lib/stdlib.in.h

   1 /* A GNU-like <stdlib.h>.
   2
   3    Copyright (C) 1995, 2001-2004, 2006-2014 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_system_stdlib_h || defined __need_malloc_and_calloc
  24 /* Special invocation conventions inside some gnulib header files,
  25    and inside some glibc header files, respectively.  */
  26
  27 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  28
  29 #else
  30 /* Normal invocation convention.  */
  31
  32 #ifndef _@GUARD_PREFIX@_STDLIB_H
  33
  34 /* The include_next requires a split double-inclusion guard.  */
  35 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  36
  37 #ifndef _@GUARD_PREFIX@_STDLIB_H
  38 #define _@GUARD_PREFIX@_STDLIB_H
  39
  40 /* NetBSD 5.0 mis-defines NULL.  */
  41 #include <stddef.h>
  42
  43 /* MirBSD 10 defines WEXITSTATUS in <sys/wait.h>, not in <stdlib.h>.  */
  44 #if @GNULIB_SYSTEM_POSIX@ && !defined WEXITSTATUS
  45 # include <sys/wait.h>
  46 #endif
  47
  48 /* Solaris declares getloadavg() in <sys/loadavg.h>.  */
  49 #if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
  50 # include <sys/loadavg.h>
  51 #endif
  52
  53 /* Native Windows platforms declare mktemp() in <io.h>.  */
  54 #if 0 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
  55 # include <io.h>
  56 #endif
  57
  58 #if @GNULIB_RANDOM_R@
  59
  60 /* OSF/1 5.1 declares 'struct random_data' in <random.h>, which is included
  61    from <stdlib.h> if _REENTRANT is defined.  Include it whenever we need
  62    'struct random_data'.  */
  63 # if @HAVE_RANDOM_H@
  64 #  include <random.h>
  65 # endif
  66
  67 # if !@HAVE_STRUCT_RANDOM_DATA@ || @REPLACE_RANDOM_R@ || !@HAVE_RANDOM_R@
  68 #  include <stdint.h>
  69 # endif
  70
  71 # if !@HAVE_STRUCT_RANDOM_DATA@
  72 /* Define 'struct random_data'.
  73    But allow multiple gnulib generated <stdlib.h> replacements to coexist.  */
  74 #  if !GNULIB_defined_struct_random_data
  75 struct random_data
  76 {
  77   int32_t *fptr;                /* Front pointer.  */
  78   int32_t *rptr;                /* Rear pointer.  */
  79   int32_t *state;               /* Array of state values.  */
  80   int rand_type;                /* Type of random number generator.  */
  81   int rand_deg;                 /* Degree of random number generator.  */
  82   int rand_sep;                 /* Distance between front and rear.  */
  83   int32_t *end_ptr;             /* Pointer behind state table.  */
  84 };
  85 #   define GNULIB_defined_struct_random_data 1
  86 #  endif
  87 # endif
  88 #endif
  89
  90 #if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
  91 /* On Mac OS X 10.3, only <unistd.h> declares mkstemp.  */
  92 /* On Mac OS X 10.5, only <unistd.h> declares mkstemps.  */
  93 /* On Cygwin 1.7.1, only <unistd.h> declares getsubopt.  */
  94 /* But avoid namespace pollution on glibc systems and native Windows.  */
  95 # include <unistd.h>
  96 #endif
  97
  98 /* The __attribute__ feature is available in gcc versions 2.5 and later.
  99    The attribute __pure__ was added in gcc 2.96.  */
 100 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
 101 # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
 102 #else
 103 # define _GL_ATTRIBUTE_PURE /* empty */
 104 #endif
 105
 106 /* The definition of _Noreturn is copied here.  */
 107
 108 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 109
 110 /* The definition of _GL_ARG_NONNULL is copied here.  */
 111
 112 /* The definition of _GL_WARN_ON_USE is copied here.  */
 113
 114
 115 /* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
 116 #ifndef EXIT_SUCCESS
 117 # define EXIT_SUCCESS 0
 118 #endif
 119 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
 120    with proper operation of xargs.  */
 121 #ifndef EXIT_FAILURE
 122 # define EXIT_FAILURE 1
 123 #elif EXIT_FAILURE != 1
 124 # undef EXIT_FAILURE
 125 # define EXIT_FAILURE 1
 126 #endif
 127
 128
 129 #if @GNULIB__EXIT@
 130 /* Terminate the current process with the given return code, without running
 131    the 'atexit' handlers.  */
 132 # if !@HAVE__EXIT@
 133 _GL_FUNCDECL_SYS (_Exit, _Noreturn void, (int status));
 134 # endif
 135 _GL_CXXALIAS_SYS (_Exit, void, (int status));
 136 _GL_CXXALIASWARN (_Exit);
 137 #elif defined GNULIB_POSIXCHECK
 138 # undef _Exit
 139 # if HAVE_RAW_DECL__EXIT
 140 _GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
 141                  "use gnulib module _Exit for portability");
 142 # endif
 143 #endif
 144
 145
 146 #if @GNULIB_ATOLL@
 147 /* Parse a signed decimal integer.
 148    Returns the value of the integer.  Errors are not detected.  */
 149 # if !@HAVE_ATOLL@
 150 _GL_FUNCDECL_SYS (atoll, long long, (const char *string)
 151                                     _GL_ATTRIBUTE_PURE
 152                                     _GL_ARG_NONNULL ((1)));
 153 # endif
 154 _GL_CXXALIAS_SYS (atoll, long long, (const char *string));
 155 _GL_CXXALIASWARN (atoll);
 156 #elif defined GNULIB_POSIXCHECK
 157 # undef atoll
 158 # if HAVE_RAW_DECL_ATOLL
 159 _GL_WARN_ON_USE (atoll, "atoll is unportable - "
 160                  "use gnulib module atoll for portability");
 161 # endif
 162 #endif
 163
 164 #if @GNULIB_CALLOC_POSIX@
 165 # if @REPLACE_CALLOC@
 166 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 167 #   undef calloc
 168 #   define calloc rpl_calloc
 169 #  endif
 170 _GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
 171 _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
 172 # else
 173 _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
 174 # endif
 175 _GL_CXXALIASWARN (calloc);
 176 #elif defined GNULIB_POSIXCHECK
 177 # undef calloc
 178 /* Assume calloc is always declared.  */
 179 _GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
 180                  "use gnulib module calloc-posix for portability");
 181 #endif
 182
 183 #if @GNULIB_CANONICALIZE_FILE_NAME@
 184 # if @REPLACE_CANONICALIZE_FILE_NAME@
 185 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 186 #   define canonicalize_file_name rpl_canonicalize_file_name
 187 #  endif
 188 _GL_FUNCDECL_RPL (canonicalize_file_name, char *, (const char *name)
 189                                                   _GL_ARG_NONNULL ((1)));
 190 _GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name));
 191 # else
 192 #  if !@HAVE_CANONICALIZE_FILE_NAME@
 193 _GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name)
 194                                                   _GL_ARG_NONNULL ((1)));
 195 #  endif
 196 _GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name));
 197 # endif
 198 _GL_CXXALIASWARN (canonicalize_file_name);
 199 #elif defined GNULIB_POSIXCHECK
 200 # undef canonicalize_file_name
 201 # if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
 202 _GL_WARN_ON_USE (canonicalize_file_name,
 203                  "canonicalize_file_name is unportable - "
 204                  "use gnulib module canonicalize-lgpl for portability");
 205 # endif
 206 #endif
 207
 208 #if @GNULIB_GETLOADAVG@
 209 /* Store max(NELEM,3) load average numbers in LOADAVG[].
 210    The three numbers are the load average of the last 1 minute, the last 5
 211    minutes, and the last 15 minutes, respectively.
 212    LOADAVG is an array of NELEM numbers.  */
 213 # if !@HAVE_DECL_GETLOADAVG@
 214 _GL_FUNCDECL_SYS (getloadavg, int, (double loadavg[], int nelem)
 215                                    _GL_ARG_NONNULL ((1)));
 216 # endif
 217 _GL_CXXALIAS_SYS (getloadavg, int, (double loadavg[], int nelem));
 218 _GL_CXXALIASWARN (getloadavg);
 219 #elif defined GNULIB_POSIXCHECK
 220 # undef getloadavg
 221 # if HAVE_RAW_DECL_GETLOADAVG
 222 _GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
 223                  "use gnulib module getloadavg for portability");
 224 # endif
 225 #endif
 226
 227 #if @GNULIB_GETSUBOPT@
 228 /* Assuming *OPTIONP is a comma separated list of elements of the form
 229    "token" or "token=value", getsubopt parses the first of these elements.
 230    If the first element refers to a "token" that is member of the given
 231    NULL-terminated array of tokens:
 232      - It replaces the comma with a NUL byte, updates *OPTIONP to point past
 233        the first option and the comma, sets *VALUEP to the value of the
 234        element (or NULL if it doesn't contain an "=" sign),
 235      - It returns the index of the "token" in the given array of tokens.
 236    Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
 237    For more details see the POSIX:2001 specification.
 238    http://www.opengroup.org/susv3xsh/getsubopt.html */
 239 # if !@HAVE_GETSUBOPT@
 240 _GL_FUNCDECL_SYS (getsubopt, int,
 241                   (char **optionp, char *const *tokens, char **valuep)
 242                   _GL_ARG_NONNULL ((1, 2, 3)));
 243 # endif
 244 _GL_CXXALIAS_SYS (getsubopt, int,
 245                   (char **optionp, char *const *tokens, char **valuep));
 246 _GL_CXXALIASWARN (getsubopt);
 247 #elif defined GNULIB_POSIXCHECK
 248 # undef getsubopt
 249 # if HAVE_RAW_DECL_GETSUBOPT
 250 _GL_WARN_ON_USE (getsubopt, "getsubopt is unportable - "
 251                  "use gnulib module getsubopt for portability");
 252 # endif
 253 #endif
 254
 255 #if @GNULIB_GRANTPT@
 256 /* Change the ownership and access permission of the slave side of the
 257    pseudo-terminal whose master side is specified by FD.  */
 258 # if !@HAVE_GRANTPT@
 259 _GL_FUNCDECL_SYS (grantpt, int, (int fd));
 260 # endif
 261 _GL_CXXALIAS_SYS (grantpt, int, (int fd));
 262 _GL_CXXALIASWARN (grantpt);
 263 #elif defined GNULIB_POSIXCHECK
 264 # undef grantpt
 265 # if HAVE_RAW_DECL_GRANTPT
 266 _GL_WARN_ON_USE (grantpt, "grantpt is not portable - "
 267                  "use gnulib module grantpt for portability");
 268 # endif
 269 #endif
 270
 271 /* If _GL_USE_STDLIB_ALLOC is nonzero, the including module does not
 272    rely on GNU or POSIX semantics for malloc and realloc (for example,
 273    by never specifying a zero size), so it does not need malloc or
 274    realloc to be redefined.  */
 275 #if @GNULIB_MALLOC_POSIX@
 276 # if @REPLACE_MALLOC@
 277 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
 278         || _GL_USE_STDLIB_ALLOC)
 279 #   undef malloc
 280 #   define malloc rpl_malloc
 281 #  endif
 282 _GL_FUNCDECL_RPL (malloc, void *, (size_t size));
 283 _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
 284 # else
 285 _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
 286 # endif
 287 _GL_CXXALIASWARN (malloc);
 288 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 289 # undef malloc
 290 /* Assume malloc is always declared.  */
 291 _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
 292                  "use gnulib module malloc-posix for portability");
 293 #endif
 294
 295 /* Convert a multibyte character to a wide character.  */
 296 #if @GNULIB_MBTOWC@
 297 # if @REPLACE_MBTOWC@
 298 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 299 #   undef mbtowc
 300 #   define mbtowc rpl_mbtowc
 301 #  endif
 302 _GL_FUNCDECL_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 303 _GL_CXXALIAS_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 304 # else
 305 _GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 306 # endif
 307 _GL_CXXALIASWARN (mbtowc);
 308 #endif
 309
 310 #if @GNULIB_MKDTEMP@
 311 /* Create a unique temporary directory from TEMPLATE.
 312    The last six characters of TEMPLATE must be "XXXXXX";
 313    they are replaced with a string that makes the directory name unique.
 314    Returns TEMPLATE, or a null pointer if it cannot get a unique name.
 315    The directory is created mode 700.  */
 316 # if !@HAVE_MKDTEMP@
 317 _GL_FUNCDECL_SYS (mkdtemp, char *, (char * /*template*/) _GL_ARG_NONNULL ((1)));
 318 # endif
 319 _GL_CXXALIAS_SYS (mkdtemp, char *, (char * /*template*/));
 320 _GL_CXXALIASWARN (mkdtemp);
 321 #elif defined GNULIB_POSIXCHECK
 322 # undef mkdtemp
 323 # if HAVE_RAW_DECL_MKDTEMP
 324 _GL_WARN_ON_USE (mkdtemp, "mkdtemp is unportable - "
 325                  "use gnulib module mkdtemp for portability");
 326 # endif
 327 #endif
 328
 329 #if @GNULIB_MKOSTEMP@
 330 /* Create a unique temporary file from TEMPLATE.
 331    The last six characters of TEMPLATE must be "XXXXXX";
 332    they are replaced with a string that makes the file name unique.
 333    The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
 334    and O_TEXT, O_BINARY (defined in "binary-io.h").
 335    The file is then created, with the specified flags, ensuring it didn't exist
 336    before.
 337    The file is created read-write (mask at least 0600 & ~umask), but it may be
 338    world-readable and world-writable (mask 0666 & ~umask), depending on the
 339    implementation.
 340    Returns the open file descriptor if successful, otherwise -1 and errno
 341    set.  */
 342 # if !@HAVE_MKOSTEMP@
 343 _GL_FUNCDECL_SYS (mkostemp, int, (char * /*template*/, int /*flags*/)
 344                                  _GL_ARG_NONNULL ((1)));
 345 # endif
 346 _GL_CXXALIAS_SYS (mkostemp, int, (char * /*template*/, int /*flags*/));
 347 _GL_CXXALIASWARN (mkostemp);
 348 #elif defined GNULIB_POSIXCHECK
 349 # undef mkostemp
 350 # if HAVE_RAW_DECL_MKOSTEMP
 351 _GL_WARN_ON_USE (mkostemp, "mkostemp is unportable - "
 352                  "use gnulib module mkostemp for portability");
 353 # endif
 354 #endif
 355
 356 #if @GNULIB_MKOSTEMPS@
 357 /* Create a unique temporary file from TEMPLATE.
 358    The last six characters of TEMPLATE before a suffix of length
 359    SUFFIXLEN must be "XXXXXX";
 360    they are replaced with a string that makes the file name unique.
 361    The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
 362    and O_TEXT, O_BINARY (defined in "binary-io.h").
 363    The file is then created, with the specified flags, ensuring it didn't exist
 364    before.
 365    The file is created read-write (mask at least 0600 & ~umask), but it may be
 366    world-readable and world-writable (mask 0666 & ~umask), depending on the
 367    implementation.
 368    Returns the open file descriptor if successful, otherwise -1 and errno
 369    set.  */
 370 # if !@HAVE_MKOSTEMPS@
 371 _GL_FUNCDECL_SYS (mkostemps, int,
 372                   (char * /*template*/, int /*suffixlen*/, int /*flags*/)
 373                   _GL_ARG_NONNULL ((1)));
 374 # endif
 375 _GL_CXXALIAS_SYS (mkostemps, int,
 376                   (char * /*template*/, int /*suffixlen*/, int /*flags*/));
 377 _GL_CXXALIASWARN (mkostemps);
 378 #elif defined GNULIB_POSIXCHECK
 379 # undef mkostemps
 380 # if HAVE_RAW_DECL_MKOSTEMPS
 381 _GL_WARN_ON_USE (mkostemps, "mkostemps is unportable - "
 382                  "use gnulib module mkostemps for portability");
 383 # endif
 384 #endif
 385
 386 #if @GNULIB_MKSTEMP@
 387 /* Create a unique temporary file from TEMPLATE.
 388    The last six characters of TEMPLATE must be "XXXXXX";
 389    they are replaced with a string that makes the file name unique.
 390    The file is then created, ensuring it didn't exist before.
 391    The file is created read-write (mask at least 0600 & ~umask), but it may be
 392    world-readable and world-writable (mask 0666 & ~umask), depending on the
 393    implementation.
 394    Returns the open file descriptor if successful, otherwise -1 and errno
 395    set.  */
 396 # if @REPLACE_MKSTEMP@
 397 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 398 #   define mkstemp rpl_mkstemp
 399 #  endif
 400 _GL_FUNCDECL_RPL (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
 401 _GL_CXXALIAS_RPL (mkstemp, int, (char * /*template*/));
 402 # else
 403 #  if ! @HAVE_MKSTEMP@
 404 _GL_FUNCDECL_SYS (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
 405 #  endif
 406 _GL_CXXALIAS_SYS (mkstemp, int, (char * /*template*/));
 407 # endif
 408 _GL_CXXALIASWARN (mkstemp);
 409 #elif defined GNULIB_POSIXCHECK
 410 # undef mkstemp
 411 # if HAVE_RAW_DECL_MKSTEMP
 412 _GL_WARN_ON_USE (mkstemp, "mkstemp is unportable - "
 413                  "use gnulib module mkstemp for portability");
 414 # endif
 415 #endif
 416
 417 #if @GNULIB_MKSTEMPS@
 418 /* Create a unique temporary file from TEMPLATE.
 419    The last six characters of TEMPLATE prior to a suffix of length
 420    SUFFIXLEN must be "XXXXXX";
 421    they are replaced with a string that makes the file name unique.
 422    The file is then created, ensuring it didn't exist before.
 423    The file is created read-write (mask at least 0600 & ~umask), but it may be
 424    world-readable and world-writable (mask 0666 & ~umask), depending on the
 425    implementation.
 426    Returns the open file descriptor if successful, otherwise -1 and errno
 427    set.  */
 428 # if !@HAVE_MKSTEMPS@
 429 _GL_FUNCDECL_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/)
 430                                  _GL_ARG_NONNULL ((1)));
 431 # endif
 432 _GL_CXXALIAS_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/));
 433 _GL_CXXALIASWARN (mkstemps);
 434 #elif defined GNULIB_POSIXCHECK
 435 # undef mkstemps
 436 # if HAVE_RAW_DECL_MKSTEMPS
 437 _GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
 438                  "use gnulib module mkstemps for portability");
 439 # endif
 440 #endif
 441
 442 #if @GNULIB_POSIX_OPENPT@
 443 /* Return an FD open to the master side of a pseudo-terminal.  Flags should
 444    include O_RDWR, and may also include O_NOCTTY.  */
 445 # if !@HAVE_POSIX_OPENPT@
 446 _GL_FUNCDECL_SYS (posix_openpt, int, (int flags));
 447 # endif
 448 _GL_CXXALIAS_SYS (posix_openpt, int, (int flags));
 449 _GL_CXXALIASWARN (posix_openpt);
 450 #elif defined GNULIB_POSIXCHECK
 451 # undef posix_openpt
 452 # if HAVE_RAW_DECL_POSIX_OPENPT
 453 _GL_WARN_ON_USE (posix_openpt, "posix_openpt is not portable - "
 454                  "use gnulib module posix_openpt for portability");
 455 # endif
 456 #endif
 457
 458 #if @GNULIB_PTSNAME@
 459 /* Return the pathname of the pseudo-terminal slave associated with
 460    the master FD is open on, or NULL on errors.  */
 461 # if @REPLACE_PTSNAME@
 462 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 463 #   undef ptsname
 464 #   define ptsname rpl_ptsname
 465 #  endif
 466 _GL_FUNCDECL_RPL (ptsname, char *, (int fd));
 467 _GL_CXXALIAS_RPL (ptsname, char *, (int fd));
 468 # else
 469 #  if !@HAVE_PTSNAME@
 470 _GL_FUNCDECL_SYS (ptsname, char *, (int fd));
 471 #  endif
 472 _GL_CXXALIAS_SYS (ptsname, char *, (int fd));
 473 # endif
 474 _GL_CXXALIASWARN (ptsname);
 475 #elif defined GNULIB_POSIXCHECK
 476 # undef ptsname
 477 # if HAVE_RAW_DECL_PTSNAME
 478 _GL_WARN_ON_USE (ptsname, "ptsname is not portable - "
 479                  "use gnulib module ptsname for portability");
 480 # endif
 481 #endif
 482
 483 #if @GNULIB_PTSNAME_R@
 484 /* Set the pathname of the pseudo-terminal slave associated with
 485    the master FD is open on and return 0, or set errno and return
 486    non-zero on errors.  */
 487 # if @REPLACE_PTSNAME_R@
 488 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 489 #   undef ptsname_r
 490 #   define ptsname_r rpl_ptsname_r
 491 #  endif
 492 _GL_FUNCDECL_RPL (ptsname_r, int, (int fd, char *buf, size_t len));
 493 _GL_CXXALIAS_RPL (ptsname_r, int, (int fd, char *buf, size_t len));
 494 # else
 495 #  if !@HAVE_PTSNAME_R@
 496 _GL_FUNCDECL_SYS (ptsname_r, int, (int fd, char *buf, size_t len));
 497 #  endif
 498 _GL_CXXALIAS_SYS (ptsname_r, int, (int fd, char *buf, size_t len));
 499 # endif
 500 _GL_CXXALIASWARN (ptsname_r);
 501 #elif defined GNULIB_POSIXCHECK
 502 # undef ptsname_r
 503 # if HAVE_RAW_DECL_PTSNAME_R
 504 _GL_WARN_ON_USE (ptsname_r, "ptsname_r is not portable - "
 505                  "use gnulib module ptsname_r for portability");
 506 # endif
 507 #endif
 508
 509 #if @GNULIB_PUTENV@
 510 # if @REPLACE_PUTENV@
 511 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 512 #   undef putenv
 513 #   define putenv rpl_putenv
 514 #  endif
 515 _GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
 516 _GL_CXXALIAS_RPL (putenv, int, (char *string));
 517 # else
 518 _GL_CXXALIAS_SYS (putenv, int, (char *string));
 519 # endif
 520 _GL_CXXALIASWARN (putenv);
 521 #endif
 522
 523
 524 #if @GNULIB_RANDOM_R@
 525 # if !@HAVE_RANDOM_R@
 526 #  ifndef RAND_MAX
 527 #   define RAND_MAX 2147483647
 528 #  endif
 529 # endif
 530 #endif
 531
 532
 533 #if @GNULIB_RANDOM@
 534 # if !@HAVE_RANDOM@
 535 _GL_FUNCDECL_SYS (random, long, (void));
 536 # endif
 537 _GL_CXXALIAS_SYS (random, long, (void));
 538 _GL_CXXALIASWARN (random);
 539 #elif defined GNULIB_POSIXCHECK
 540 # undef random
 541 # if HAVE_RAW_DECL_RANDOM
 542 _GL_WARN_ON_USE (random, "random is unportable - "
 543                  "use gnulib module random for portability");
 544 # endif
 545 #endif
 546
 547 #if @GNULIB_RANDOM@
 548 # if !@HAVE_RANDOM@
 549 _GL_FUNCDECL_SYS (srandom, void, (unsigned int seed));
 550 # endif
 551 _GL_CXXALIAS_SYS (srandom, void, (unsigned int seed));
 552 _GL_CXXALIASWARN (srandom);
 553 #elif defined GNULIB_POSIXCHECK
 554 # undef srandom
 555 # if HAVE_RAW_DECL_SRANDOM
 556 _GL_WARN_ON_USE (srandom, "srandom is unportable - "
 557                  "use gnulib module random for portability");
 558 # endif
 559 #endif
 560
 561 #if @GNULIB_RANDOM@
 562 # if !@HAVE_RANDOM@
 563 _GL_FUNCDECL_SYS (initstate, char *,
 564                   (unsigned int seed, char *buf, size_t buf_size)
 565                   _GL_ARG_NONNULL ((2)));
 566 # endif
 567 _GL_CXXALIAS_SYS (initstate, char *,
 568                   (unsigned int seed, char *buf, size_t buf_size));
 569 _GL_CXXALIASWARN (initstate);
 570 #elif defined GNULIB_POSIXCHECK
 571 # undef initstate
 572 # if HAVE_RAW_DECL_INITSTATE_R
 573 _GL_WARN_ON_USE (initstate, "initstate is unportable - "
 574                  "use gnulib module random for portability");
 575 # endif
 576 #endif
 577
 578 #if @GNULIB_RANDOM@
 579 # if !@HAVE_RANDOM@
 580 _GL_FUNCDECL_SYS (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
 581 # endif
 582 _GL_CXXALIAS_SYS (setstate, char *, (char *arg_state));
 583 _GL_CXXALIASWARN (setstate);
 584 #elif defined GNULIB_POSIXCHECK
 585 # undef setstate
 586 # if HAVE_RAW_DECL_SETSTATE_R
 587 _GL_WARN_ON_USE (setstate, "setstate is unportable - "
 588                  "use gnulib module random for portability");
 589 # endif
 590 #endif
 591
 592
 593 #if @GNULIB_RANDOM_R@
 594 # if @REPLACE_RANDOM_R@
 595 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 596 #   undef random_r
 597 #   define random_r rpl_random_r
 598 #  endif
 599 _GL_FUNCDECL_RPL (random_r, int, (struct random_data *buf, int32_t *result)
 600                                  _GL_ARG_NONNULL ((1, 2)));
 601 _GL_CXXALIAS_RPL (random_r, int, (struct random_data *buf, int32_t *result));
 602 # else
 603 #  if !@HAVE_RANDOM_R@
 604 _GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
 605                                  _GL_ARG_NONNULL ((1, 2)));
 606 #  endif
 607 _GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
 608 # endif
 609 _GL_CXXALIASWARN (random_r);
 610 #elif defined GNULIB_POSIXCHECK
 611 # undef random_r
 612 # if HAVE_RAW_DECL_RANDOM_R
 613 _GL_WARN_ON_USE (random_r, "random_r is unportable - "
 614                  "use gnulib module random_r for portability");
 615 # endif
 616 #endif
 617
 618 #if @GNULIB_RANDOM_R@
 619 # if @REPLACE_RANDOM_R@
 620 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 621 #   undef srandom_r
 622 #   define srandom_r rpl_srandom_r
 623 #  endif
 624 _GL_FUNCDECL_RPL (srandom_r, int,
 625                   (unsigned int seed, struct random_data *rand_state)
 626                   _GL_ARG_NONNULL ((2)));
 627 _GL_CXXALIAS_RPL (srandom_r, int,
 628                   (unsigned int seed, struct random_data *rand_state));
 629 # else
 630 #  if !@HAVE_RANDOM_R@
 631 _GL_FUNCDECL_SYS (srandom_r, int,
 632                   (unsigned int seed, struct random_data *rand_state)
 633                   _GL_ARG_NONNULL ((2)));
 634 #  endif
 635 _GL_CXXALIAS_SYS (srandom_r, int,
 636                   (unsigned int seed, struct random_data *rand_state));
 637 # endif
 638 _GL_CXXALIASWARN (srandom_r);
 639 #elif defined GNULIB_POSIXCHECK
 640 # undef srandom_r
 641 # if HAVE_RAW_DECL_SRANDOM_R
 642 _GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
 643                  "use gnulib module random_r for portability");
 644 # endif
 645 #endif
 646
 647 #if @GNULIB_RANDOM_R@
 648 # if @REPLACE_RANDOM_R@
 649 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 650 #   undef initstate_r
 651 #   define initstate_r rpl_initstate_r
 652 #  endif
 653 _GL_FUNCDECL_RPL (initstate_r, int,
 654                   (unsigned int seed, char *buf, size_t buf_size,
 655                    struct random_data *rand_state)
 656                   _GL_ARG_NONNULL ((2, 4)));
 657 _GL_CXXALIAS_RPL (initstate_r, int,
 658                   (unsigned int seed, char *buf, size_t buf_size,
 659                    struct random_data *rand_state));
 660 # else
 661 #  if !@HAVE_RANDOM_R@
 662 _GL_FUNCDECL_SYS (initstate_r, int,
 663                   (unsigned int seed, char *buf, size_t buf_size,
 664                    struct random_data *rand_state)
 665                   _GL_ARG_NONNULL ((2, 4)));
 666 #  endif
 667 _GL_CXXALIAS_SYS (initstate_r, int,
 668                   (unsigned int seed, char *buf, size_t buf_size,
 669                    struct random_data *rand_state));
 670 # endif
 671 _GL_CXXALIASWARN (initstate_r);
 672 #elif defined GNULIB_POSIXCHECK
 673 # undef initstate_r
 674 # if HAVE_RAW_DECL_INITSTATE_R
 675 _GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
 676                  "use gnulib module random_r for portability");
 677 # endif
 678 #endif
 679
 680 #if @GNULIB_RANDOM_R@
 681 # if @REPLACE_RANDOM_R@
 682 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 683 #   undef setstate_r
 684 #   define setstate_r rpl_setstate_r
 685 #  endif
 686 _GL_FUNCDECL_RPL (setstate_r, int,
 687                   (char *arg_state, struct random_data *rand_state)
 688                   _GL_ARG_NONNULL ((1, 2)));
 689 _GL_CXXALIAS_RPL (setstate_r, int,
 690                   (char *arg_state, struct random_data *rand_state));
 691 # else
 692 #  if !@HAVE_RANDOM_R@
 693 _GL_FUNCDECL_SYS (setstate_r, int,
 694                   (char *arg_state, struct random_data *rand_state)
 695                   _GL_ARG_NONNULL ((1, 2)));
 696 #  endif
 697 _GL_CXXALIAS_SYS (setstate_r, int,
 698                   (char *arg_state, struct random_data *rand_state));
 699 # endif
 700 _GL_CXXALIASWARN (setstate_r);
 701 #elif defined GNULIB_POSIXCHECK
 702 # undef setstate_r
 703 # if HAVE_RAW_DECL_SETSTATE_R
 704 _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 705                  "use gnulib module random_r for portability");
 706 # endif
 707 #endif
 708
 709
 710 #if @GNULIB_REALLOC_POSIX@
 711 # if @REPLACE_REALLOC@
 712 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
 713         || _GL_USE_STDLIB_ALLOC)
 714 #   undef realloc
 715 #   define realloc rpl_realloc
 716 #  endif
 717 _GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
 718 _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 719 # else
 720 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
 721 # endif
 722 _GL_CXXALIASWARN (realloc);
 723 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 724 # undef realloc
 725 /* Assume realloc is always declared.  */
 726 _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
 727                  "use gnulib module realloc-posix for portability");
 728 #endif
 729
 730 #if @GNULIB_REALPATH@
 731 # if @REPLACE_REALPATH@
 732 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 733 #   define realpath rpl_realpath
 734 #  endif
 735 _GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
 736                                     _GL_ARG_NONNULL ((1)));
 737 _GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
 738 # else
 739 #  if !@HAVE_REALPATH@
 740 _GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
 741                                     _GL_ARG_NONNULL ((1)));
 742 #  endif
 743 _GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
 744 # endif
 745 _GL_CXXALIASWARN (realpath);
 746 #elif defined GNULIB_POSIXCHECK
 747 # undef realpath
 748 # if HAVE_RAW_DECL_REALPATH
 749 _GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
 750                  "canonicalize or canonicalize-lgpl for portability");
 751 # endif
 752 #endif
 753
 754 #if @GNULIB_RPMATCH@
 755 /* Test a user response to a question.
 756    Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear.  */
 757 # if !@HAVE_RPMATCH@
 758 _GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
 759 # endif
 760 _GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
 761 _GL_CXXALIASWARN (rpmatch);
 762 #elif defined GNULIB_POSIXCHECK
 763 # undef rpmatch
 764 # if HAVE_RAW_DECL_RPMATCH
 765 _GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
 766                  "use gnulib module rpmatch for portability");
 767 # endif
 768 #endif
 769
 770 #if @GNULIB_SECURE_GETENV@
 771 /* Look up NAME in the environment, returning 0 in insecure situations.  */
 772 # if !@HAVE_SECURE_GETENV@
 773 _GL_FUNCDECL_SYS (secure_getenv, char *,
 774                   (char const *name) _GL_ARG_NONNULL ((1)));
 775 # endif
 776 _GL_CXXALIAS_SYS (secure_getenv, char *, (char const *name));
 777 _GL_CXXALIASWARN (secure_getenv);
 778 #elif defined GNULIB_POSIXCHECK
 779 # undef secure_getenv
 780 # if HAVE_RAW_DECL_SECURE_GETENV
 781 _GL_WARN_ON_USE (secure_getenv, "secure_getenv is unportable - "
 782                  "use gnulib module secure_getenv for portability");
 783 # endif
 784 #endif
 785
 786 #if @GNULIB_SETENV@
 787 /* Set NAME to VALUE in the environment.
 788    If REPLACE is nonzero, overwrite an existing value.  */
 789 # if @REPLACE_SETENV@
 790 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 791 #   undef setenv
 792 #   define setenv rpl_setenv
 793 #  endif
 794 _GL_FUNCDECL_RPL (setenv, int,
 795                   (const char *name, const char *value, int replace)
 796                   _GL_ARG_NONNULL ((1)));
 797 _GL_CXXALIAS_RPL (setenv, int,
 798                   (const char *name, const char *value, int replace));
 799 # else
 800 #  if !@HAVE_DECL_SETENV@
 801 _GL_FUNCDECL_SYS (setenv, int,
 802                   (const char *name, const char *value, int replace)
 803                   _GL_ARG_NONNULL ((1)));
 804 #  endif
 805 _GL_CXXALIAS_SYS (setenv, int,
 806                   (const char *name, const char *value, int replace));
 807 # endif
 808 # if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
 809 _GL_CXXALIASWARN (setenv);
 810 # endif
 811 #elif defined GNULIB_POSIXCHECK
 812 # undef setenv
 813 # if HAVE_RAW_DECL_SETENV
 814 _GL_WARN_ON_USE (setenv, "setenv is unportable - "
 815                  "use gnulib module setenv for portability");
 816 # endif
 817 #endif
 818
 819 #if @GNULIB_STRTOD@
 820  /* Parse a double from STRING, updating ENDP if appropriate.  */
 821 # if @REPLACE_STRTOD@
 822 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 823 #   define strtod rpl_strtod
 824 #  endif
 825 _GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
 826                                   _GL_ARG_NONNULL ((1)));
 827 _GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
 828 # else
 829 #  if !@HAVE_STRTOD@
 830 _GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
 831                                   _GL_ARG_NONNULL ((1)));
 832 #  endif
 833 _GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
 834 # endif
 835 _GL_CXXALIASWARN (strtod);
 836 #elif defined GNULIB_POSIXCHECK
 837 # undef strtod
 838 # if HAVE_RAW_DECL_STRTOD
 839 _GL_WARN_ON_USE (strtod, "strtod is unportable - "
 840                  "use gnulib module strtod for portability");
 841 # endif
 842 #endif
 843
 844 #if @GNULIB_STRTOLL@
 845 /* Parse a signed integer whose textual representation starts at STRING.
 846    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
 847    it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
 848    "0x").
 849    If ENDPTR is not NULL, the address of the first byte after the integer is
 850    stored in *ENDPTR.
 851    Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
 852    to ERANGE.  */
 853 # if !@HAVE_STRTOLL@
 854 _GL_FUNCDECL_SYS (strtoll, long long,
 855                   (const char *string, char **endptr, int base)
 856                   _GL_ARG_NONNULL ((1)));
 857 # endif
 858 _GL_CXXALIAS_SYS (strtoll, long long,
 859                   (const char *string, char **endptr, int base));
 860 _GL_CXXALIASWARN (strtoll);
 861 #elif defined GNULIB_POSIXCHECK
 862 # undef strtoll
 863 # if HAVE_RAW_DECL_STRTOLL
 864 _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
 865                  "use gnulib module strtoll for portability");
 866 # endif
 867 #endif
 868
 869 #if @GNULIB_STRTOULL@
 870 /* Parse an unsigned integer whose textual representation starts at STRING.
 871    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
 872    it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
 873    "0x").
 874    If ENDPTR is not NULL, the address of the first byte after the integer is
 875    stored in *ENDPTR.
 876    Upon overflow, the return value is ULLONG_MAX, and errno is set to
 877    ERANGE.  */
 878 # if !@HAVE_STRTOULL@
 879 _GL_FUNCDECL_SYS (strtoull, unsigned long long,
 880                   (const char *string, char **endptr, int base)
 881                   _GL_ARG_NONNULL ((1)));
 882 # endif
 883 _GL_CXXALIAS_SYS (strtoull, unsigned long long,
 884                   (const char *string, char **endptr, int base));
 885 _GL_CXXALIASWARN (strtoull);
 886 #elif defined GNULIB_POSIXCHECK
 887 # undef strtoull
 888 # if HAVE_RAW_DECL_STRTOULL
 889 _GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
 890                  "use gnulib module strtoull for portability");
 891 # endif
 892 #endif
 893
 894 #if @GNULIB_UNLOCKPT@
 895 /* Unlock the slave side of the pseudo-terminal whose master side is specified
 896    by FD, so that it can be opened.  */
 897 # if !@HAVE_UNLOCKPT@
 898 _GL_FUNCDECL_SYS (unlockpt, int, (int fd));
 899 # endif
 900 _GL_CXXALIAS_SYS (unlockpt, int, (int fd));
 901 _GL_CXXALIASWARN (unlockpt);
 902 #elif defined GNULIB_POSIXCHECK
 903 # undef unlockpt
 904 # if HAVE_RAW_DECL_UNLOCKPT
 905 _GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
 906                  "use gnulib module unlockpt for portability");
 907 # endif
 908 #endif
 909
 910 #if @GNULIB_UNSETENV@
 911 /* Remove the variable NAME from the environment.  */
 912 # if @REPLACE_UNSETENV@
 913 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 914 #   undef unsetenv
 915 #   define unsetenv rpl_unsetenv
 916 #  endif
 917 _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 918 _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
 919 # else
 920 #  if !@HAVE_DECL_UNSETENV@
 921 _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 922 #  endif
 923 _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
 924 # endif
 925 # if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
 926 _GL_CXXALIASWARN (unsetenv);
 927 # endif
 928 #elif defined GNULIB_POSIXCHECK
 929 # undef unsetenv
 930 # if HAVE_RAW_DECL_UNSETENV
 931 _GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
 932                  "use gnulib module unsetenv for portability");
 933 # endif
 934 #endif
 935
 936 /* Convert a wide character to a multibyte character.  */
 937 #if @GNULIB_WCTOMB@
 938 # if @REPLACE_WCTOMB@
 939 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 940 #   undef wctomb
 941 #   define wctomb rpl_wctomb
 942 #  endif
 943 _GL_FUNCDECL_RPL (wctomb, int, (char *s, wchar_t wc));
 944 _GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
 945 # else
 946 _GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
 947 # endif
 948 _GL_CXXALIASWARN (wctomb);
 949 #endif
 950
 951
 952 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 953 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 954 #endif