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