lib/stdio.in.h

   1 /* A GNU-like <stdio.h>.
   2
   3    Copyright (C) 2004, 2007-2011 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 Lesser General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #if __GNUC__ >= 3
  20 @PRAGMA_SYSTEM_HEADER@
  21 #endif
  22 @PRAGMA_COLUMNS@
  23
  24 #if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H
  25 /* Special invocation convention:
  26    - Inside glibc header files.
  27    - On OSF/1 5.1 we have a sequence of nested includes
  28      <stdio.h> -> <getopt.h> -> <ctype.h> -> <sys/localedef.h> ->
  29      <sys/lc_core.h> -> <nl_types.h> -> <mesg.h> -> <stdio.h>.
  30      In this situation, the functions are not yet declared, therefore we cannot
  31      provide the C++ aliases.  */
  32
  33 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  34
  35 #else
  36 /* Normal invocation convention.  */
  37
  38 #ifndef _@GUARD_PREFIX@_STDIO_H
  39
  40 #define _GL_ALREADY_INCLUDING_STDIO_H
  41
  42 /* The include_next requires a split double-inclusion guard.  */
  43 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
  44
  45 #undef _GL_ALREADY_INCLUDING_STDIO_H
  46
  47 #ifndef _@GUARD_PREFIX@_STDIO_H
  48 #define _@GUARD_PREFIX@_STDIO_H
  49
  50 /* Get va_list.  Needed on many systems, including glibc 2.8.  */
  51 #include <stdarg.h>
  52
  53 #include <stddef.h>
  54
  55 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8
  56    and eglibc 2.11.2.  */
  57 #include <sys/types.h>
  58
  59 /* The __attribute__ feature is available in gcc versions 2.5 and later.
  60    The __-protected variants of the attributes 'format' and 'printf' are
  61    accepted by gcc versions 2.6.4 (effectively 2.7) and later.
  62    We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
  63    gnulib and libintl do '#define printf __printf__' when they override
  64    the 'printf' function.  */
  65 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
  66 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
  67 #else
  68 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
  69 #endif
  70
  71 /* _GL_ATTRIBUTE_FORMAT_PRINTF
  72    indicates to GCC that the function takes a format string and arguments,
  73    where the format string directives are the ones standardized by ISO C99
  74    and POSIX.  */
  75 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  76 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  77    _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
  78 #else
  79 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
  80    _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  81 #endif
  82
  83 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
  84    except that it indicates to GCC that the supported format string directives
  85    are the ones of the system printf(), rather than the ones standardized by
  86    ISO C99 and POSIX.  */
  87 #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
  88   _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
  89
  90 /* _GL_ATTRIBUTE_FORMAT_SCANF
  91    indicates to GCC that the function takes a format string and arguments,
  92    where the format string directives are the ones standardized by ISO C99
  93    and POSIX.  */
  94 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
  95 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
  96    _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
  97 #else
  98 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
  99    _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 100 #endif
 101
 102 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
 103    except that it indicates to GCC that the supported format string directives
 104    are the ones of the system scanf(), rather than the ones standardized by
 105    ISO C99 and POSIX.  */
 106 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
 107   _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
 108
 109 /* Solaris 10 declares renameat in <unistd.h>, not in <stdio.h>.  */
 110 /* But in any case avoid namespace pollution on glibc systems.  */
 111 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __sun \
 112     && ! defined __GLIBC__
 113 # include <unistd.h>
 114 #endif
 115
 116
 117 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 118
 119 /* The definition of _GL_ARG_NONNULL is copied here.  */
 120
 121 /* The definition of _GL_WARN_ON_USE is copied here.  */
 122
 123 /* Macros for stringification.  */
 124 #define _GL_STDIO_STRINGIZE(token) #token
 125 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
 126
 127
 128 #if @GNULIB_DPRINTF@
 129 # if @REPLACE_DPRINTF@
 130 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 131 #   define dprintf rpl_dprintf
 132 #  endif
 133 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
 134                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 135                                 _GL_ARG_NONNULL ((2)));
 136 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
 137 # else
 138 #  if !@HAVE_DPRINTF@
 139 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
 140                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 141                                 _GL_ARG_NONNULL ((2)));
 142 #  endif
 143 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
 144 # endif
 145 _GL_CXXALIASWARN (dprintf);
 146 #elif defined GNULIB_POSIXCHECK
 147 # undef dprintf
 148 # if HAVE_RAW_DECL_DPRINTF
 149 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
 150                  "use gnulib module dprintf for portability");
 151 # endif
 152 #endif
 153
 154 #if @GNULIB_FCLOSE@
 155 /* Close STREAM and its underlying file descriptor.  */
 156 # if @REPLACE_FCLOSE@
 157 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 158 #   define fclose rpl_fclose
 159 #  endif
 160 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 161 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
 162 # else
 163 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
 164 # endif
 165 _GL_CXXALIASWARN (fclose);
 166 #elif defined GNULIB_POSIXCHECK
 167 # undef fclose
 168 /* Assume fclose is always declared.  */
 169 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
 170                  "use gnulib module fclose for portable POSIX compliance");
 171 #endif
 172
 173 #if @GNULIB_FFLUSH@
 174 /* Flush all pending data on STREAM according to POSIX rules.  Both
 175    output and seekable input streams are supported.
 176    Note! LOSS OF DATA can occur if fflush is applied on an input stream
 177    that is _not_seekable_ or on an update stream that is _not_seekable_
 178    and in which the most recent operation was input.  Seekability can
 179    be tested with lseek(fileno(fp),0,SEEK_CUR).  */
 180 # if @REPLACE_FFLUSH@
 181 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 182 #   define fflush rpl_fflush
 183 #  endif
 184 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
 185 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
 186 # else
 187 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
 188 # endif
 189 _GL_CXXALIASWARN (fflush);
 190 #elif defined GNULIB_POSIXCHECK
 191 # undef fflush
 192 /* Assume fflush is always declared.  */
 193 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
 194                  "use gnulib module fflush for portable POSIX compliance");
 195 #endif
 196
 197 #if @GNULIB_FGETC@
 198 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 199 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 200 #   undef fgetc
 201 #   define fgetc rpl_fgetc
 202 #  endif
 203 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 204 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
 205 # else
 206 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
 207 # endif
 208 _GL_CXXALIASWARN (fgetc);
 209 #endif
 210
 211 #if @GNULIB_FGETS@
 212 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 213 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 214 #   undef fgets
 215 #   define fgets rpl_fgets
 216 #  endif
 217 _GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
 218                                  _GL_ARG_NONNULL ((1, 3)));
 219 _GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
 220 # else
 221 _GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
 222 # endif
 223 _GL_CXXALIASWARN (fgets);
 224 #endif
 225
 226 #if @GNULIB_FOPEN@
 227 # if @REPLACE_FOPEN@
 228 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 229 #   undef fopen
 230 #   define fopen rpl_fopen
 231 #  endif
 232 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
 233                                  _GL_ARG_NONNULL ((1, 2)));
 234 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
 235 # else
 236 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
 237 # endif
 238 _GL_CXXALIASWARN (fopen);
 239 #elif defined GNULIB_POSIXCHECK
 240 # undef fopen
 241 /* Assume fopen is always declared.  */
 242 _GL_WARN_ON_USE (fopen, "fopen on Win32 platforms is not POSIX compatible - "
 243                  "use gnulib module fopen for portability");
 244 #endif
 245
 246 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
 247 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
 248      || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 249 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 250 #   define fprintf rpl_fprintf
 251 #  endif
 252 #  define GNULIB_overrides_fprintf 1
 253 #  if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 254 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 255                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 256                                 _GL_ARG_NONNULL ((1, 2)));
 257 #  else
 258 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
 259                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
 260                                 _GL_ARG_NONNULL ((1, 2)));
 261 #  endif
 262 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
 263 # else
 264 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
 265 # endif
 266 _GL_CXXALIASWARN (fprintf);
 267 #endif
 268 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 269 # if !GNULIB_overrides_fprintf
 270 #  undef fprintf
 271 # endif
 272 /* Assume fprintf is always declared.  */
 273 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
 274                  "use gnulib module fprintf-posix for portable "
 275                  "POSIX compliance");
 276 #endif
 277
 278 #if @GNULIB_FPURGE@
 279 /* Discard all pending buffered I/O data on STREAM.
 280    STREAM must not be wide-character oriented.
 281    When discarding pending output, the file position is set back to where it
 282    was before the write calls.  When discarding pending input, the file
 283    position is advanced to match the end of the previously read input.
 284    Return 0 if successful.  Upon error, return -1 and set errno.  */
 285 # if @REPLACE_FPURGE@
 286 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 287 #   define fpurge rpl_fpurge
 288 #  endif
 289 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 290 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
 291 # else
 292 #  if !@HAVE_DECL_FPURGE@
 293 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
 294 #  endif
 295 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
 296 # endif
 297 _GL_CXXALIASWARN (fpurge);
 298 #elif defined GNULIB_POSIXCHECK
 299 # undef fpurge
 300 # if HAVE_RAW_DECL_FPURGE
 301 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
 302                  "use gnulib module fpurge for portability");
 303 # endif
 304 #endif
 305
 306 #if @GNULIB_FPUTC@
 307 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 308 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 309 #   undef fputc
 310 #   define fputc rpl_fputc
 311 #  endif
 312 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 313 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
 314 # else
 315 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
 316 # endif
 317 _GL_CXXALIASWARN (fputc);
 318 #endif
 319
 320 #if @GNULIB_FPUTS@
 321 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 322 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 323 #   undef fputs
 324 #   define fputs rpl_fputs
 325 #  endif
 326 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
 327                               _GL_ARG_NONNULL ((1, 2)));
 328 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
 329 # else
 330 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
 331 # endif
 332 _GL_CXXALIASWARN (fputs);
 333 #endif
 334
 335 #if @GNULIB_FREAD@
 336 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 337 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 338 #   undef fread
 339 #   define fread rpl_fread
 340 #  endif
 341 _GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
 342                                  _GL_ARG_NONNULL ((4)));
 343 _GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 344 # else
 345 _GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
 346 # endif
 347 _GL_CXXALIASWARN (fread);
 348 #endif
 349
 350 #if @GNULIB_FREOPEN@
 351 # if @REPLACE_FREOPEN@
 352 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 353 #   undef freopen
 354 #   define freopen rpl_freopen
 355 #  endif
 356 _GL_FUNCDECL_RPL (freopen, FILE *,
 357                   (const char *filename, const char *mode, FILE *stream)
 358                   _GL_ARG_NONNULL ((2, 3)));
 359 _GL_CXXALIAS_RPL (freopen, FILE *,
 360                   (const char *filename, const char *mode, FILE *stream));
 361 # else
 362 _GL_CXXALIAS_SYS (freopen, FILE *,
 363                   (const char *filename, const char *mode, FILE *stream));
 364 # endif
 365 _GL_CXXALIASWARN (freopen);
 366 #elif defined GNULIB_POSIXCHECK
 367 # undef freopen
 368 /* Assume freopen is always declared.  */
 369 _GL_WARN_ON_USE (freopen,
 370                  "freopen on Win32 platforms is not POSIX compatible - "
 371                  "use gnulib module freopen for portability");
 372 #endif
 373
 374 #if @GNULIB_FSCANF@
 375 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 376 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 377 #   undef fscanf
 378 #   define fscanf rpl_fscanf
 379 #  endif
 380 _GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
 381                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
 382                                _GL_ARG_NONNULL ((1, 2)));
 383 _GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
 384 # else
 385 _GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
 386 # endif
 387 _GL_CXXALIASWARN (fscanf);
 388 #endif
 389
 390
 391 /* Set up the following warnings, based on which modules are in use.
 392    GNU Coding Standards discourage the use of fseek, since it imposes
 393    an arbitrary limitation on some 32-bit hosts.  Remember that the
 394    fseek module depends on the fseeko module, so we only have three
 395    cases to consider:
 396
 397    1. The developer is not using either module.  Issue a warning under
 398    GNULIB_POSIXCHECK for both functions, to remind them that both
 399    functions have bugs on some systems.  _GL_NO_LARGE_FILES has no
 400    impact on this warning.
 401
 402    2. The developer is using both modules.  They may be unaware of the
 403    arbitrary limitations of fseek, so issue a warning under
 404    GNULIB_POSIXCHECK.  On the other hand, they may be using both
 405    modules intentionally, so the developer can define
 406    _GL_NO_LARGE_FILES in the compilation units where the use of fseek
 407    is safe, to silence the warning.
 408
 409    3. The developer is using the fseeko module, but not fseek.  Gnulib
 410    guarantees that fseek will still work around platform bugs in that
 411    case, but we presume that the developer is aware of the pitfalls of
 412    fseek and was trying to avoid it, so issue a warning even when
 413    GNULIB_POSIXCHECK is undefined.  Again, _GL_NO_LARGE_FILES can be
 414    defined to silence the warning in particular compilation units.
 415    In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
 416    fseek gets defined as a macro, it is recommended that the developer
 417    uses the fseek module, even if he is not calling the fseek function.
 418
 419    Most gnulib clients that perform stream operations should fall into
 420    category 3.  */
 421
 422 #if @GNULIB_FSEEK@
 423 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 424 #  define _GL_FSEEK_WARN /* Category 2, above.  */
 425 #  undef fseek
 426 # endif
 427 # if @REPLACE_FSEEK@
 428 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 429 #   undef fseek
 430 #   define fseek rpl_fseek
 431 #  endif
 432 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
 433                               _GL_ARG_NONNULL ((1)));
 434 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
 435 # else
 436 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
 437 # endif
 438 _GL_CXXALIASWARN (fseek);
 439 #endif
 440
 441 #if @GNULIB_FSEEKO@
 442 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
 443 #  define _GL_FSEEK_WARN /* Category 3, above.  */
 444 #  undef fseek
 445 # endif
 446 # if @REPLACE_FSEEKO@
 447 /* Provide an fseeko function that is aware of a preceding fflush(), and which
 448    detects pipes.  */
 449 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 450 #   undef fseeko
 451 #   define fseeko rpl_fseeko
 452 #  endif
 453 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
 454                                _GL_ARG_NONNULL ((1)));
 455 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 456 # else
 457 #  if ! @HAVE_DECL_FSEEKO@
 458 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
 459                                _GL_ARG_NONNULL ((1)));
 460 #  endif
 461 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
 462 # endif
 463 _GL_CXXALIASWARN (fseeko);
 464 #elif defined GNULIB_POSIXCHECK
 465 # define _GL_FSEEK_WARN /* Category 1, above.  */
 466 # undef fseek
 467 # undef fseeko
 468 # if HAVE_RAW_DECL_FSEEKO
 469 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
 470                  "use gnulib module fseeko for portability");
 471 # endif
 472 #endif
 473
 474 #ifdef _GL_FSEEK_WARN
 475 # undef _GL_FSEEK_WARN
 476 /* Here, either fseek is undefined (but C89 guarantees that it is
 477    declared), or it is defined as rpl_fseek (declared above).  */
 478 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
 479                  "on 32-bit platforms - "
 480                  "use fseeko function for handling of large files");
 481 #endif
 482
 483
 484 /* ftell, ftello.  See the comments on fseek/fseeko.  */
 485
 486 #if @GNULIB_FTELL@
 487 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
 488 #  define _GL_FTELL_WARN /* Category 2, above.  */
 489 #  undef ftell
 490 # endif
 491 # if @REPLACE_FTELL@
 492 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 493 #   undef ftell
 494 #   define ftell rpl_ftell
 495 #  endif
 496 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
 497 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
 498 # else
 499 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
 500 # endif
 501 _GL_CXXALIASWARN (ftell);
 502 #endif
 503
 504 #if @GNULIB_FTELLO@
 505 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
 506 #  define _GL_FTELL_WARN /* Category 3, above.  */
 507 #  undef ftell
 508 # endif
 509 # if @REPLACE_FTELLO@
 510 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 511 #   undef ftello
 512 #   define ftello rpl_ftello
 513 #  endif
 514 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 515 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 516 # else
 517 #  if ! @HAVE_DECL_FTELLO@
 518 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 519 #  endif
 520 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
 521 # endif
 522 _GL_CXXALIASWARN (ftello);
 523 #elif defined GNULIB_POSIXCHECK
 524 # define _GL_FTELL_WARN /* Category 1, above.  */
 525 # undef ftell
 526 # undef ftello
 527 # if HAVE_RAW_DECL_FTELLO
 528 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
 529                  "use gnulib module ftello for portability");
 530 # endif
 531 #endif
 532
 533 #ifdef _GL_FTELL_WARN
 534 # undef _GL_FTELL_WARN
 535 /* Here, either ftell is undefined (but C89 guarantees that it is
 536    declared), or it is defined as rpl_ftell (declared above).  */
 537 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
 538                  "on 32-bit platforms - "
 539                  "use ftello function for handling of large files");
 540 #endif
 541
 542
 543 #if @GNULIB_FWRITE@
 544 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 545 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 546 #   undef fwrite
 547 #   define fwrite rpl_fwrite
 548 #  endif
 549 _GL_FUNCDECL_RPL (fwrite, size_t,
 550                   (const void *ptr, size_t s, size_t n, FILE *stream)
 551                   _GL_ARG_NONNULL ((1, 4)));
 552 _GL_CXXALIAS_RPL (fwrite, size_t,
 553                   (const void *ptr, size_t s, size_t n, FILE *stream));
 554 # else
 555 _GL_CXXALIAS_SYS (fwrite, size_t,
 556                   (const void *ptr, size_t s, size_t n, FILE *stream));
 557
 558 /* Work around glibc bug 11959
 559    <http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
 560    which sometimes causes an unwanted diagnostic for fwrite calls.
 561    This affects only function declaration attributes, so it's not
 562    needed for C++.  */
 563 #  if !defined __cplusplus && 0 < __USE_FORTIFY_LEVEL
 564 static inline size_t _GL_ARG_NONNULL ((1, 4))
 565 rpl_fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
 566 {
 567   size_t r = fwrite (ptr, s, n, stream);
 568   (void) r;
 569   return r;
 570 }
 571 #   undef fwrite
 572 #   define fwrite rpl_fwrite
 573 #  endif
 574 # endif
 575 _GL_CXXALIASWARN (fwrite);
 576 #endif
 577
 578 #if @GNULIB_GETC@
 579 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 580 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 581 #   undef getc
 582 #   define getc rpl_fgetc
 583 #  endif
 584 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
 585 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
 586 # else
 587 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
 588 # endif
 589 _GL_CXXALIASWARN (getc);
 590 #endif
 591
 592 #if @GNULIB_GETCHAR@
 593 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 594 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 595 #   undef getchar
 596 #   define getchar rpl_getchar
 597 #  endif
 598 _GL_FUNCDECL_RPL (getchar, int, (void));
 599 _GL_CXXALIAS_RPL (getchar, int, (void));
 600 # else
 601 _GL_CXXALIAS_SYS (getchar, int, (void));
 602 # endif
 603 _GL_CXXALIASWARN (getchar);
 604 #endif
 605
 606 #if @GNULIB_GETDELIM@
 607 /* Read input, up to (and including) the next occurrence of DELIMITER, from
 608    STREAM, store it in *LINEPTR (and NUL-terminate it).
 609    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 610    bytes of space.  It is realloc'd as necessary.
 611    Return the number of bytes read and stored at *LINEPTR (not including the
 612    NUL terminator), or -1 on error or EOF.  */
 613 # if @REPLACE_GETDELIM@
 614 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 615 #   undef getdelim
 616 #   define getdelim rpl_getdelim
 617 #  endif
 618 _GL_FUNCDECL_RPL (getdelim, ssize_t,
 619                   (char **lineptr, size_t *linesize, int delimiter,
 620                    FILE *stream)
 621                   _GL_ARG_NONNULL ((1, 2, 4)));
 622 _GL_CXXALIAS_RPL (getdelim, ssize_t,
 623                   (char **lineptr, size_t *linesize, int delimiter,
 624                    FILE *stream));
 625 # else
 626 #  if !@HAVE_DECL_GETDELIM@
 627 _GL_FUNCDECL_SYS (getdelim, ssize_t,
 628                   (char **lineptr, size_t *linesize, int delimiter,
 629                    FILE *stream)
 630                   _GL_ARG_NONNULL ((1, 2, 4)));
 631 #  endif
 632 _GL_CXXALIAS_SYS (getdelim, ssize_t,
 633                   (char **lineptr, size_t *linesize, int delimiter,
 634                    FILE *stream));
 635 # endif
 636 _GL_CXXALIASWARN (getdelim);
 637 #elif defined GNULIB_POSIXCHECK
 638 # undef getdelim
 639 # if HAVE_RAW_DECL_GETDELIM
 640 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
 641                  "use gnulib module getdelim for portability");
 642 # endif
 643 #endif
 644
 645 #if @GNULIB_GETLINE@
 646 /* Read a line, up to (and including) the next newline, from STREAM, store it
 647    in *LINEPTR (and NUL-terminate it).
 648    *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
 649    bytes of space.  It is realloc'd as necessary.
 650    Return the number of bytes read and stored at *LINEPTR (not including the
 651    NUL terminator), or -1 on error or EOF.  */
 652 # if @REPLACE_GETLINE@
 653 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 654 #   undef getline
 655 #   define getline rpl_getline
 656 #  endif
 657 _GL_FUNCDECL_RPL (getline, ssize_t,
 658                   (char **lineptr, size_t *linesize, FILE *stream)
 659                   _GL_ARG_NONNULL ((1, 2, 3)));
 660 _GL_CXXALIAS_RPL (getline, ssize_t,
 661                   (char **lineptr, size_t *linesize, FILE *stream));
 662 # else
 663 #  if !@HAVE_DECL_GETLINE@
 664 _GL_FUNCDECL_SYS (getline, ssize_t,
 665                   (char **lineptr, size_t *linesize, FILE *stream)
 666                   _GL_ARG_NONNULL ((1, 2, 3)));
 667 #  endif
 668 _GL_CXXALIAS_SYS (getline, ssize_t,
 669                   (char **lineptr, size_t *linesize, FILE *stream));
 670 # endif
 671 # if @HAVE_DECL_GETLINE@
 672 _GL_CXXALIASWARN (getline);
 673 # endif
 674 #elif defined GNULIB_POSIXCHECK
 675 # undef getline
 676 # if HAVE_RAW_DECL_GETLINE
 677 _GL_WARN_ON_USE (getline, "getline is unportable - "
 678                  "use gnulib module getline for portability");
 679 # endif
 680 #endif
 681
 682 #if @GNULIB_GETS@
 683 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 684 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 685 #   undef gets
 686 #   define gets rpl_gets
 687 #  endif
 688 _GL_FUNCDECL_RPL (gets, char *, (char *s) _GL_ARG_NONNULL ((1)));
 689 _GL_CXXALIAS_RPL (gets, char *, (char *s));
 690 # else
 691 _GL_CXXALIAS_SYS (gets, char *, (char *s));
 692 #  undef gets
 693 # endif
 694 _GL_CXXALIASWARN (gets);
 695 /* It is very rare that the developer ever has full control of stdin,
 696    so any use of gets warrants an unconditional warning.  Assume it is
 697    always declared, since it is required by C89.  */
 698 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 699 #endif
 700
 701
 702 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
 703 struct obstack;
 704 /* Grow an obstack with formatted output.  Return the number of
 705    bytes added to OBS.  No trailing nul byte is added, and the
 706    object should be closed with obstack_finish before use.  Upon
 707    memory allocation error, call obstack_alloc_failed_handler.  Upon
 708    other error, return -1.  */
 709 # if @REPLACE_OBSTACK_PRINTF@
 710 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 711 #   define obstack_printf rpl_obstack_printf
 712 #  endif
 713 _GL_FUNCDECL_RPL (obstack_printf, int,
 714                   (struct obstack *obs, const char *format, ...)
 715                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 716                   _GL_ARG_NONNULL ((1, 2)));
 717 _GL_CXXALIAS_RPL (obstack_printf, int,
 718                   (struct obstack *obs, const char *format, ...));
 719 # else
 720 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 721 _GL_FUNCDECL_SYS (obstack_printf, int,
 722                   (struct obstack *obs, const char *format, ...)
 723                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
 724                   _GL_ARG_NONNULL ((1, 2)));
 725 #  endif
 726 _GL_CXXALIAS_SYS (obstack_printf, int,
 727                   (struct obstack *obs, const char *format, ...));
 728 # endif
 729 _GL_CXXALIASWARN (obstack_printf);
 730 # if @REPLACE_OBSTACK_PRINTF@
 731 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 732 #   define obstack_vprintf rpl_obstack_vprintf
 733 #  endif
 734 _GL_FUNCDECL_RPL (obstack_vprintf, int,
 735                   (struct obstack *obs, const char *format, va_list args)
 736                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 737                   _GL_ARG_NONNULL ((1, 2)));
 738 _GL_CXXALIAS_RPL (obstack_vprintf, int,
 739                   (struct obstack *obs, const char *format, va_list args));
 740 # else
 741 #  if !@HAVE_DECL_OBSTACK_PRINTF@
 742 _GL_FUNCDECL_SYS (obstack_vprintf, int,
 743                   (struct obstack *obs, const char *format, va_list args)
 744                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
 745                   _GL_ARG_NONNULL ((1, 2)));
 746 #  endif
 747 _GL_CXXALIAS_SYS (obstack_vprintf, int,
 748                   (struct obstack *obs, const char *format, va_list args));
 749 # endif
 750 _GL_CXXALIASWARN (obstack_vprintf);
 751 #endif
 752
 753 #if @GNULIB_PERROR@
 754 /* Print a message to standard error, describing the value of ERRNO,
 755    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
 756    and terminated with a newline.  */
 757 # if @REPLACE_PERROR@
 758 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 759 #   define perror rpl_perror
 760 #  endif
 761 _GL_FUNCDECL_RPL (perror, void, (const char *string));
 762 _GL_CXXALIAS_RPL (perror, void, (const char *string));
 763 # else
 764 _GL_CXXALIAS_SYS (perror, void, (const char *string));
 765 # endif
 766 _GL_CXXALIASWARN (perror);
 767 #elif defined GNULIB_POSIXCHECK
 768 # undef perror
 769 /* Assume perror is always declared.  */
 770 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
 771                  "use gnulib module perror for portability");
 772 #endif
 773
 774 #if @GNULIB_POPEN@
 775 # if @REPLACE_POPEN@
 776 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 777 #   undef popen
 778 #   define popen rpl_popen
 779 #  endif
 780 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
 781                                  _GL_ARG_NONNULL ((1, 2)));
 782 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 783 # else
 784 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 785 # endif
 786 _GL_CXXALIASWARN (popen);
 787 #elif defined GNULIB_POSIXCHECK
 788 # undef popen
 789 # if HAVE_RAW_DECL_POPEN
 790 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
 791                  "use gnulib module popen or pipe for more portability");
 792 # endif
 793 #endif
 794
 795 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
 796 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
 797      || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
 798 #  if defined __GNUC__
 799 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 800 /* Don't break __attribute__((format(printf,M,N))).  */
 801 #    define printf __printf__
 802 #   endif
 803 #   if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
 804 _GL_FUNCDECL_RPL_1 (__printf__, int,
 805                     (const char *format, ...)
 806                     __asm__ (@ASM_SYMBOL_PREFIX@
 807                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 808                     _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 809                     _GL_ARG_NONNULL ((1)));
 810 #   else
 811 _GL_FUNCDECL_RPL_1 (__printf__, int,
 812                     (const char *format, ...)
 813                     __asm__ (@ASM_SYMBOL_PREFIX@
 814                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
 815                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
 816                     _GL_ARG_NONNULL ((1)));
 817 #   endif
 818 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
 819 #  else
 820 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 821 #    define printf rpl_printf
 822 #   endif
 823 _GL_FUNCDECL_RPL (printf, int,
 824                   (const char *format, ...)
 825                   _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
 826                   _GL_ARG_NONNULL ((1)));
 827 _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
 828 #  endif
 829 #  define GNULIB_overrides_printf 1
 830 # else
 831 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
 832 # endif
 833 _GL_CXXALIASWARN (printf);
 834 #endif
 835 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
 836 # if !GNULIB_overrides_printf
 837 #  undef printf
 838 # endif
 839 /* Assume printf is always declared.  */
 840 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
 841                  "use gnulib module printf-posix for portable "
 842                  "POSIX compliance");
 843 #endif
 844
 845 #if @GNULIB_PUTC@
 846 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 847 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 848 #   undef putc
 849 #   define putc rpl_fputc
 850 #  endif
 851 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
 852 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
 853 # else
 854 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
 855 # endif
 856 _GL_CXXALIASWARN (putc);
 857 #endif
 858
 859 #if @GNULIB_PUTCHAR@
 860 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 861 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 862 #   undef putchar
 863 #   define putchar rpl_putchar
 864 #  endif
 865 _GL_FUNCDECL_RPL (putchar, int, (int c));
 866 _GL_CXXALIAS_RPL (putchar, int, (int c));
 867 # else
 868 _GL_CXXALIAS_SYS (putchar, int, (int c));
 869 # endif
 870 _GL_CXXALIASWARN (putchar);
 871 #endif
 872
 873 #if @GNULIB_PUTS@
 874 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
 875 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 876 #   undef puts
 877 #   define puts rpl_puts
 878 #  endif
 879 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
 880 _GL_CXXALIAS_RPL (puts, int, (const char *string));
 881 # else
 882 _GL_CXXALIAS_SYS (puts, int, (const char *string));
 883 # endif
 884 _GL_CXXALIASWARN (puts);
 885 #endif
 886
 887 #if @GNULIB_REMOVE@
 888 # if @REPLACE_REMOVE@
 889 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 890 #   undef remove
 891 #   define remove rpl_remove
 892 #  endif
 893 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
 894 _GL_CXXALIAS_RPL (remove, int, (const char *name));
 895 # else
 896 _GL_CXXALIAS_SYS (remove, int, (const char *name));
 897 # endif
 898 _GL_CXXALIASWARN (remove);
 899 #elif defined GNULIB_POSIXCHECK
 900 # undef remove
 901 /* Assume remove is always declared.  */
 902 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
 903                  "use gnulib module remove for more portability");
 904 #endif
 905
 906 #if @GNULIB_RENAME@
 907 # if @REPLACE_RENAME@
 908 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 909 #   undef rename
 910 #   define rename rpl_rename
 911 #  endif
 912 _GL_FUNCDECL_RPL (rename, int,
 913                   (const char *old_filename, const char *new_filename)
 914                   _GL_ARG_NONNULL ((1, 2)));
 915 _GL_CXXALIAS_RPL (rename, int,
 916                   (const char *old_filename, const char *new_filename));
 917 # else
 918 _GL_CXXALIAS_SYS (rename, int,
 919                   (const char *old_filename, const char *new_filename));
 920 # endif
 921 _GL_CXXALIASWARN (rename);
 922 #elif defined GNULIB_POSIXCHECK
 923 # undef rename
 924 /* Assume rename is always declared.  */
 925 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
 926                  "use gnulib module rename for more portability");
 927 #endif
 928
 929 #if @GNULIB_RENAMEAT@
 930 # if @REPLACE_RENAMEAT@
 931 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 932 #   undef renameat
 933 #   define renameat rpl_renameat
 934 #  endif
 935 _GL_FUNCDECL_RPL (renameat, int,
 936                   (int fd1, char const *file1, int fd2, char const *file2)
 937                   _GL_ARG_NONNULL ((2, 4)));
 938 _GL_CXXALIAS_RPL (renameat, int,
 939                   (int fd1, char const *file1, int fd2, char const *file2));
 940 # else
 941 #  if !@HAVE_RENAMEAT@
 942 _GL_FUNCDECL_SYS (renameat, int,
 943                   (int fd1, char const *file1, int fd2, char const *file2)
 944                   _GL_ARG_NONNULL ((2, 4)));
 945 #  endif
 946 _GL_CXXALIAS_SYS (renameat, int,
 947                   (int fd1, char const *file1, int fd2, char const *file2));
 948 # endif
 949 _GL_CXXALIASWARN (renameat);
 950 #elif defined GNULIB_POSIXCHECK
 951 # undef renameat
 952 # if HAVE_RAW_DECL_RENAMEAT
 953 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
 954                  "use gnulib module renameat for portability");
 955 # endif
 956 #endif
 957
 958 #if @GNULIB_SCANF@
 959 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
 960 #  if defined __GNUC__
 961 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 962 #    undef scanf
 963 /* Don't break __attribute__((format(scanf,M,N))).  */
 964 #    define scanf __scanf__
 965 #   endif
 966 _GL_FUNCDECL_RPL_1 (__scanf__, int,
 967                     (const char *format, ...)
 968                     __asm__ (@ASM_SYMBOL_PREFIX@
 969                              _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
 970                     _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
 971                     _GL_ARG_NONNULL ((1)));
 972 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
 973 #  else
 974 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 975 #    undef scanf
 976 #    define scanf rpl_scanf
 977 #   endif
 978 _GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
 979                               _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
 980                               _GL_ARG_NONNULL ((1)));
 981 _GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
 982 #  endif
 983 # else
 984 _GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
 985 # endif
 986 _GL_CXXALIASWARN (scanf);
 987 #endif
 988
 989 #if @GNULIB_SNPRINTF@
 990 # if @REPLACE_SNPRINTF@
 991 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 992 #   define snprintf rpl_snprintf
 993 #  endif
 994 _GL_FUNCDECL_RPL (snprintf, int,
 995                   (char *str, size_t size, const char *format, ...)
 996                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
 997                   _GL_ARG_NONNULL ((3)));
 998 _GL_CXXALIAS_RPL (snprintf, int,
 999                   (char *str, size_t size, const char *format, ...));
1000 # else
1001 #  if !@HAVE_DECL_SNPRINTF@
1002 _GL_FUNCDECL_SYS (snprintf, int,
1003                   (char *str, size_t size, const char *format, ...)
1004                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1005                   _GL_ARG_NONNULL ((3)));
1006 #  endif
1007 _GL_CXXALIAS_SYS (snprintf, int,
1008                   (char *str, size_t size, const char *format, ...));
1009 # endif
1010 _GL_CXXALIASWARN (snprintf);
1011 #elif defined GNULIB_POSIXCHECK
1012 # undef snprintf
1013 # if HAVE_RAW_DECL_SNPRINTF
1014 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1015                  "use gnulib module snprintf for portability");
1016 # endif
1017 #endif
1018
1019 /* Some people would argue that sprintf should be handled like gets
1020    (for example, OpenBSD issues a link warning for both functions),
1021    since both can cause security holes due to buffer overruns.
1022    However, we believe that sprintf can be used safely, and is more
1023    efficient than snprintf in those safe cases; and as proof of our
1024    belief, we use sprintf in several gnulib modules.  So this header
1025    intentionally avoids adding a warning to sprintf except when
1026    GNULIB_POSIXCHECK is defined.  */
1027
1028 #if @GNULIB_SPRINTF_POSIX@
1029 # if @REPLACE_SPRINTF@
1030 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1031 #   define sprintf rpl_sprintf
1032 #  endif
1033 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1034                                 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1035                                 _GL_ARG_NONNULL ((1, 2)));
1036 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1037 # else
1038 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1039 # endif
1040 _GL_CXXALIASWARN (sprintf);
1041 #elif defined GNULIB_POSIXCHECK
1042 # undef sprintf
1043 /* Assume sprintf is always declared.  */
1044 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1045                  "use gnulib module sprintf-posix for portable "
1046                  "POSIX compliance");
1047 #endif
1048
1049 #if @GNULIB_TMPFILE@
1050 # if @REPLACE_TMPFILE@
1051 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1052 #   define tmpfile rpl_tmpfile
1053 #  endif
1054 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1055 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1056 # else
1057 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1058 # endif
1059 _GL_CXXALIASWARN (tmpfile);
1060 #elif defined GNULIB_POSIXCHECK
1061 # undef tmpfile
1062 # if HAVE_RAW_DECL_TMPFILE
1063 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1064                  "use gnulib module tmpfile for portability");
1065 # endif
1066 #endif
1067
1068 #if @GNULIB_VASPRINTF@
1069 /* Write formatted output to a string dynamically allocated with malloc().
1070    If the memory allocation succeeds, store the address of the string in
1071    *RESULT and return the number of resulting bytes, excluding the trailing
1072    NUL.  Upon memory allocation error, or some other error, return -1.  */
1073 # if @REPLACE_VASPRINTF@
1074 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1075 #   define asprintf rpl_asprintf
1076 #  endif
1077 _GL_FUNCDECL_RPL (asprintf, int,
1078                   (char **result, const char *format, ...)
1079                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1080                   _GL_ARG_NONNULL ((1, 2)));
1081 _GL_CXXALIAS_RPL (asprintf, int,
1082                   (char **result, const char *format, ...));
1083 # else
1084 #  if !@HAVE_VASPRINTF@
1085 _GL_FUNCDECL_SYS (asprintf, int,
1086                   (char **result, const char *format, ...)
1087                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1088                   _GL_ARG_NONNULL ((1, 2)));
1089 #  endif
1090 _GL_CXXALIAS_SYS (asprintf, int,
1091                   (char **result, const char *format, ...));
1092 # endif
1093 _GL_CXXALIASWARN (asprintf);
1094 # if @REPLACE_VASPRINTF@
1095 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1096 #   define vasprintf rpl_vasprintf
1097 #  endif
1098 _GL_FUNCDECL_RPL (vasprintf, int,
1099                   (char **result, const char *format, va_list args)
1100                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1101                   _GL_ARG_NONNULL ((1, 2)));
1102 _GL_CXXALIAS_RPL (vasprintf, int,
1103                   (char **result, const char *format, va_list args));
1104 # else
1105 #  if !@HAVE_VASPRINTF@
1106 _GL_FUNCDECL_SYS (vasprintf, int,
1107                   (char **result, const char *format, va_list args)
1108                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1109                   _GL_ARG_NONNULL ((1, 2)));
1110 #  endif
1111 _GL_CXXALIAS_SYS (vasprintf, int,
1112                   (char **result, const char *format, va_list args));
1113 # endif
1114 _GL_CXXALIASWARN (vasprintf);
1115 #endif
1116
1117 #if @GNULIB_VDPRINTF@
1118 # if @REPLACE_VDPRINTF@
1119 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1120 #   define vdprintf rpl_vdprintf
1121 #  endif
1122 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1123                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1124                                  _GL_ARG_NONNULL ((2)));
1125 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1126 # else
1127 #  if !@HAVE_VDPRINTF@
1128 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1129                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1130                                  _GL_ARG_NONNULL ((2)));
1131 #  endif
1132 /* Need to cast, because on Solaris, the third parameter will likely be
1133                                                     __va_list args.  */
1134 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
1135                        (int fd, const char *format, va_list args));
1136 # endif
1137 _GL_CXXALIASWARN (vdprintf);
1138 #elif defined GNULIB_POSIXCHECK
1139 # undef vdprintf
1140 # if HAVE_RAW_DECL_VDPRINTF
1141 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1142                  "use gnulib module vdprintf for portability");
1143 # endif
1144 #endif
1145
1146 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1147 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1148      || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1149 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1150 #   define vfprintf rpl_vfprintf
1151 #  endif
1152 #  define GNULIB_overrides_vfprintf 1
1153 #  if @GNULIB_VFPRINTF_POSIX@
1154 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1155                                  _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1156                                  _GL_ARG_NONNULL ((1, 2)));
1157 #  else
1158 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1159                                  _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1160                                  _GL_ARG_NONNULL ((1, 2)));
1161 #  endif
1162 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1163 # else
1164 /* Need to cast, because on Solaris, the third parameter is
1165                                                       __va_list args
1166    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1167 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1168                        (FILE *fp, const char *format, va_list args));
1169 # endif
1170 _GL_CXXALIASWARN (vfprintf);
1171 #endif
1172 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1173 # if !GNULIB_overrides_vfprintf
1174 #  undef vfprintf
1175 # endif
1176 /* Assume vfprintf is always declared.  */
1177 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1178                  "use gnulib module vfprintf-posix for portable "
1179                       "POSIX compliance");
1180 #endif
1181
1182 #if @GNULIB_VFSCANF@
1183 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1184 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1185 #   undef vfscanf
1186 #   define vfscanf rpl_vfscanf
1187 #  endif
1188 _GL_FUNCDECL_RPL (vfscanf, int,
1189                   (FILE *stream, const char *format, va_list args)
1190                   _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1191                   _GL_ARG_NONNULL ((1, 2)));
1192 _GL_CXXALIAS_RPL (vfscanf, int,
1193                   (FILE *stream, const char *format, va_list args));
1194 # else
1195 _GL_CXXALIAS_SYS (vfscanf, int,
1196                   (FILE *stream, const char *format, va_list args));
1197 # endif
1198 _GL_CXXALIASWARN (vfscanf);
1199 #endif
1200
1201 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1202 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1203      || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1204 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1205 #   define vprintf rpl_vprintf
1206 #  endif
1207 #  define GNULIB_overrides_vprintf 1
1208 #  if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1209 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1210                                 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1211                                 _GL_ARG_NONNULL ((1)));
1212 #  else
1213 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1214                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1215                                 _GL_ARG_NONNULL ((1)));
1216 #  endif
1217 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1218 # else
1219 /* Need to cast, because on Solaris, the second parameter is
1220                                                           __va_list args
1221    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1222 _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1223 # endif
1224 _GL_CXXALIASWARN (vprintf);
1225 #endif
1226 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1227 # if !GNULIB_overrides_vprintf
1228 #  undef vprintf
1229 # endif
1230 /* Assume vprintf is always declared.  */
1231 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1232                  "use gnulib module vprintf-posix for portable "
1233                  "POSIX compliance");
1234 #endif
1235
1236 #if @GNULIB_VSCANF@
1237 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1238 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1239 #   undef vscanf
1240 #   define vscanf rpl_vscanf
1241 #  endif
1242 _GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1243                                _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1244                                _GL_ARG_NONNULL ((1)));
1245 _GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1246 # else
1247 _GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1248 # endif
1249 _GL_CXXALIASWARN (vscanf);
1250 #endif
1251
1252 #if @GNULIB_VSNPRINTF@
1253 # if @REPLACE_VSNPRINTF@
1254 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1255 #   define vsnprintf rpl_vsnprintf
1256 #  endif
1257 _GL_FUNCDECL_RPL (vsnprintf, int,
1258                   (char *str, size_t size, const char *format, va_list args)
1259                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1260                   _GL_ARG_NONNULL ((3)));
1261 _GL_CXXALIAS_RPL (vsnprintf, int,
1262                   (char *str, size_t size, const char *format, va_list args));
1263 # else
1264 #  if !@HAVE_DECL_VSNPRINTF@
1265 _GL_FUNCDECL_SYS (vsnprintf, int,
1266                   (char *str, size_t size, const char *format, va_list args)
1267                   _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1268                   _GL_ARG_NONNULL ((3)));
1269 #  endif
1270 _GL_CXXALIAS_SYS (vsnprintf, int,
1271                   (char *str, size_t size, const char *format, va_list args));
1272 # endif
1273 _GL_CXXALIASWARN (vsnprintf);
1274 #elif defined GNULIB_POSIXCHECK
1275 # undef vsnprintf
1276 # if HAVE_RAW_DECL_VSNPRINTF
1277 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1278                  "use gnulib module vsnprintf for portability");
1279 # endif
1280 #endif
1281
1282 #if @GNULIB_VSPRINTF_POSIX@
1283 # if @REPLACE_VSPRINTF@
1284 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1285 #   define vsprintf rpl_vsprintf
1286 #  endif
1287 _GL_FUNCDECL_RPL (vsprintf, int,
1288                   (char *str, const char *format, va_list args)
1289                   _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1290                   _GL_ARG_NONNULL ((1, 2)));
1291 _GL_CXXALIAS_RPL (vsprintf, int,
1292                   (char *str, const char *format, va_list args));
1293 # else
1294 /* Need to cast, because on Solaris, the third parameter is
1295                                                        __va_list args
1296    and GCC's fixincludes did not change this to __gnuc_va_list.  */
1297 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1298                        (char *str, const char *format, va_list args));
1299 # endif
1300 _GL_CXXALIASWARN (vsprintf);
1301 #elif defined GNULIB_POSIXCHECK
1302 # undef vsprintf
1303 /* Assume vsprintf is always declared.  */
1304 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1305                  "use gnulib module vsprintf-posix for portable "
1306                       "POSIX compliance");
1307 #endif
1308
1309
1310 #endif /* _@GUARD_PREFIX@_STDIO_H */
1311 #endif /* _@GUARD_PREFIX@_STDIO_H */
1312 #endif