fd2, char const *file2));
1067 # endif
1068 _GL_CXXALIASWARN (renameat);
1069 #elif defined GNULIB_POSIXCHECK
1070 # undef renameat
1071 # if HAVE_RAW_DECL_RENAMEAT
1072 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
1073                  "use gnulib module renameat for portability");
1074 # endif
1075 #endif
1076
1077 #if @GNULIB_SCANF@
1078 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1079 #  if defined __GNUC__
1080 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1081 #    undef scanf
1082 /* Don't break __attribute__((format(scanf,M,N))).  */
1083 #    define scanf __scanf__
1084 #   endif
1085 _GL_FUNCDECL_RPL_1 (__scanf__, int,
1086                     (const char *format, ...)
1087                     __asm__ (@ASM_SYMBOL_PREFIX@
1088                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1089                     _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1090                     _GL_ARG_NONNULL ((1)));
1091 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
1092 #  else
1093 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1094 #    undef scanf
1095 #    define scanf rpl_scanf
1096 #   endif
1097 _GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
1098                               _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1099                               _GL_ARG_NONNULL ((1)));
1100 _GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
1101 #  endif
1102 # else
1103 _GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
1104 # endif
1105 # if __GLIBC__ >= 2
1106 _GL_CXXALIASWARN (scanf);
1107 # endif
1108 #endif
1109
1110 #if @GNULIB_SNPRINTF@
1111 # if @REPLACE_SNPRINTF@
1112 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1113 #   define snprintf rpl_snprintf
1114 #  endif
1115 _GL_FUNCDECL_RPL (snprintf, int,
1116                   (char *str, size_t size, const char *format, ...)
1117                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1118                   _GL_ARG_NONNULL ((3)));
1119 _GL_CXXALIAS_RPL (snprintf, int,
1120                   (char *str, size_t size, const char *format, ...));
1121 # else
1122 #  if !@HAVE_DECL_SNPRINTF@
1123 _GL_FUNCDECL_SYS (snprintf, int,
1124                   (char *str, size_t size, const char *format, ...)
1125                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1126                   _GL_ARG_NONNULL ((3)));
1127 #  endif
1128 _GL_CXXALIAS_SYS (snprintf, int,
1129                   (char *str, size_t size, const char *format, ...));
1130 # endif
1131 _GL_CXXALIASWARN (snprintf);
1132 #elif defined GNULIB_POSIXCHECK
1133 # undef snprintf
1134 # if HAVE_RAW_DECL_SNPRINTF
1135 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1136                  "use gnulib module snprintf for portability");
1137 # endif
1138 #endif
1139
1140 /* Some people would argue that all sprintf uses should be warned about
1141    (for example, OpenBSD issues a link warning for it),
1142    since it can cause security holes due to buffer overruns.
1143    However, we believe that sprintf can be used safely, and is more
1144    efficient than snprintf in those safe cases; and as proof of our
1145    belief, we use sprintf in several gnulib modules.  So this header
1146    intentionally avoids adding a warning to sprintf except when
1147    GNULIB_POSIXCHECK is defined.  */
1148
1149 #if @GNULIB_SPRINTF_POSIX@
1150 # if @REPLACE_SPRINTF@
1151 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1152 #   define sprintf rpl_sprintf
1153 #  endif
1154 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1155                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1156                                 _GL_ARG_NONNULL ((1, 2)));
1157 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1158 # else
1159 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1160 # endif
1161 # if __GLIBC__ >= 2
1162 _GL_CXXALIASWARN (sprintf);
1163 # endif
1164 #elif defined GNULIB_POSIXCHECK
1165 # undef sprintf
1166 /* Assume sprintf is always declared.  */
1167 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1168                  "use gnulib module sprintf-posix for portable "
1169                  "POSIX compliance");
1170 #endif
1171
1172 #if @GNULIB_TMPFILE@
1173 # if @REPLACE_TMPFILE@
1174 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1175 #   define tmpfile rpl_tmpfile
1176 #  endif
1177 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1178 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1179 # else
1180 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1181 # endif
1182 # if __GLIBC__ >= 2
1183 _GL_CXXALIASWARN (tmpfile);
1184 # endif
1185 #elif defined GNULIB_POSIXCHECK
1186 # undef tmpfile
1187 # if HAVE_RAW_DECL_TMPFILE
1188 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1189                  "use gnulib module tmpfile for portability");
1190 # endif
1191 #endif
1192
1193 #if @GNULIB_VASPRINTF@
1194 /* Write formatted output to a string dynamically allocated with malloc().
1195    If the memory allocation succeeds, store the address of the string in
1196    *RESULT and return the number of resulting bytes, excluding the trailing
1197    NUL.  Upon memory allocation error, or some other error, return -1.  */
1198 # if @REPLACE_VASPRINTF@
1199 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1200 #   define asprintf rpl_asprintf
1201 #  endif
1202 _GL_FUNCDECL_RPL (asprintf, int,
1203                   (char **result, const char *format, ...)
1204                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1205                   _GL_ARG_NONNULL ((1, 2)));
1206 _GL_CXXALIAS_RPL (asprintf, int,
1207                   (char **result, const char *format, ...));
1208 # else
1209 #  if !@HAVE_VASPRINTF@
1210 _GL_FUNCDECL_SYS (asprintf, int,
1211                   (char **result, const char *format, ...)
1212                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1213                   _GL_ARG_NONNULL ((1, 2)));
1214 #  endif
1215 _GL_CXXALIAS_SYS (asprintf, int,
1216                   (char **result, const char *format, ...));
1217 # endif
1218 _GL_CXXALIASWARN (asprintf);
1219 # if @REPLACE_VASPRINTF@
1220 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1221 #   define vasprintf rpl_vasprintf
1222 #  endif
1223 _GL_FUNCDECL_RPL (vasprintf, int,
1224                   (char **result, const char *format, va_list args)
1225                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1226                   _GL_ARG_NONNULL ((1, 2)));
1227 _GL_CXXALIAS_RPL (vasprintf, int,
1228                   (char **result, const char *format, va_list args));
1229 # else
1230 #  if !@HAVE_VASPRINTF@
1231 _GL_FUNCDECL_SYS (vasprintf, int,
1232                   (char **result, const char *format, va_list args)
1233                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1234                   _GL_ARG_NONNULL ((1, 2)));
1235 #  endif
1236 _GL_CXXALIAS_SYS (vasprintf, int,
1237                   (char **result, const char *format, va_list args));
1238 # endif
1239 _GL_CXXALIASWARN (vasprintf);
1240 #endif
1241
1242 #if @GNULIB_VDPRINTF@
1243 # if @REPLACE_VDPRINTF@
1244 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1245 #   define vdprintf rpl_vdprintf
1246 #  endif
1247 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1248                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1249                                  _GL_ARG_NONNULL ((2)));
1250 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1251 # else
1252 #  if !@HAVE_VDPRINTF@
1253 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1254                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1255                                  _GL_ARG_NONNULL ((2)));
1256 #  endif
1257 /* Need to cast, because on Solaris, the third parameter will likely be
1258                                                     __va_list args.  */
1259 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
1260                        (int fd, const char *format, va_list args));
1261 # endif
1262 # if __GLIBC__ >= 2
1263 _GL_CXXALIASWARN (vdprintf);
1264 # endif
1265 #elif defined GNULIB_POSIXCHECK
1266 # undef vdprintf
1267 # if HAVE_RAW_DECL_VDPRINTF
1268 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1269                  "use gnulib module vdprintf for portability");
1270 # endif
1271 #endif
1272
1273 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1274 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1275      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1276 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1277 #   define vfprintf rpl_vfprintf
1278 #  endif
1279 #  define GNULIB_overrides_vfprintf 1
1280 #  if @GNULIB_VFPRINTF_POSIX@
1281 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1282                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1283                                  _GL_ARG_NONNULL ((1, 2)));
1284 #  else
1285 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1286                                  _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1287                                  _GL_ARG_NONNULL ((1, 2)));
1288 #  endif
1289 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1290 # else
1291 /* Need to cast, because on Solaris, the third parameter is
1292                                                       __va_list args
1293    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1294 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1295                        (FILE *fp, const char *format, va_list args));
1296 # endif
1297 # if __GLIBC__ >= 2
1298 _GL_CXXALIASWARN (vfprintf);
1299 # endif
1300 #endif
1301 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1302 # if !GNULIB_overrides_vfprintf
1303 #  undef vfprintf
1304 # endif
1305 /* Assume vfprintf is always declared.  */
1306 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1307                  "use gnulib module vfprintf-posix for portable "
1308                       "POSIX compliance");
1309 #endif
1310
1311 #if @GNULIB_VFSCANF@
1312 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1313 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1314 #   undef vfscanf
1315 #   define vfscanf rpl_vfscanf
1316 #  endif
1317 _GL_FUNCDECL_RPL (vfscanf, int,
1318                   (FILE *stream, const char *format, va_list args)
1319                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1320                   _GL_ARG_NONNULL ((1, 2)));
1321 _GL_CXXALIAS_RPL (vfscanf, int,
1322                   (FILE *stream, const char *format, va_list args));
1323 # else
1324 _GL_CXXALIAS_SYS (vfscanf, int,
1325                   (FILE *stream, const char *format, va_list args));
1326 # endif
1327 _GL_CXXALIASWARN (vfscanf);
1328 #endif
1329
1330 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1331 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1332      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1333 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1334 #   define vprintf rpl_vprintf
1335 #  endif
1336 #  define GNULIB_overrides_vprintf 1
1337 #  if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1338 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1339                                 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1340                                 _GL_ARG_NONNULL ((1)));
1341 #  else
1342 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1343                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1344                                 _GL_ARG_NONNULL ((1)));
1345 #  endif
1346 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1347 # else
1348 /* Need to cast, because on Solaris, the second parameter is
1349                                                           __va_list args
1350    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1351 _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1352 # endif
1353 # if __GLIBC__ >= 2
1354 _GL_CXXALIASWARN (vprintf);
1355 # endif
1356 #endif
1357 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1358 # if !GNULIB_overrides_vprintf
1359 #  undef vprintf
1360 # endif
1361 /* Assume vprintf is always declared.  */
1362 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1363                  "use gnulib module vprintf-posix for portable "
1364                  "POSIX compliance");
1365 #endif
1366
1367 #if @GNULIB_VSCANF@
1368 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1369 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1370 #   undef vscanf
1371 #   define vscanf rpl_vscanf
1372 #  endif
1373 _GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1374                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1375                                _GL_ARG_NONNULL ((1)));
1376 _GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1377 # else
1378 _GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1379 # endif
1380 _GL_CXXALIASWARN (vscanf);
1381 #endif
1382
1383 #if @GNULIB_VSNPRINTF@
1384 # if @REPLACE_VSNPRINTF@
1385 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1386 #   define vsnprintf rpl_vsnprintf
1387 #  endif
1388 _GL_FUNCDECL_RPL (vsnprintf, int,
1389                   (char *str, size_t size, const char *format, va_list args)
1390                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1391                   _GL_ARG_NONNULL ((3)));
1392 _GL_CXXALIAS_RPL (vsnprintf, int,
1393                   (char *str, size_t size, const char *format, va_list args));
1394 # else
1395 #  if !@HAVE_DECL_VSNPRINTF@
1396 _GL_FUNCDECL_SYS (vsnprintf, int,
1397                   (char *str, size_t size, const char *format, va_list args)
1398                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1399                   _GL_ARG_NONNULL ((3)));
1400 #  endif
1401 _GL_CXXALIAS_SYS (vsnprintf, int,
1402                   (char *str, size_t size, const char *format, va_list args));
1403 # endif
1404 _GL_CXXALIASWARN (vsnprintf);
1405 #elif defined GNULIB_POSIXCHECK
1406 # undef vsnprintf
1407 # if HAVE_RAW_DECL_VSNPRINTF
1408 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1409                  "use gnulib module vsnprintf for portability");
1410 # endif
1411 #endif
1412
1413 #if @GNULIB_VSPRINTF_POSIX@
1414 # if @REPLACE_VSPRINTF@
1415 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1416 #   define vsprintf rpl_vsprintf
1417 #  endif
1418 _GL_FUNCDECL_RPL (vsprintf, int,
1419                   (char *str, const char *format, va_list args)
1420                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1421                   _GL_ARG_NONNULL ((1, 2)));
1422 _GL_CXXALIAS_RPL (vsprintf, int,
1423                   (char *str, const char *format, va_list args));
1424 # else
1425 /* Need to cast, because on Solaris, the third parameter is
1426                                                        __va_list args
1427    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1428 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1429                        (char *str, const char *format, va_list args));
1430 # endif
1431 # if __GLIBC__ >= 2
1432 _GL_CXXALIASWARN (vsprintf);
1433 # endif
1434 #elif defined GNULIB_POSIXCHECK
1435 # undef vsprintf
1436 /* Assume vsprintf is always declared.  */
1437 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1438                  "use gnulib module vsprintf-posix for portable "
1439                       "POSIX compliance");
1440 #endif
1441
1442 #endif /* _@GUARD_PREFIX@_STDIO_H */
1443 #endif /* _@GUARD_PREFIX@_STDIO_H */
1444 #endif