gl/stdio.in.h

   1 /* A GNU-like <stdio.h>.
   2
   3    Copyright (C) 2004, 2007-2012 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #if __GNUC__ >= 3
  19 @PRAGMA_SYSTEM_HEADER@
  20 #endif
  21 @PRAGMA_COLUMNS@
  22
  23 #if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H
  24 /* Special invocation convention:
  25    - Inside glibc header files.
  26    - On OSF/1 5.1 we have a sequence of nested includes
  27      <stdio.h> -> <getopt.h> -> <ctype.h> -> <sys/localedef.h> ->
  28      <sys/lc_core.h> -> <nl_types.h> -> <mesg.h> -> <stdio.h>.
  29      In this situation, the functions are not yet declared, therefore we cannot
  30      provide the C++ aliases.  */
  31
  32 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  33
  34 #else
  35 /* Normal invocation convention.  */
  36
  37 #ifndef _@GUARD_PREFIX@_STDIO_H
  38
  39 #define _GL_ALREADY_INCLUDING_STDIO_H
  40
  41 /* The include_next requires a split double-inclusion guard.  */
  42 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  43
  44 #undef _GL_ALREADY_INCLUDING_STDIO_H
  45
  46 #ifndef _@GUARD_PREFIX@_STDIO_H
  47 #define _@GUARD_PREFIX@_STDIO_H
  48
  49 /* Get va_list.  Needed on many systems, including glibc 2.8.  */
  50 #include <stdarg.h>
  51
  52 #include <stddef.h>
  53
  54 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8
  55    and eglibc 2.11.2.  */
  56 #include <sys/types.h>
  57
  58 /* The __attribute__ feature is available in gcc versions 2.5 and later.
  59    The __-protected variants of the attributes 'format' and 'printf' are
  60    accepted by gcc versions 2.6.4 (effectively 2.7) and later.
  61    We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
  62    gnulib and libintl do '#define printf __printf__' when they override
  63    the 'printf' function.  */
  64 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
  65 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
  66 #else
  67 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
  68 #endif
  69
  70 /* _GL_ATTRIBUTE_FORMAT_PRINTF
  71    indicates to GCC that the function takes a format string and arguments,
  72    where the format string directives are the ones standardized by ISO C99
  73    and POSIX.  */
  74 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  75 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  76    _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
  77 #else
  78 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  79    _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  80 #endif
  81
  82 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
  83    except that it indicates to GCC that the supported format string directives
  84    are the ones of the system printf(), rather than the ones standardized by
  85    ISO C99 and POSIX.  */
  86 #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
  87   _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  88
  89 /* _GL_ATTRIBUTE_FORMAT_SCANF
  90    indicates to GCC that the function takes a format string and arguments,
  91    where the format string directives are the ones standardized by ISO C99
  92    and POSIX.  */
  93 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  94 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
  95    _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
  96 #else
  97 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
  98    _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
  99 #endif
 100
 101 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
 102    except that it indicates to GCC that the supported format string directives
 103    are the ones of the system scanf(), rather than the ones standardized by
 104    ISO C99 and POSIX.  */
 105 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
 106   _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 107
 108 /* Solaris 10 declares renameat in <unistd.h>, not in <stdio.h>.  */
 109 /* But in any case avoid namespace pollution on glibc systems.  */
 110 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __sun \
 111     && ! defined __GLIBC__
 112 # include <unistd.h>
 113 #endif
 114
 115
 116 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 117
 118 /* The definition of _GL_ARG_NONNULL is copied here.  */
 119
 120 /* The definition of _GL_WARN_ON_USE is copied here.  */
 121
 122 /* Macros for stringification.  */
 123 #define _GL_STDIO_STRINGIZE(token) #token
 124 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
 125
 126
 127 #if @GNULIB_DPRINTF@
 128 # if @REPLACE_DPRINTF@
 129 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 130 #   define dprintf rpl_dprintf
 131 #  endif
 132 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
 133                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 134                                 _GL_ARG_NONNULL ((2)));
 135 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
 136 # else
 137 #  if !@HAVE_DPRINTF@
 138 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
 139                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 140                                 _GL_ARG_NONNULL ((2)));
 141 #  endif
 142 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
 143 # endif
 144 _GL_CXXALIASWARN (dprintf);
 145 #elif defined GNULIB_POSIXCHECK
 146 # undef dprintf
 147 # if HAVE_RAW_DECL_DPRINTF
 148 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
 149                  "use gnulib module dprintf for portability");
 150 # endif
 151 #endif
 152
 153 #if @GNULIB_FCLOSE@
 154 /* Close STREAM and its underlying file descriptor.  */
 155 # if @REPLACE_FCLOSE@
 156 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 157 #   define fclose rpl_fclose
 158 #  endif
 159 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 160 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 161 # else
 162 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 163 # endif
 164 _GL_CXXALIASWARN (fclose);
 165 #elif defined GNULIB_POSIXCHECK
 166 # undef fclose
 167 /* Assume fclose is always declared.  */
 168 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 169                  "use gnulib module fclose for portable POSIX compliance");
 170 #endif
 171
 172 #if @GNULIB_FDOPEN@
 173 # if @REPLACE_FDOPEN@
 174 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 175 #   undef fdopen
 176 #   define fdopen rpl_fdopen
 177 #  endif
 178 _GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
 179                                   _GL_ARG_NONNULL ((2)));
 180 _GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
 181 # else
 182 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
 183 # endif
 184 _GL_CXXALIASWARN (fdopen);
 185 #elif defined GNULIB_POSIXCHECK
 186 # undef fdopen
 187 /* Assume fdopen is always declared.  */
 188 _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
 189                  "use gnulib module fdopen for portability");
 190 #endif
 191
 192 #if @GNULIB_FFLUSH@
 193 /* Flush all pending data on STREAM according to POSIX rules.  Both
 194    output and seekable input streams are supported.
 195    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 196    that is _not_seekable_ or on an update stream that is _not_seekable_
 197    and in which the most recent operation was input.  Seekability can
 198    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 199 # if @REPLACE_FFLUSH@
 200 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 201 #   define fflush rpl_fflush
 202 #  endif
 203 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 204 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 205 # else
 206 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 207 # endif
 208 _GL_CXXALIASWARN (fflush);
 209 #elif defined GNULIB_POSIXCHECK
 210 # undef fflush
 211 /* Assume fflush is always declared.  */
 212 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 213                  "use gnulib module fflush for portable POSIX compliance");
 214 #endif
 215
 216 #if @GNULIB_FGETC@
 217 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 218 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 219 #   undef fgetc
 220 #   define fgetc rpl_fgetc
 221 #  endif
 222 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 223 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
 224 # else
 225 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
 226 # endif
 227 _GL_CXXALIASWARN (fgetc);
 228 #endif
 229
 230 #if @GNULIB_FGETS@
 231 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 232 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 233 #   undef fgets
 234 #   define fgets rpl_fgets
 235 #  endif
 236 _GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
 237                                  _GL_ARG_NONNULL ((1, 3)));
 238 _GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
 239 # else
 240 _GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
 241 # endif
 242 _GL_CXXALIASWARN (fgets);
 243 #endif
 244
 245 #if @GNULIB_FOPEN@
 246 # if @REPLACE_FOPEN@
 247 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 248 #   undef fopen
 249 #   define fopen rpl_fopen
 250 #  endif
 251 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
 252                                  _GL_ARG_NONNULL ((1, 2)));
 253 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
 254 # else
 255 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
 256 # endif
 257 _GL_CXXALIASWARN (fopen);
 258 #elif defined GNULIB_POSIXCHECK
 259 # undef fopen
 260 /* Assume fopen is always declared.  */
 261 _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
 262                  "use gnulib module fopen for portability");
 263 #endif
 264
 265 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 266 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 267      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 268 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 269 #   define fprintf rpl_fprintf
 270 #  endif
 271 #  define GNULIB_overrides_fprintf 1
 272 #  if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 273 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 274                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 275                                 _GL_ARG_NONNULL ((1, 2)));
 276 #  else
 277 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 278                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
 279                                 _GL_ARG_NONNULL ((1, 2)));
 280 #  endif
 281 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
 282 # else
 283 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
 284 # endif
 285 _GL_CXXALIASWARN (fprintf);
 286 #endif
 287 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 288 # if !GNULIB_overrides_fprintf
 289 #  undef fprintf
 290 # endif
 291 /* Assume fprintf is always declared.  */
 292 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 293                  "use gnulib module fprintf-posix for portable "
 294                  "POSIX compliance");
 295 #endif
 296
 297 #if @GNULIB_FPURGE@
 298 /* Discard all pending buffered I/O data on STREAM.
 299    STREAM must not be wide-character oriented.
 300    When discarding pending output, the file position is set back to where it
 301    was before the write calls.  When discarding pending input, the file
 302    position is advanced to match the end of the previously read input.
 303    Return 0 if successful.  Upon error, return -1 and set errno.  */
 304 # if @REPLACE_FPURGE@
 305 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 306 #   define fpurge rpl_fpurge
 307 #  endif
 308 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 309 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 310 # else
 311 #  if !@HAVE_DECL_FPURGE@
 312 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 313 #  endif
 314 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 315 # endif
 316 _GL_CXXALIASWARN (fpurge);
 317 #elif defined GNULIB_POSIXCHECK
 318 # undef fpurge
 319 # if HAVE_RAW_DECL_FPURGE
 320 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 321                  "use gnulib module fpurge for portability");
 322 # endif
 323 #endif
 324
 325 #if @GNULIB_FPUTC@
 326 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 327 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 328 #   undef fputc
 329 #   define fputc rpl_fputc
 330 #  endif
 331 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 332 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 333 # else
 334 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 335 # endif
 336 _GL_CXXALIASWARN (fputc);
 337 #endif
 338
 339 #if @GNULIB_FPUTS@
 340 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 341 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 342 #   undef fputs
 343 #   define fputs rpl_fputs
 344 #  endif
 345 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
 346                               _GL_ARG_NONNULL ((1, 2)));
 347 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
 348 # else
 349 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
 350 # endif
 351 _GL_CXXALIASWARN (fputs);
 352 #endif
 353
 354 #if @GNULIB_FREAD@
 355 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 356 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 357 #   undef fread
 358 #   define fread rpl_fread
 359 #  endif
 360 _GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
 361                                  _GL_ARG_NONNULL ((4)));
 362 _GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 363 # else
 364 _GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 365 # endif
 366 _GL_CXXALIASWARN (fread);
 367 #endif
 368
 369 #if @GNULIB_FREOPEN@
 370 # if @REPLACE_FREOPEN@
 371 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 372 #   undef freopen
 373 #   define freopen rpl_freopen
 374 #  endif
 375 _GL_FUNCDECL_RPL (freopen, FILE *,
 376                   (const char *filename, const char *mode, FILE *stream)
 377                   _GL_ARG_NONNULL ((2, 3)));
 378 _GL_CXXALIAS_RPL (freopen, FILE *,
 379                   (const char *filename, const char *mode, FILE *stream));
 380 # else
 381 _GL_CXXALIAS_SYS (freopen, FILE *,
 382                   (const char *filename, const char *mode, FILE *stream));
 383 # endif
 384 _GL_CXXALIASWARN (freopen);
 385 #elif defined GNULIB_POSIXCHECK
 386 # undef freopen
 387 /* Assume freopen is always declared.  */
 388 _GL_WARN_ON_USE (freopen,
 389                  "freopen on native Windows platforms is not POSIX compliant - "
 390                  "use gnulib module freopen for portability");
 391 #endif
 392
 393 #if @GNULIB_FSCANF@
 394 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 395 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 396 #   undef fscanf
 397 #   define fscanf rpl_fscanf
 398 #  endif
 399 _GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
 400                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
 401                                _GL_ARG_NONNULL ((1, 2)));
 402 _GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
 403 # else
 404 _GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
 405 # endif
 406 _GL_CXXALIASWARN (fscanf);
 407 #endif
 408
 409
 410 /* Set up the following warnings, based on which modules are in use.
 411    GNU Coding Standards discourage the use of fseek, since it imposes
 412    an arbitrary limitation on some 32-bit hosts.  Remember that the
 413    fseek module depends on the fseeko module, so we only have three
 414    cases to consider:
 415
 416    1. The developer is not using either module.  Issue a warning under
 417    GNULIB_POSIXCHECK for both functions, to remind them that both
 418    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 419    impact on this warning.
 420
 421    2. The developer is using both modules.  They may be unaware of the
 422    arbitrary limitations of fseek, so issue a warning under
 423    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 424    modules intentionally, so the developer can define
 425    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 426    is safe, to silence the warning.
 427
 428    3. The developer is using the fseeko module, but not fseek.  Gnulib
 429    guarantees that fseek will still work around platform bugs in that
 430    case, but we presume that the developer is aware of the pitfalls of
 431    fseek and was trying to avoid it, so issue a warning even when
 432    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 433    defined to silence the warning in particular compilation units.
 434    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 435    fseek gets defined as a macro, it is recommended that the developer
 436    uses the fseek module, even if he is not calling the fseek function.
 437
 438    Most gnulib clients that perform stream operations should fall into
 439    category 3.  */
 440
 441 #if @GNULIB_FSEEK@
 442 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 443 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 444 #  undef fseek
 445 # endif
 446 # if @REPLACE_FSEEK@
 447 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 448 #   undef fseek
 449 #   define fseek rpl_fseek
 450 #  endif
 451 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 452                               _GL_ARG_NONNULL ((1)));
 453 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 454 # else
 455 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 456 # endif
 457 _GL_CXXALIASWARN (fseek);
 458 #endif
 459
 460 #if @GNULIB_FSEEKO@
 461 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 462 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 463 #  undef fseek
 464 # endif
 465 # if @REPLACE_FSEEKO@
 466 /* Provide an fseeko function that is aware of a preceding fflush(), and which
 467    detects pipes.  */
 468 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 469 #   undef fseeko
 470 #   define fseeko rpl_fseeko
 471 #  endif
 472 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 473                                _GL_ARG_NONNULL ((1)));
 474 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 475 # else
 476 #  if ! @HAVE_DECL_FSEEKO@
 477 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
 478                                _GL_ARG_NONNULL ((1)));
 479 #  endif
 480 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 481 # endif
 482 _GL_CXXALIASWARN (fseeko);
 483 #elif defined GNULIB_POSIXCHECK
 484 # define _GL_FSEEK_WARN /* Category 1, above.  */
 485 # undef fseek
 486 # undef fseeko
 487 # if HAVE_RAW_DECL_FSEEKO
 488 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 489                  "use gnulib module fseeko for portability");
 490 # endif
 491 #endif
 492
 493 #ifdef _GL_FSEEK_WARN
 494 # undef _GL_FSEEK_WARN
 495 /* Here, either fseek is undefined (but C89 guarantees that it is
 496    declared), or it is defined as rpl_fseek (declared above).  */
 497 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 498                  "on 32-bit platforms - "
 499                  "use fseeko function for handling of large files");
 500 #endif
 501
 502
 503 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 504
 505 #if @GNULIB_FTELL@
 506 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 507 #  define _GL_FTELL_WARN /* Category 2, above.  */
 508 #  undef ftell
 509 # endif
 510 # if @REPLACE_FTELL@
 511 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 512 #   undef ftell
 513 #   define ftell rpl_ftell
 514 #  endif
 515 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 516 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 517 # else
 518 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 519 # endif
 520 _GL_CXXALIASWARN (ftell);
 521 #endif
 522
 523 #if @GNULIB_FTELLO@
 524 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 525 #  define _GL_FTELL_WARN /* Category 3, above.  */
 526 #  undef ftell
 527 # endif
 528 # if @REPLACE_FTELLO@
 529 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 530 #   undef ftello
 531 #   define ftello rpl_ftello
 532 #  endif
 533 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 534 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 535 # else
 536 #  if ! @HAVE_DECL_FTELLO@
 537 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 538 #  endif
 539 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 540 # endif
 541 _GL_CXXALIASWARN (ftello);
 542 #elif defined GNULIB_POSIXCHECK
 543 # define _GL_FTELL_WARN /* Category 1, above.  */
 544 # undef ftell
 545 # undef ftello
 546 # if HAVE_RAW_DECL_FTELLO
 547 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 548                  "use gnulib module ftello for portability");
 549 # endif
 550 #endif
 551
 552 #ifdef _GL_FTELL_WARN
 553 # undef _GL_FTELL_WARN
 554 /* Here, either ftell is undefined (but C89 guarantees that it is
 555    declared), or it is defined as rpl_ftell (declared above).  */
 556 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 557                  "on 32-bit platforms - "
 558                  "use ftello function for handling of large files");
 559 #endif
 560
 561
 562 #if @GNULIB_FWRITE@
 563 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 564 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 565 #   undef fwrite
 566 #   define fwrite rpl_fwrite
 567 #  endif
 568 _GL_FUNCDECL_RPL (fwrite, size_t,
 569                   (const void *ptr, size_t s, size_t n, FILE *stream)
 570                   _GL_ARG_NONNULL ((1, 4)));
 571 _GL_CXXALIAS_RPL (fwrite, size_t,
 572                   (const void *ptr, size_t s, size_t n, FILE *stream));
 573 # else
 574 _GL_CXXALIAS_SYS (fwrite, size_t,
 575                   (const void *ptr, size_t s, size_t n, FILE *stream));
 576
 577 /* Work around glibc bug 11959
 578    <http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
 579    which sometimes causes an unwanted diagnostic for fwrite calls.
 580    This affects only function declaration attributes, so it's not
 581    needed for C++.  */
 582 #  if !defined __cplusplus && 0 < __USE_FORTIFY_LEVEL
 583 static inline size_t _GL_ARG_NONNULL ((1, 4))
 584 rpl_fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
 585 {
 586   size_t r = fwrite (ptr, s, n, stream);
 587   (void) r;
 588   return r;
 589 }
 590 #   undef fwrite
 591 #   define fwrite rpl_fwrite
 592 #  endif
 593 # endif
 594 _GL_CXXALIASWARN (fwrite);
 595 #endif
 596
 597 #if @GNULIB_GETC@
 598 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 599 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 600 #   undef getc
 601 #   define getc rpl_fgetc
 602 #  endif
 603 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 604 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
 605 # else
 606 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
 607 # endif
 608 _GL_CXXALIASWARN (getc);
 609 #endif
 610
 611 #if @GNULIB_GETCHAR@
 612 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 613 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 614 #   undef getchar
 615 #   define getchar rpl_getchar
 616 #  endif
 617 _GL_FUNCDECL_RPL (getchar, int, (void));
 618 _GL_CXXALIAS_RPL (getchar, int, (void));
 619 # else
 620 _GL_CXXALIAS_SYS (getchar, int, (void));
 621 # endif
 622 _GL_CXXALIASWARN (getchar);
 623 #endif
 624
 625 #if @GNULIB_GETDELIM@
 626 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 627    STREAM, store it in *LINEPTR (and NUL-terminate it).
 628    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 629    bytes of space.  It is realloc'd as necessary.
 630    Return the number of bytes read and stored at *LINEPTR (not including the
 631    NUL terminator), or -1 on error or EOF.  */
 632 # if @REPLACE_GETDELIM@
 633 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 634 #   undef getdelim
 635 #   define getdelim rpl_getdelim
 636 #  endif
 637 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 638                   (char **lineptr, size_t *linesize, int delimiter,
 639                    FILE *stream)
 640                   _GL_ARG_NONNULL ((1, 2, 4)));
 641 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 642                   (char **lineptr, size_t *linesize, int delimiter,
 643                    FILE *stream));
 644 # else
 645 #  if !@HAVE_DECL_GETDELIM@
 646 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 647                   (char **lineptr, size_t *linesize, int delimiter,
 648                    FILE *stream)
 649                   _GL_ARG_NONNULL ((1, 2, 4)));
 650 #  endif
 651 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 652                   (char **lineptr, size_t *linesize, int delimiter,
 653                    FILE *stream));
 654 # endif
 655 _GL_CXXALIASWARN (getdelim);
 656 #elif defined GNULIB_POSIXCHECK
 657 # undef getdelim
 658 # if HAVE_RAW_DECL_GETDELIM
 659 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 660                  "use gnulib module getdelim for portability");
 661 # endif
 662 #endif
 663
 664 #if @GNULIB_GETLINE@
 665 /* Read a line, up to (and including) the next newline, from STREAM, store it
 666    in *LINEPTR (and NUL-terminate it).
 667    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 668    bytes of space.  It is realloc'd as necessary.
 669    Return the number of bytes read and stored at *LINEPTR (not including the
 670    NUL terminator), or -1 on error or EOF.  */
 671 # if @REPLACE_GETLINE@
 672 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 673 #   undef getline
 674 #   define getline rpl_getline
 675 #  endif
 676 _GL_FUNCDECL_RPL (getline, ssize_t,
 677                   (char **lineptr, size_t *linesize, FILE *stream)
 678                   _GL_ARG_NONNULL ((1, 2, 3)));
 679 _GL_CXXALIAS_RPL (getline, ssize_t,
 680                   (char **lineptr, size_t *linesize, FILE *stream));
 681 # else
 682 #  if !@HAVE_DECL_GETLINE@
 683 _GL_FUNCDECL_SYS (getline, ssize_t,
 684                   (char **lineptr, size_t *linesize, FILE *stream)
 685                   _GL_ARG_NONNULL ((1, 2, 3)));
 686 #  endif
 687 _GL_CXXALIAS_SYS (getline, ssize_t,
 688                   (char **lineptr, size_t *linesize, FILE *stream));
 689 # endif
 690 # if @HAVE_DECL_GETLINE@
 691 _GL_CXXALIASWARN (getline);
 692 # endif
 693 #elif defined GNULIB_POSIXCHECK
 694 # undef getline
 695 # if HAVE_RAW_DECL_GETLINE
 696 _GL_WARN_ON_USE (getline, "getline is unportable - "
 697                  "use gnulib module getline for portability");
 698 # endif
 699 #endif
 700
 701 #if @GNULIB_GETS@
 702 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 703 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 704 #   undef gets
 705 #   define gets rpl_gets
 706 #  endif
 707 _GL_FUNCDECL_RPL (gets, char *, (char *s) _GL_ARG_NONNULL ((1)));
 708 _GL_CXXALIAS_RPL (gets, char *, (char *s));
 709 # else
 710 _GL_CXXALIAS_SYS (gets, char *, (char *s));
 711 #  undef gets
 712 # endif
 713 _GL_CXXALIASWARN (gets);
 714 /* It is very rare that the developer ever has full control of stdin,
 715    so any use of gets warrants an unconditional warning.  Assume it is
 716    always declared, since it is required by C89.  */
 717 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 718 #endif
 719
 720
 721 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 722 struct obstack;
 723 /* Grow an obstack with formatted output.  Return the number of
 724    bytes added to OBS.  No trailing nul byte is added, and the
 725    object should be closed with obstack_finish before use.  Upon
 726    memory allocation error, call obstack_alloc_failed_handler.  Upon
 727    other error, return -1.  */
 728 # if @REPLACE_OBSTACK_PRINTF@
 729 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 730 #   define obstack_printf rpl_obstack_printf
 731 #  endif
 732 _GL_FUNCDECL_RPL (obstack_printf, int,
 733                   (struct obstack *obs, const char *format, ...)
 734                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 735                   _GL_ARG_NONNULL ((1, 2)));
 736 _GL_CXXALIAS_RPL (obstack_printf, int,
 737                   (struct obstack *obs, const char *format, ...));
 738 # else
 739 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 740 _GL_FUNCDECL_SYS (obstack_printf, int,
 741                   (struct obstack *obs, const char *format, ...)
 742                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 743                   _GL_ARG_NONNULL ((1, 2)));
 744 #  endif
 745 _GL_CXXALIAS_SYS (obstack_printf, int,
 746                   (struct obstack *obs, const char *format, ...));
 747 # endif
 748 _GL_CXXALIASWARN (obstack_printf);
 749 # if @REPLACE_OBSTACK_PRINTF@
 750 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 751 #   define obstack_vprintf rpl_obstack_vprintf
 752 #  endif
 753 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 754                   (struct obstack *obs, const char *format, va_list args)
 755                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 756                   _GL_ARG_NONNULL ((1, 2)));
 757 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 758                   (struct obstack *obs, const char *format, va_list args));
 759 # else
 760 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 761 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 762                   (struct obstack *obs, const char *format, va_list args)
 763                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 764                   _GL_ARG_NONNULL ((1, 2)));
 765 #  endif
 766 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 767                   (struct obstack *obs, const char *format, va_list args));
 768 # endif
 769 _GL_CXXALIASWARN (obstack_vprintf);
 770 #endif
 771
 772 #if @GNULIB_PCLOSE@
 773 # if !@HAVE_PCLOSE@
 774 _GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 775 # endif
 776 _GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
 777 _GL_CXXALIASWARN (pclose);
 778 #elif defined GNULIB_POSIXCHECK
 779 # undef pclose
 780 # if HAVE_RAW_DECL_PCLOSE
 781 _GL_WARN_ON_USE (pclose, "pclose is unportable - "
 782                  "use gnulib module pclose for more portability");
 783 # endif
 784 #endif
 785
 786 #if @GNULIB_PERROR@
 787 /* Print a message to standard error, describing the value of ERRNO,
 788    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 789    and terminated with a newline.  */
 790 # if @REPLACE_PERROR@
 791 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 792 #   define perror rpl_perror
 793 #  endif
 794 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 795 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 796 # else
 797 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 798 # endif
 799 _GL_CXXALIASWARN (perror);
 800 #elif defined GNULIB_POSIXCHECK
 801 # undef perror
 802 /* Assume perror is always declared.  */
 803 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
 804                  "use gnulib module perror for portability");
 805 #endif
 806
 807 #if @GNULIB_POPEN@
 808 # if @REPLACE_POPEN@
 809 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 810 #   undef popen
 811 #   define popen rpl_popen
 812 #  endif
 813 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
 814                                  _GL_ARG_NONNULL ((1, 2)));
 815 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 816 # else
 817 #  if !@HAVE_POPEN@
 818 _GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
 819                                  _GL_ARG_NONNULL ((1, 2)));
 820 #  endif
 821 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 822 # endif
 823 _GL_CXXALIASWARN (popen);
 824 #elif defined GNULIB_POSIXCHECK
 825 # undef popen
 826 # if HAVE_RAW_DECL_POPEN
 827 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
 828                  "use gnulib module popen or pipe for more portability");
 829 # endif
 830 #endif
 831
 832 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
 833 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
 834      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 835 #  if defined __GNUC__
 836 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 837 /* Don't break __attribute__((format(printf,M,N))).  */
 838 #    define printf __printf__
 839 #   endif
 840 #   if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 841 _GL_FUNCDECL_RPL_1 (__printf__, int,
 842                     (const char *format, ...)
 843                     __asm__ (@ASM_SYMBOL_PREFIX@
 844                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 845                     _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 846                     _GL_ARG_NONNULL ((1)));
 847 #   else
 848 _GL_FUNCDECL_RPL_1 (__printf__, int,
 849                     (const char *format, ...)
 850                     __asm__ (@ASM_SYMBOL_PREFIX@
 851                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 852                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
 853                     _GL_ARG_NONNULL ((1)));
 854 #   endif
 855 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
 856 #  else
 857 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 858 #    define printf rpl_printf
 859 #   endif
 860 _GL_FUNCDECL_RPL (printf, int,
 861                   (const char *format, ...)
 862                   _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 863                   _GL_ARG_NONNULL ((1)));
 864 _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
 865 #  endif
 866 #  define GNULIB_overrides_printf 1
 867 # else
 868 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
 869 # endif
 870 _GL_CXXALIASWARN (printf);
 871 #endif
 872 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 873 # if !GNULIB_overrides_printf
 874 #  undef printf
 875 # endif
 876 /* Assume printf is always declared.  */
 877 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
 878                  "use gnulib module printf-posix for portable "
 879                  "POSIX compliance");
 880 #endif
 881
 882 #if @GNULIB_PUTC@
 883 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 884 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 885 #   undef putc
 886 #   define putc rpl_fputc
 887 #  endif
 888 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 889 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
 890 # else
 891 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
 892 # endif
 893 _GL_CXXALIASWARN (putc);
 894 #endif
 895
 896 #if @GNULIB_PUTCHAR@
 897 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 898 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 899 #   undef putchar
 900 #   define putchar rpl_putchar
 901 #  endif
 902 _GL_FUNCDECL_RPL (putchar, int, (int c));
 903 _GL_CXXALIAS_RPL (putchar, int, (int c));
 904 # else
 905 _GL_CXXALIAS_SYS (putchar, int, (int c));
 906 # endif
 907 _GL_CXXALIASWARN (putchar);
 908 #endif
 909
 910 #if @GNULIB_PUTS@
 911 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 912 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 913 #   undef puts
 914 #   define puts rpl_puts
 915 #  endif
 916 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
 917 _GL_CXXALIAS_RPL (puts, int, (const char *string));
 918 # else
 919 _GL_CXXALIAS_SYS (puts, int, (const char *string));
 920 # endif
 921 _GL_CXXALIASWARN (puts);
 922 #endif
 923
 924 #if @GNULIB_REMOVE@
 925 # if @REPLACE_REMOVE@
 926 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 927 #   undef remove
 928 #   define remove rpl_remove
 929 #  endif
 930 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
 931 _GL_CXXALIAS_RPL (remove, int, (const char *name));
 932 # else
 933 _GL_CXXALIAS_SYS (remove, int, (const char *name));
 934 # endif
 935 _GL_CXXALIASWARN (remove);
 936 #elif defined GNULIB_POSIXCHECK
 937 # undef remove
 938 /* Assume remove is always declared.  */
 939 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
 940                  "use gnulib module remove for more portability");
 941 #endif
 942
 943 #if @GNULIB_RENAME@
 944 # if @REPLACE_RENAME@
 945 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 946 #   undef rename
 947 #   define rename rpl_rename
 948 #  endif
 949 _GL_FUNCDECL_RPL (rename, int,
 950                   (const char *old_filename, const char *new_filename)
 951                   _GL_ARG_NONNULL ((1, 2)));
 952 _GL_CXXALIAS_RPL (rename, int,
 953                   (const char *old_filename, const char *new_filename));
 954 # else
 955 _GL_CXXALIAS_SYS (rename, int,
 956                   (const char *old_filename, const char *new_filename));
 957 # endif
 958 _GL_CXXALIASWARN (rename);
 959 #elif defined GNULIB_POSIXCHECK
 960 # undef rename
 961 /* Assume rename is always declared.  */
 962 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
 963                  "use gnulib module rename for more portability");
 964 #endif
 965
 966 #if @GNULIB_RENAMEAT@
 967 # if @REPLACE_RENAMEAT@
 968 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 969 #   undef renameat
 970 #   define renameat rpl_renameat
 971 #  endif
 972 _GL_FUNCDECL_RPL (renameat, int,
 973                   (int fd1, char const *file1, int fd2, char const *file2)
 974                   _GL_ARG_NONNULL ((2, 4)));
 975 _GL_CXXALIAS_RPL (renameat, int,
 976                   (int fd1, char const *file1, int fd2, char const *file2));
 977 # else
 978 #  if !@HAVE_RENAMEAT@
 979 _GL_FUNCDECL_SYS (renameat, int,
 980                   (int fd1, char const *file1, int fd2, char const *file2)
 981                   _GL_ARG_NONNULL ((2, 4)));
 982 #  endif
 983 _GL_CXXALIAS_SYS (renameat, int,
 984                   (int fd1, char const *file1, int fd2, char const *file2));
 985 # endif
 986 _GL_CXXALIASWARN (renameat);
 987 #elif defined GNULIB_POSIXCHECK
 988 # undef renameat
 989 # if HAVE_RAW_DECL_RENAMEAT
 990 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
 991                  "use gnulib module renameat for portability");
 992 # endif
 993 #endif
 994
 995 #if @GNULIB_SCANF@
 996 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 997 #  if defined __GNUC__
 998 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 999 #    undef scanf
1000 /* Don't break __attribute__((format(scanf,M,N))).  */
1001 #    define scanf __scanf__
1002 #   endif
1003 _GL_FUNCDECL_RPL_1 (__scanf__, int,
1004                     (const char *format, ...)
1005                     __asm__ (@ASM_SYMBOL_PREFIX@
1006                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1007                     _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1008                     _GL_ARG_NONNULL ((1)));
1009 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
1010 #  else
1011 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1012 #    undef scanf
1013 #    define scanf rpl_scanf
1014 #   endif
1015 _GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
1016                               _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1017                               _GL_ARG_NONNULL ((1)));
1018 _GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
1019 #  endif
1020 # else
1021 _GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
1022 # endif
1023 _GL_CXXALIASWARN (scanf);
1024 #endif
1025
1026 #if @GNULIB_SNPRINTF@
1027 # if @REPLACE_SNPRINTF@
1028 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1029 #   define snprintf rpl_snprintf
1030 #  endif
1031 _GL_FUNCDECL_RPL (snprintf, int,
1032                   (char *str, size_t size, const char *format, ...)
1033                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1034                   _GL_ARG_NONNULL ((3)));
1035 _GL_CXXALIAS_RPL (snprintf, int,
1036                   (char *str, size_t size, const char *format, ...));
1037 # else
1038 #  if !@HAVE_DECL_SNPRINTF@
1039 _GL_FUNCDECL_SYS (snprintf, int,
1040                   (char *str, size_t size, const char *format, ...)
1041                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1042                   _GL_ARG_NONNULL ((3)));
1043 #  endif
1044 _GL_CXXALIAS_SYS (snprintf, int,
1045                   (char *str, size_t size, const char *format, ...));
1046 # endif
1047 _GL_CXXALIASWARN (snprintf);
1048 #elif defined GNULIB_POSIXCHECK
1049 # undef snprintf
1050 # if HAVE_RAW_DECL_SNPRINTF
1051 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1052                  "use gnulib module snprintf for portability");
1053 # endif
1054 #endif
1055
1056 /* Some people would argue that sprintf should be handled like gets
1057    (for example, OpenBSD issues a link warning for both functions),
1058    since both can cause security holes due to buffer overruns.
1059    However, we believe that sprintf can be used safely, and is more
1060    efficient than snprintf in those safe cases; and as proof of our
1061    belief, we use sprintf in several gnulib modules.  So this header
1062    intentionally avoids adding a warning to sprintf except when
1063    GNULIB_POSIXCHECK is defined.  */
1064
1065 #if @GNULIB_SPRINTF_POSIX@
1066 # if @REPLACE_SPRINTF@
1067 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1068 #   define sprintf rpl_sprintf
1069 #  endif
1070 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1071                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1072                                 _GL_ARG_NONNULL ((1, 2)));
1073 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1074 # else
1075 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1076 # endif
1077 _GL_CXXALIASWARN (sprintf);
1078 #elif defined GNULIB_POSIXCHECK
1079 # undef sprintf
1080 /* Assume sprintf is always declared.  */
1081 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1082                  "use gnulib module sprintf-posix for portable "
1083                  "POSIX compliance");
1084 #endif
1085
1086 #if @GNULIB_TMPFILE@
1087 # if @REPLACE_TMPFILE@
1088 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1089 #   define tmpfile rpl_tmpfile
1090 #  endif
1091 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1092 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1093 # else
1094 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1095 # endif
1096 _GL_CXXALIASWARN (tmpfile);
1097 #elif defined GNULIB_POSIXCHECK
1098 # undef tmpfile
1099 # if HAVE_RAW_DECL_TMPFILE
1100 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1101                  "use gnulib module tmpfile for portability");
1102 # endif
1103 #endif
1104
1105 #if @GNULIB_VASPRINTF@
1106 /* Write formatted output to a string dynamically allocated with malloc().
1107    If the memory allocation succeeds, store the address of the string in
1108    *RESULT and return the number of resulting bytes, excluding the trailing
1109    NUL.  Upon memory allocation error, or some other error, return -1.  */
1110 # if @REPLACE_VASPRINTF@
1111 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1112 #   define asprintf rpl_asprintf
1113 #  endif
1114 _GL_FUNCDECL_RPL (asprintf, int,
1115                   (char **result, const char *format, ...)
1116                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1117                   _GL_ARG_NONNULL ((1, 2)));
1118 _GL_CXXALIAS_RPL (asprintf, int,
1119                   (char **result, const char *format, ...));
1120 # else
1121 #  if !@HAVE_VASPRINTF@
1122 _GL_FUNCDECL_SYS (asprintf, int,
1123                   (char **result, const char *format, ...)
1124                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1125                   _GL_ARG_NONNULL ((1, 2)));
1126 #  endif
1127 _GL_CXXALIAS_SYS (asprintf, int,
1128                   (char **result, const char *format, ...));
1129 # endif
1130 _GL_CXXALIASWARN (asprintf);
1131 # if @REPLACE_VASPRINTF@
1132 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1133 #   define vasprintf rpl_vasprintf
1134 #  endif
1135 _GL_FUNCDECL_RPL (vasprintf, int,
1136                   (char **result, const char *format, va_list args)
1137                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1138                   _GL_ARG_NONNULL ((1, 2)));
1139 _GL_CXXALIAS_RPL (vasprintf, int,
1140                   (char **result, const char *format, va_list args));
1141 # else
1142 #  if !@HAVE_VASPRINTF@
1143 _GL_FUNCDECL_SYS (vasprintf, int,
1144                   (char **result, const char *format, va_list args)
1145                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1146                   _GL_ARG_NONNULL ((1, 2)));
1147 #  endif
1148 _GL_CXXALIAS_SYS (vasprintf, int,
1149                   (char **result, const char *format, va_list args));
1150 # endif
1151 _GL_CXXALIASWARN (vasprintf);
1152 #endif
1153
1154 #if @GNULIB_VDPRINTF@
1155 # if @REPLACE_VDPRINTF@
1156 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1157 #   define vdprintf rpl_vdprintf
1158 #  endif
1159 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1160                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1161                                  _GL_ARG_NONNULL ((2)));
1162 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1163 # else
1164 #  if !@HAVE_VDPRINTF@
1165 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1166                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1167                                  _GL_ARG_NONNULL ((2)));
1168 #  endif
1169 /* Need to cast, because on Solaris, the third parameter will likely be
1170                                                     __va_list args.  */
1171 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
1172                        (int fd, const char *format, va_list args));
1173 # endif
1174 _GL_CXXALIASWARN (vdprintf);
1175 #elif defined GNULIB_POSIXCHECK
1176 # undef vdprintf
1177 # if HAVE_RAW_DECL_VDPRINTF
1178 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1179                  "use gnulib module vdprintf for portability");
1180 # endif
1181 #endif
1182
1183 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1184 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1185      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1186 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1187 #   define vfprintf rpl_vfprintf
1188 #  endif
1189 #  define GNULIB_overrides_vfprintf 1
1190 #  if @GNULIB_VFPRINTF_POSIX@
1191 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1192                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1193                                  _GL_ARG_NONNULL ((1, 2)));
1194 #  else
1195 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1196                                  _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1197                                  _GL_ARG_NONNULL ((1, 2)));
1198 #  endif
1199 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1200 # else
1201 /* Need to cast, because on Solaris, the third parameter is
1202                                                       __va_list args
1203    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1204 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1205                        (FILE *fp, const char *format, va_list args));
1206 # endif
1207 _GL_CXXALIASWARN (vfprintf);
1208 #endif
1209 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1210 # if !GNULIB_overrides_vfprintf
1211 #  undef vfprintf
1212 # endif
1213 /* Assume vfprintf is always declared.  */
1214 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1215                  "use gnulib module vfprintf-posix for portable "
1216                       "POSIX compliance");
1217 #endif
1218
1219 #if @GNULIB_VFSCANF@
1220 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1221 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1222 #   undef vfscanf
1223 #   define vfscanf rpl_vfscanf
1224 #  endif
1225 _GL_FUNCDECL_RPL (vfscanf, int,
1226                   (FILE *stream, const char *format, va_list args)
1227                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1228                   _GL_ARG_NONNULL ((1, 2)));
1229 _GL_CXXALIAS_RPL (vfscanf, int,
1230                   (FILE *stream, const char *format, va_list args));
1231 # else
1232 _GL_CXXALIAS_SYS (vfscanf, int,
1233                   (FILE *stream, const char *format, va_list args));
1234 # endif
1235 _GL_CXXALIASWARN (vfscanf);
1236 #endif
1237
1238 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1239 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1240      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1241 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1242 #   define vprintf rpl_vprintf
1243 #  endif
1244 #  define GNULIB_overrides_vprintf 1
1245 #  if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1246 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1247                                 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1248                                 _GL_ARG_NONNULL ((1)));
1249 #  else
1250 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1251                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1252                                 _GL_ARG_NONNULL ((1)));
1253 #  endif
1254 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1255 # else
1256 /* Need to cast, because on Solaris, the second parameter is
1257                                                           __va_list args
1258    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1259 _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1260 # endif
1261 _GL_CXXALIASWARN (vprintf);
1262 #endif
1263 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1264 # if !GNULIB_overrides_vprintf
1265 #  undef vprintf
1266 # endif
1267 /* Assume vprintf is always declared.  */
1268 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1269                  "use gnulib module vprintf-posix for portable "
1270                  "POSIX compliance");
1271 #endif
1272
1273 #if @GNULIB_VSCANF@
1274 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1275 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1276 #   undef vscanf
1277 #   define vscanf rpl_vscanf
1278 #  endif
1279 _GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1280                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1281                                _GL_ARG_NONNULL ((1)));
1282 _GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1283 # else
1284 _GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1285 # endif
1286 _GL_CXXALIASWARN (vscanf);
1287 #endif
1288
1289 #if @GNULIB_VSNPRINTF@
1290 # if @REPLACE_VSNPRINTF@
1291 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1292 #   define vsnprintf rpl_vsnprintf
1293 #  endif
1294 _GL_FUNCDECL_RPL (vsnprintf, int,
1295                   (char *str, size_t size, const char *format, va_list args)
1296                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1297                   _GL_ARG_NONNULL ((3)));
1298 _GL_CXXALIAS_RPL (vsnprintf, int,
1299                   (char *str, size_t size, const char *format, va_list args));
1300 # else
1301 #  if !@HAVE_DECL_VSNPRINTF@
1302 _GL_FUNCDECL_SYS (vsnprintf, int,
1303                   (char *str, size_t size, const char *format, va_list args)
1304                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1305                   _GL_ARG_NONNULL ((3)));
1306 #  endif
1307 _GL_CXXALIAS_SYS (vsnprintf, int,
1308                   (char *str, size_t size, const char *format, va_list args));
1309 # endif
1310 _GL_CXXALIASWARN (vsnprintf);
1311 #elif defined GNULIB_POSIXCHECK
1312 # undef vsnprintf
1313 # if HAVE_RAW_DECL_VSNPRINTF
1314 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1315                  "use gnulib module vsnprintf for portability");
1316 # endif
1317 #endif
1318
1319 #if @GNULIB_VSPRINTF_POSIX@
1320 # if @REPLACE_VSPRINTF@
1321 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1322 #   define vsprintf rpl_vsprintf
1323 #  endif
1324 _GL_FUNCDECL_RPL (vsprintf, int,
1325                   (char *str, const char *format, va_list args)
1326                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1327                   _GL_ARG_NONNULL ((1, 2)));
1328 _GL_CXXALIAS_RPL (vsprintf, int,
1329                   (char *str, const char *format, va_list args));
1330 # else
1331 /* Need to cast, because on Solaris, the third parameter is
1332                                                        __va_list args
1333    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1334 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1335                        (char *str, const char *format, va_list args));
1336 # endif
1337 _GL_CXXALIASWARN (vsprintf);
1338 #elif defined GNULIB_POSIXCHECK
1339 # undef vsprintf
1340 /* Assume vsprintf is always declared.  */
1341 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1342                  "use gnulib module vsprintf-posix for portable "
1343                       "POSIX compliance");
1344 #endif
1345
1346
1347 #endif /* _@GUARD_PREFIX@_STDIO_H */
1348 #endif /* _@GUARD_PREFIX@_STDIO_H */
1349 #endif