1 /* A GNU-like <stdio.h>.
3 Copyright (C) 2004, 2007-2021 Free Software Foundation, Inc.
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)
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.
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/>. */
19 @PRAGMA_SYSTEM_HEADER@
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. */
32 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
35 /* Normal invocation convention. */
37 #ifndef _@GUARD_PREFIX@_STDIO_H
39 #define _GL_ALREADY_INCLUDING_STDIO_H
41 /* The include_next requires a split double-inclusion guard. */
42 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
44 #undef _GL_ALREADY_INCLUDING_STDIO_H
46 #ifndef _@GUARD_PREFIX@_STDIO_H
47 #define _@GUARD_PREFIX@_STDIO_H
49 /* Get va_list. Needed on many systems, including glibc 2.8. */
54 /* Get off_t and ssize_t. Needed on many systems, including glibc 2.8
56 May also define off_t to a 64-bit type on native Windows. */
57 #include <sys/types.h>
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))
69 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
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__
81 # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__
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
94 # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM __printf__
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
101 #define _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(formatstring_parameter, first_argument) \
102 _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, formatstring_parameter, first_argument))
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))
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
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))
119 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
120 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
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))
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__
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>
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__
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__
165 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
167 /* The definition of _GL_ARG_NONNULL is copied here. */
169 /* The definition of _GL_WARN_ON_USE is copied here. */
171 /* Macros for stringification. */
172 #define _GL_STDIO_STRINGIZE(token) #token
173 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
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
186 # if @REPLACE_DPRINTF@
187 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
188 # define dprintf rpl_dprintf
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
, ...));
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)));
200 _GL_CXXALIAS_SYS (dprintf
, int, (int fd
, const char *restrict format
, ...));
202 _GL_CXXALIASWARN (dprintf
);
203 #elif defined GNULIB_POSIXCHECK
205 # if HAVE_RAW_DECL_DPRINTF
206 _GL_WARN_ON_USE (dprintf
, "dprintf is unportable - "
207 "use gnulib module dprintf for portability");
212 /* Close STREAM and its underlying file descriptor. */
213 # if @REPLACE_FCLOSE@
214 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
215 # define fclose rpl_fclose
217 _GL_FUNCDECL_RPL (fclose
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
218 _GL_CXXALIAS_RPL (fclose
, int, (FILE *stream
));
220 _GL_CXXALIAS_SYS (fclose
, int, (FILE *stream
));
223 _GL_CXXALIASWARN (fclose
);
225 #elif defined GNULIB_POSIXCHECK
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");
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
237 # if defined _WIN32 && !defined __CYGWIN__
238 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
240 # define fcloseall _fcloseall
242 _GL_CXXALIAS_MDA (fcloseall
, int, (void));
244 # if @HAVE_DECL_FCLOSEALL@
245 # if defined __FreeBSD__
246 _GL_CXXALIAS_SYS (fcloseall
, void, (void));
248 _GL_CXXALIAS_SYS (fcloseall
, int, (void));
252 # if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCLOSEALL@
253 _GL_CXXALIASWARN (fcloseall
);
258 # if @REPLACE_FDOPEN@
259 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
261 # define fdopen rpl_fdopen
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)
269 # define fdopen _fdopen
271 _GL_CXXALIAS_MDA (fdopen
, FILE *, (int fd
, const char *mode
));
273 _GL_CXXALIAS_SYS (fdopen
, FILE *, (int fd
, const char *mode
));
275 _GL_CXXALIASWARN (fdopen
);
276 #elif defined GNULIB_POSIXCHECK
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)
288 # define fdopen _fdopen
290 _GL_CXXALIAS_MDA (fdopen
, FILE *, (int fd
, const char *mode
));
292 _GL_CXXALIAS_SYS (fdopen
, FILE *, (int fd
, const char *mode
));
294 _GL_CXXALIASWARN (fdopen
);
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
308 _GL_FUNCDECL_RPL (fflush
, int, (FILE *gl_stream
));
309 _GL_CXXALIAS_RPL (fflush
, int, (FILE *gl_stream
));
311 _GL_CXXALIAS_SYS (fflush
, int, (FILE *gl_stream
));
314 _GL_CXXALIASWARN (fflush
);
316 #elif defined GNULIB_POSIXCHECK
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");
324 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
325 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
327 # define fgetc rpl_fgetc
329 _GL_FUNCDECL_RPL (fgetc
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
330 _GL_CXXALIAS_RPL (fgetc
, int, (FILE *stream
));
332 _GL_CXXALIAS_SYS (fgetc
, int, (FILE *stream
));
335 _GL_CXXALIASWARN (fgetc
);
340 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
341 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
343 # define fgets rpl_fgets
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
));
351 _GL_CXXALIAS_SYS (fgets
, char *,
352 (char *restrict s
, int n
, FILE *restrict stream
));
355 _GL_CXXALIASWARN (fgets
);
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)
366 # define fileno _fileno
368 _GL_CXXALIAS_MDA (fileno
, int, (FILE *restrict stream
));
370 _GL_CXXALIAS_SYS (fileno
, int, (FILE *restrict stream
));
372 _GL_CXXALIASWARN (fileno
);
377 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
379 # define fopen rpl_fopen
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
));
387 _GL_CXXALIAS_SYS (fopen
, FILE *,
388 (const char *restrict filename
, const char *restrict mode
));
391 _GL_CXXALIASWARN (fopen
);
393 #elif defined GNULIB_POSIXCHECK
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");
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
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)));
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)));
418 _GL_CXXALIAS_RPL (fprintf
, int,
419 (FILE *restrict fp
, const char *restrict format
, ...));
421 _GL_CXXALIAS_SYS (fprintf
, int,
422 (FILE *restrict fp
, const char *restrict format
, ...));
425 _GL_CXXALIASWARN (fprintf
);
428 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
429 # if !GNULIB_overrides_fprintf
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 "
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
449 _GL_FUNCDECL_RPL (fpurge
, int, (FILE *gl_stream
) _GL_ARG_NONNULL ((1)));
450 _GL_CXXALIAS_RPL (fpurge
, int, (FILE *gl_stream
));
452 # if !@HAVE_DECL_FPURGE@
453 _GL_FUNCDECL_SYS (fpurge
, int, (FILE *gl_stream
) _GL_ARG_NONNULL ((1)));
455 _GL_CXXALIAS_SYS (fpurge
, int, (FILE *gl_stream
));
457 _GL_CXXALIASWARN (fpurge
);
458 #elif defined GNULIB_POSIXCHECK
460 # if HAVE_RAW_DECL_FPURGE
461 _GL_WARN_ON_USE (fpurge
, "fpurge is not always present - "
462 "use gnulib module fpurge for portability");
467 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
468 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
470 # define fputc rpl_fputc
472 _GL_FUNCDECL_RPL (fputc
, int, (int c
, FILE *stream
) _GL_ARG_NONNULL ((2)));
473 _GL_CXXALIAS_RPL (fputc
, int, (int c
, FILE *stream
));
475 _GL_CXXALIAS_SYS (fputc
, int, (int c
, FILE *stream
));
478 _GL_CXXALIASWARN (fputc
);
483 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
484 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
486 # define fputs rpl_fputs
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
));
494 _GL_CXXALIAS_SYS (fputs
, int,
495 (const char *restrict string
, FILE *restrict stream
));
498 _GL_CXXALIASWARN (fputs
);
503 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
504 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
506 # define fread rpl_fread
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
));
516 _GL_CXXALIAS_SYS (fread
, size_t,
517 (void *restrict ptr
, size_t s
, size_t n
,
518 FILE *restrict stream
));
521 _GL_CXXALIASWARN (fread
);
526 # if @REPLACE_FREOPEN@
527 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
529 # define freopen rpl_freopen
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
));
539 _GL_CXXALIAS_SYS (freopen
, FILE *,
540 (const char *restrict filename
, const char *restrict mode
,
541 FILE *restrict stream
));
544 _GL_CXXALIASWARN (freopen
);
546 #elif defined GNULIB_POSIXCHECK
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");
555 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
556 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
558 # define fscanf rpl_fscanf
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
, ...));
567 _GL_CXXALIAS_SYS (fscanf
, int,
568 (FILE *restrict stream
, const char *restrict format
, ...));
571 _GL_CXXALIASWARN (fscanf
);
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
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.
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.
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.
604 Most gnulib clients that perform stream operations should fall into
608 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
609 # define _GL_FSEEK_WARN /* Category 2, above. */
613 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
615 # define fseek rpl_fseek
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
));
621 _GL_CXXALIAS_SYS (fseek
, int, (FILE *fp
, long offset
, int whence
));
624 _GL_CXXALIASWARN (fseek
);
629 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
630 # define _GL_FSEEK_WARN /* Category 3, above. */
633 # if @REPLACE_FSEEKO@
634 /* Provide an fseeko function that is aware of a preceding fflush(), and which
636 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
638 # define fseeko rpl_fseeko
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
));
644 # if ! @HAVE_DECL_FSEEKO@
645 _GL_FUNCDECL_SYS (fseeko
, int, (FILE *fp
, off_t offset
, int whence
)
646 _GL_ARG_NONNULL ((1)));
648 _GL_CXXALIAS_SYS (fseeko
, int, (FILE *fp
, off_t offset
, int whence
));
650 _GL_CXXALIASWARN (fseeko
);
651 #elif defined GNULIB_POSIXCHECK
652 # define _GL_FSEEK_WARN /* Category 1, above. */
655 # if HAVE_RAW_DECL_FSEEKO
656 _GL_WARN_ON_USE (fseeko
, "fseeko is unportable - "
657 "use gnulib module fseeko for portability");
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");
671 /* ftell, ftello. See the comments on fseek/fseeko. */
674 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
675 # define _GL_FTELL_WARN /* Category 2, above. */
679 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
681 # define ftell rpl_ftell
683 _GL_FUNCDECL_RPL (ftell
, long, (FILE *fp
) _GL_ARG_NONNULL ((1)));
684 _GL_CXXALIAS_RPL (ftell
, long, (FILE *fp
));
686 _GL_CXXALIAS_SYS (ftell
, long, (FILE *fp
));
689 _GL_CXXALIASWARN (ftell
);
694 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
695 # define _GL_FTELL_WARN /* Category 3, above. */
698 # if @REPLACE_FTELLO@
699 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
701 # define ftello rpl_ftello
703 _GL_FUNCDECL_RPL (ftello
, off_t
, (FILE *fp
) _GL_ARG_NONNULL ((1)));
704 _GL_CXXALIAS_RPL (ftello
, off_t
, (FILE *fp
));
706 # if ! @HAVE_DECL_FTELLO@
707 _GL_FUNCDECL_SYS (ftello
, off_t
, (FILE *fp
) _GL_ARG_NONNULL ((1)));
709 _GL_CXXALIAS_SYS (ftello
, off_t
, (FILE *fp
));
711 _GL_CXXALIASWARN (ftello
);
712 #elif defined GNULIB_POSIXCHECK
713 # define _GL_FTELL_WARN /* Category 1, above. */
716 # if HAVE_RAW_DECL_FTELLO
717 _GL_WARN_ON_USE (ftello
, "ftello is unportable - "
718 "use gnulib module ftello for portability");
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");
733 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
734 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
736 # define fwrite rpl_fwrite
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
));
746 _GL_CXXALIAS_SYS (fwrite
, size_t,
747 (const void *restrict ptr
, size_t s
, size_t n
,
748 FILE *restrict stream
));
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)
760 # undef fwrite_unlocked
761 extern size_t __REDIRECT (rpl_fwrite
,
762 (const void *__restrict
, size_t, size_t,
765 extern size_t __REDIRECT (rpl_fwrite_unlocked
,
766 (const void *__restrict
, size_t, size_t,
769 # define fwrite rpl_fwrite
770 # define fwrite_unlocked rpl_fwrite_unlocked
774 _GL_CXXALIASWARN (fwrite
);
779 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
780 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
782 # define getc rpl_fgetc
784 _GL_FUNCDECL_RPL (fgetc
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
785 _GL_CXXALIAS_RPL_1 (getc
, rpl_fgetc
, int, (FILE *stream
));
787 _GL_CXXALIAS_SYS (getc
, int, (FILE *stream
));
790 _GL_CXXALIASWARN (getc
);
795 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
796 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
798 # define getchar rpl_getchar
800 _GL_FUNCDECL_RPL (getchar
, int, (void));
801 _GL_CXXALIAS_RPL (getchar
, int, (void));
803 _GL_CXXALIAS_SYS (getchar
, int, (void));
806 _GL_CXXALIASWARN (getchar
);
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)
820 # define getdelim rpl_getdelim
822 _GL_FUNCDECL_RPL (getdelim
, ssize_t
,
823 (char **restrict lineptr
, size_t *restrict linesize
,
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
,
830 FILE *restrict stream
));
832 # if !@HAVE_DECL_GETDELIM@
833 _GL_FUNCDECL_SYS (getdelim
, ssize_t
,
834 (char **restrict lineptr
, size_t *restrict linesize
,
836 FILE *restrict stream
)
837 _GL_ARG_NONNULL ((1, 2, 4)));
839 _GL_CXXALIAS_SYS (getdelim
, ssize_t
,
840 (char **restrict lineptr
, size_t *restrict linesize
,
842 FILE *restrict stream
));
844 _GL_CXXALIASWARN (getdelim
);
845 #elif defined GNULIB_POSIXCHECK
847 # if HAVE_RAW_DECL_GETDELIM
848 _GL_WARN_ON_USE (getdelim
, "getdelim is unportable - "
849 "use gnulib module getdelim for portability");
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)
863 # define getline rpl_getline
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
));
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)));
879 _GL_CXXALIAS_SYS (getline
, ssize_t
,
880 (char **restrict lineptr
, size_t *restrict linesize
,
881 FILE *restrict stream
));
883 # if @HAVE_DECL_GETLINE@
884 _GL_CXXALIASWARN (getline
);
886 #elif defined GNULIB_POSIXCHECK
888 # if HAVE_RAW_DECL_GETLINE
889 _GL_WARN_ON_USE (getline
, "getline is unportable - "
890 "use gnulib module getline for portability");
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
898 #if HAVE_RAW_DECL_GETS && !defined __cplusplus
899 _GL_WARN_ON_USE (gets
, "gets is a security hole - use fgets instead");
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)
911 _GL_CXXALIAS_MDA (getw
, int, (FILE *restrict stream
));
913 _GL_CXXALIAS_SYS (getw
, int, (FILE *restrict stream
));
915 _GL_CXXALIASWARN (getw
);
918 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
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
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
, ...));
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)));
942 _GL_CXXALIAS_SYS (obstack_printf
, int,
943 (struct obstack
*obs
, const char *format
, ...));
945 _GL_CXXALIASWARN (obstack_printf
);
946 # if @REPLACE_OBSTACK_PRINTF@
947 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
948 # define obstack_vprintf rpl_obstack_vprintf
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
));
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)));
963 _GL_CXXALIAS_SYS (obstack_vprintf
, int,
964 (struct obstack
*obs
, const char *format
, va_list args
));
966 _GL_CXXALIASWARN (obstack_vprintf
);
971 _GL_FUNCDECL_SYS (pclose
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
973 _GL_CXXALIAS_SYS (pclose
, int, (FILE *stream
));
974 _GL_CXXALIASWARN (pclose
);
975 #elif defined GNULIB_POSIXCHECK
977 # if HAVE_RAW_DECL_PCLOSE
978 _GL_WARN_ON_USE (pclose
, "pclose is unportable - "
979 "use gnulib module pclose for more portability");
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
991 _GL_FUNCDECL_RPL (perror
, void, (const char *string
));
992 _GL_CXXALIAS_RPL (perror
, void, (const char *string
));
994 _GL_CXXALIAS_SYS (perror
, void, (const char *string
));
997 _GL_CXXALIASWARN (perror
);
999 #elif defined GNULIB_POSIXCHECK
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");
1007 # if @REPLACE_POPEN@
1008 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1010 # define popen rpl_popen
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
));
1017 _GL_FUNCDECL_SYS (popen
, FILE *, (const char *cmd
, const char *mode
)
1018 _GL_ARG_NONNULL ((1, 2)));
1020 _GL_CXXALIAS_SYS (popen
, FILE *, (const char *cmd
, const char *mode
));
1022 _GL_CXXALIASWARN (popen
);
1023 #elif defined GNULIB_POSIXCHECK
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");
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__
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)));
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)));
1054 _GL_CXXALIAS_RPL_1 (printf
, __printf__
, int, (const char *format
, ...));
1056 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1057 # define printf rpl_printf
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
, ...));
1065 # define GNULIB_overrides_printf 1
1067 _GL_CXXALIAS_SYS (printf
, int, (const char *restrict format
, ...));
1070 _GL_CXXALIASWARN (printf
);
1073 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1074 # if !GNULIB_overrides_printf
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");
1084 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1085 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1087 # define putc rpl_fputc
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
));
1092 _GL_CXXALIAS_SYS (putc
, int, (int c
, FILE *stream
));
1095 _GL_CXXALIASWARN (putc
);
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)
1103 # define putchar rpl_putchar
1105 _GL_FUNCDECL_RPL (putchar
, int, (int c
));
1106 _GL_CXXALIAS_RPL (putchar
, int, (int c
));
1108 _GL_CXXALIAS_SYS (putchar
, int, (int c
));
1111 _GL_CXXALIASWARN (putchar
);
1116 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1117 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1119 # define puts rpl_puts
1121 _GL_FUNCDECL_RPL (puts
, int, (const char *string
) _GL_ARG_NONNULL ((1)));
1122 _GL_CXXALIAS_RPL (puts
, int, (const char *string
));
1124 _GL_CXXALIAS_SYS (puts
, int, (const char *string
));
1127 _GL_CXXALIASWARN (puts
);
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)
1140 _GL_CXXALIAS_MDA (putw
, int, (int w
, FILE *restrict stream
));
1142 _GL_CXXALIAS_SYS (putw
, int, (int w
, FILE *restrict stream
));
1144 _GL_CXXALIASWARN (putw
);
1148 # if @REPLACE_REMOVE@
1149 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1151 # define remove rpl_remove
1153 _GL_FUNCDECL_RPL (remove
, int, (const char *name
) _GL_ARG_NONNULL ((1)));
1154 _GL_CXXALIAS_RPL (remove
, int, (const char *name
));
1156 _GL_CXXALIAS_SYS (remove
, int, (const char *name
));
1159 _GL_CXXALIASWARN (remove
);
1161 #elif defined GNULIB_POSIXCHECK
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");
1169 # if @REPLACE_RENAME@
1170 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1172 # define rename rpl_rename
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
));
1180 _GL_CXXALIAS_SYS (rename
, int,
1181 (const char *old_filename
, const char *new_filename
));
1184 _GL_CXXALIASWARN (rename
);
1186 #elif defined GNULIB_POSIXCHECK
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");
1193 #if @GNULIB_RENAMEAT@
1194 # if @REPLACE_RENAMEAT@
1195 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1197 # define renameat rpl_renameat
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
));
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)));
1210 _GL_CXXALIAS_SYS (renameat
, int,
1211 (int fd1
, char const *file1
, int fd2
, char const *file2
));
1213 _GL_CXXALIASWARN (renameat
);
1214 #elif defined GNULIB_POSIXCHECK
1216 # if HAVE_RAW_DECL_RENAMEAT
1217 _GL_WARN_ON_USE (renameat
, "renameat is not portable - "
1218 "use gnulib module renameat for portability");
1223 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1224 # if defined __GNUC__ || defined __clang__
1225 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1227 /* Don't break __attribute__((format(scanf,M,N))). */
1228 # define scanf __scanf__
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
, ...));
1238 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1240 # define scanf rpl_scanf
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
, ...));
1248 _GL_CXXALIAS_SYS (scanf
, int, (const char *restrict format
, ...));
1251 _GL_CXXALIASWARN (scanf
);
1255 #if @GNULIB_SNPRINTF@
1256 # if @REPLACE_SNPRINTF@
1257 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1258 # define snprintf rpl_snprintf
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
, ...));
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)));
1276 _GL_CXXALIAS_SYS (snprintf
, int,
1277 (char *restrict str
, size_t size
,
1278 const char *restrict format
, ...));
1281 _GL_CXXALIASWARN (snprintf
);
1283 #elif defined GNULIB_POSIXCHECK
1285 # if HAVE_RAW_DECL_SNPRINTF
1286 _GL_WARN_ON_USE (snprintf
, "snprintf is unportable - "
1287 "use gnulib module snprintf for portability");
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. */
1300 #if @GNULIB_SPRINTF_POSIX@
1301 # if @REPLACE_SPRINTF@
1302 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1303 # define sprintf rpl_sprintf
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
, ...));
1312 _GL_CXXALIAS_SYS (sprintf
, int,
1313 (char *restrict str
, const char *restrict format
, ...));
1316 _GL_CXXALIASWARN (sprintf
);
1318 #elif defined GNULIB_POSIXCHECK
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");
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)
1333 # define tempnam _tempnam
1335 _GL_CXXALIAS_MDA (tempnam
, char *, (const char *dir
, const char *prefix
));
1337 _GL_CXXALIAS_SYS (tempnam
, char *, (const char *dir
, const char *prefix
));
1339 _GL_CXXALIASWARN (tempnam
);
1342 #if @GNULIB_TMPFILE@
1343 # if @REPLACE_TMPFILE@
1344 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1345 # define tmpfile rpl_tmpfile
1347 _GL_FUNCDECL_RPL (tmpfile
, FILE *, (void));
1348 _GL_CXXALIAS_RPL (tmpfile
, FILE *, (void));
1350 _GL_CXXALIAS_SYS (tmpfile
, FILE *, (void));
1353 _GL_CXXALIASWARN (tmpfile
);
1355 #elif defined GNULIB_POSIXCHECK
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");
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
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
, ...));
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)));
1385 _GL_CXXALIAS_SYS (asprintf
, int,
1386 (char **result
, const char *format
, ...));
1388 _GL_CXXALIASWARN (asprintf
);
1389 # if @REPLACE_VASPRINTF@
1390 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1391 # define vasprintf rpl_vasprintf
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
));
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)));
1406 _GL_CXXALIAS_SYS (vasprintf
, int,
1407 (char **result
, const char *format
, va_list args
));
1409 _GL_CXXALIASWARN (vasprintf
);
1412 #if @GNULIB_VDPRINTF@
1413 # if @REPLACE_VDPRINTF@
1414 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1415 # define vdprintf rpl_vdprintf
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
));
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)));
1430 /* Need to cast, because on Solaris, the third parameter will likely be
1432 _GL_CXXALIAS_SYS_CAST (vdprintf
, int,
1433 (int fd
, const char *restrict format
, va_list args
));
1436 _GL_CXXALIASWARN (vdprintf
);
1438 #elif defined GNULIB_POSIXCHECK
1440 # if HAVE_RAW_DECL_VDPRINTF
1441 _GL_WARN_ON_USE (vdprintf
, "vdprintf is unportable - "
1442 "use gnulib module vdprintf for portability");
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
1452 # define GNULIB_overrides_vfprintf 1
1453 # if @GNULIB_VFPRINTF_POSIX@
1454 _GL_FUNCDECL_RPL (vfprintf
, int,
1456 const char *restrict format
, va_list args
)
1457 _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0)
1458 _GL_ARG_NONNULL ((1, 2)));
1460 _GL_FUNCDECL_RPL (vfprintf
, int,
1462 const char *restrict format
, va_list args
)
1463 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1464 _GL_ARG_NONNULL ((1, 2)));
1466 _GL_CXXALIAS_RPL (vfprintf
, int,
1468 const char *restrict format
, va_list args
));
1470 /* Need to cast, because on Solaris, the third parameter is
1472 and GCC's fixincludes did not change this to __gnuc_va_list. */
1473 _GL_CXXALIAS_SYS_CAST (vfprintf
, int,
1475 const char *restrict format
, va_list args
));
1478 _GL_CXXALIASWARN (vfprintf
);
1481 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1482 # if !GNULIB_overrides_vfprintf
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");
1491 #if @GNULIB_VFSCANF@
1492 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1493 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1495 # define vfscanf rpl_vfscanf
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
));
1506 _GL_CXXALIAS_SYS (vfscanf
, int,
1507 (FILE *restrict stream
,
1508 const char *restrict format
, va_list args
));
1511 _GL_CXXALIASWARN (vfscanf
);
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
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)));
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)));
1531 _GL_CXXALIAS_RPL (vprintf
, int, (const char *restrict format
, va_list args
));
1533 /* Need to cast, because on Solaris, the second parameter is
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
));
1540 _GL_CXXALIASWARN (vprintf
);
1543 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1544 # if !GNULIB_overrides_vprintf
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");
1554 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1555 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1557 # define vscanf rpl_vscanf
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
));
1564 _GL_CXXALIAS_SYS (vscanf
, int, (const char *restrict format
, va_list args
));
1567 _GL_CXXALIASWARN (vscanf
);
1571 #if @GNULIB_VSNPRINTF@
1572 # if @REPLACE_VSNPRINTF@
1573 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1574 # define vsnprintf rpl_vsnprintf
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
));
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)));
1592 _GL_CXXALIAS_SYS (vsnprintf
, int,
1593 (char *restrict str
, size_t size
,
1594 const char *restrict format
, va_list args
));
1597 _GL_CXXALIASWARN (vsnprintf
);
1599 #elif defined GNULIB_POSIXCHECK
1601 # if HAVE_RAW_DECL_VSNPRINTF
1602 _GL_WARN_ON_USE (vsnprintf
, "vsnprintf is unportable - "
1603 "use gnulib module vsnprintf for portability");
1607 #if @GNULIB_VSPRINTF_POSIX@
1608 # if @REPLACE_VSPRINTF@
1609 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1610 # define vsprintf rpl_vsprintf
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
));
1621 /* Need to cast, because on Solaris, the third parameter is
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
));
1629 _GL_CXXALIASWARN (vsprintf
);
1631 #elif defined GNULIB_POSIXCHECK
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");
1639 #endif /* _@GUARD_PREFIX@_STDIO_H */
1640 #endif /* _@GUARD_PREFIX@_STDIO_H */