root/lib/stdio.in.h

     1 /* A GNU-like <stdio.h>.
     2 
     3    Copyright (C) 2004, 2007-2023 Free Software Foundation, Inc.
     4 
     5    This file is free software: you can redistribute it and/or modify
     6    it under the terms of the GNU Lesser General Public License as
     7    published by the Free Software Foundation; either version 2.1 of the
     8    License, or (at your option) any later version.
     9 
    10    This file is distributed in the hope that it will be useful,
    11    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13    GNU Lesser General Public License for more details.
    14 
    15    You should have received a copy of the GNU Lesser General Public License
    16    along with this program.  If not, 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 /* Suppress macOS deprecation warnings for sprintf and vsprintf.  */
    40 #if (defined __APPLE__ && defined __MACH__) && !defined _POSIX_C_SOURCE
    41 # define _POSIX_C_SOURCE 200809L
    42 # define _GL_DEFINED__POSIX_C_SOURCE
    43 #endif
    44 
    45 #define _GL_ALREADY_INCLUDING_STDIO_H
    46 
    47 /* The include_next requires a split double-inclusion guard.  */
    48 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
    49 
    50 #undef _GL_ALREADY_INCLUDING_STDIO_H
    51 
    52 #ifdef _GL_DEFINED__POSIX_C_SOURCE
    53 # undef _GL_DEFINED__POSIX_C_SOURCE
    54 # undef _POSIX_C_SOURCE
    55 #endif
    56 
    57 #ifndef _@GUARD_PREFIX@_STDIO_H
    58 #define _@GUARD_PREFIX@_STDIO_H
    59 
    60 /* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_FORMAT,
    61    _GL_ATTRIBUTE_MALLOC, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
    62 #if !_GL_CONFIG_H_INCLUDED
    63  #error "Please include config.h first."
    64 #endif
    65 
    66 /* Get va_list.  Needed on many systems, including glibc 2.8.  */
    67 #include <stdarg.h>
    68 
    69 #include <stddef.h>
    70 
    71 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8
    72    and eglibc 2.11.2.
    73    May also define off_t to a 64-bit type on native Windows.  */
    74 #include <sys/types.h>
    75 
    76 /* Solaris 10 and NetBSD 7.0 declare renameat in <unistd.h>, not in <stdio.h>.  */
    77 /* But in any case avoid namespace pollution on glibc systems.  */
    78 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && (defined __sun || defined __NetBSD__) \
    79     && ! defined __GLIBC__
    80 # include <unistd.h>
    81 #endif
    82 
    83 /* Android 4.3 declares renameat in <sys/stat.h>, not in <stdio.h>.  */
    84 /* But in any case avoid namespace pollution on glibc systems.  */
    85 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \
    86     && ! defined __GLIBC__
    87 # include <sys/stat.h>
    88 #endif
    89 
    90 /* MSVC declares 'perror' in <stdlib.h>, not in <stdio.h>.  We must include
    91    it before we  #define perror rpl_perror.  */
    92 /* But in any case avoid namespace pollution on glibc systems.  */
    93 #if (@GNULIB_PERROR@ || defined GNULIB_POSIXCHECK) \
    94     && (defined _WIN32 && ! defined __CYGWIN__) \
    95     && ! defined __GLIBC__
    96 # include <stdlib.h>
    97 #endif
    98 
    99 /* MSVC declares 'remove' in <io.h>, not in <stdio.h>.  We must include
   100    it before we  #define remove rpl_remove.  */
   101 /* MSVC declares 'rename' in <io.h>, not in <stdio.h>.  We must include
   102    it before we  #define rename rpl_rename.  */
   103 /* But in any case avoid namespace pollution on glibc systems.  */
   104 #if (@GNULIB_REMOVE@ || @GNULIB_RENAME@ || defined GNULIB_POSIXCHECK) \
   105     && (defined _WIN32 && ! defined __CYGWIN__) \
   106     && ! defined __GLIBC__
   107 # include <io.h>
   108 #endif
   109 
   110 
   111 /* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
   112    that can be freed by passing them as the Ith argument to the
   113    function F.  */
   114 #ifndef _GL_ATTRIBUTE_DEALLOC
   115 # if __GNUC__ >= 11
   116 #  define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
   117 # else
   118 #  define _GL_ATTRIBUTE_DEALLOC(f, i)
   119 # endif
   120 #endif
   121 
   122 /* The __attribute__ feature is available in gcc versions 2.5 and later.
   123    The __-protected variants of the attributes 'format' and 'printf' are
   124    accepted by gcc versions 2.6.4 (effectively 2.7) and later.
   125    We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
   126    gnulib and libintl do '#define printf __printf__' when they override
   127    the 'printf' function.  */
   128 #ifndef _GL_ATTRIBUTE_FORMAT
   129 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || defined __clang__
   130 #  define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
   131 # else
   132 #  define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
   133 # endif
   134 #endif
   135 
   136 /* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
   137    allocated memory.  */
   138 #ifndef _GL_ATTRIBUTE_MALLOC
   139 # if __GNUC__ >= 3 || defined __clang__
   140 #  define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
   141 # else
   142 #  define _GL_ATTRIBUTE_MALLOC
   143 # endif
   144 #endif
   145 
   146 /* An __attribute__ __format__ specifier for a function that takes a format
   147    string and arguments, where the format string directives are the ones
   148    standardized by ISO C99 and POSIX.
   149    _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD  */
   150 /* __gnu_printf__ is supported in GCC >= 4.4.  */
   151 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
   152 # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __gnu_printf__
   153 #else
   154 # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__
   155 #endif
   156 
   157 /* An __attribute__ __format__ specifier for a function that takes a format
   158    string and arguments, where the format string directives are the ones of the
   159    system printf(), rather than the ones standardized by ISO C99 and POSIX.
   160    _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM  */
   161 /* On mingw, Gnulib sets __USE_MINGW_ANSI_STDIO in order to get closer to
   162    the standards.  The macro GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU indicates
   163    whether this change is effective.  On older mingw, it is not.  */
   164 #if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
   165 # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD
   166 #else
   167 # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM __printf__
   168 #endif
   169 
   170 /* _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD
   171    indicates to GCC that the function takes a format string and arguments,
   172    where the format string directives are the ones standardized by ISO C99
   173    and POSIX.  */
   174 #define _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(formatstring_parameter, first_argument) \
   175   _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, formatstring_parameter, first_argument))
   176 
   177 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD,
   178    except that it indicates to GCC that the supported format string directives
   179    are the ones of the system printf(), rather than the ones standardized by
   180    ISO C99 and POSIX.  */
   181 #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
   182   _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, formatstring_parameter, first_argument))
   183 
   184 /* _GL_ATTRIBUTE_FORMAT_SCANF
   185    indicates to GCC that the function takes a format string and arguments,
   186    where the format string directives are the ones standardized by ISO C99
   187    and POSIX.  */
   188 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
   189 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
   190    _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
   191 #else
   192 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
   193    _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
   194 #endif
   195 
   196 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
   197    except that it indicates to GCC that the supported format string directives
   198    are the ones of the system scanf(), rather than the ones standardized by
   199    ISO C99 and POSIX.  */
   200 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
   201   _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
   202 
   203 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
   204 
   205 /* The definition of _GL_ARG_NONNULL is copied here.  */
   206 
   207 /* The definition of _GL_WARN_ON_USE is copied here.  */
   208 
   209 /* Macros for stringification.  */
   210 #define _GL_STDIO_STRINGIZE(token) #token
   211 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
   212 
   213 /* When also using extern inline, suppress the use of static inline in
   214    standard headers of problematic Apple configurations, as Libc at
   215    least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
   216    <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
   217    Perhaps Apple will fix this some day.  */
   218 #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
   219      && defined __GNUC__ && defined __STDC__)
   220 # undef putc_unlocked
   221 #endif
   222 
   223 
   224 /* Maximum number of characters produced by printing a NaN value.  */
   225 #ifndef _PRINTF_NAN_LEN_MAX
   226 # if defined __FreeBSD__ || defined __DragonFly__ \
   227      || defined __NetBSD__ \
   228      || (defined __APPLE__ && defined __MACH__)
   229 /* On BSD systems, a NaN value prints as just "nan", without a sign.  */
   230 #  define _PRINTF_NAN_LEN_MAX 3
   231 # elif (__GLIBC__ >= 2) || MUSL_LIBC || defined __OpenBSD__ || defined __sun || defined __CYGWIN__
   232 /* glibc, musl libc, OpenBSD, Solaris libc, and Cygwin produce "[-]nan".  */
   233 #  define _PRINTF_NAN_LEN_MAX 4
   234 # elif defined _AIX
   235 /* AIX produces "[-]NaNQ".  */
   236 #  define _PRINTF_NAN_LEN_MAX 5
   237 # elif defined _WIN32 && !defined __CYGWIN__
   238 /* On native Windows, the output can be:
   239    - with MSVC ucrt: "[-]nan" or "[-]nan(ind)" or "[-]nan(snan)",
   240    - with mingw: "[-]1.#IND" or "[-]1.#QNAN".  */
   241 #  define _PRINTF_NAN_LEN_MAX 10
   242 # elif defined __sgi
   243 /* On IRIX, the output typically is "[-]nan0xNNNNNNNN" with 8 hexadecimal
   244    digits.  */
   245 #  define _PRINTF_NAN_LEN_MAX 14
   246 # else
   247 /* We don't know, but 32 should be a safe maximum.  */
   248 #  define _PRINTF_NAN_LEN_MAX 32
   249 # endif
   250 #endif
   251 
   252 
   253 #if @GNULIB_DPRINTF@
   254 # if @REPLACE_DPRINTF@
   255 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   256 #   define dprintf rpl_dprintf
   257 #  endif
   258 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *restrict format, ...)
   259                                 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
   260                                 _GL_ARG_NONNULL ((2)));
   261 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *restrict format, ...));
   262 # else
   263 #  if !@HAVE_DPRINTF@
   264 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *restrict format, ...)
   265                                 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
   266                                 _GL_ARG_NONNULL ((2)));
   267 #  endif
   268 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *restrict format, ...));
   269 # endif
   270 # if __GLIBC__ >= 2
   271 _GL_CXXALIASWARN (dprintf);
   272 # endif
   273 #elif defined GNULIB_POSIXCHECK
   274 # undef dprintf
   275 # if HAVE_RAW_DECL_DPRINTF
   276 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
   277                  "use gnulib module dprintf for portability");
   278 # endif
   279 #endif
   280 
   281 #if @GNULIB_FCLOSE@
   282 /* Close STREAM and its underlying file descriptor.  */
   283 # if @REPLACE_FCLOSE@
   284 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   285 #   define fclose rpl_fclose
   286 #  endif
   287 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
   288 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
   289 # else
   290 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
   291 # endif
   292 # if __GLIBC__ >= 2
   293 _GL_CXXALIASWARN (fclose);
   294 # endif
   295 #elif defined GNULIB_POSIXCHECK
   296 # undef fclose
   297 /* Assume fclose is always declared.  */
   298 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
   299                  "use gnulib module fclose for portable POSIX compliance");
   300 #endif
   301 
   302 #if @GNULIB_MDA_FCLOSEALL@
   303 /* On native Windows, map 'fcloseall' to '_fcloseall', so that -loldnames is
   304    not required.  In C++ with GNULIB_NAMESPACE, avoid differences between
   305    platforms by defining GNULIB_NAMESPACE::fcloseall on all platforms that have
   306    it.  */
   307 # if defined _WIN32 && !defined __CYGWIN__
   308 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   309 #   undef fcloseall
   310 #   define fcloseall _fcloseall
   311 #  endif
   312 _GL_CXXALIAS_MDA (fcloseall, int, (void));
   313 # else
   314 #  if @HAVE_DECL_FCLOSEALL@
   315 #   if defined __FreeBSD__ || defined __DragonFly__
   316 _GL_CXXALIAS_SYS (fcloseall, void, (void));
   317 #   else
   318 _GL_CXXALIAS_SYS (fcloseall, int, (void));
   319 #   endif
   320 #  endif
   321 # endif
   322 # if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCLOSEALL@
   323 _GL_CXXALIASWARN (fcloseall);
   324 # endif
   325 #endif
   326 
   327 #if @GNULIB_FDOPEN@
   328 # if @REPLACE_FDOPEN@
   329 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   330 #   undef fdopen
   331 #   define fdopen rpl_fdopen
   332 #  endif
   333 _GL_FUNCDECL_RPL (fdopen, FILE *,
   334                   (int fd, const char *mode)
   335                   _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1)
   336                   _GL_ATTRIBUTE_MALLOC);
   337 _GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
   338 # elif defined _WIN32 && !defined __CYGWIN__
   339 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   340 #   undef fdopen
   341 #   define fdopen _fdopen
   342 #  endif
   343 _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode));
   344 # else
   345 #  if __GNUC__ >= 11
   346 /* For -Wmismatched-dealloc: Associate fdopen with fclose or rpl_fclose.  */
   347 _GL_FUNCDECL_SYS (fdopen, FILE *,
   348                   (int fd, const char *mode)
   349                   _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1)
   350                   _GL_ATTRIBUTE_MALLOC);
   351 #  endif
   352 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
   353 # endif
   354 _GL_CXXALIASWARN (fdopen);
   355 #else
   356 # if @GNULIB_FCLOSE@ && __GNUC__ >= 11 && !defined fdopen
   357 /* For -Wmismatched-dealloc: Associate fdopen with fclose or rpl_fclose.  */
   358 _GL_FUNCDECL_SYS (fdopen, FILE *,
   359                   (int fd, const char *mode)
   360                   _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1)
   361                   _GL_ATTRIBUTE_MALLOC);
   362 # endif
   363 # if defined GNULIB_POSIXCHECK
   364 #  undef fdopen
   365 /* Assume fdopen is always declared.  */
   366 _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
   367                  "use gnulib module fdopen for portability");
   368 # elif @GNULIB_MDA_FDOPEN@
   369 /* On native Windows, map 'fdopen' to '_fdopen', so that -loldnames is not
   370    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
   371    platforms by defining GNULIB_NAMESPACE::fdopen always.  */
   372 #  if defined _WIN32 && !defined __CYGWIN__
   373 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   374 #    undef fdopen
   375 #    define fdopen _fdopen
   376 #   endif
   377 _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode));
   378 #  else
   379 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
   380 #  endif
   381 _GL_CXXALIASWARN (fdopen);
   382 # endif
   383 #endif
   384 
   385 #if @GNULIB_FFLUSH@
   386 /* Flush all pending data on STREAM according to POSIX rules.  Both
   387    output and seekable input streams are supported.
   388    Note! LOSS OF DATA can occur if fflush is applied on an input stream
   389    that is _not_seekable_ or on an update stream that is _not_seekable_
   390    and in which the most recent operation was input.  Seekability can
   391    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
   392 # if @REPLACE_FFLUSH@
   393 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   394 #   define fflush rpl_fflush
   395 #  endif
   396 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
   397 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
   398 # else
   399 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
   400 # endif
   401 # if __GLIBC__ >= 2
   402 _GL_CXXALIASWARN (fflush);
   403 # endif
   404 #elif defined GNULIB_POSIXCHECK
   405 # undef fflush
   406 /* Assume fflush is always declared.  */
   407 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
   408                  "use gnulib module fflush for portable POSIX compliance");
   409 #endif
   410 
   411 #if @GNULIB_FGETC@
   412 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
   413 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   414 #   undef fgetc
   415 #   define fgetc rpl_fgetc
   416 #  endif
   417 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
   418 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
   419 # else
   420 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
   421 # endif
   422 # if __GLIBC__ >= 2
   423 _GL_CXXALIASWARN (fgetc);
   424 # endif
   425 #endif
   426 
   427 #if @GNULIB_FGETS@
   428 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
   429 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   430 #   undef fgets
   431 #   define fgets rpl_fgets
   432 #  endif
   433 _GL_FUNCDECL_RPL (fgets, char *,
   434                   (char *restrict s, int n, FILE *restrict stream)
   435                   _GL_ARG_NONNULL ((1, 3)));
   436 _GL_CXXALIAS_RPL (fgets, char *,
   437                   (char *restrict s, int n, FILE *restrict stream));
   438 # else
   439 _GL_CXXALIAS_SYS (fgets, char *,
   440                   (char *restrict s, int n, FILE *restrict stream));
   441 # endif
   442 # if __GLIBC__ >= 2
   443 _GL_CXXALIASWARN (fgets);
   444 # endif
   445 #endif
   446 
   447 #if @GNULIB_MDA_FILENO@
   448 /* On native Windows, map 'fileno' to '_fileno', so that -loldnames is not
   449    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
   450    platforms by defining GNULIB_NAMESPACE::fileno always.  */
   451 # if defined _WIN32 && !defined __CYGWIN__
   452 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   453 #   undef fileno
   454 #   define fileno _fileno
   455 #  endif
   456 _GL_CXXALIAS_MDA (fileno, int, (FILE *restrict stream));
   457 # else
   458 _GL_CXXALIAS_SYS (fileno, int, (FILE *restrict stream));
   459 # endif
   460 _GL_CXXALIASWARN (fileno);
   461 #endif
   462 
   463 #if @GNULIB_FOPEN@
   464 # if (@GNULIB_FOPEN@ && @REPLACE_FOPEN@) \
   465      || (@GNULIB_FOPEN_GNU@ && @REPLACE_FOPEN_FOR_FOPEN_GNU@)
   466 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   467 #   undef fopen
   468 #   define fopen rpl_fopen
   469 #  endif
   470 _GL_FUNCDECL_RPL (fopen, FILE *,
   471                   (const char *restrict filename, const char *restrict mode)
   472                   _GL_ARG_NONNULL ((1, 2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1)
   473                   _GL_ATTRIBUTE_MALLOC);
   474 _GL_CXXALIAS_RPL (fopen, FILE *,
   475                   (const char *restrict filename, const char *restrict mode));
   476 # else
   477 #  if __GNUC__ >= 11
   478 /* For -Wmismatched-dealloc: Associate fopen with fclose or rpl_fclose.  */
   479 _GL_FUNCDECL_SYS (fopen, FILE *,
   480                   (const char *restrict filename, const char *restrict mode)
   481                   _GL_ARG_NONNULL ((1, 2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1));
   482 #  endif
   483 _GL_CXXALIAS_SYS (fopen, FILE *,
   484                   (const char *restrict filename, const char *restrict mode));
   485 # endif
   486 # if __GLIBC__ >= 2
   487 _GL_CXXALIASWARN (fopen);
   488 # endif
   489 #else
   490 # if @GNULIB_FCLOSE@ && __GNUC__ >= 11 && !defined fopen
   491 /* For -Wmismatched-dealloc: Associate fopen with fclose or rpl_fclose.  */
   492 _GL_FUNCDECL_SYS (fopen, FILE *,
   493                   (const char *restrict filename, const char *restrict mode)
   494                   _GL_ARG_NONNULL ((1, 2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1));
   495 # endif
   496 # if defined GNULIB_POSIXCHECK
   497 #  undef fopen
   498 /* Assume fopen is always declared.  */
   499 _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
   500                  "use gnulib module fopen for portability");
   501 # endif
   502 #endif
   503 
   504 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
   505 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
   506      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
   507 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   508 #   define fprintf rpl_fprintf
   509 #  endif
   510 #  define GNULIB_overrides_fprintf 1
   511 #  if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
   512 _GL_FUNCDECL_RPL (fprintf, int,
   513                   (FILE *restrict fp, const char *restrict format, ...)
   514                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
   515                   _GL_ARG_NONNULL ((1, 2)));
   516 #  else
   517 _GL_FUNCDECL_RPL (fprintf, int,
   518                   (FILE *restrict fp, const char *restrict format, ...)
   519                   _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
   520                   _GL_ARG_NONNULL ((1, 2)));
   521 #  endif
   522 _GL_CXXALIAS_RPL (fprintf, int,
   523                   (FILE *restrict fp, const char *restrict format, ...));
   524 # else
   525 _GL_CXXALIAS_SYS (fprintf, int,
   526                   (FILE *restrict fp, const char *restrict format, ...));
   527 # endif
   528 # if __GLIBC__ >= 2
   529 _GL_CXXALIASWARN (fprintf);
   530 # endif
   531 #endif
   532 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
   533 # if !GNULIB_overrides_fprintf
   534 #  undef fprintf
   535 # endif
   536 /* Assume fprintf is always declared.  */
   537 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
   538                  "use gnulib module fprintf-posix for portable "
   539                  "POSIX compliance");
   540 #endif
   541 
   542 #if @GNULIB_FPURGE@
   543 /* Discard all pending buffered I/O data on STREAM.
   544    STREAM must not be wide-character oriented.
   545    When discarding pending output, the file position is set back to where it
   546    was before the write calls.  When discarding pending input, the file
   547    position is advanced to match the end of the previously read input.
   548    Return 0 if successful.  Upon error, return -1 and set errno.  */
   549 # if @REPLACE_FPURGE@
   550 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   551 #   define fpurge rpl_fpurge
   552 #  endif
   553 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
   554 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
   555 # else
   556 #  if !@HAVE_DECL_FPURGE@
   557 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
   558 #  endif
   559 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
   560 # endif
   561 _GL_CXXALIASWARN (fpurge);
   562 #elif defined GNULIB_POSIXCHECK
   563 # undef fpurge
   564 # if HAVE_RAW_DECL_FPURGE
   565 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
   566                  "use gnulib module fpurge for portability");
   567 # endif
   568 #endif
   569 
   570 #if @GNULIB_FPUTC@
   571 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
   572 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   573 #   undef fputc
   574 #   define fputc rpl_fputc
   575 #  endif
   576 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
   577 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
   578 # else
   579 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
   580 # endif
   581 # if __GLIBC__ >= 2
   582 _GL_CXXALIASWARN (fputc);
   583 # endif
   584 #endif
   585 
   586 #if @GNULIB_FPUTS@
   587 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
   588 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   589 #   undef fputs
   590 #   define fputs rpl_fputs
   591 #  endif
   592 _GL_FUNCDECL_RPL (fputs, int,
   593                   (const char *restrict string, FILE *restrict stream)
   594                   _GL_ARG_NONNULL ((1, 2)));
   595 _GL_CXXALIAS_RPL (fputs, int,
   596                   (const char *restrict string, FILE *restrict stream));
   597 # else
   598 _GL_CXXALIAS_SYS (fputs, int,
   599                   (const char *restrict string, FILE *restrict stream));
   600 # endif
   601 # if __GLIBC__ >= 2
   602 _GL_CXXALIASWARN (fputs);
   603 # endif
   604 #endif
   605 
   606 #if @GNULIB_FREAD@
   607 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
   608 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   609 #   undef fread
   610 #   define fread rpl_fread
   611 #  endif
   612 _GL_FUNCDECL_RPL (fread, size_t,
   613                   (void *restrict ptr, size_t s, size_t n,
   614                    FILE *restrict stream)
   615                   _GL_ARG_NONNULL ((4)));
   616 _GL_CXXALIAS_RPL (fread, size_t,
   617                   (void *restrict ptr, size_t s, size_t n,
   618                    FILE *restrict stream));
   619 # else
   620 _GL_CXXALIAS_SYS (fread, size_t,
   621                   (void *restrict ptr, size_t s, size_t n,
   622                    FILE *restrict stream));
   623 # endif
   624 # if __GLIBC__ >= 2
   625 _GL_CXXALIASWARN (fread);
   626 # endif
   627 #endif
   628 
   629 #if @GNULIB_FREOPEN@
   630 # if @REPLACE_FREOPEN@
   631 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   632 #   undef freopen
   633 #   define freopen rpl_freopen
   634 #  endif
   635 _GL_FUNCDECL_RPL (freopen, FILE *,
   636                   (const char *restrict filename, const char *restrict mode,
   637                    FILE *restrict stream)
   638                   _GL_ARG_NONNULL ((2, 3)));
   639 _GL_CXXALIAS_RPL (freopen, FILE *,
   640                   (const char *restrict filename, const char *restrict mode,
   641                    FILE *restrict stream));
   642 # else
   643 _GL_CXXALIAS_SYS (freopen, FILE *,
   644                   (const char *restrict filename, const char *restrict mode,
   645                    FILE *restrict stream));
   646 # endif
   647 # if __GLIBC__ >= 2
   648 _GL_CXXALIASWARN (freopen);
   649 # endif
   650 #elif defined GNULIB_POSIXCHECK
   651 # undef freopen
   652 /* Assume freopen is always declared.  */
   653 _GL_WARN_ON_USE (freopen,
   654                  "freopen on native Windows platforms is not POSIX compliant - "
   655                  "use gnulib module freopen for portability");
   656 #endif
   657 
   658 #if @GNULIB_FSCANF@
   659 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
   660 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   661 #   undef fscanf
   662 #   define fscanf rpl_fscanf
   663 #  endif
   664 _GL_FUNCDECL_RPL (fscanf, int,
   665                   (FILE *restrict stream, const char *restrict format, ...)
   666                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
   667                   _GL_ARG_NONNULL ((1, 2)));
   668 _GL_CXXALIAS_RPL (fscanf, int,
   669                   (FILE *restrict stream, const char *restrict format, ...));
   670 # else
   671 _GL_CXXALIAS_SYS (fscanf, int,
   672                   (FILE *restrict stream, const char *restrict format, ...));
   673 # endif
   674 # if __GLIBC__ >= 2
   675 _GL_CXXALIASWARN (fscanf);
   676 # endif
   677 #endif
   678 
   679 
   680 /* Set up the following warnings, based on which modules are in use.
   681    GNU Coding Standards discourage the use of fseek, since it imposes
   682    an arbitrary limitation on some 32-bit hosts.  Remember that the
   683    fseek module depends on the fseeko module, so we only have three
   684    cases to consider:
   685 
   686    1. The developer is not using either module.  Issue a warning under
   687    GNULIB_POSIXCHECK for both functions, to remind them that both
   688    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
   689    impact on this warning.
   690 
   691    2. The developer is using both modules.  They may be unaware of the
   692    arbitrary limitations of fseek, so issue a warning under
   693    GNULIB_POSIXCHECK.  On the other hand, they may be using both
   694    modules intentionally, so the developer can define
   695    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
   696    is safe, to silence the warning.
   697 
   698    3. The developer is using the fseeko module, but not fseek.  Gnulib
   699    guarantees that fseek will still work around platform bugs in that
   700    case, but we presume that the developer is aware of the pitfalls of
   701    fseek and was trying to avoid it, so issue a warning even when
   702    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
   703    defined to silence the warning in particular compilation units.
   704    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
   705    fseek gets defined as a macro, it is recommended that the developer
   706    uses the fseek module, even if he is not calling the fseek function.
   707 
   708    Most gnulib clients that perform stream operations should fall into
   709    category 3.  */
   710 
   711 #if @GNULIB_FSEEK@
   712 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
   713 #  define _GL_FSEEK_WARN /* Category 2, above.  */
   714 #  undef fseek
   715 # endif
   716 # if @REPLACE_FSEEK@
   717 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   718 #   undef fseek
   719 #   define fseek rpl_fseek
   720 #  endif
   721 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
   722                               _GL_ARG_NONNULL ((1)));
   723 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
   724 # else
   725 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
   726 # endif
   727 # if __GLIBC__ >= 2
   728 _GL_CXXALIASWARN (fseek);
   729 # endif
   730 #endif
   731 
   732 #if @GNULIB_FSEEKO@
   733 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
   734 #  define _GL_FSEEK_WARN /* Category 3, above.  */
   735 #  undef fseek
   736 # endif
   737 # if @REPLACE_FSEEKO@
   738 /* Provide an fseeko function that is aware of a preceding fflush(), and which
   739    detects pipes.  */
   740 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   741 #   undef fseeko
   742 #   define fseeko rpl_fseeko
   743 #  endif
   744 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
   745                                _GL_ARG_NONNULL ((1)));
   746 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
   747 # else
   748 #  if ! @HAVE_DECL_FSEEKO@
   749 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
   750                                _GL_ARG_NONNULL ((1)));
   751 #  endif
   752 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
   753 # endif
   754 _GL_CXXALIASWARN (fseeko);
   755 #elif defined GNULIB_POSIXCHECK
   756 # define _GL_FSEEK_WARN /* Category 1, above.  */
   757 # undef fseek
   758 # undef fseeko
   759 # if HAVE_RAW_DECL_FSEEKO
   760 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
   761                  "use gnulib module fseeko for portability");
   762 # endif
   763 #endif
   764 
   765 #ifdef _GL_FSEEK_WARN
   766 # undef _GL_FSEEK_WARN
   767 /* Here, either fseek is undefined (but C89 guarantees that it is
   768    declared), or it is defined as rpl_fseek (declared above).  */
   769 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
   770                  "on 32-bit platforms - "
   771                  "use fseeko function for handling of large files");
   772 #endif
   773 
   774 
   775 /* ftell, ftello.  See the comments on fseek/fseeko.  */
   776 
   777 #if @GNULIB_FTELL@
   778 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
   779 #  define _GL_FTELL_WARN /* Category 2, above.  */
   780 #  undef ftell
   781 # endif
   782 # if @REPLACE_FTELL@
   783 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   784 #   undef ftell
   785 #   define ftell rpl_ftell
   786 #  endif
   787 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
   788 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
   789 # else
   790 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
   791 # endif
   792 # if __GLIBC__ >= 2
   793 _GL_CXXALIASWARN (ftell);
   794 # endif
   795 #endif
   796 
   797 #if @GNULIB_FTELLO@
   798 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
   799 #  define _GL_FTELL_WARN /* Category 3, above.  */
   800 #  undef ftell
   801 # endif
   802 # if @REPLACE_FTELLO@
   803 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   804 #   undef ftello
   805 #   define ftello rpl_ftello
   806 #  endif
   807 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
   808 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
   809 # else
   810 #  if ! @HAVE_DECL_FTELLO@
   811 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
   812 #  endif
   813 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
   814 # endif
   815 _GL_CXXALIASWARN (ftello);
   816 #elif defined GNULIB_POSIXCHECK
   817 # define _GL_FTELL_WARN /* Category 1, above.  */
   818 # undef ftell
   819 # undef ftello
   820 # if HAVE_RAW_DECL_FTELLO
   821 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
   822                  "use gnulib module ftello for portability");
   823 # endif
   824 #endif
   825 
   826 #ifdef _GL_FTELL_WARN
   827 # undef _GL_FTELL_WARN
   828 /* Here, either ftell is undefined (but C89 guarantees that it is
   829    declared), or it is defined as rpl_ftell (declared above).  */
   830 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
   831                  "on 32-bit platforms - "
   832                  "use ftello function for handling of large files");
   833 #endif
   834 
   835 
   836 #if @GNULIB_FWRITE@
   837 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
   838 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   839 #   undef fwrite
   840 #   define fwrite rpl_fwrite
   841 #  endif
   842 _GL_FUNCDECL_RPL (fwrite, size_t,
   843                   (const void *restrict ptr, size_t s, size_t n,
   844                    FILE *restrict stream)
   845                   _GL_ARG_NONNULL ((1, 4)));
   846 _GL_CXXALIAS_RPL (fwrite, size_t,
   847                   (const void *restrict ptr, size_t s, size_t n,
   848                    FILE *restrict stream));
   849 # else
   850 _GL_CXXALIAS_SYS (fwrite, size_t,
   851                   (const void *restrict ptr, size_t s, size_t n,
   852                    FILE *restrict stream));
   853 
   854 /* Work around bug 11959 when fortifying glibc 2.4 through 2.15
   855    <https://sourceware.org/bugzilla/show_bug.cgi?id=11959>,
   856    which sometimes causes an unwanted diagnostic for fwrite calls.
   857    This affects only function declaration attributes under certain
   858    versions of gcc and clang, and is not needed for C++.  */
   859 #  if (0 < __USE_FORTIFY_LEVEL                                          \
   860        && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
   861        && 3 < __GNUC__ + (4 <= __GNUC_MINOR__)                          \
   862        && !defined __cplusplus)
   863 #   undef fwrite
   864 #   undef fwrite_unlocked
   865 extern size_t __REDIRECT (rpl_fwrite,
   866                           (const void *__restrict, size_t, size_t,
   867                            FILE *__restrict),
   868                           fwrite);
   869 extern size_t __REDIRECT (rpl_fwrite_unlocked,
   870                           (const void *__restrict, size_t, size_t,
   871                            FILE *__restrict),
   872                           fwrite_unlocked);
   873 #   define fwrite rpl_fwrite
   874 #   define fwrite_unlocked rpl_fwrite_unlocked
   875 #  endif
   876 # endif
   877 # if __GLIBC__ >= 2
   878 _GL_CXXALIASWARN (fwrite);
   879 # endif
   880 #endif
   881 
   882 #if @GNULIB_GETC@
   883 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
   884 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   885 #   undef getc
   886 #   define getc rpl_fgetc
   887 #  endif
   888 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
   889 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
   890 # else
   891 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
   892 # endif
   893 # if __GLIBC__ >= 2
   894 _GL_CXXALIASWARN (getc);
   895 # endif
   896 #endif
   897 
   898 #if @GNULIB_GETCHAR@
   899 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
   900 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   901 #   undef getchar
   902 #   define getchar rpl_getchar
   903 #  endif
   904 _GL_FUNCDECL_RPL (getchar, int, (void));
   905 _GL_CXXALIAS_RPL (getchar, int, (void));
   906 # else
   907 _GL_CXXALIAS_SYS (getchar, int, (void));
   908 # endif
   909 # if __GLIBC__ >= 2
   910 _GL_CXXALIASWARN (getchar);
   911 # endif
   912 #endif
   913 
   914 #if @GNULIB_GETDELIM@
   915 /* Read input, up to (and including) the next occurrence of DELIMITER, from
   916    STREAM, store it in *LINEPTR (and NUL-terminate it).
   917    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
   918    bytes of space.  It is realloc'd as necessary.
   919    Return the number of bytes read and stored at *LINEPTR (not including the
   920    NUL terminator), or -1 on error or EOF.  */
   921 # if @REPLACE_GETDELIM@
   922 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   923 #   undef getdelim
   924 #   define getdelim rpl_getdelim
   925 #  endif
   926 _GL_FUNCDECL_RPL (getdelim, ssize_t,
   927                   (char **restrict lineptr, size_t *restrict linesize,
   928                    int delimiter,
   929                    FILE *restrict stream)
   930                   _GL_ARG_NONNULL ((1, 2, 4)));
   931 _GL_CXXALIAS_RPL (getdelim, ssize_t,
   932                   (char **restrict lineptr, size_t *restrict linesize,
   933                    int delimiter,
   934                    FILE *restrict stream));
   935 # else
   936 #  if !@HAVE_DECL_GETDELIM@
   937 _GL_FUNCDECL_SYS (getdelim, ssize_t,
   938                   (char **restrict lineptr, size_t *restrict linesize,
   939                    int delimiter,
   940                    FILE *restrict stream)
   941                   _GL_ARG_NONNULL ((1, 2, 4)));
   942 #  endif
   943 _GL_CXXALIAS_SYS (getdelim, ssize_t,
   944                   (char **restrict lineptr, size_t *restrict linesize,
   945                    int delimiter,
   946                    FILE *restrict stream));
   947 # endif
   948 # if __GLIBC__ >= 2
   949 _GL_CXXALIASWARN (getdelim);
   950 # endif
   951 #elif defined GNULIB_POSIXCHECK
   952 # undef getdelim
   953 # if HAVE_RAW_DECL_GETDELIM
   954 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
   955                  "use gnulib module getdelim for portability");
   956 # endif
   957 #endif
   958 
   959 #if @GNULIB_GETLINE@
   960 /* Read a line, up to (and including) the next newline, from STREAM, store it
   961    in *LINEPTR (and NUL-terminate it).
   962    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
   963    bytes of space.  It is realloc'd as necessary.
   964    Return the number of bytes read and stored at *LINEPTR (not including the
   965    NUL terminator), or -1 on error or EOF.  */
   966 # if @REPLACE_GETLINE@
   967 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
   968 #   undef getline
   969 #   define getline rpl_getline
   970 #  endif
   971 _GL_FUNCDECL_RPL (getline, ssize_t,
   972                   (char **restrict lineptr, size_t *restrict linesize,
   973                    FILE *restrict stream)
   974                   _GL_ARG_NONNULL ((1, 2, 3)));
   975 _GL_CXXALIAS_RPL (getline, ssize_t,
   976                   (char **restrict lineptr, size_t *restrict linesize,
   977                    FILE *restrict stream));
   978 # else
   979 #  if !@HAVE_DECL_GETLINE@
   980 _GL_FUNCDECL_SYS (getline, ssize_t,
   981                   (char **restrict lineptr, size_t *restrict linesize,
   982                    FILE *restrict stream)
   983                   _GL_ARG_NONNULL ((1, 2, 3)));
   984 #  endif
   985 _GL_CXXALIAS_SYS (getline, ssize_t,
   986                   (char **restrict lineptr, size_t *restrict linesize,
   987                    FILE *restrict stream));
   988 # endif
   989 # if __GLIBC__ >= 2 && @HAVE_DECL_GETLINE@
   990 _GL_CXXALIASWARN (getline);
   991 # endif
   992 #elif defined GNULIB_POSIXCHECK
   993 # undef getline
   994 # if HAVE_RAW_DECL_GETLINE
   995 _GL_WARN_ON_USE (getline, "getline is unportable - "
   996                  "use gnulib module getline for portability");
   997 # endif
   998 #endif
   999 
  1000 /* It is very rare that the developer ever has full control of stdin,
  1001    so any use of gets warrants an unconditional warning; besides, C11
  1002    removed it.  */
  1003 #undef gets
  1004 #if HAVE_RAW_DECL_GETS && !defined __cplusplus
  1005 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
  1006 #endif
  1007 
  1008 #if @GNULIB_MDA_GETW@
  1009 /* On native Windows, map 'getw' to '_getw', so that -loldnames is not
  1010    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
  1011    platforms by defining GNULIB_NAMESPACE::getw always.  */
  1012 # if defined _WIN32 && !defined __CYGWIN__
  1013 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1014 #   undef getw
  1015 #   define getw _getw
  1016 #  endif
  1017 _GL_CXXALIAS_MDA (getw, int, (FILE *restrict stream));
  1018 # else
  1019 #  if @HAVE_DECL_GETW@
  1020 #   if defined __APPLE__ && defined __MACH__
  1021 /* The presence of the declaration depends on _POSIX_C_SOURCE.  */
  1022 _GL_FUNCDECL_SYS (getw, int, (FILE *restrict stream));
  1023 #   endif
  1024 _GL_CXXALIAS_SYS (getw, int, (FILE *restrict stream));
  1025 #  endif
  1026 # endif
  1027 # if __GLIBC__ >= 2
  1028 _GL_CXXALIASWARN (getw);
  1029 # endif
  1030 #endif
  1031 
  1032 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
  1033 struct obstack;
  1034 /* Grow an obstack with formatted output.  Return the number of
  1035    bytes added to OBS.  No trailing nul byte is added, and the
  1036    object should be closed with obstack_finish before use.  Upon
  1037    memory allocation error, call obstack_alloc_failed_handler.  Upon
  1038    other error, return -1.  */
  1039 # if @REPLACE_OBSTACK_PRINTF@
  1040 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1041 #   define obstack_printf rpl_obstack_printf
  1042 #  endif
  1043 _GL_FUNCDECL_RPL (obstack_printf, int,
  1044                   (struct obstack *obs, const char *format, ...)
  1045                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
  1046                   _GL_ARG_NONNULL ((1, 2)));
  1047 _GL_CXXALIAS_RPL (obstack_printf, int,
  1048                   (struct obstack *obs, const char *format, ...));
  1049 # else
  1050 #  if !@HAVE_DECL_OBSTACK_PRINTF@
  1051 _GL_FUNCDECL_SYS (obstack_printf, int,
  1052                   (struct obstack *obs, const char *format, ...)
  1053                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
  1054                   _GL_ARG_NONNULL ((1, 2)));
  1055 #  endif
  1056 _GL_CXXALIAS_SYS (obstack_printf, int,
  1057                   (struct obstack *obs, const char *format, ...));
  1058 # endif
  1059 _GL_CXXALIASWARN (obstack_printf);
  1060 # if @REPLACE_OBSTACK_PRINTF@
  1061 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1062 #   define obstack_vprintf rpl_obstack_vprintf
  1063 #  endif
  1064 _GL_FUNCDECL_RPL (obstack_vprintf, int,
  1065                   (struct obstack *obs, const char *format, va_list args)
  1066                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1067                   _GL_ARG_NONNULL ((1, 2)));
  1068 _GL_CXXALIAS_RPL (obstack_vprintf, int,
  1069                   (struct obstack *obs, const char *format, va_list args));
  1070 # else
  1071 #  if !@HAVE_DECL_OBSTACK_PRINTF@
  1072 _GL_FUNCDECL_SYS (obstack_vprintf, int,
  1073                   (struct obstack *obs, const char *format, va_list args)
  1074                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1075                   _GL_ARG_NONNULL ((1, 2)));
  1076 #  endif
  1077 _GL_CXXALIAS_SYS (obstack_vprintf, int,
  1078                   (struct obstack *obs, const char *format, va_list args));
  1079 # endif
  1080 _GL_CXXALIASWARN (obstack_vprintf);
  1081 #endif
  1082 
  1083 #if @GNULIB_PCLOSE@
  1084 # if !@HAVE_PCLOSE@
  1085 _GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
  1086 # endif
  1087 _GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
  1088 _GL_CXXALIASWARN (pclose);
  1089 #elif defined GNULIB_POSIXCHECK
  1090 # undef pclose
  1091 # if HAVE_RAW_DECL_PCLOSE
  1092 _GL_WARN_ON_USE (pclose, "pclose is unportable - "
  1093                  "use gnulib module pclose for more portability");
  1094 # endif
  1095 #endif
  1096 
  1097 #if @GNULIB_PERROR@
  1098 /* Print a message to standard error, describing the value of ERRNO,
  1099    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
  1100    and terminated with a newline.  */
  1101 # if @REPLACE_PERROR@
  1102 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1103 #   define perror rpl_perror
  1104 #  endif
  1105 _GL_FUNCDECL_RPL (perror, void, (const char *string));
  1106 _GL_CXXALIAS_RPL (perror, void, (const char *string));
  1107 # else
  1108 _GL_CXXALIAS_SYS (perror, void, (const char *string));
  1109 # endif
  1110 # if __GLIBC__ >= 2
  1111 _GL_CXXALIASWARN (perror);
  1112 # endif
  1113 #elif defined GNULIB_POSIXCHECK
  1114 # undef perror
  1115 /* Assume perror is always declared.  */
  1116 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
  1117                  "use gnulib module perror for portability");
  1118 #endif
  1119 
  1120 #if @GNULIB_POPEN@
  1121 # if @REPLACE_POPEN@
  1122 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1123 #   undef popen
  1124 #   define popen rpl_popen
  1125 #  endif
  1126 _GL_FUNCDECL_RPL (popen, FILE *,
  1127                   (const char *cmd, const char *mode)
  1128                   _GL_ARG_NONNULL ((1, 2)) _GL_ATTRIBUTE_DEALLOC (pclose, 1)
  1129                   _GL_ATTRIBUTE_MALLOC);
  1130 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
  1131 # else
  1132 #  if !@HAVE_POPEN@ || __GNUC__ >= 11
  1133 _GL_FUNCDECL_SYS (popen, FILE *,
  1134                   (const char *cmd, const char *mode)
  1135                   _GL_ARG_NONNULL ((1, 2)) _GL_ATTRIBUTE_DEALLOC (pclose, 1)
  1136                   _GL_ATTRIBUTE_MALLOC);
  1137 #  endif
  1138 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
  1139 # endif
  1140 _GL_CXXALIASWARN (popen);
  1141 #else
  1142 # if @GNULIB_PCLOSE@ && __GNUC__ >= 11 && !defined popen
  1143 /* For -Wmismatched-dealloc: Associate popen with pclose or rpl_pclose.  */
  1144 _GL_FUNCDECL_SYS (popen, FILE *,
  1145                   (const char *cmd, const char *mode)
  1146                   _GL_ARG_NONNULL ((1, 2)) _GL_ATTRIBUTE_DEALLOC (pclose, 1)
  1147                   _GL_ATTRIBUTE_MALLOC);
  1148 # endif
  1149 # if defined GNULIB_POSIXCHECK
  1150 #  undef popen
  1151 #  if HAVE_RAW_DECL_POPEN
  1152 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
  1153                  "use gnulib module popen or pipe for more portability");
  1154 #  endif
  1155 # endif
  1156 #endif
  1157 
  1158 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
  1159 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
  1160      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
  1161 #  if defined __GNUC__ || defined __clang__
  1162 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1163 /* Don't break __attribute__((format(printf,M,N))).  */
  1164 #    define printf __printf__
  1165 #   endif
  1166 #   if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
  1167 _GL_FUNCDECL_RPL_1 (__printf__, int,
  1168                     (const char *restrict format, ...)
  1169                     __asm__ (@ASM_SYMBOL_PREFIX@
  1170                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
  1171                     _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2)
  1172                     _GL_ARG_NONNULL ((1)));
  1173 #   else
  1174 _GL_FUNCDECL_RPL_1 (__printf__, int,
  1175                     (const char *restrict format, ...)
  1176                     __asm__ (@ASM_SYMBOL_PREFIX@
  1177                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
  1178                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
  1179                     _GL_ARG_NONNULL ((1)));
  1180 #   endif
  1181 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
  1182 #  else
  1183 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1184 #    define printf rpl_printf
  1185 #   endif
  1186 _GL_FUNCDECL_RPL (printf, int,
  1187                   (const char *restrict format, ...)
  1188                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2)
  1189                   _GL_ARG_NONNULL ((1)));
  1190 _GL_CXXALIAS_RPL (printf, int, (const char *restrict format, ...));
  1191 #  endif
  1192 #  define GNULIB_overrides_printf 1
  1193 # else
  1194 _GL_CXXALIAS_SYS (printf, int, (const char *restrict format, ...));
  1195 # endif
  1196 # if __GLIBC__ >= 2
  1197 _GL_CXXALIASWARN (printf);
  1198 # endif
  1199 #endif
  1200 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
  1201 # if !GNULIB_overrides_printf
  1202 #  undef printf
  1203 # endif
  1204 /* Assume printf is always declared.  */
  1205 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
  1206                  "use gnulib module printf-posix for portable "
  1207                  "POSIX compliance");
  1208 #endif
  1209 
  1210 #if @GNULIB_PUTC@
  1211 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
  1212 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1213 #   undef putc
  1214 #   define putc rpl_fputc
  1215 #  endif
  1216 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
  1217 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
  1218 # else
  1219 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
  1220 # endif
  1221 # if __GLIBC__ >= 2
  1222 _GL_CXXALIASWARN (putc);
  1223 # endif
  1224 #endif
  1225 
  1226 #if @GNULIB_PUTCHAR@
  1227 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
  1228 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1229 #   undef putchar
  1230 #   define putchar rpl_putchar
  1231 #  endif
  1232 _GL_FUNCDECL_RPL (putchar, int, (int c));
  1233 _GL_CXXALIAS_RPL (putchar, int, (int c));
  1234 # else
  1235 _GL_CXXALIAS_SYS (putchar, int, (int c));
  1236 # endif
  1237 # if __GLIBC__ >= 2
  1238 _GL_CXXALIASWARN (putchar);
  1239 # endif
  1240 #endif
  1241 
  1242 #if @GNULIB_PUTS@
  1243 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
  1244 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1245 #   undef puts
  1246 #   define puts rpl_puts
  1247 #  endif
  1248 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
  1249 _GL_CXXALIAS_RPL (puts, int, (const char *string));
  1250 # else
  1251 _GL_CXXALIAS_SYS (puts, int, (const char *string));
  1252 # endif
  1253 # if __GLIBC__ >= 2
  1254 _GL_CXXALIASWARN (puts);
  1255 # endif
  1256 #endif
  1257 
  1258 #if @GNULIB_MDA_PUTW@
  1259 /* On native Windows, map 'putw' to '_putw', so that -loldnames is not
  1260    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
  1261    platforms by defining GNULIB_NAMESPACE::putw always.  */
  1262 # if defined _WIN32 && !defined __CYGWIN__
  1263 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1264 #   undef putw
  1265 #   define putw _putw
  1266 #  endif
  1267 _GL_CXXALIAS_MDA (putw, int, (int w, FILE *restrict stream));
  1268 # else
  1269 #  if @HAVE_DECL_PUTW@
  1270 #   if defined __APPLE__ && defined __MACH__
  1271 /* The presence of the declaration depends on _POSIX_C_SOURCE.  */
  1272 _GL_FUNCDECL_SYS (putw, int, (int w, FILE *restrict stream));
  1273 #   endif
  1274 _GL_CXXALIAS_SYS (putw, int, (int w, FILE *restrict stream));
  1275 #  endif
  1276 # endif
  1277 # if __GLIBC__ >= 2
  1278 _GL_CXXALIASWARN (putw);
  1279 # endif
  1280 #endif
  1281 
  1282 #if @GNULIB_REMOVE@
  1283 # if @REPLACE_REMOVE@
  1284 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1285 #   undef remove
  1286 #   define remove rpl_remove
  1287 #  endif
  1288 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
  1289 _GL_CXXALIAS_RPL (remove, int, (const char *name));
  1290 # else
  1291 _GL_CXXALIAS_SYS (remove, int, (const char *name));
  1292 # endif
  1293 # if __GLIBC__ >= 2
  1294 _GL_CXXALIASWARN (remove);
  1295 # endif
  1296 #elif defined GNULIB_POSIXCHECK
  1297 # undef remove
  1298 /* Assume remove is always declared.  */
  1299 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
  1300                  "use gnulib module remove for more portability");
  1301 #endif
  1302 
  1303 #if @GNULIB_RENAME@
  1304 # if @REPLACE_RENAME@
  1305 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1306 #   undef rename
  1307 #   define rename rpl_rename
  1308 #  endif
  1309 _GL_FUNCDECL_RPL (rename, int,
  1310                   (const char *old_filename, const char *new_filename)
  1311                   _GL_ARG_NONNULL ((1, 2)));
  1312 _GL_CXXALIAS_RPL (rename, int,
  1313                   (const char *old_filename, const char *new_filename));
  1314 # else
  1315 _GL_CXXALIAS_SYS (rename, int,
  1316                   (const char *old_filename, const char *new_filename));
  1317 # endif
  1318 # if __GLIBC__ >= 2
  1319 _GL_CXXALIASWARN (rename);
  1320 # endif
  1321 #elif defined GNULIB_POSIXCHECK
  1322 # undef rename
  1323 /* Assume rename is always declared.  */
  1324 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
  1325                  "use gnulib module rename for more portability");
  1326 #endif
  1327 
  1328 #if @GNULIB_RENAMEAT@
  1329 # if @REPLACE_RENAMEAT@
  1330 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1331 #   undef renameat
  1332 #   define renameat rpl_renameat
  1333 #  endif
  1334 _GL_FUNCDECL_RPL (renameat, int,
  1335                   (int fd1, char const *file1, int fd2, char const *file2)
  1336                   _GL_ARG_NONNULL ((2, 4)));
  1337 _GL_CXXALIAS_RPL (renameat, int,
  1338                   (int fd1, char const *file1, int fd2, char const *file2));
  1339 # else
  1340 #  if !@HAVE_RENAMEAT@
  1341 _GL_FUNCDECL_SYS (renameat, int,
  1342                   (int fd1, char const *file1, int fd2, char const *file2)
  1343                   _GL_ARG_NONNULL ((2, 4)));
  1344 #  endif
  1345 _GL_CXXALIAS_SYS (renameat, int,
  1346                   (int fd1, char const *file1, int fd2, char const *file2));
  1347 # endif
  1348 _GL_CXXALIASWARN (renameat);
  1349 #elif defined GNULIB_POSIXCHECK
  1350 # undef renameat
  1351 # if HAVE_RAW_DECL_RENAMEAT
  1352 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
  1353                  "use gnulib module renameat for portability");
  1354 # endif
  1355 #endif
  1356 
  1357 #if @GNULIB_SCANF@
  1358 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
  1359 #  if defined __GNUC__ || defined __clang__
  1360 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1361 #    undef scanf
  1362 /* Don't break __attribute__((format(scanf,M,N))).  */
  1363 #    define scanf __scanf__
  1364 #   endif
  1365 _GL_FUNCDECL_RPL_1 (__scanf__, int,
  1366                     (const char *restrict format, ...)
  1367                     __asm__ (@ASM_SYMBOL_PREFIX@
  1368                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
  1369                     _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
  1370                     _GL_ARG_NONNULL ((1)));
  1371 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *restrict format, ...));
  1372 #  else
  1373 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1374 #    undef scanf
  1375 #    define scanf rpl_scanf
  1376 #   endif
  1377 _GL_FUNCDECL_RPL (scanf, int, (const char *restrict format, ...)
  1378                               _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
  1379                               _GL_ARG_NONNULL ((1)));
  1380 _GL_CXXALIAS_RPL (scanf, int, (const char *restrict format, ...));
  1381 #  endif
  1382 # else
  1383 _GL_CXXALIAS_SYS (scanf, int, (const char *restrict format, ...));
  1384 # endif
  1385 # if __GLIBC__ >= 2
  1386 _GL_CXXALIASWARN (scanf);
  1387 # endif
  1388 #endif
  1389 
  1390 #if @GNULIB_SNPRINTF@
  1391 # if @REPLACE_SNPRINTF@
  1392 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1393 #   define snprintf rpl_snprintf
  1394 #  endif
  1395 #  define GNULIB_overrides_snprintf 1
  1396 _GL_FUNCDECL_RPL (snprintf, int,
  1397                   (char *restrict str, size_t size,
  1398                    const char *restrict format, ...)
  1399                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4)
  1400                   _GL_ARG_NONNULL ((3)));
  1401 _GL_CXXALIAS_RPL (snprintf, int,
  1402                   (char *restrict str, size_t size,
  1403                    const char *restrict format, ...));
  1404 # else
  1405 #  if !@HAVE_DECL_SNPRINTF@
  1406 _GL_FUNCDECL_SYS (snprintf, int,
  1407                   (char *restrict str, size_t size,
  1408                    const char *restrict format, ...)
  1409                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4)
  1410                   _GL_ARG_NONNULL ((3)));
  1411 #  endif
  1412 _GL_CXXALIAS_SYS (snprintf, int,
  1413                   (char *restrict str, size_t size,
  1414                    const char *restrict format, ...));
  1415 # endif
  1416 # if __GLIBC__ >= 2
  1417 _GL_CXXALIASWARN (snprintf);
  1418 # endif
  1419 #elif defined GNULIB_POSIXCHECK
  1420 # undef snprintf
  1421 # if HAVE_RAW_DECL_SNPRINTF
  1422 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
  1423                  "use gnulib module snprintf for portability");
  1424 # endif
  1425 #endif
  1426 
  1427 /* Some people would argue that all sprintf uses should be warned about
  1428    (for example, OpenBSD issues a link warning for it),
  1429    since it can cause security holes due to buffer overruns.
  1430    However, we believe that sprintf can be used safely, and is more
  1431    efficient than snprintf in those safe cases; and as proof of our
  1432    belief, we use sprintf in several gnulib modules.  So this header
  1433    intentionally avoids adding a warning to sprintf except when
  1434    GNULIB_POSIXCHECK is defined.  */
  1435 
  1436 #if @GNULIB_SPRINTF_POSIX@
  1437 # if @REPLACE_SPRINTF@
  1438 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1439 #   define sprintf rpl_sprintf
  1440 #  endif
  1441 #  define GNULIB_overrides_sprintf 1
  1442 _GL_FUNCDECL_RPL (sprintf, int,
  1443                   (char *restrict str, const char *restrict format, ...)
  1444                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
  1445                   _GL_ARG_NONNULL ((1, 2)));
  1446 _GL_CXXALIAS_RPL (sprintf, int,
  1447                   (char *restrict str, const char *restrict format, ...));
  1448 # else
  1449 _GL_CXXALIAS_SYS (sprintf, int,
  1450                   (char *restrict str, const char *restrict format, ...));
  1451 # endif
  1452 # if __GLIBC__ >= 2
  1453 _GL_CXXALIASWARN (sprintf);
  1454 # endif
  1455 #elif defined GNULIB_POSIXCHECK
  1456 # undef sprintf
  1457 /* Assume sprintf is always declared.  */
  1458 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
  1459                  "use gnulib module sprintf-posix for portable "
  1460                  "POSIX compliance");
  1461 #endif
  1462 
  1463 #if @GNULIB_MDA_TEMPNAM@
  1464 /* On native Windows, map 'tempnam' to '_tempnam', so that -loldnames is not
  1465    required.  In C++ with GNULIB_NAMESPACE, avoid differences between
  1466    platforms by defining GNULIB_NAMESPACE::tempnam always.  */
  1467 # if defined _WIN32 && !defined __CYGWIN__
  1468 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1469 #   undef tempnam
  1470 #   define tempnam _tempnam
  1471 #  endif
  1472 _GL_CXXALIAS_MDA (tempnam, char *, (const char *dir, const char *prefix));
  1473 # else
  1474 _GL_CXXALIAS_SYS (tempnam, char *, (const char *dir, const char *prefix));
  1475 # endif
  1476 _GL_CXXALIASWARN (tempnam);
  1477 #endif
  1478 
  1479 #if @GNULIB_TMPFILE@
  1480 # if @REPLACE_TMPFILE@
  1481 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1482 #   define tmpfile rpl_tmpfile
  1483 #  endif
  1484 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void)
  1485                                    _GL_ATTRIBUTE_DEALLOC (fclose, 1)
  1486                                    _GL_ATTRIBUTE_MALLOC);
  1487 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
  1488 # else
  1489 #  if __GNUC__ >= 11
  1490 /* For -Wmismatched-dealloc: Associate tmpfile with fclose or rpl_fclose.  */
  1491 _GL_FUNCDECL_SYS (tmpfile, FILE *, (void)
  1492                                    _GL_ATTRIBUTE_DEALLOC (fclose, 1)
  1493                                    _GL_ATTRIBUTE_MALLOC);
  1494 #  endif
  1495 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
  1496 # endif
  1497 # if __GLIBC__ >= 2
  1498 _GL_CXXALIASWARN (tmpfile);
  1499 # endif
  1500 #else
  1501 # if @GNULIB_FCLOSE@ && __GNUC__ >= 11 && !defined tmpfile
  1502 /* For -Wmismatched-dealloc: Associate tmpfile with fclose or rpl_fclose.  */
  1503 _GL_FUNCDECL_SYS (tmpfile, FILE *, (void)
  1504                                    _GL_ATTRIBUTE_DEALLOC (fclose, 1)
  1505                                    _GL_ATTRIBUTE_MALLOC);
  1506 # endif
  1507 # if defined GNULIB_POSIXCHECK
  1508 #  undef tmpfile
  1509 #  if HAVE_RAW_DECL_TMPFILE
  1510 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
  1511                  "use gnulib module tmpfile for portability");
  1512 #  endif
  1513 # endif
  1514 #endif
  1515 
  1516 #if @GNULIB_VASPRINTF@
  1517 /* Write formatted output to a string dynamically allocated with malloc().
  1518    If the memory allocation succeeds, store the address of the string in
  1519    *RESULT and return the number of resulting bytes, excluding the trailing
  1520    NUL.  Upon memory allocation error, or some other error, return -1.  */
  1521 # if @REPLACE_VASPRINTF@
  1522 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1523 #   define asprintf rpl_asprintf
  1524 #  endif
  1525 #  define GNULIB_overrides_asprintf
  1526 _GL_FUNCDECL_RPL (asprintf, int,
  1527                   (char **result, const char *format, ...)
  1528                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
  1529                   _GL_ARG_NONNULL ((1, 2)));
  1530 _GL_CXXALIAS_RPL (asprintf, int,
  1531                   (char **result, const char *format, ...));
  1532 # else
  1533 #  if !@HAVE_VASPRINTF@
  1534 _GL_FUNCDECL_SYS (asprintf, int,
  1535                   (char **result, const char *format, ...)
  1536                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3)
  1537                   _GL_ARG_NONNULL ((1, 2)));
  1538 #  endif
  1539 _GL_CXXALIAS_SYS (asprintf, int,
  1540                   (char **result, const char *format, ...));
  1541 # endif
  1542 _GL_CXXALIASWARN (asprintf);
  1543 # if @REPLACE_VASPRINTF@
  1544 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1545 #   define vasprintf rpl_vasprintf
  1546 #  endif
  1547 #  define GNULIB_overrides_vasprintf 1
  1548 _GL_FUNCDECL_RPL (vasprintf, int,
  1549                   (char **result, const char *format, va_list args)
  1550                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1551                   _GL_ARG_NONNULL ((1, 2)));
  1552 _GL_CXXALIAS_RPL (vasprintf, int,
  1553                   (char **result, const char *format, va_list args));
  1554 # else
  1555 #  if !@HAVE_VASPRINTF@
  1556 _GL_FUNCDECL_SYS (vasprintf, int,
  1557                   (char **result, const char *format, va_list args)
  1558                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1559                   _GL_ARG_NONNULL ((1, 2)));
  1560 #  endif
  1561 _GL_CXXALIAS_SYS (vasprintf, int,
  1562                   (char **result, const char *format, va_list args));
  1563 # endif
  1564 _GL_CXXALIASWARN (vasprintf);
  1565 #endif
  1566 
  1567 #if @GNULIB_VDPRINTF@
  1568 # if @REPLACE_VDPRINTF@
  1569 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1570 #   define vdprintf rpl_vdprintf
  1571 #  endif
  1572 _GL_FUNCDECL_RPL (vdprintf, int,
  1573                   (int fd, const char *restrict format, va_list args)
  1574                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1575                   _GL_ARG_NONNULL ((2)));
  1576 _GL_CXXALIAS_RPL (vdprintf, int,
  1577                   (int fd, const char *restrict format, va_list args));
  1578 # else
  1579 #  if !@HAVE_VDPRINTF@
  1580 _GL_FUNCDECL_SYS (vdprintf, int,
  1581                   (int fd, const char *restrict format, va_list args)
  1582                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1583                   _GL_ARG_NONNULL ((2)));
  1584 #  endif
  1585 /* Need to cast, because on Solaris, the third parameter will likely be
  1586                                                     __va_list args.  */
  1587 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
  1588                        (int fd, const char *restrict format, va_list args));
  1589 # endif
  1590 # if __GLIBC__ >= 2
  1591 _GL_CXXALIASWARN (vdprintf);
  1592 # endif
  1593 #elif defined GNULIB_POSIXCHECK
  1594 # undef vdprintf
  1595 # if HAVE_RAW_DECL_VDPRINTF
  1596 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
  1597                  "use gnulib module vdprintf for portability");
  1598 # endif
  1599 #endif
  1600 
  1601 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
  1602 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
  1603      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
  1604 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1605 #   define vfprintf rpl_vfprintf
  1606 #  endif
  1607 #  define GNULIB_overrides_vfprintf 1
  1608 #  if @GNULIB_VFPRINTF_POSIX@
  1609 _GL_FUNCDECL_RPL (vfprintf, int,
  1610                   (FILE *restrict fp,
  1611                    const char *restrict format, va_list args)
  1612                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1613                   _GL_ARG_NONNULL ((1, 2)));
  1614 #  else
  1615 _GL_FUNCDECL_RPL (vfprintf, int,
  1616                   (FILE *restrict fp,
  1617                    const char *restrict format, va_list args)
  1618                   _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
  1619                   _GL_ARG_NONNULL ((1, 2)));
  1620 #  endif
  1621 _GL_CXXALIAS_RPL (vfprintf, int,
  1622                   (FILE *restrict fp,
  1623                    const char *restrict format, va_list args));
  1624 # else
  1625 /* Need to cast, because on Solaris, the third parameter is
  1626                                                       __va_list args
  1627    and GCC's fixincludes did not change this to __gnuc_va_list.  */
  1628 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
  1629                        (FILE *restrict fp,
  1630                         const char *restrict format, va_list args));
  1631 # endif
  1632 # if __GLIBC__ >= 2
  1633 _GL_CXXALIASWARN (vfprintf);
  1634 # endif
  1635 #endif
  1636 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
  1637 # if !GNULIB_overrides_vfprintf
  1638 #  undef vfprintf
  1639 # endif
  1640 /* Assume vfprintf is always declared.  */
  1641 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
  1642                  "use gnulib module vfprintf-posix for portable "
  1643                       "POSIX compliance");
  1644 #endif
  1645 
  1646 #if @GNULIB_VFSCANF@
  1647 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
  1648 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1649 #   undef vfscanf
  1650 #   define vfscanf rpl_vfscanf
  1651 #  endif
  1652 _GL_FUNCDECL_RPL (vfscanf, int,
  1653                   (FILE *restrict stream,
  1654                    const char *restrict format, va_list args)
  1655                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
  1656                   _GL_ARG_NONNULL ((1, 2)));
  1657 _GL_CXXALIAS_RPL (vfscanf, int,
  1658                   (FILE *restrict stream,
  1659                    const char *restrict format, va_list args));
  1660 # else
  1661 _GL_CXXALIAS_SYS (vfscanf, int,
  1662                   (FILE *restrict stream,
  1663                    const char *restrict format, va_list args));
  1664 # endif
  1665 # if __GLIBC__ >= 2
  1666 _GL_CXXALIASWARN (vfscanf);
  1667 # endif
  1668 #endif
  1669 
  1670 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
  1671 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
  1672      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
  1673 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1674 #   define vprintf rpl_vprintf
  1675 #  endif
  1676 #  define GNULIB_overrides_vprintf 1
  1677 #  if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
  1678 _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args)
  1679                                 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 0)
  1680                                 _GL_ARG_NONNULL ((1)));
  1681 #  else
  1682 _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args)
  1683                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
  1684                                 _GL_ARG_NONNULL ((1)));
  1685 #  endif
  1686 _GL_CXXALIAS_RPL (vprintf, int, (const char *restrict format, va_list args));
  1687 # else
  1688 /* Need to cast, because on Solaris, the second parameter is
  1689                                                           __va_list args
  1690    and GCC's fixincludes did not change this to __gnuc_va_list.  */
  1691 _GL_CXXALIAS_SYS_CAST (vprintf, int,
  1692                        (const char *restrict format, va_list args));
  1693 # endif
  1694 # if __GLIBC__ >= 2
  1695 _GL_CXXALIASWARN (vprintf);
  1696 # endif
  1697 #endif
  1698 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
  1699 # if !GNULIB_overrides_vprintf
  1700 #  undef vprintf
  1701 # endif
  1702 /* Assume vprintf is always declared.  */
  1703 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
  1704                  "use gnulib module vprintf-posix for portable "
  1705                  "POSIX compliance");
  1706 #endif
  1707 
  1708 #if @GNULIB_VSCANF@
  1709 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
  1710 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1711 #   undef vscanf
  1712 #   define vscanf rpl_vscanf
  1713 #  endif
  1714 _GL_FUNCDECL_RPL (vscanf, int, (const char *restrict format, va_list args)
  1715                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
  1716                                _GL_ARG_NONNULL ((1)));
  1717 _GL_CXXALIAS_RPL (vscanf, int, (const char *restrict format, va_list args));
  1718 # else
  1719 _GL_CXXALIAS_SYS (vscanf, int, (const char *restrict format, va_list args));
  1720 # endif
  1721 # if __GLIBC__ >= 2
  1722 _GL_CXXALIASWARN (vscanf);
  1723 # endif
  1724 #endif
  1725 
  1726 #if @GNULIB_VSNPRINTF@
  1727 # if @REPLACE_VSNPRINTF@
  1728 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1729 #   define vsnprintf rpl_vsnprintf
  1730 #  endif
  1731 #  define GNULIB_overrides_vsnprintf 1
  1732 _GL_FUNCDECL_RPL (vsnprintf, int,
  1733                   (char *restrict str, size_t size,
  1734                    const char *restrict format, va_list args)
  1735                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0)
  1736                   _GL_ARG_NONNULL ((3)));
  1737 _GL_CXXALIAS_RPL (vsnprintf, int,
  1738                   (char *restrict str, size_t size,
  1739                    const char *restrict format, va_list args));
  1740 # else
  1741 #  if !@HAVE_DECL_VSNPRINTF@
  1742 _GL_FUNCDECL_SYS (vsnprintf, int,
  1743                   (char *restrict str, size_t size,
  1744                    const char *restrict format, va_list args)
  1745                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0)
  1746                   _GL_ARG_NONNULL ((3)));
  1747 #  endif
  1748 _GL_CXXALIAS_SYS (vsnprintf, int,
  1749                   (char *restrict str, size_t size,
  1750                    const char *restrict format, va_list args));
  1751 # endif
  1752 # if __GLIBC__ >= 2
  1753 _GL_CXXALIASWARN (vsnprintf);
  1754 # endif
  1755 #elif defined GNULIB_POSIXCHECK
  1756 # undef vsnprintf
  1757 # if HAVE_RAW_DECL_VSNPRINTF
  1758 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
  1759                  "use gnulib module vsnprintf for portability");
  1760 # endif
  1761 #endif
  1762 
  1763 #if @GNULIB_VSPRINTF_POSIX@
  1764 # if @REPLACE_VSPRINTF@
  1765 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  1766 #   define vsprintf rpl_vsprintf
  1767 #  endif
  1768 #  define GNULIB_overrides_vsprintf 1
  1769 _GL_FUNCDECL_RPL (vsprintf, int,
  1770                   (char *restrict str,
  1771                    const char *restrict format, va_list args)
  1772                   _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
  1773                   _GL_ARG_NONNULL ((1, 2)));
  1774 _GL_CXXALIAS_RPL (vsprintf, int,
  1775                   (char *restrict str,
  1776                    const char *restrict format, va_list args));
  1777 # else
  1778 /* Need to cast, because on Solaris, the third parameter is
  1779                                                        __va_list args
  1780    and GCC's fixincludes did not change this to __gnuc_va_list.  */
  1781 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
  1782                        (char *restrict str,
  1783                         const char *restrict format, va_list args));
  1784 # endif
  1785 # if __GLIBC__ >= 2
  1786 _GL_CXXALIASWARN (vsprintf);
  1787 # endif
  1788 #elif defined GNULIB_POSIXCHECK
  1789 # undef vsprintf
  1790 /* Assume vsprintf is always declared.  */
  1791 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
  1792                  "use gnulib module vsprintf-posix for portable "
  1793                       "POSIX compliance");
  1794 #endif
  1795 
  1796 #endif /* _@GUARD_PREFIX@_STDIO_H */
  1797 #endif /* _@GUARD_PREFIX@_STDIO_H */
  1798 #endif