lib/stdlib.in.h

   1 /* A GNU-like <stdlib.h>.
   2
   3    Copyright (C) 1995, 2001-2004, 2006-2011 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 General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) 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_malloc_and_calloc
  24 /* Special invocation convention inside glibc header files.  */
  25
  26 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  27
  28 #else
  29 /* Normal invocation convention.  */
  30
  31 #ifndef _@GUARD_PREFIX@_STDLIB_H
  32
  33 /* The include_next requires a split double-inclusion guard.  */
  34 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  35
  36 #ifndef _@GUARD_PREFIX@_STDLIB_H
  37 #define _@GUARD_PREFIX@_STDLIB_H
  38
  39 /* NetBSD 5.0 mis-defines NULL.  */
  40 #include <stddef.h>
  41
  42 /* MirBSD 10 defines WEXITSTATUS in <sys/wait.h>, not in <stdlib.h>.  */
  43 #if @GNULIB_SYSTEM_POSIX@ && !defined WEXITSTATUS
  44 # include <sys/wait.h>
  45 #endif
  46
  47 /* Solaris declares getloadavg() in <sys/loadavg.h>.  */
  48 #if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
  49 # include <sys/loadavg.h>
  50 #endif
  51
  52 #if @GNULIB_RANDOM_R@
  53
  54 /* OSF/1 5.1 declares 'struct random_data' in <random.h>, which is included
  55    from <stdlib.h> if _REENTRANT is defined.  Include it whenever we need
  56    'struct random_data'.  */
  57 # if @HAVE_RANDOM_H@
  58 #  include <random.h>
  59 # endif
  60
  61 # if !@HAVE_STRUCT_RANDOM_DATA@ || !@HAVE_RANDOM_R@
  62 #  include <stdint.h>
  63 # endif
  64
  65 # if !@HAVE_STRUCT_RANDOM_DATA@
  66 /* Define 'struct random_data'.
  67    But allow multiple gnulib generated <stdlib.h> replacements to coexist.  */
  68 #  if !GNULIB_defined_struct_random_data
  69 struct random_data
  70 {
  71   int32_t *fptr;                /* Front pointer.  */
  72   int32_t *rptr;                /* Rear pointer.  */
  73   int32_t *state;               /* Array of state values.  */
  74   int rand_type;                /* Type of random number generator.  */
  75   int rand_deg;                 /* Degree of random number generator.  */
  76   int rand_sep;                 /* Distance between front and rear.  */
  77   int32_t *end_ptr;             /* Pointer behind state table.  */
  78 };
  79 #   define GNULIB_defined_struct_random_data 1
  80 #  endif
  81 # endif
  82 #endif
  83
  84 #if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
  85 /* On MacOS X 10.3, only <unistd.h> declares mkstemp.  */
  86 /* On MacOS X 10.5, only <unistd.h> declares mkstemps.  */
  87 /* On Cygwin 1.7.1, only <unistd.h> declares getsubopt.  */
  88 /* But avoid namespace pollution on glibc systems and native Windows.  */
  89 # include <unistd.h>
  90 #endif
  91
  92 /* The definition of _Noreturn is copied here.  */
  93
  94 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  95
  96 /* The definition of _GL_ARG_NONNULL is copied here.  */
  97
  98 /* The definition of _GL_WARN_ON_USE is copied here.  */
  99
 100
 101 /* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
 102 #ifndef EXIT_SUCCESS
 103 # define EXIT_SUCCESS 0
 104 #endif
 105 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
 106    with proper operation of xargs.  */
 107 #ifndef EXIT_FAILURE
 108 # define EXIT_FAILURE 1
 109 #elif EXIT_FAILURE != 1
 110 # undef EXIT_FAILURE
 111 # define EXIT_FAILURE 1
 112 #endif
 113
 114
 115 #if @GNULIB__EXIT@
 116 /* Terminate the current process with the given return code, without running
 117    the 'atexit' handlers.  */
 118 # if !@HAVE__EXIT@
 119 _GL_FUNCDECL_SYS (_Exit, _Noreturn void, (int status));
 120 # endif
 121 _GL_CXXALIAS_SYS (_Exit, void, (int status));
 122 _GL_CXXALIASWARN (_Exit);
 123 #elif defined GNULIB_POSIXCHECK
 124 # undef _Exit
 125 # if HAVE_RAW_DECL__EXIT
 126 _GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
 127                  "use gnulib module _Exit for portability");
 128 # endif
 129 #endif
 130
 131
 132 #if @GNULIB_ATOLL@
 133 /* Parse a signed decimal integer.
 134    Returns the value of the integer.  Errors are not detected.  */
 135 # if !@HAVE_ATOLL@
 136 _GL_FUNCDECL_SYS (atoll, long long, (const char *string) _GL_ARG_NONNULL ((1)));
 137 # endif
 138 _GL_CXXALIAS_SYS (atoll, long long, (const char *string));
 139 _GL_CXXALIASWARN (atoll);
 140 #elif defined GNULIB_POSIXCHECK
 141 # undef atoll
 142 # if HAVE_RAW_DECL_ATOLL
 143 _GL_WARN_ON_USE (atoll, "atoll is unportable - "
 144                  "use gnulib module atoll for portability");
 145 # endif
 146 #endif
 147
 148 #if @GNULIB_CALLOC_POSIX@
 149 # if @REPLACE_CALLOC@
 150 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 151 #   undef calloc
 152 #   define calloc rpl_calloc
 153 #  endif
 154 _GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
 155 _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
 156 # else
 157 _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
 158 # endif
 159 _GL_CXXALIASWARN (calloc);
 160 #elif defined GNULIB_POSIXCHECK
 161 # undef calloc
 162 /* Assume calloc is always declared.  */
 163 _GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
 164                  "use gnulib module calloc-posix for portability");
 165 #endif
 166
 167 #if @GNULIB_CANONICALIZE_FILE_NAME@
 168 # if @REPLACE_CANONICALIZE_FILE_NAME@
 169 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 170 #   define canonicalize_file_name rpl_canonicalize_file_name
 171 #  endif
 172 _GL_FUNCDECL_RPL (canonicalize_file_name, char *, (const char *name)
 173                                                   _GL_ARG_NONNULL ((1)));
 174 _GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name));
 175 # else
 176 #  if !@HAVE_CANONICALIZE_FILE_NAME@
 177 _GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name)
 178                                                   _GL_ARG_NONNULL ((1)));
 179 #  endif
 180 _GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name));
 181 # endif
 182 _GL_CXXALIASWARN (canonicalize_file_name);
 183 #elif defined GNULIB_POSIXCHECK
 184 # undef canonicalize_file_name
 185 # if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
 186 _GL_WARN_ON_USE (canonicalize_file_name,
 187                  "canonicalize_file_name is unportable - "
 188                  "use gnulib module canonicalize-lgpl for portability");
 189 # endif
 190 #endif
 191
 192 #if @GNULIB_GETLOADAVG@
 193 /* Store max(NELEM,3) load average numbers in LOADAVG[].
 194    The three numbers are the load average of the last 1 minute, the last 5
 195    minutes, and the last 15 minutes, respectively.
 196    LOADAVG is an array of NELEM numbers.  */
 197 # if !@HAVE_DECL_GETLOADAVG@
 198 _GL_FUNCDECL_SYS (getloadavg, int, (double loadavg[], int nelem)
 199                                    _GL_ARG_NONNULL ((1)));
 200 # endif
 201 _GL_CXXALIAS_SYS (getloadavg, int, (double loadavg[], int nelem));
 202 _GL_CXXALIASWARN (getloadavg);
 203 #elif defined GNULIB_POSIXCHECK
 204 # undef getloadavg
 205 # if HAVE_RAW_DECL_GETLOADAVG
 206 _GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
 207                  "use gnulib module getloadavg for portability");
 208 # endif
 209 #endif
 210
 211 #if @GNULIB_GETSUBOPT@
 212 /* Assuming *OPTIONP is a comma separated list of elements of the form
 213    "token" or "token=value", getsubopt parses the first of these elements.
 214    If the first element refers to a "token" that is member of the given
 215    NULL-terminated array of tokens:
 216      - It replaces the comma with a NUL byte, updates *OPTIONP to point past
 217        the first option and the comma, sets *VALUEP to the value of the
 218        element (or NULL if it doesn't contain an "=" sign),
 219      - It returns the index of the "token" in the given array of tokens.
 220    Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
 221    For more details see the POSIX:2001 specification.
 222    http://www.opengroup.org/susv3xsh/getsubopt.html */
 223 # if !@HAVE_GETSUBOPT@
 224 _GL_FUNCDECL_SYS (getsubopt, int,
 225                   (char **optionp, char *const *tokens, char **valuep)
 226                   _GL_ARG_NONNULL ((1, 2, 3)));
 227 # endif
 228 _GL_CXXALIAS_SYS (getsubopt, int,
 229                   (char **optionp, char *const *tokens, char **valuep));
 230 _GL_CXXALIASWARN (getsubopt);
 231 #elif defined GNULIB_POSIXCHECK
 232 # undef getsubopt
 233 # if HAVE_RAW_DECL_GETSUBOPT
 234 _GL_WARN_ON_USE (getsubopt, "getsubopt is unportable - "
 235                  "use gnulib module getsubopt for portability");
 236 # endif
 237 #endif
 238
 239 #if @GNULIB_GRANTPT@
 240 /* Change the ownership and access permission of the slave side of the
 241    pseudo-terminal whose master side is specified by FD.  */
 242 # if !@HAVE_GRANTPT@
 243 _GL_FUNCDECL_SYS (grantpt, int, (int fd));
 244 # endif
 245 _GL_CXXALIAS_SYS (grantpt, int, (int fd));
 246 _GL_CXXALIASWARN (grantpt);
 247 #elif defined GNULIB_POSIXCHECK
 248 # undef grantpt
 249 # if HAVE_RAW_DECL_GRANTPT
 250 _GL_WARN_ON_USE (ptsname, "grantpt is not portable - "
 251                  "use gnulib module grantpt for portability");
 252 # endif
 253 #endif
 254
 255 /* If _GL_USE_STDLIB_ALLOC is nonzero, the including module does not
 256    rely on GNU or POSIX semantics for malloc and realloc (for example,
 257    by never specifying a zero size), so it does not need malloc or
 258    realloc to be redefined.  */
 259 #if @GNULIB_MALLOC_POSIX@
 260 # if @REPLACE_MALLOC@
 261 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
 262         || _GL_USE_STDLIB_ALLOC)
 263 #   undef malloc
 264 #   define malloc rpl_malloc
 265 #  endif
 266 _GL_FUNCDECL_RPL (malloc, void *, (size_t size));
 267 _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
 268 # else
 269 _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
 270 # endif
 271 _GL_CXXALIASWARN (malloc);
 272 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 273 # undef malloc
 274 /* Assume malloc is always declared.  */
 275 _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
 276                  "use gnulib module malloc-posix for portability");
 277 #endif
 278
 279 /* Convert a multibyte character to a wide character.  */
 280 #if @GNULIB_MBTOWC@
 281 # if @REPLACE_MBTOWC@
 282 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 283 #   undef mbtowc
 284 #   define mbtowc rpl_mbtowc
 285 #  endif
 286 _GL_FUNCDECL_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 287 _GL_CXXALIAS_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 288 # else
 289 _GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 290 # endif
 291 _GL_CXXALIASWARN (mbtowc);
 292 #endif
 293
 294 #if @GNULIB_MKDTEMP@
 295 /* Create a unique temporary directory from TEMPLATE.
 296    The last six characters of TEMPLATE must be "XXXXXX";
 297    they are replaced with a string that makes the directory name unique.
 298    Returns TEMPLATE, or a null pointer if it cannot get a unique name.
 299    The directory is created mode 700.  */
 300 # if !@HAVE_MKDTEMP@
 301 _GL_FUNCDECL_SYS (mkdtemp, char *, (char * /*template*/) _GL_ARG_NONNULL ((1)));
 302 # endif
 303 _GL_CXXALIAS_SYS (mkdtemp, char *, (char * /*template*/));
 304 _GL_CXXALIASWARN (mkdtemp);
 305 #elif defined GNULIB_POSIXCHECK
 306 # undef mkdtemp
 307 # if HAVE_RAW_DECL_MKDTEMP
 308 _GL_WARN_ON_USE (mkdtemp, "mkdtemp is unportable - "
 309                  "use gnulib module mkdtemp for portability");
 310 # endif
 311 #endif
 312
 313 #if @GNULIB_MKOSTEMP@
 314 /* Create a unique temporary file from TEMPLATE.
 315    The last six characters of TEMPLATE must be "XXXXXX";
 316    they are replaced with a string that makes the file name unique.
 317    The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
 318    and O_TEXT, O_BINARY (defined in "binary-io.h").
 319    The file is then created, with the specified flags, ensuring it didn't exist
 320    before.
 321    The file is created read-write (mask at least 0600 & ~umask), but it may be
 322    world-readable and world-writable (mask 0666 & ~umask), depending on the
 323    implementation.
 324    Returns the open file descriptor if successful, otherwise -1 and errno
 325    set.  */
 326 # if !@HAVE_MKOSTEMP@
 327 _GL_FUNCDECL_SYS (mkostemp, int, (char * /*template*/, int /*flags*/)
 328                                  _GL_ARG_NONNULL ((1)));
 329 # endif
 330 _GL_CXXALIAS_SYS (mkostemp, int, (char * /*template*/, int /*flags*/));
 331 _GL_CXXALIASWARN (mkostemp);
 332 #elif defined GNULIB_POSIXCHECK
 333 # undef mkostemp
 334 # if HAVE_RAW_DECL_MKOSTEMP
 335 _GL_WARN_ON_USE (mkostemp, "mkostemp is unportable - "
 336                  "use gnulib module mkostemp for portability");
 337 # endif
 338 #endif
 339
 340 #if @GNULIB_MKOSTEMPS@
 341 /* Create a unique temporary file from TEMPLATE.
 342    The last six characters of TEMPLATE before a suffix of length
 343    SUFFIXLEN must be "XXXXXX";
 344    they are replaced with a string that makes the file name unique.
 345    The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
 346    and O_TEXT, O_BINARY (defined in "binary-io.h").
 347    The file is then created, with the specified flags, ensuring it didn't exist
 348    before.
 349    The file is created read-write (mask at least 0600 & ~umask), but it may be
 350    world-readable and world-writable (mask 0666 & ~umask), depending on the
 351    implementation.
 352    Returns the open file descriptor if successful, otherwise -1 and errno
 353    set.  */
 354 # if !@HAVE_MKOSTEMPS@
 355 _GL_FUNCDECL_SYS (mkostemps, int,
 356                   (char * /*template*/, int /*suffixlen*/, int /*flags*/)
 357                   _GL_ARG_NONNULL ((1)));
 358 # endif
 359 _GL_CXXALIAS_SYS (mkostemps, int,
 360                   (char * /*template*/, int /*suffixlen*/, int /*flags*/));
 361 _GL_CXXALIASWARN (mkostemps);
 362 #elif defined GNULIB_POSIXCHECK
 363 # undef mkostemps
 364 # if HAVE_RAW_DECL_MKOSTEMPS
 365 _GL_WARN_ON_USE (mkostemps, "mkostemps is unportable - "
 366                  "use gnulib module mkostemps for portability");
 367 # endif
 368 #endif
 369
 370 #if @GNULIB_MKSTEMP@
 371 /* Create a unique temporary file from TEMPLATE.
 372    The last six characters of TEMPLATE must be "XXXXXX";
 373    they are replaced with a string that makes the file name unique.
 374    The file is then created, ensuring it didn't exist before.
 375    The file is created read-write (mask at least 0600 & ~umask), but it may be
 376    world-readable and world-writable (mask 0666 & ~umask), depending on the
 377    implementation.
 378    Returns the open file descriptor if successful, otherwise -1 and errno
 379    set.  */
 380 # if @REPLACE_MKSTEMP@
 381 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 382 #   define mkstemp rpl_mkstemp
 383 #  endif
 384 _GL_FUNCDECL_RPL (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
 385 _GL_CXXALIAS_RPL (mkstemp, int, (char * /*template*/));
 386 # else
 387 #  if ! @HAVE_MKSTEMP@
 388 _GL_FUNCDECL_SYS (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
 389 #  endif
 390 _GL_CXXALIAS_SYS (mkstemp, int, (char * /*template*/));
 391 # endif
 392 _GL_CXXALIASWARN (mkstemp);
 393 #elif defined GNULIB_POSIXCHECK
 394 # undef mkstemp
 395 # if HAVE_RAW_DECL_MKSTEMP
 396 _GL_WARN_ON_USE (mkstemp, "mkstemp is unportable - "
 397                  "use gnulib module mkstemp for portability");
 398 # endif
 399 #endif
 400
 401 #if @GNULIB_MKSTEMPS@
 402 /* Create a unique temporary file from TEMPLATE.
 403    The last six characters of TEMPLATE prior to a suffix of length
 404    SUFFIXLEN must be "XXXXXX";
 405    they are replaced with a string that makes the file name unique.
 406    The file is then created, ensuring it didn't exist before.
 407    The file is created read-write (mask at least 0600 & ~umask), but it may be
 408    world-readable and world-writable (mask 0666 & ~umask), depending on the
 409    implementation.
 410    Returns the open file descriptor if successful, otherwise -1 and errno
 411    set.  */
 412 # if !@HAVE_MKSTEMPS@
 413 _GL_FUNCDECL_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/)
 414                                  _GL_ARG_NONNULL ((1)));
 415 # endif
 416 _GL_CXXALIAS_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/));
 417 _GL_CXXALIASWARN (mkstemps);
 418 #elif defined GNULIB_POSIXCHECK
 419 # undef mkstemps
 420 # if HAVE_RAW_DECL_MKSTEMPS
 421 _GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
 422                  "use gnulib module mkstemps for portability");
 423 # endif
 424 #endif
 425
 426 #if @GNULIB_PTSNAME@
 427 /* Return the pathname of the pseudo-terminal slave associated with
 428    the master FD is open on, or NULL on errors.  */
 429 # if !@HAVE_PTSNAME@
 430 _GL_FUNCDECL_SYS (ptsname, char *, (int fd));
 431 # endif
 432 _GL_CXXALIAS_SYS (ptsname, char *, (int fd));
 433 _GL_CXXALIASWARN (ptsname);
 434 #elif defined GNULIB_POSIXCHECK
 435 # undef ptsname
 436 # if HAVE_RAW_DECL_PTSNAME
 437 _GL_WARN_ON_USE (ptsname, "ptsname is not portable - "
 438                  "use gnulib module ptsname for portability");
 439 # endif
 440 #endif
 441
 442 #if @GNULIB_PUTENV@
 443 # if @REPLACE_PUTENV@
 444 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 445 #   undef putenv
 446 #   define putenv rpl_putenv
 447 #  endif
 448 _GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
 449 _GL_CXXALIAS_RPL (putenv, int, (char *string));
 450 # else
 451 _GL_CXXALIAS_SYS (putenv, int, (char *string));
 452 # endif
 453 _GL_CXXALIASWARN (putenv);
 454 #endif
 455
 456
 457 #if @GNULIB_RANDOM_R@
 458 # if !@HAVE_RANDOM_R@
 459 #  ifndef RAND_MAX
 460 #   define RAND_MAX 2147483647
 461 #  endif
 462 # endif
 463 #endif
 464
 465 #if @GNULIB_RANDOM_R@
 466 # if !@HAVE_RANDOM_R@
 467 _GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
 468                                  _GL_ARG_NONNULL ((1, 2)));
 469 # endif
 470 _GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
 471 _GL_CXXALIASWARN (random_r);
 472 #elif defined GNULIB_POSIXCHECK
 473 # undef random_r
 474 # if HAVE_RAW_DECL_RANDOM_R
 475 _GL_WARN_ON_USE (random_r, "random_r is unportable - "
 476                  "use gnulib module random_r for portability");
 477 # endif
 478 #endif
 479
 480 #if @GNULIB_RANDOM_R@
 481 # if !@HAVE_RANDOM_R@
 482 _GL_FUNCDECL_SYS (srandom_r, int,
 483                   (unsigned int seed, struct random_data *rand_state)
 484                   _GL_ARG_NONNULL ((2)));
 485 # endif
 486 _GL_CXXALIAS_SYS (srandom_r, int,
 487                   (unsigned int seed, struct random_data *rand_state));
 488 _GL_CXXALIASWARN (srandom_r);
 489 #elif defined GNULIB_POSIXCHECK
 490 # undef srandom_r
 491 # if HAVE_RAW_DECL_SRANDOM_R
 492 _GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
 493                  "use gnulib module random_r for portability");
 494 # endif
 495 #endif
 496
 497 #if @GNULIB_RANDOM_R@
 498 # if !@HAVE_RANDOM_R@
 499 _GL_FUNCDECL_SYS (initstate_r, int,
 500                   (unsigned int seed, char *buf, size_t buf_size,
 501                    struct random_data *rand_state)
 502                   _GL_ARG_NONNULL ((2, 4)));
 503 # endif
 504 _GL_CXXALIAS_SYS (initstate_r, int,
 505                   (unsigned int seed, char *buf, size_t buf_size,
 506                    struct random_data *rand_state));
 507 _GL_CXXALIASWARN (initstate_r);
 508 #elif defined GNULIB_POSIXCHECK
 509 # undef initstate_r
 510 # if HAVE_RAW_DECL_INITSTATE_R
 511 _GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
 512                  "use gnulib module random_r for portability");
 513 # endif
 514 #endif
 515
 516 #if @GNULIB_RANDOM_R@
 517 # if !@HAVE_RANDOM_R@
 518 _GL_FUNCDECL_SYS (setstate_r, int,
 519                   (char *arg_state, struct random_data *rand_state)
 520                   _GL_ARG_NONNULL ((1, 2)));
 521 # endif
 522 _GL_CXXALIAS_SYS (setstate_r, int,
 523                   (char *arg_state, struct random_data *rand_state));
 524 _GL_CXXALIASWARN (setstate_r);
 525 #elif defined GNULIB_POSIXCHECK
 526 # undef setstate_r
 527 # if HAVE_RAW_DECL_SETSTATE_R
 528 _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 529                  "use gnulib module random_r for portability");
 530 # endif
 531 #endif
 532
 533
 534 #if @GNULIB_REALLOC_POSIX@
 535 # if @REPLACE_REALLOC@
 536 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
 537         || _GL_USE_STDLIB_ALLOC)
 538 #   undef realloc
 539 #   define realloc rpl_realloc
 540 #  endif
 541 _GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
 542 _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 543 # else
 544 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
 545 # endif
 546 _GL_CXXALIASWARN (realloc);
 547 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 548 # undef realloc
 549 /* Assume realloc is always declared.  */
 550 _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
 551                  "use gnulib module realloc-posix for portability");
 552 #endif
 553
 554 #if @GNULIB_REALPATH@
 555 # if @REPLACE_REALPATH@
 556 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 557 #   define realpath rpl_realpath
 558 #  endif
 559 _GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
 560                                     _GL_ARG_NONNULL ((1)));
 561 _GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
 562 # else
 563 #  if !@HAVE_REALPATH@
 564 _GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
 565                                     _GL_ARG_NONNULL ((1)));
 566 #  endif
 567 _GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
 568 # endif
 569 _GL_CXXALIASWARN (realpath);
 570 #elif defined GNULIB_POSIXCHECK
 571 # undef realpath
 572 # if HAVE_RAW_DECL_REALPATH
 573 _GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
 574                  "canonicalize or canonicalize-lgpl for portability");
 575 # endif
 576 #endif
 577
 578 #if @GNULIB_RPMATCH@
 579 /* Test a user response to a question.
 580    Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear.  */
 581 # if !@HAVE_RPMATCH@
 582 _GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
 583 # endif
 584 _GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
 585 _GL_CXXALIASWARN (rpmatch);
 586 #elif defined GNULIB_POSIXCHECK
 587 # undef rpmatch
 588 # if HAVE_RAW_DECL_RPMATCH
 589 _GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
 590                  "use gnulib module rpmatch for portability");
 591 # endif
 592 #endif
 593
 594 #if @GNULIB_SETENV@
 595 /* Set NAME to VALUE in the environment.
 596    If REPLACE is nonzero, overwrite an existing value.  */
 597 # if @REPLACE_SETENV@
 598 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 599 #   undef setenv
 600 #   define setenv rpl_setenv
 601 #  endif
 602 _GL_FUNCDECL_RPL (setenv, int,
 603                   (const char *name, const char *value, int replace)
 604                   _GL_ARG_NONNULL ((1)));
 605 _GL_CXXALIAS_RPL (setenv, int,
 606                   (const char *name, const char *value, int replace));
 607 # else
 608 #  if !@HAVE_DECL_SETENV@
 609 _GL_FUNCDECL_SYS (setenv, int,
 610                   (const char *name, const char *value, int replace)
 611                   _GL_ARG_NONNULL ((1)));
 612 #  endif
 613 _GL_CXXALIAS_SYS (setenv, int,
 614                   (const char *name, const char *value, int replace));
 615 # endif
 616 # if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
 617 _GL_CXXALIASWARN (setenv);
 618 # endif
 619 #elif defined GNULIB_POSIXCHECK
 620 # undef setenv
 621 # if HAVE_RAW_DECL_SETENV
 622 _GL_WARN_ON_USE (setenv, "setenv is unportable - "
 623                  "use gnulib module setenv for portability");
 624 # endif
 625 #endif
 626
 627 #if @GNULIB_STRTOD@
 628  /* Parse a double from STRING, updating ENDP if appropriate.  */
 629 # if @REPLACE_STRTOD@
 630 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 631 #   define strtod rpl_strtod
 632 #  endif
 633 _GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
 634                                   _GL_ARG_NONNULL ((1)));
 635 _GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
 636 # else
 637 #  if !@HAVE_STRTOD@
 638 _GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
 639                                   _GL_ARG_NONNULL ((1)));
 640 #  endif
 641 _GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
 642 # endif
 643 _GL_CXXALIASWARN (strtod);
 644 #elif defined GNULIB_POSIXCHECK
 645 # undef strtod
 646 # if HAVE_RAW_DECL_STRTOD
 647 _GL_WARN_ON_USE (strtod, "strtod is unportable - "
 648                  "use gnulib module strtod for portability");
 649 # endif
 650 #endif
 651
 652 #if @GNULIB_STRTOLL@
 653 /* Parse a signed integer whose textual representation starts at STRING.
 654    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
 655    it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
 656    "0x").
 657    If ENDPTR is not NULL, the address of the first byte after the integer is
 658    stored in *ENDPTR.
 659    Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
 660    to ERANGE.  */
 661 # if !@HAVE_STRTOLL@
 662 _GL_FUNCDECL_SYS (strtoll, long long,
 663                   (const char *string, char **endptr, int base)
 664                   _GL_ARG_NONNULL ((1)));
 665 # endif
 666 _GL_CXXALIAS_SYS (strtoll, long long,
 667                   (const char *string, char **endptr, int base));
 668 _GL_CXXALIASWARN (strtoll);
 669 #elif defined GNULIB_POSIXCHECK
 670 # undef strtoll
 671 # if HAVE_RAW_DECL_STRTOLL
 672 _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
 673                  "use gnulib module strtoll for portability");
 674 # endif
 675 #endif
 676
 677 #if @GNULIB_STRTOULL@
 678 /* Parse an unsigned integer whose textual representation starts at STRING.
 679    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
 680    it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
 681    "0x").
 682    If ENDPTR is not NULL, the address of the first byte after the integer is
 683    stored in *ENDPTR.
 684    Upon overflow, the return value is ULLONG_MAX, and errno is set to
 685    ERANGE.  */
 686 # if !@HAVE_STRTOULL@
 687 _GL_FUNCDECL_SYS (strtoull, unsigned long long,
 688                   (const char *string, char **endptr, int base)
 689                   _GL_ARG_NONNULL ((1)));
 690 # endif
 691 _GL_CXXALIAS_SYS (strtoull, unsigned long long,
 692                   (const char *string, char **endptr, int base));
 693 _GL_CXXALIASWARN (strtoull);
 694 #elif defined GNULIB_POSIXCHECK
 695 # undef strtoull
 696 # if HAVE_RAW_DECL_STRTOULL
 697 _GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
 698                  "use gnulib module strtoull for portability");
 699 # endif
 700 #endif
 701
 702 #if @GNULIB_UNLOCKPT@
 703 /* Unlock the slave side of the pseudo-terminal whose master side is specified
 704    by FD, so that it can be opened.  */
 705 # if !@HAVE_UNLOCKPT@
 706 _GL_FUNCDECL_SYS (unlockpt, int, (int fd));
 707 # endif
 708 _GL_CXXALIAS_SYS (unlockpt, int, (int fd));
 709 _GL_CXXALIASWARN (unlockpt);
 710 #elif defined GNULIB_POSIXCHECK
 711 # undef unlockpt
 712 # if HAVE_RAW_DECL_UNLOCKPT
 713 _GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
 714                  "use gnulib module unlockpt for portability");
 715 # endif
 716 #endif
 717
 718 #if @GNULIB_UNSETENV@
 719 /* Remove the variable NAME from the environment.  */
 720 # if @REPLACE_UNSETENV@
 721 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 722 #   undef unsetenv
 723 #   define unsetenv rpl_unsetenv
 724 #  endif
 725 _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 726 _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
 727 # else
 728 #  if !@HAVE_DECL_UNSETENV@
 729 _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 730 #  endif
 731 _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
 732 # endif
 733 # if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
 734 _GL_CXXALIASWARN (unsetenv);
 735 # endif
 736 #elif defined GNULIB_POSIXCHECK
 737 # undef unsetenv
 738 # if HAVE_RAW_DECL_UNSETENV
 739 _GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
 740                  "use gnulib module unsetenv for portability");
 741 # endif
 742 #endif
 743
 744 /* Convert a wide character to a multibyte character.  */
 745 #if @GNULIB_WCTOMB@
 746 # if @REPLACE_WCTOMB@
 747 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 748 #   undef wctomb
 749 #   define wctomb rpl_wctomb
 750 #  endif
 751 _GL_FUNCDECL_RPL (wctomb, int, (char *s, wchar_t wc));
 752 _GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
 753 # else
 754 _GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
 755 # endif
 756 _GL_CXXALIASWARN (wctomb);
 757 #endif
 758
 759
 760 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 761 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 762 #endif