lib/stdio.in.h

   1 /* A GNU-like <stdio.h>.
   2
   3    Copyright (C) 2004, 2007-2020 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 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 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 #ifndef _GL_ATTRIBUTE_FORMAT
  66 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || defined __clang__
  67 #  define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
  68 # else
  69 #  define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
  70 # endif
  71 #endif
  72
  73 /* An __attribute__ __format__ specifier for a function that takes a format
  74    string and arguments, where the format string directives are the ones
  75    standardized by ISO C99 and POSIX.
  76    _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD  */
  77 /* __gnu_printf__ is supported in GCC >= 4.4.  */
  78 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  79 # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __gnu_printf__
  80 #else
  81 # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__
  82 #endif
  83
  84 /* An __attribute__ __format__ specifier for a function that takes a format
  85    string and arguments, where the format string directives are the ones of the
  86    system printf(), rather than the ones standardized by ISO C99 and POSIX.
  87    _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM  */
  88 /* On mingw, Gnulib sets __USE_MINGW_ANSI_STDIO in order to get closer to
  89    the standards.  The macro GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU indicates
  90    whether this change is effective.  On older mingw, it is not.  */
  91 #if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
  92 # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD
  93 #else
  94 # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM __printf__
  95 #endif
  96
  97 /* _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD
  98    indicates to GCC that the function takes a format string and arguments,
  99    where the format string directives are the ones standardized by ISO C99
 100    and POSIX.  */
 101 #define _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(formatstring_parameter, first_argument) \
 102   _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, formatstring_parameter, first_argument))
 103
 104 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD,
 105    except that it indicates to GCC that the supported format string directives
 106    are the ones of the system printf(), rather than the ones standardized by
 107    ISO C99 and POSIX.  */
 108 #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
 109   _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, formatstring_parameter, first_argument))
 110
 111 /* _GL_ATTRIBUTE_FORMAT_SCANF
 112    indicates to GCC that the function takes a format string and arguments,
 113    where the format string directives are the ones standardized by ISO C99
 114    and POSIX.  */
 115 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
 116 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
 117    _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
 118 #else
 119 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
 120    _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 121 #endif
 122
 123 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
 124    except that it indicates to GCC that the supported format string directives
 125    are the ones of the system scanf(), rather than the ones standardized by
 126    ISO C99 and POSIX.  */
 127 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
 128   _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 129
 130 /* Solaris 10 and NetBSD 7.0 declare renameat in <unistd.h>, not in <stdio.h>.  */
 131 /* But in any case avoid namespace pollution on glibc systems.  */
 132 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && (defined __sun || defined __NetBSD__) \
 133     && ! defined __GLIBC__
 134 # include <unistd.h>
 135 #endif
 136
 137 /* Android 4.3 declares renameat in <sys/stat.h>, not in <stdio.h>.  */
 138 /* But in any case avoid namespace pollution on glibc systems.  */
 139 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \
 140     && ! defined __GLIBC__
 141 # include <sys/stat.h>
 142 #endif
 143
 144 /* MSVC declares 'perror' in <stdlib.h>, not in <stdio.h>.  We must include
 145    it before we  #define perror rpl_perror.  */
 146 /* But in any case avoid namespace pollution on glibc systems.  */
 147 #if (@GNULIB_PERROR@ || defined GNULIB_POSIXCHECK) \
 148     && (defined _WIN32 && ! defined __CYGWIN__) \
 149     && ! defined __GLIBC__
 150 # include <stdlib.h>
 151 #endif
 152
 153 /* MSVC declares 'remove' in <io.h>, not in <stdio.h>.  We must include
 154    it before we  #define remove rpl_remove.  */
 155 /* MSVC declares 'rename' in <io.h>, not in <stdio.h>.  We must include
 156    it before we  #define rename rpl_rename.  */
 157 /* But in any case avoid namespace pollution on glibc systems.  */
 158 #if (@GNULIB_REMOVE@ || @GNULIB_RENAME@ || defined GNULIB_POSIXCHECK) \
 159     && (defined _WIN32 && ! defined __CYGWIN__) \
 160     && ! defined __GLIBC__
 161 # include <io.h>
 162 #endif
 163
 164
 165 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 166
 167 /* The definition of _GL_ARG_NONNULL is copied here.  */
 168
 169 /* The definition of _GL_WARN_ON_USE is copied here.  */
 170
 171 /* Macros for stringification.  */
 172 #define _GL_STDIO_STRINGIZE(token) #token
 173 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
 174
 175 /* When also using extern inline, suppress the use of static inline in
 176    standard headers of problematic Apple configurations, as Libc at
 177    least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
 178    <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
 179    Perhaps Apple will fix this some day.  */
 180 #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
 181      && defined __GNUC__ && defined __STDC__)
 182 # undef putc_unlocked
 183 #endif
 184
 185 #if @GNULIB_DPRINTF@
 186 # if @REPLACE_DPRINTF@
 187 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 188 #   define dprintf rpl_dprintf
 189 #  endif
 190 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *restrict format, ...)
 191                                 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
 192                                 _GL_ARG_NONNULL ((2)));
 193 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *restrict format, ...));
 194 # else
 195 #  if !@HAVE_DPRINTF@
 196 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *restrict format, ...)
 197                                 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
 198                                 _GL_ARG_NONNULL ((2)));
 199 #  endif
 200 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *restrict format, ...));
 201 # endif
 202 _GL_CXXALIASWARN (dprintf);
 203 #elif defined GNULIB_POSIXCHECK
 204 # undef dprintf
 205 # if HAVE_RAW_DECL_DPRINTF
 206 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
 207                  "use gnulib module dprintf for portability");
 208 # endif
 209 #endif
 210
 211 #if @GNULIB_FCLOSE@
 212 /* Close STREAM and its underlying file descriptor.  */
 213 # if @REPLACE_FCLOSE@
 214 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 215 #   define fclose rpl_fclose
 216 #  endif
 217 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 218 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 219 # else
 220 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 221 # endif
 222 # if __GLIBC__ >= 2
 223 _GL_CXXALIASWARN (fclose);
 224 # endif
 225 #elif defined GNULIB_POSIXCHECK
 226 # undef fclose
 227 /* Assume fclose is always declared.  */
 228 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 229                  "use gnulib module fclose for portable POSIX compliance");
 230 #endif
 231
 232 #if @GNULIB_MDA_FCLOSEALL@
 233 /* On native Windows, map 'fcloseall' to '_fcloseall', so that -loldnames is
 234    not required.  In C++ with GNULIB_NAMESPACE, avoid differences between
 235    platforms by defining GNULIB_NAMESPACE::fcloseall on all platforms that have
 236    it.  */
 237 # if defined _WIN32 && !defined __CYGWIN__
 238 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 239 #   undef fcloseall
 240 #   define fcloseall _fcloseall
 241 #  endif
 242 _GL_CXXALIAS_MDA (fcloseall, int, (void));
 243 # else
 244 #  if @HAVE_DECL_FCLOSEALL@
 245 #   if defined __FreeBSD__
 246 _GL_CXXALIAS_SYS (fcloseall, void, (void));
 247 #   else
 248 _GL_CXXALIAS_SYS (fcloseall, int, (void));
 249 #   endif
 250 #  endif
 251 # endif
 252 # if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCLOSEALL@
 253 _GL_CXXALIASWARN (fcloseall);
 254 # endif
 255 #endif
 256
 257 #if @GNULIB_FDOPEN@
 258 # if @REPLACE_FDOPEN@
 259 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 260 #   undef fdopen
 261 #   define fdopen rpl_fdopen
 262 #  endif
 263 _GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
 264                                   _GL_ARG_NONNULL ((2)));
 265 _GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
 266 # elif defined _WIN32 && !defined __CYGWIN__
 267 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 268 #   undef fdopen
 269 #   define fdopen _fdopen
 270 #  endif
 271 _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode));
 272 # else
 273 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
 274 # endif
 275 _GL_CXXALIASWARN (fdopen);
 276 #elif defined GNULIB_POSIXCHECK
 277 # undef fdopen
 278 /* Assume fdopen is always declared.  */
 279 _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
 280                  "use gnulib module fdopen for portability");
 281 #elif @GNULIB_MDA_FDOPEN@
 282 /* On native Windows, map 'fdopen' to '_fdopen', so that -loldnames is not
 283    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
 284    platforms by defining GNULIB_NAMESPACE::fdopen always.  */
 285 # if defined _WIN32 && !defined __CYGWIN__
 286 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 287 #   undef fdopen
 288 #   define fdopen _fdopen
 289 #  endif
 290 _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode));
 291 # else
 292 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
 293 # endif
 294 _GL_CXXALIASWARN (fdopen);
 295 #endif
 296
 297 #if @GNULIB_FFLUSH@
 298 /* Flush all pending data on STREAM according to POSIX rules.  Both
 299    output and seekable input streams are supported.
 300    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 301    that is _not_seekable_ or on an update stream that is _not_seekable_
 302    and in which the most recent operation was input.  Seekability can
 303    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 304 # if @REPLACE_FFLUSH@
 305 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 306 #   define fflush rpl_fflush
 307 #  endif
 308 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 309 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 310 # else
 311 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 312 # endif
 313 # if __GLIBC__ >= 2
 314 _GL_CXXALIASWARN (fflush);
 315 # endif
 316 #elif defined GNULIB_POSIXCHECK
 317 # undef fflush
 318 /* Assume fflush is always declared.  */
 319 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 320                  "use gnulib module fflush for portable POSIX compliance");
 321 #endif
 322
 323 #if @GNULIB_FGETC@
 324 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 325 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 326 #   undef fgetc
 327 #   define fgetc rpl_fgetc
 328 #  endif
 329 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 330 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
 331 # else
 332 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
 333 # endif
 334 # if __GLIBC__ >= 2
 335 _GL_CXXALIASWARN (fgetc);
 336 # endif
 337 #endif
 338
 339 #if @GNULIB_FGETS@
 340 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 341 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 342 #   undef fgets
 343 #   define fgets rpl_fgets
 344 #  endif
 345 _GL_FUNCDECL_RPL (fgets, char *,
 346                   (char *restrict s, int n, FILE *restrict stream)
 347                   _GL_ARG_NONNULL ((1, 3)));
 348 _GL_CXXALIAS_RPL (fgets, char *,
 349                   (char *restrict s, int n, FILE *restrict stream));
 350 # else
 351 _GL_CXXALIAS_SYS (fgets, char *,
 352                   (char *restrict s, int n, FILE *restrict stream));
 353 # endif
 354 # if __GLIBC__ >= 2
 355 _GL_CXXALIASWARN (fgets);
 356 # endif
 357 #endif
 358
 359 #if @GNULIB_MDA_FILENO@
 360 /* On native Windows, map 'fileno' to '_fileno', so that -loldnames is not
 361    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
 362    platforms by defining GNULIB_NAMESPACE::fileno always.  */
 363 # if defined _WIN32 && !defined __CYGWIN__
 364 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 365 #   undef fileno
 366 #   define fileno _fileno
 367 #  endif
 368 _GL_CXXALIAS_MDA (fileno, int, (FILE *restrict stream));
 369 # else
 370 _GL_CXXALIAS_SYS (fileno, int, (FILE *restrict stream));
 371 # endif
 372 _GL_CXXALIASWARN (fileno);
 373 #endif
 374
 375 #if @GNULIB_FOPEN@
 376 # if @REPLACE_FOPEN@
 377 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 378 #   undef fopen
 379 #   define fopen rpl_fopen
 380 #  endif
 381 _GL_FUNCDECL_RPL (fopen, FILE *,
 382                   (const char *restrict filename, const char *restrict mode)
 383                   _GL_ARG_NONNULL ((1, 2)));
 384 _GL_CXXALIAS_RPL (fopen, FILE *,
 385                   (const char *restrict filename, const char *restrict mode));
 386 # else
 387 _GL_CXXALIAS_SYS (fopen, FILE *,
 388                   (const char *restrict filename, const char *restrict mode));
 389 # endif
 390 # if __GLIBC__ >= 2
 391 _GL_CXXALIASWARN (fopen);
 392 # endif
 393 #elif defined GNULIB_POSIXCHECK
 394 # undef fopen
 395 /* Assume fopen is always declared.  */
 396 _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
 397                  "use gnulib module fopen for portability");
 398 #endif
 399
 400 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 401 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 402      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 403 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 404 #   define fprintf rpl_fprintf
 405 #  endif
 406 #  define GNULIB_overrides_fprintf 1
 407 #  if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 408 _GL_FUNCDECL_RPL (fprintf, int,
 409                   (FILE *restrict fp, const char *restrict format, ...)
 410                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
 411                   _GL_ARG_NONNULL ((1, 2)));
 412 #  else
 413 _GL_FUNCDECL_RPL (fprintf, int,
 414                   (FILE *restrict fp, const char *restrict format, ...)
 415                   _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
 416                   _GL_ARG_NONNULL ((1, 2)));
 417 #  endif
 418 _GL_CXXALIAS_RPL (fprintf, int,
 419                   (FILE *restrict fp, const char *restrict format, ...));
 420 # else
 421 _GL_CXXALIAS_SYS (fprintf, int,
 422                   (FILE *restrict fp, const char *restrict format, ...));
 423 # endif
 424 # if __GLIBC__ >= 2
 425 _GL_CXXALIASWARN (fprintf);
 426 # endif
 427 #endif
 428 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 429 # if !GNULIB_overrides_fprintf
 430 #  undef fprintf
 431 # endif
 432 /* Assume fprintf is always declared.  */
 433 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 434                  "use gnulib module fprintf-posix for portable "
 435                  "POSIX compliance");
 436 #endif
 437
 438 #if @GNULIB_FPURGE@
 439 /* Discard all pending buffered I/O data on STREAM.
 440    STREAM must not be wide-character oriented.
 441    When discarding pending output, the file position is set back to where it
 442    was before the write calls.  When discarding pending input, the file
 443    position is advanced to match the end of the previously read input.
 444    Return 0 if successful.  Upon error, return -1 and set errno.  */
 445 # if @REPLACE_FPURGE@
 446 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 447 #   define fpurge rpl_fpurge
 448 #  endif
 449 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 450 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 451 # else
 452 #  if !@HAVE_DECL_FPURGE@
 453 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 454 #  endif
 455 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 456 # endif
 457 _GL_CXXALIASWARN (fpurge);
 458 #elif defined GNULIB_POSIXCHECK
 459 # undef fpurge
 460 # if HAVE_RAW_DECL_FPURGE
 461 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 462                  "use gnulib module fpurge for portability");
 463 # endif
 464 #endif
 465
 466 #if @GNULIB_FPUTC@
 467 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 468 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 469 #   undef fputc
 470 #   define fputc rpl_fputc
 471 #  endif
 472 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 473 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 474 # else
 475 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 476 # endif
 477 # if __GLIBC__ >= 2
 478 _GL_CXXALIASWARN (fputc);
 479 # endif
 480 #endif
 481
 482 #if @GNULIB_FPUTS@
 483 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 484 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 485 #   undef fputs
 486 #   define fputs rpl_fputs
 487 #  endif
 488 _GL_FUNCDECL_RPL (fputs, int,
 489                   (const char *restrict string, FILE *restrict stream)
 490                   _GL_ARG_NONNULL ((1, 2)));
 491 _GL_CXXALIAS_RPL (fputs, int,
 492                   (const char *restrict string, FILE *restrict stream));
 493 # else
 494 _GL_CXXALIAS_SYS (fputs, int,
 495                   (const char *restrict string, FILE *restrict stream));
 496 # endif
 497 # if __GLIBC__ >= 2
 498 _GL_CXXALIASWARN (fputs);
 499 # endif
 500 #endif
 501
 502 #if @GNULIB_FREAD@
 503 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 504 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 505 #   undef fread
 506 #   define fread rpl_fread
 507 #  endif
 508 _GL_FUNCDECL_RPL (fread, size_t,
 509                   (void *restrict ptr, size_t s, size_t n,
 510                    FILE *restrict stream)
 511                   _GL_ARG_NONNULL ((4)));
 512 _GL_CXXALIAS_RPL (fread, size_t,
 513                   (void *restrict ptr, size_t s, size_t n,
 514                    FILE *restrict stream));
 515 # else
 516 _GL_CXXALIAS_SYS (fread, size_t,
 517                   (void *restrict ptr, size_t s, size_t n,
 518                    FILE *restrict stream));
 519 # endif
 520 # if __GLIBC__ >= 2
 521 _GL_CXXALIASWARN (fread);
 522 # endif
 523 #endif
 524
 525 #if @GNULIB_FREOPEN@
 526 # if @REPLACE_FREOPEN@
 527 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 528 #   undef freopen
 529 #   define freopen rpl_freopen
 530 #  endif
 531 _GL_FUNCDECL_RPL (freopen, FILE *,
 532                   (const char *restrict filename, const char *restrict mode,
 533                    FILE *restrict stream)
 534                   _GL_ARG_NONNULL ((2, 3)));
 535 _GL_CXXALIAS_RPL (freopen, FILE *,
 536                   (const char *restrict filename, const char *restrict mode,
 537                    FILE *restrict stream));
 538 # else
 539 _GL_CXXALIAS_SYS (freopen, FILE *,
 540                   (const char *restrict filename, const char *restrict mode,
 541                    FILE *restrict stream));
 542 # endif
 543 # if __GLIBC__ >= 2
 544 _GL_CXXALIASWARN (freopen);
 545 # endif
 546 #elif defined GNULIB_POSIXCHECK
 547 # undef freopen
 548 /* Assume freopen is always declared.  */
 549 _GL_WARN_ON_USE (freopen,
 550                  "freopen on native Windows platforms is not POSIX compliant - "
 551                  "use gnulib module freopen for portability");
 552 #endif
 553
 554 #if @GNULIB_FSCANF@
 555 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 556 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 557 #   undef fscanf
 558 #   define fscanf rpl_fscanf
 559 #  endif
 560 _GL_FUNCDECL_RPL (fscanf, int,
 561                   (FILE *restrict stream, const char *restrict format, ...)
 562                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
 563                   _GL_ARG_NONNULL ((1, 2)));
 564 _GL_CXXALIAS_RPL (fscanf, int,
 565                   (FILE *restrict stream, const char *restrict format, ...));
 566 # else
 567 _GL_CXXALIAS_SYS (fscanf, int,
 568                   (FILE *restrict stream, const char *restrict format, ...));
 569 # endif
 570 # if __GLIBC__ >= 2
 571 _GL_CXXALIASWARN (fscanf);
 572 # endif
 573 #endif
 574
 575
 576 /* Set up the following warnings, based on which modules are in use.
 577    GNU Coding Standards discourage the use of fseek, since it imposes
 578    an arbitrary limitation on some 32-bit hosts.  Remember that the
 579    fseek module depends on the fseeko module, so we only have three
 580    cases to consider:
 581
 582    1. The developer is not using either module.  Issue a warning under
 583    GNULIB_POSIXCHECK for both functions, to remind them that both
 584    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 585    impact on this warning.
 586
 587    2. The developer is using both modules.  They may be unaware of the
 588    arbitrary limitations of fseek, so issue a warning under
 589    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 590    modules intentionally, so the developer can define
 591    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 592    is safe, to silence the warning.
 593
 594    3. The developer is using the fseeko module, but not fseek.  Gnulib
 595    guarantees that fseek will still work around platform bugs in that
 596    case, but we presume that the developer is aware of the pitfalls of
 597    fseek and was trying to avoid it, so issue a warning even when
 598    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 599    defined to silence the warning in particular compilation units.
 600    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 601    fseek gets defined as a macro, it is recommended that the developer
 602    uses the fseek module, even if he is not calling the fseek function.
 603
 604    Most gnulib clients that perform stream operations should fall into
 605    category 3.  */
 606
 607 #if @GNULIB_FSEEK@
 608 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 609 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 610 #  undef fseek
 611 # endif
 612 # if @REPLACE_FSEEK@
 613 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 614 #   undef fseek
 615 #   define fseek rpl_fseek
 616 #  endif
 617 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 618                               _GL_ARG_NONNULL ((1)));
 619 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 620 # else
 621 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 622 # endif
 623 # if __GLIBC__ >= 2
 624 _GL_CXXALIASWARN (fseek);
 625 # endif
 626 #endif
 627
 628 #if @GNULIB_FSEEKO@
 629 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 630 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 631 #  undef fseek
 632 # endif
 633 # if @REPLACE_FSEEKO@
 634 /* Provide an fseeko function that is aware of a preceding fflush(), and which
 635    detects pipes.  */
 636 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 637 #   undef fseeko
 638 #   define fseeko rpl_fseeko
 639 #  endif
 640 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 641                                _GL_ARG_NONNULL ((1)));
 642 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 643 # else
 644 #  if ! @HAVE_DECL_FSEEKO@
 645 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
 646                                _GL_ARG_NONNULL ((1)));
 647 #  endif
 648 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 649 # endif
 650 _GL_CXXALIASWARN (fseeko);
 651 #elif defined GNULIB_POSIXCHECK
 652 # define _GL_FSEEK_WARN /* Category 1, above.  */
 653 # undef fseek
 654 # undef fseeko
 655 # if HAVE_RAW_DECL_FSEEKO
 656 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 657                  "use gnulib module fseeko for portability");
 658 # endif
 659 #endif
 660
 661 #ifdef _GL_FSEEK_WARN
 662 # undef _GL_FSEEK_WARN
 663 /* Here, either fseek is undefined (but C89 guarantees that it is
 664    declared), or it is defined as rpl_fseek (declared above).  */
 665 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 666                  "on 32-bit platforms - "
 667                  "use fseeko function for handling of large files");
 668 #endif
 669
 670
 671 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 672
 673 #if @GNULIB_FTELL@
 674 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 675 #  define _GL_FTELL_WARN /* Category 2, above.  */
 676 #  undef ftell
 677 # endif
 678 # if @REPLACE_FTELL@
 679 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 680 #   undef ftell
 681 #   define ftell rpl_ftell
 682 #  endif
 683 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 684 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 685 # else
 686 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 687 # endif
 688 # if __GLIBC__ >= 2
 689 _GL_CXXALIASWARN (ftell);
 690 # endif
 691 #endif
 692
 693 #if @GNULIB_FTELLO@
 694 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 695 #  define _GL_FTELL_WARN /* Category 3, above.  */
 696 #  undef ftell
 697 # endif
 698 # if @REPLACE_FTELLO@
 699 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 700 #   undef ftello
 701 #   define ftello rpl_ftello
 702 #  endif
 703 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 704 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 705 # else
 706 #  if ! @HAVE_DECL_FTELLO@
 707 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 708 #  endif
 709 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 710 # endif
 711 _GL_CXXALIASWARN (ftello);
 712 #elif defined GNULIB_POSIXCHECK
 713 # define _GL_FTELL_WARN /* Category 1, above.  */
 714 # undef ftell
 715 # undef ftello
 716 # if HAVE_RAW_DECL_FTELLO
 717 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 718                  "use gnulib module ftello for portability");
 719 # endif
 720 #endif
 721
 722 #ifdef _GL_FTELL_WARN
 723 # undef _GL_FTELL_WARN
 724 /* Here, either ftell is undefined (but C89 guarantees that it is
 725    declared), or it is defined as rpl_ftell (declared above).  */
 726 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 727                  "on 32-bit platforms - "
 728                  "use ftello function for handling of large files");
 729 #endif
 730
 731
 732 #if @GNULIB_FWRITE@
 733 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 734 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 735 #   undef fwrite
 736 #   define fwrite rpl_fwrite
 737 #  endif
 738 _GL_FUNCDECL_RPL (fwrite, size_t,
 739                   (const void *restrict ptr, size_t s, size_t n,
 740                    FILE *restrict stream)
 741                   _GL_ARG_NONNULL ((1, 4)));
 742 _GL_CXXALIAS_RPL (fwrite, size_t,
 743                   (const void *restrict ptr, size_t s, size_t n,
 744                    FILE *restrict stream));
 745 # else
 746 _GL_CXXALIAS_SYS (fwrite, size_t,
 747                   (const void *restrict ptr, size_t s, size_t n,
 748                    FILE *restrict stream));
 749
 750 /* Work around bug 11959 when fortifying glibc 2.4 through 2.15
 751    <https://sourceware.org/bugzilla/show_bug.cgi?id=11959>,
 752    which sometimes causes an unwanted diagnostic for fwrite calls.
 753    This affects only function declaration attributes under certain
 754    versions of gcc and clang, and is not needed for C++.  */
 755 #  if (0 < __USE_FORTIFY_LEVEL                                          \
 756        && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
 757        && 3 < __GNUC__ + (4 <= __GNUC_MINOR__)                          \
 758        && !defined __cplusplus)
 759 #   undef fwrite
 760 #   undef fwrite_unlocked
 761 extern size_t __REDIRECT (rpl_fwrite,
 762                           (const void *__restrict, size_t, size_t,
 763                            FILE *__restrict),
 764                           fwrite);
 765 extern size_t __REDIRECT (rpl_fwrite_unlocked,
 766                           (const void *__restrict, size_t, size_t,
 767                            FILE *__restrict),
 768                           fwrite_unlocked);
 769 #   define fwrite rpl_fwrite
 770 #   define fwrite_unlocked rpl_fwrite_unlocked
 771 #  endif
 772 # endif
 773 # if __GLIBC__ >= 2
 774 _GL_CXXALIASWARN (fwrite);
 775 # endif
 776 #endif
 777
 778 #if @GNULIB_GETC@
 779 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 780 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 781 #   undef getc
 782 #   define getc rpl_fgetc
 783 #  endif
 784 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 785 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
 786 # else
 787 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
 788 # endif
 789 # if __GLIBC__ >= 2
 790 _GL_CXXALIASWARN (getc);
 791 # endif
 792 #endif
 793
 794 #if @GNULIB_GETCHAR@
 795 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 796 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 797 #   undef getchar
 798 #   define getchar rpl_getchar
 799 #  endif
 800 _GL_FUNCDECL_RPL (getchar, int, (void));
 801 _GL_CXXALIAS_RPL (getchar, int, (void));
 802 # else
 803 _GL_CXXALIAS_SYS (getchar, int, (void));
 804 # endif
 805 # if __GLIBC__ >= 2
 806 _GL_CXXALIASWARN (getchar);
 807 # endif
 808 #endif
 809
 810 #if @GNULIB_GETDELIM@
 811 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 812    STREAM, store it in *LINEPTR (and NUL-terminate it).
 813    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 814    bytes of space.  It is realloc'd as necessary.
 815    Return the number of bytes read and stored at *LINEPTR (not including the
 816    NUL terminator), or -1 on error or EOF.  */
 817 # if @REPLACE_GETDELIM@
 818 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 819 #   undef getdelim
 820 #   define getdelim rpl_getdelim
 821 #  endif
 822 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 823                   (char **restrict lineptr, size_t *restrict linesize,
 824                    int delimiter,
 825                    FILE *restrict stream)
 826                   _GL_ARG_NONNULL ((1, 2, 4)));
 827 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 828                   (char **restrict lineptr, size_t *restrict linesize,
 829                    int delimiter,
 830                    FILE *restrict stream));
 831 # else
 832 #  if !@HAVE_DECL_GETDELIM@
 833 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 834                   (char **restrict lineptr, size_t *restrict linesize,
 835                    int delimiter,
 836                    FILE *restrict stream)
 837                   _GL_ARG_NONNULL ((1, 2, 4)));
 838 #  endif
 839 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 840                   (char **restrict lineptr, size_t *restrict linesize,
 841                    int delimiter,
 842                    FILE *restrict stream));
 843 # endif
 844 _GL_CXXALIASWARN (getdelim);
 845 #elif defined GNULIB_POSIXCHECK
 846 # undef getdelim
 847 # if HAVE_RAW_DECL_GETDELIM
 848 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 849                  "use gnulib module getdelim for portability");
 850 # endif
 851 #endif
 852
 853 #if @GNULIB_GETLINE@
 854 /* Read a line, up to (and including) the next newline, from STREAM, store it
 855    in *LINEPTR (and NUL-terminate it).
 856    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 857    bytes of space.  It is realloc'd as necessary.
 858    Return the number of bytes read and stored at *LINEPTR (not including the
 859    NUL terminator), or -1 on error or EOF.  */
 860 # if @REPLACE_GETLINE@
 861 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 862 #   undef getline
 863 #   define getline rpl_getline
 864 #  endif
 865 _GL_FUNCDECL_RPL (getline, ssize_t,
 866                   (char **restrict lineptr, size_t *restrict linesize,
 867                    FILE *restrict stream)
 868                   _GL_ARG_NONNULL ((1, 2, 3)));
 869 _GL_CXXALIAS_RPL (getline, ssize_t,
 870                   (char **restrict lineptr, size_t *restrict linesize,
 871                    FILE *restrict stream));
 872 # else
 873 #  if !@HAVE_DECL_GETLINE@
 874 _GL_FUNCDECL_SYS (getline, ssize_t,
 875                   (char **restrict lineptr, size_t *restrict linesize,
 876                    FILE *restrict stream)
 877                   _GL_ARG_NONNULL ((1, 2, 3)));
 878 #  endif
 879 _GL_CXXALIAS_SYS (getline, ssize_t,
 880                   (char **restrict lineptr, size_t *restrict linesize,
 881                    FILE *restrict stream));
 882 # endif
 883 # if @HAVE_DECL_GETLINE@
 884 _GL_CXXALIASWARN (getline);
 885 # endif
 886 #elif defined GNULIB_POSIXCHECK
 887 # undef getline
 888 # if HAVE_RAW_DECL_GETLINE
 889 _GL_WARN_ON_USE (getline, "getline is unportable - "
 890                  "use gnulib module getline for portability");
 891 # endif
 892 #endif
 893
 894 /* It is very rare that the developer ever has full control of stdin,
 895    so any use of gets warrants an unconditional warning; besides, C11
 896    removed it.  */
 897 #undef gets
 898 #if HAVE_RAW_DECL_GETS && !defined __cplusplus
 899 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 900 #endif
 901
 902 #if @GNULIB_MDA_GETW@
 903 /* On native Windows, map 'getw' to '_getw', so that -loldnames is not
 904    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
 905    platforms by defining GNULIB_NAMESPACE::getw always.  */
 906 # if defined _WIN32 && !defined __CYGWIN__
 907 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 908 #   undef getw
 909 #   define getw _getw
 910 #  endif
 911 _GL_CXXALIAS_MDA (getw, int, (FILE *restrict stream));
 912 # else
 913 _GL_CXXALIAS_SYS (getw, int, (FILE *restrict stream));
 914 # endif
 915 _GL_CXXALIASWARN (getw);
 916 #endif
 917
 918 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 919 struct obstack;
 920 /* Grow an obstack with formatted output.  Return the number of
 921    bytes added to OBS.  No trailing nul byte is added, and the
 922    object should be closed with obstack_finish before use.  Upon
 923    memory allocation error, call obstack_alloc_failed_handler.  Upon
 924    other error, return -1.  */
 925 # if @REPLACE_OBSTACK_PRINTF@
 926 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 927 #   define obstack_printf rpl_obstack_printf
 928 #  endif
 929 _GL_FUNCDECL_RPL (obstack_printf, int,
 930                   (struct obstack *obs, const char *format, ...)
 931                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
 932                   _GL_ARG_NONNULL ((1, 2)));
 933 _GL_CXXALIAS_RPL (obstack_printf, int,
 934                   (struct obstack *obs, const char *format, ...));
 935 # else
 936 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 937 _GL_FUNCDECL_SYS (obstack_printf, int,
 938                   (struct obstack *obs, const char *format, ...)
 939                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
 940                   _GL_ARG_NONNULL ((1, 2)));
 941 #  endif
 942 _GL_CXXALIAS_SYS (obstack_printf, int,
 943                   (struct obstack *obs, const char *format, ...));
 944 # endif
 945 _GL_CXXALIASWARN (obstack_printf);
 946 # if @REPLACE_OBSTACK_PRINTF@
 947 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 948 #   define obstack_vprintf rpl_obstack_vprintf
 949 #  endif
 950 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 951                   (struct obstack *obs, const char *format, va_list args)
 952                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
 953                   _GL_ARG_NONNULL ((1, 2)));
 954 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 955                   (struct obstack *obs, const char *format, va_list args));
 956 # else
 957 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 958 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 959                   (struct obstack *obs, const char *format, va_list args)
 960                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
 961                   _GL_ARG_NONNULL ((1, 2)));
 962 #  endif
 963 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 964                   (struct obstack *obs, const char *format, va_list args));
 965 # endif
 966 _GL_CXXALIASWARN (obstack_vprintf);
 967 #endif
 968
 969 #if @GNULIB_PCLOSE@
 970 # if !@HAVE_PCLOSE@
 971 _GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 972 # endif
 973 _GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
 974 _GL_CXXALIASWARN (pclose);
 975 #elif defined GNULIB_POSIXCHECK
 976 # undef pclose
 977 # if HAVE_RAW_DECL_PCLOSE
 978 _GL_WARN_ON_USE (pclose, "pclose is unportable - "
 979                  "use gnulib module pclose for more portability");
 980 # endif
 981 #endif
 982
 983 #if @GNULIB_PERROR@
 984 /* Print a message to standard error, describing the value of ERRNO,
 985    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 986    and terminated with a newline.  */
 987 # if @REPLACE_PERROR@
 988 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 989 #   define perror rpl_perror
 990 #  endif
 991 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 992 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 993 # else
 994 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 995 # endif
 996 # if __GLIBC__ >= 2
 997 _GL_CXXALIASWARN (perror);
 998 # endif
 999 #elif defined GNULIB_POSIXCHECK
1000 # undef perror
1001 /* Assume perror is always declared.  */
1002 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
1003                  "use gnulib module perror for portability");
1004 #endif
1005
1006 #if @GNULIB_POPEN@
1007 # if @REPLACE_POPEN@
1008 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1009 #   undef popen
1010 #   define popen rpl_popen
1011 #  endif
1012 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
1013                                  _GL_ARG_NONNULL ((1, 2)));
1014 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
1015 # else
1016 #  if !@HAVE_POPEN@
1017 _GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
1018                                  _GL_ARG_NONNULL ((1, 2)));
1019 #  endif
1020 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
1021 # endif
1022 _GL_CXXALIASWARN (popen);
1023 #elif defined GNULIB_POSIXCHECK
1024 # undef popen
1025 # if HAVE_RAW_DECL_POPEN
1026 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
1027                  "use gnulib module popen or pipe for more portability");
1028 # endif
1029 #endif
1030
1031 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
1032 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
1033      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1034 #  if defined __GNUC__ || defined __clang__
1035 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1036 /* Don't break __attribute__((format(printf,M,N))).  */
1037 #    define printf __printf__
1038 #   endif
1039 #   if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1040 _GL_FUNCDECL_RPL_1 (__printf__, int,
1041                     (const char *restrict format, ...)
1042                     __asm__ (@ASM_SYMBOL_PREFIX@
1043                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
1044                     _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2)
1045                     _GL_ARG_NONNULL ((1)));
1046 #   else
1047 _GL_FUNCDECL_RPL_1 (__printf__, int,
1048                     (const char *restrict format, ...)
1049                     __asm__ (@ASM_SYMBOL_PREFIX@
1050                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
1051                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
1052                     _GL_ARG_NONNULL ((1)));
1053 #   endif
1054 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
1055 #  else
1056 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1057 #    define printf rpl_printf
1058 #   endif
1059 _GL_FUNCDECL_RPL (printf, int,
1060                   (const char *restrict format, ...)
1061                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2)
1062                   _GL_ARG_NONNULL ((1)));
1063 _GL_CXXALIAS_RPL (printf, int, (const char *restrict format, ...));
1064 #  endif
1065 #  define GNULIB_overrides_printf 1
1066 # else
1067 _GL_CXXALIAS_SYS (printf, int, (const char *restrict format, ...));
1068 # endif
1069 # if __GLIBC__ >= 2
1070 _GL_CXXALIASWARN (printf);
1071 # endif
1072 #endif
1073 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1074 # if !GNULIB_overrides_printf
1075 #  undef printf
1076 # endif
1077 /* Assume printf is always declared.  */
1078 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
1079                  "use gnulib module printf-posix for portable "
1080                  "POSIX compliance");
1081 #endif
1082
1083 #if @GNULIB_PUTC@
1084 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1085 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1086 #   undef putc
1087 #   define putc rpl_fputc
1088 #  endif
1089 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
1090 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
1091 # else
1092 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
1093 # endif
1094 # if __GLIBC__ >= 2
1095 _GL_CXXALIASWARN (putc);
1096 # endif
1097 #endif
1098
1099 #if @GNULIB_PUTCHAR@
1100 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1101 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1102 #   undef putchar
1103 #   define putchar rpl_putchar
1104 #  endif
1105 _GL_FUNCDECL_RPL (putchar, int, (int c));
1106 _GL_CXXALIAS_RPL (putchar, int, (int c));
1107 # else
1108 _GL_CXXALIAS_SYS (putchar, int, (int c));
1109 # endif
1110 # if __GLIBC__ >= 2
1111 _GL_CXXALIASWARN (putchar);
1112 # endif
1113 #endif
1114
1115 #if @GNULIB_PUTS@
1116 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1117 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1118 #   undef puts
1119 #   define puts rpl_puts
1120 #  endif
1121 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
1122 _GL_CXXALIAS_RPL (puts, int, (const char *string));
1123 # else
1124 _GL_CXXALIAS_SYS (puts, int, (const char *string));
1125 # endif
1126 # if __GLIBC__ >= 2
1127 _GL_CXXALIASWARN (puts);
1128 # endif
1129 #endif
1130
1131 #if @GNULIB_MDA_PUTW@
1132 /* On native Windows, map 'putw' to '_putw', so that -loldnames is not
1133    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
1134    platforms by defining GNULIB_NAMESPACE::putw always.  */
1135 # if defined _WIN32 && !defined __CYGWIN__
1136 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1137 #   undef putw
1138 #   define putw _putw
1139 #  endif
1140 _GL_CXXALIAS_MDA (putw, int, (int w, FILE *restrict stream));
1141 # else
1142 _GL_CXXALIAS_SYS (putw, int, (int w, FILE *restrict stream));
1143 # endif
1144 _GL_CXXALIASWARN (putw);
1145 #endif
1146
1147 #if @GNULIB_REMOVE@
1148 # if @REPLACE_REMOVE@
1149 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1150 #   undef remove
1151 #   define remove rpl_remove
1152 #  endif
1153 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
1154 _GL_CXXALIAS_RPL (remove, int, (const char *name));
1155 # else
1156 _GL_CXXALIAS_SYS (remove, int, (const char *name));
1157 # endif
1158 # if __GLIBC__ >= 2
1159 _GL_CXXALIASWARN (remove);
1160 # endif
1161 #elif defined GNULIB_POSIXCHECK
1162 # undef remove
1163 /* Assume remove is always declared.  */
1164 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
1165                  "use gnulib module remove for more portability");
1166 #endif
1167
1168 #if @GNULIB_RENAME@
1169 # if @REPLACE_RENAME@
1170 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1171 #   undef rename
1172 #   define rename rpl_rename
1173 #  endif
1174 _GL_FUNCDECL_RPL (rename, int,
1175                   (const char *old_filename, const char *new_filename)
1176                   _GL_ARG_NONNULL ((1, 2)));
1177 _GL_CXXALIAS_RPL (rename, int,
1178                   (const char *old_filename, const char *new_filename));
1179 # else
1180 _GL_CXXALIAS_SYS (rename, int,
1181                   (const char *old_filename, const char *new_filename));
1182 # endif
1183 # if __GLIBC__ >= 2
1184 _GL_CXXALIASWARN (rename);
1185 # endif
1186 #elif defined GNULIB_POSIXCHECK
1187 # undef rename
1188 /* Assume rename is always declared.  */
1189 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
1190                  "use gnulib module rename for more portability");
1191 #endif
1192
1193 #if @GNULIB_RENAMEAT@
1194 # if @REPLACE_RENAMEAT@
1195 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1196 #   undef renameat
1197 #   define renameat rpl_renameat
1198 #  endif
1199 _GL_FUNCDECL_RPL (renameat, int,
1200                   (int fd1, char const *file1, int fd2, char const *file2)
1201                   _GL_ARG_NONNULL ((2, 4)));
1202 _GL_CXXALIAS_RPL (renameat, int,
1203                   (int fd1, char const *file1, int fd2, char const *file2));
1204 # else
1205 #  if !@HAVE_RENAMEAT@
1206 _GL_FUNCDECL_SYS (renameat, int,
1207                   (int fd1, char const *file1, int fd2, char const *file2)
1208                   _GL_ARG_NONNULL ((2, 4)));
1209 #  endif
1210 _GL_CXXALIAS_SYS (renameat, int,
1211                   (int fd1, char const *file1, int fd2, char const *file2));
1212 # endif
1213 _GL_CXXALIASWARN (renameat);
1214 #elif defined GNULIB_POSIXCHECK
1215 # undef renameat
1216 # if HAVE_RAW_DECL_RENAMEAT
1217 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
1218                  "use gnulib module renameat for portability");
1219 # endif
1220 #endif
1221
1222 #if @GNULIB_SCANF@
1223 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1224 #  if defined __GNUC__ || defined __clang__
1225 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1226 #    undef scanf
1227 /* Don't break __attribute__((format(scanf,M,N))).  */
1228 #    define scanf __scanf__
1229 #   endif
1230 _GL_FUNCDECL_RPL_1 (__scanf__, int,
1231                     (const char *restrict format, ...)
1232                     __asm__ (@ASM_SYMBOL_PREFIX@
1233                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1234                     _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1235                     _GL_ARG_NONNULL ((1)));
1236 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *restrict format, ...));
1237 #  else
1238 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1239 #    undef scanf
1240 #    define scanf rpl_scanf
1241 #   endif
1242 _GL_FUNCDECL_RPL (scanf, int, (const char *restrict format, ...)
1243                               _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1244                               _GL_ARG_NONNULL ((1)));
1245 _GL_CXXALIAS_RPL (scanf, int, (const char *restrict format, ...));
1246 #  endif
1247 # else
1248 _GL_CXXALIAS_SYS (scanf, int, (const char *restrict format, ...));
1249 # endif
1250 # if __GLIBC__ >= 2
1251 _GL_CXXALIASWARN (scanf);
1252 # endif
1253 #endif
1254
1255 #if @GNULIB_SNPRINTF@
1256 # if @REPLACE_SNPRINTF@
1257 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1258 #   define snprintf rpl_snprintf
1259 #  endif
1260 _GL_FUNCDECL_RPL (snprintf, int,
1261                   (char *restrict str, size_t size,
1262                    const char *restrict format, ...)
1263                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4)
1264                   _GL_ARG_NONNULL ((3)));
1265 _GL_CXXALIAS_RPL (snprintf, int,
1266                   (char *restrict str, size_t size,
1267                    const char *restrict format, ...));
1268 # else
1269 #  if !@HAVE_DECL_SNPRINTF@
1270 _GL_FUNCDECL_SYS (snprintf, int,
1271                   (char *restrict str, size_t size,
1272                    const char *restrict format, ...)
1273                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4)
1274                   _GL_ARG_NONNULL ((3)));
1275 #  endif
1276 _GL_CXXALIAS_SYS (snprintf, int,
1277                   (char *restrict str, size_t size,
1278                    const char *restrict format, ...));
1279 # endif
1280 # if __GLIBC__ >= 2
1281 _GL_CXXALIASWARN (snprintf);
1282 # endif
1283 #elif defined GNULIB_POSIXCHECK
1284 # undef snprintf
1285 # if HAVE_RAW_DECL_SNPRINTF
1286 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1287                  "use gnulib module snprintf for portability");
1288 # endif
1289 #endif
1290
1291 /* Some people would argue that all sprintf uses should be warned about
1292    (for example, OpenBSD issues a link warning for it),
1293    since it can cause security holes due to buffer overruns.
1294    However, we believe that sprintf can be used safely, and is more
1295    efficient than snprintf in those safe cases; and as proof of our
1296    belief, we use sprintf in several gnulib modules.  So this header
1297    intentionally avoids adding a warning to sprintf except when
1298    GNULIB_POSIXCHECK is defined.  */
1299
1300 #if @GNULIB_SPRINTF_POSIX@
1301 # if @REPLACE_SPRINTF@
1302 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1303 #   define sprintf rpl_sprintf
1304 #  endif
1305 _GL_FUNCDECL_RPL (sprintf, int,
1306                   (char *restrict str, const char *restrict format, ...)
1307                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
1308                   _GL_ARG_NONNULL ((1, 2)));
1309 _GL_CXXALIAS_RPL (sprintf, int,
1310                   (char *restrict str, const char *restrict format, ...));
1311 # else
1312 _GL_CXXALIAS_SYS (sprintf, int,
1313                   (char *restrict str, const char *restrict format, ...));
1314 # endif
1315 # if __GLIBC__ >= 2
1316 _GL_CXXALIASWARN (sprintf);
1317 # endif
1318 #elif defined GNULIB_POSIXCHECK
1319 # undef sprintf
1320 /* Assume sprintf is always declared.  */
1321 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1322                  "use gnulib module sprintf-posix for portable "
1323                  "POSIX compliance");
1324 #endif
1325
1326 #if @GNULIB_MDA_TEMPNAM@
1327 /* On native Windows, map 'tempnam' to '_tempnam', so that -loldnames is not
1328    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
1329    platforms by defining GNULIB_NAMESPACE::tempnam always.  */
1330 # if defined _WIN32 && !defined __CYGWIN__
1331 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1332 #   undef tempnam
1333 #   define tempnam _tempnam
1334 #  endif
1335 _GL_CXXALIAS_MDA (tempnam, char *, (const char *dir, const char *prefix));
1336 # else
1337 _GL_CXXALIAS_SYS (tempnam, char *, (const char *dir, const char *prefix));
1338 # endif
1339 _GL_CXXALIASWARN (tempnam);
1340 #endif
1341
1342 #if @GNULIB_TMPFILE@
1343 # if @REPLACE_TMPFILE@
1344 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1345 #   define tmpfile rpl_tmpfile
1346 #  endif
1347 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1348 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1349 # else
1350 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1351 # endif
1352 # if __GLIBC__ >= 2
1353 _GL_CXXALIASWARN (tmpfile);
1354 # endif
1355 #elif defined GNULIB_POSIXCHECK
1356 # undef tmpfile
1357 # if HAVE_RAW_DECL_TMPFILE
1358 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1359                  "use gnulib module tmpfile for portability");
1360 # endif
1361 #endif
1362
1363 #if @GNULIB_VASPRINTF@
1364 /* Write formatted output to a string dynamically allocated with malloc().
1365    If the memory allocation succeeds, store the address of the string in
1366    *RESULT and return the number of resulting bytes, excluding the trailing
1367    NUL.  Upon memory allocation error, or some other error, return -1.  */
1368 # if @REPLACE_VASPRINTF@
1369 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1370 #   define asprintf rpl_asprintf
1371 #  endif
1372 _GL_FUNCDECL_RPL (asprintf, int,
1373                   (char **result, const char *format, ...)
1374                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
1375                   _GL_ARG_NONNULL ((1, 2)));
1376 _GL_CXXALIAS_RPL (asprintf, int,
1377                   (char **result, const char *format, ...));
1378 # else
1379 #  if !@HAVE_VASPRINTF@
1380 _GL_FUNCDECL_SYS (asprintf, int,
1381                   (char **result, const char *format, ...)
1382                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
1383                   _GL_ARG_NONNULL ((1, 2)));
1384 #  endif
1385 _GL_CXXALIAS_SYS (asprintf, int,
1386                   (char **result, const char *format, ...));
1387 # endif
1388 _GL_CXXALIASWARN (asprintf);
1389 # if @REPLACE_VASPRINTF@
1390 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1391 #   define vasprintf rpl_vasprintf
1392 #  endif
1393 _GL_FUNCDECL_RPL (vasprintf, int,
1394                   (char **result, const char *format, va_list args)
1395                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1396                   _GL_ARG_NONNULL ((1, 2)));
1397 _GL_CXXALIAS_RPL (vasprintf, int,
1398                   (char **result, const char *format, va_list args));
1399 # else
1400 #  if !@HAVE_VASPRINTF@
1401 _GL_FUNCDECL_SYS (vasprintf, int,
1402                   (char **result, const char *format, va_list args)
1403                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1404                   _GL_ARG_NONNULL ((1, 2)));
1405 #  endif
1406 _GL_CXXALIAS_SYS (vasprintf, int,
1407                   (char **result, const char *format, va_list args));
1408 # endif
1409 _GL_CXXALIASWARN (vasprintf);
1410 #endif
1411
1412 #if @GNULIB_VDPRINTF@
1413 # if @REPLACE_VDPRINTF@
1414 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1415 #   define vdprintf rpl_vdprintf
1416 #  endif
1417 _GL_FUNCDECL_RPL (vdprintf, int,
1418                   (int fd, const char *restrict format, va_list args)
1419                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1420                   _GL_ARG_NONNULL ((2)));
1421 _GL_CXXALIAS_RPL (vdprintf, int,
1422                   (int fd, const char *restrict format, va_list args));
1423 # else
1424 #  if !@HAVE_VDPRINTF@
1425 _GL_FUNCDECL_SYS (vdprintf, int,
1426                   (int fd, const char *restrict format, va_list args)
1427                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1428                   _GL_ARG_NONNULL ((2)));
1429 #  endif
1430 /* Need to cast, because on Solaris, the third parameter will likely be
1431                                                     __va_list args.  */
1432 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
1433                        (int fd, const char *restrict format, va_list args));
1434 # endif
1435 # if __GLIBC__ >= 2
1436 _GL_CXXALIASWARN (vdprintf);
1437 # endif
1438 #elif defined GNULIB_POSIXCHECK
1439 # undef vdprintf
1440 # if HAVE_RAW_DECL_VDPRINTF
1441 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1442                  "use gnulib module vdprintf for portability");
1443 # endif
1444 #endif
1445
1446 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1447 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1448      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1449 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1450 #   define vfprintf rpl_vfprintf
1451 #  endif
1452 #  define GNULIB_overrides_vfprintf 1
1453 #  if @GNULIB_VFPRINTF_POSIX@
1454 _GL_FUNCDECL_RPL (vfprintf, int,
1455                   (FILE *restrict fp,
1456                    const char *restrict format, va_list args)
1457                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1458                   _GL_ARG_NONNULL ((1, 2)));
1459 #  else
1460 _GL_FUNCDECL_RPL (vfprintf, int,
1461                   (FILE *restrict fp,
1462                    const char *restrict format, va_list args)
1463                   _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1464                   _GL_ARG_NONNULL ((1, 2)));
1465 #  endif
1466 _GL_CXXALIAS_RPL (vfprintf, int,
1467                   (FILE *restrict fp,
1468                    const char *restrict format, va_list args));
1469 # else
1470 /* Need to cast, because on Solaris, the third parameter is
1471                                                       __va_list args
1472    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1473 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1474                        (FILE *restrict fp,
1475                         const char *restrict format, va_list args));
1476 # endif
1477 # if __GLIBC__ >= 2
1478 _GL_CXXALIASWARN (vfprintf);
1479 # endif
1480 #endif
1481 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1482 # if !GNULIB_overrides_vfprintf
1483 #  undef vfprintf
1484 # endif
1485 /* Assume vfprintf is always declared.  */
1486 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1487                  "use gnulib module vfprintf-posix for portable "
1488                       "POSIX compliance");
1489 #endif
1490
1491 #if @GNULIB_VFSCANF@
1492 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1493 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1494 #   undef vfscanf
1495 #   define vfscanf rpl_vfscanf
1496 #  endif
1497 _GL_FUNCDECL_RPL (vfscanf, int,
1498                   (FILE *restrict stream,
1499                    const char *restrict format, va_list args)
1500                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1501                   _GL_ARG_NONNULL ((1, 2)));
1502 _GL_CXXALIAS_RPL (vfscanf, int,
1503                   (FILE *restrict stream,
1504                    const char *restrict format, va_list args));
1505 # else
1506 _GL_CXXALIAS_SYS (vfscanf, int,
1507                   (FILE *restrict stream,
1508                    const char *restrict format, va_list args));
1509 # endif
1510 # if __GLIBC__ >= 2
1511 _GL_CXXALIASWARN (vfscanf);
1512 # endif
1513 #endif
1514
1515 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1516 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1517      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1518 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1519 #   define vprintf rpl_vprintf
1520 #  endif
1521 #  define GNULIB_overrides_vprintf 1
1522 #  if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1523 _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args)
1524                                 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 0)
1525                                 _GL_ARG_NONNULL ((1)));
1526 #  else
1527 _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args)
1528                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1529                                 _GL_ARG_NONNULL ((1)));
1530 #  endif
1531 _GL_CXXALIAS_RPL (vprintf, int, (const char *restrict format, va_list args));
1532 # else
1533 /* Need to cast, because on Solaris, the second parameter is
1534                                                           __va_list args
1535    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1536 _GL_CXXALIAS_SYS_CAST (vprintf, int,
1537                        (const char *restrict format, va_list args));
1538 # endif
1539 # if __GLIBC__ >= 2
1540 _GL_CXXALIASWARN (vprintf);
1541 # endif
1542 #endif
1543 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1544 # if !GNULIB_overrides_vprintf
1545 #  undef vprintf
1546 # endif
1547 /* Assume vprintf is always declared.  */
1548 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1549                  "use gnulib module vprintf-posix for portable "
1550                  "POSIX compliance");
1551 #endif
1552
1553 #if @GNULIB_VSCANF@
1554 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1555 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1556 #   undef vscanf
1557 #   define vscanf rpl_vscanf
1558 #  endif
1559 _GL_FUNCDECL_RPL (vscanf, int, (const char *restrict format, va_list args)
1560                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1561                                _GL_ARG_NONNULL ((1)));
1562 _GL_CXXALIAS_RPL (vscanf, int, (const char *restrict format, va_list args));
1563 # else
1564 _GL_CXXALIAS_SYS (vscanf, int, (const char *restrict format, va_list args));
1565 # endif
1566 # if __GLIBC__ >= 2
1567 _GL_CXXALIASWARN (vscanf);
1568 # endif
1569 #endif
1570
1571 #if @GNULIB_VSNPRINTF@
1572 # if @REPLACE_VSNPRINTF@
1573 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1574 #   define vsnprintf rpl_vsnprintf
1575 #  endif
1576 _GL_FUNCDECL_RPL (vsnprintf, int,
1577                   (char *restrict str, size_t size,
1578                    const char *restrict format, va_list args)
1579                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0)
1580                   _GL_ARG_NONNULL ((3)));
1581 _GL_CXXALIAS_RPL (vsnprintf, int,
1582                   (char *restrict str, size_t size,
1583                    const char *restrict format, va_list args));
1584 # else
1585 #  if !@HAVE_DECL_VSNPRINTF@
1586 _GL_FUNCDECL_SYS (vsnprintf, int,
1587                   (char *restrict str, size_t size,
1588                    const char *restrict format, va_list args)
1589                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0)
1590                   _GL_ARG_NONNULL ((3)));
1591 #  endif
1592 _GL_CXXALIAS_SYS (vsnprintf, int,
1593                   (char *restrict str, size_t size,
1594                    const char *restrict format, va_list args));
1595 # endif
1596 # if __GLIBC__ >= 2
1597 _GL_CXXALIASWARN (vsnprintf);
1598 # endif
1599 #elif defined GNULIB_POSIXCHECK
1600 # undef vsnprintf
1601 # if HAVE_RAW_DECL_VSNPRINTF
1602 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1603                  "use gnulib module vsnprintf for portability");
1604 # endif
1605 #endif
1606
1607 #if @GNULIB_VSPRINTF_POSIX@
1608 # if @REPLACE_VSPRINTF@
1609 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1610 #   define vsprintf rpl_vsprintf
1611 #  endif
1612 _GL_FUNCDECL_RPL (vsprintf, int,
1613                   (char *restrict str,
1614                    const char *restrict format, va_list args)
1615                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1616                   _GL_ARG_NONNULL ((1, 2)));
1617 _GL_CXXALIAS_RPL (vsprintf, int,
1618                   (char *restrict str,
1619                    const char *restrict format, va_list args));
1620 # else
1621 /* Need to cast, because on Solaris, the third parameter is
1622                                                        __va_list args
1623    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1624 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1625                        (char *restrict str,
1626                         const char *restrict format, va_list args));
1627 # endif
1628 # if __GLIBC__ >= 2
1629 _GL_CXXALIASWARN (vsprintf);
1630 # endif
1631 #elif defined GNULIB_POSIXCHECK
1632 # undef vsprintf
1633 /* Assume vsprintf is always declared.  */
1634 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1635                  "use gnulib module vsprintf-posix for portable "
1636                       "POSIX compliance");
1637 #endif
1638
1639 #endif /* _@GUARD_PREFIX@_STDIO_H */
1640 #endif /* _@GUARD_PREFIX@_STDIO_H */
1641 #endif