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 #if @GNULIB_QSORT_R@
 524 # if @REPLACE_QSORT_R@
 525 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 526 #   undef qsort_r
 527 #   define qsort_r rpl_qsort_r
 528 #  endif
 529 _GL_FUNCDECL_RPL (qsort_r, void, (void *base, size_t nmemb, size_t size,
 530                                   int (*compare) (void const *, void const *,
 531                                                   void *),
 532                                   void *arg) _GL_ARG_NONNULL ((1, 4)));
 533 _GL_CXXALIAS_RPL (qsort_r, void, (void *base, size_t nmemb, size_t size,
 534                                   int (*compare) (void const *, void const *,
 535                                                   void *),
 536                                   void *arg));
 537 # else
 538 _GL_CXXALIAS_SYS (qsort_r, void, (void *base, size_t nmemb, size_t size,
 539                                   int (*compare) (void const *, void const *,
 540                                                   void *),
 541                                   void *arg));
 542 # endif
 543 _GL_CXXALIASWARN (qsort_r);
 544 #endif
 545
 546
 547 #if @GNULIB_RANDOM_R@
 548 # if !@HAVE_RANDOM_R@
 549 #  ifndef RAND_MAX
 550 #   define RAND_MAX 2147483647
 551 #  endif
 552 # endif
 553 #endif
 554
 555
 556 #if @GNULIB_RANDOM@
 557 # if !@HAVE_RANDOM@
 558 _GL_FUNCDECL_SYS (random, long, (void));
 559 # endif
 560 _GL_CXXALIAS_SYS (random, long, (void));
 561 _GL_CXXALIASWARN (random);
 562 #elif defined GNULIB_POSIXCHECK
 563 # undef random
 564 # if HAVE_RAW_DECL_RANDOM
 565 _GL_WARN_ON_USE (random, "random is unportable - "
 566                  "use gnulib module random for portability");
 567 # endif
 568 #endif
 569
 570 #if @GNULIB_RANDOM@
 571 # if !@HAVE_RANDOM@
 572 _GL_FUNCDECL_SYS (srandom, void, (unsigned int seed));
 573 # endif
 574 _GL_CXXALIAS_SYS (srandom, void, (unsigned int seed));
 575 _GL_CXXALIASWARN (srandom);
 576 #elif defined GNULIB_POSIXCHECK
 577 # undef srandom
 578 # if HAVE_RAW_DECL_SRANDOM
 579 _GL_WARN_ON_USE (srandom, "srandom is unportable - "
 580                  "use gnulib module random for portability");
 581 # endif
 582 #endif
 583
 584 #if @GNULIB_RANDOM@
 585 # if !@HAVE_RANDOM@
 586 _GL_FUNCDECL_SYS (initstate, char *,
 587                   (unsigned int seed, char *buf, size_t buf_size)
 588                   _GL_ARG_NONNULL ((2)));
 589 # endif
 590 _GL_CXXALIAS_SYS (initstate, char *,
 591                   (unsigned int seed, char *buf, size_t buf_size));
 592 _GL_CXXALIASWARN (initstate);
 593 #elif defined GNULIB_POSIXCHECK
 594 # undef initstate
 595 # if HAVE_RAW_DECL_INITSTATE_R
 596 _GL_WARN_ON_USE (initstate, "initstate is unportable - "
 597                  "use gnulib module random for portability");
 598 # endif
 599 #endif
 600
 601 #if @GNULIB_RANDOM@
 602 # if !@HAVE_RANDOM@
 603 _GL_FUNCDECL_SYS (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
 604 # endif
 605 _GL_CXXALIAS_SYS (setstate, char *, (char *arg_state));
 606 _GL_CXXALIASWARN (setstate);
 607 #elif defined GNULIB_POSIXCHECK
 608 # undef setstate
 609 # if HAVE_RAW_DECL_SETSTATE_R
 610 _GL_WARN_ON_USE (setstate, "setstate is unportable - "
 611                  "use gnulib module random for portability");
 612 # endif
 613 #endif
 614
 615
 616 #if @GNULIB_RANDOM_R@
 617 # if @REPLACE_RANDOM_R@
 618 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 619 #   undef random_r
 620 #   define random_r rpl_random_r
 621 #  endif
 622 _GL_FUNCDECL_RPL (random_r, int, (struct random_data *buf, int32_t *result)
 623                                  _GL_ARG_NONNULL ((1, 2)));
 624 _GL_CXXALIAS_RPL (random_r, int, (struct random_data *buf, int32_t *result));
 625 # else
 626 #  if !@HAVE_RANDOM_R@
 627 _GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
 628                                  _GL_ARG_NONNULL ((1, 2)));
 629 #  endif
 630 _GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
 631 # endif
 632 _GL_CXXALIASWARN (random_r);
 633 #elif defined GNULIB_POSIXCHECK
 634 # undef random_r
 635 # if HAVE_RAW_DECL_RANDOM_R
 636 _GL_WARN_ON_USE (random_r, "random_r is unportable - "
 637                  "use gnulib module random_r for portability");
 638 # endif
 639 #endif
 640
 641 #if @GNULIB_RANDOM_R@
 642 # if @REPLACE_RANDOM_R@
 643 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 644 #   undef srandom_r
 645 #   define srandom_r rpl_srandom_r
 646 #  endif
 647 _GL_FUNCDECL_RPL (srandom_r, int,
 648                   (unsigned int seed, struct random_data *rand_state)
 649                   _GL_ARG_NONNULL ((2)));
 650 _GL_CXXALIAS_RPL (srandom_r, int,
 651                   (unsigned int seed, struct random_data *rand_state));
 652 # else
 653 #  if !@HAVE_RANDOM_R@
 654 _GL_FUNCDECL_SYS (srandom_r, int,
 655                   (unsigned int seed, struct random_data *rand_state)
 656                   _GL_ARG_NONNULL ((2)));
 657 #  endif
 658 _GL_CXXALIAS_SYS (srandom_r, int,
 659                   (unsigned int seed, struct random_data *rand_state));
 660 # endif
 661 _GL_CXXALIASWARN (srandom_r);
 662 #elif defined GNULIB_POSIXCHECK
 663 # undef srandom_r
 664 # if HAVE_RAW_DECL_SRANDOM_R
 665 _GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
 666                  "use gnulib module random_r for portability");
 667 # endif
 668 #endif
 669
 670 #if @GNULIB_RANDOM_R@
 671 # if @REPLACE_RANDOM_R@
 672 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 673 #   undef initstate_r
 674 #   define initstate_r rpl_initstate_r
 675 #  endif
 676 _GL_FUNCDECL_RPL (initstate_r, int,
 677                   (unsigned int seed, char *buf, size_t buf_size,
 678                    struct random_data *rand_state)
 679                   _GL_ARG_NONNULL ((2, 4)));
 680 _GL_CXXALIAS_RPL (initstate_r, int,
 681                   (unsigned int seed, char *buf, size_t buf_size,
 682                    struct random_data *rand_state));
 683 # else
 684 #  if !@HAVE_RANDOM_R@
 685 _GL_FUNCDECL_SYS (initstate_r, int,
 686                   (unsigned int seed, char *buf, size_t buf_size,
 687                    struct random_data *rand_state)
 688                   _GL_ARG_NONNULL ((2, 4)));
 689 #  endif
 690 _GL_CXXALIAS_SYS (initstate_r, int,
 691                   (unsigned int seed, char *buf, size_t buf_size,
 692                    struct random_data *rand_state));
 693 # endif
 694 _GL_CXXALIASWARN (initstate_r);
 695 #elif defined GNULIB_POSIXCHECK
 696 # undef initstate_r
 697 # if HAVE_RAW_DECL_INITSTATE_R
 698 _GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
 699                  "use gnulib module random_r for portability");
 700 # endif
 701 #endif
 702
 703 #if @GNULIB_RANDOM_R@
 704 # if @REPLACE_RANDOM_R@
 705 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 706 #   undef setstate_r
 707 #   define setstate_r rpl_setstate_r
 708 #  endif
 709 _GL_FUNCDECL_RPL (setstate_r, int,
 710                   (char *arg_state, struct random_data *rand_state)
 711                   _GL_ARG_NONNULL ((1, 2)));
 712 _GL_CXXALIAS_RPL (setstate_r, int,
 713                   (char *arg_state, struct random_data *rand_state));
 714 # else
 715 #  if !@HAVE_RANDOM_R@
 716 _GL_FUNCDECL_SYS (setstate_r, int,
 717                   (char *arg_state, struct random_data *rand_state)
 718                   _GL_ARG_NONNULL ((1, 2)));
 719 #  endif
 720 _GL_CXXALIAS_SYS (setstate_r, int,
 721                   (char *arg_state, struct random_data *rand_state));
 722 # endif
 723 _GL_CXXALIASWARN (setstate_r);
 724 #elif defined GNULIB_POSIXCHECK
 725 # undef setstate_r
 726 # if HAVE_RAW_DECL_SETSTATE_R
 727 _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 728                  "use gnulib module random_r for portability");
 729 # endif
 730 #endif
 731
 732
 733 #if @GNULIB_REALLOC_POSIX@
 734 # if @REPLACE_REALLOC@
 735 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
 736         || _GL_USE_STDLIB_ALLOC)
 737 #   undef realloc
 738 #   define realloc rpl_realloc
 739 #  endif
 740 _GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
 741 _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 742 # else
 743 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
 744 # endif
 745 _GL_CXXALIASWARN (realloc);
 746 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 747 # undef realloc
 748 /* Assume realloc is always declared.  */
 749 _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
 750                  "use gnulib module realloc-posix for portability");
 751 #endif
 752
 753 #if @GNULIB_REALPATH@
 754 # if @REPLACE_REALPATH@
 755 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 756 #   define realpath rpl_realpath
 757 #  endif
 758 _GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
 759                                     _GL_ARG_NONNULL ((1)));
 760 _GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
 761 # else
 762 #  if !@HAVE_REALPATH@
 763 _GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
 764                                     _GL_ARG_NONNULL ((1)));
 765 #  endif
 766 _GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
 767 # endif
 768 _GL_CXXALIASWARN (realpath);
 769 #elif defined GNULIB_POSIXCHECK
 770 # undef realpath
 771 # if HAVE_RAW_DECL_REALPATH
 772 _GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
 773                  "canonicalize or canonicalize-lgpl for portability");
 774 # endif
 775 #endif
 776
 777 #if @GNULIB_RPMATCH@
 778 /* Test a user response to a question.
 779    Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear.  */
 780 # if !@HAVE_RPMATCH@
 781 _GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
 782 # endif
 783 _GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
 784 _GL_CXXALIASWARN (rpmatch);
 785 #elif defined GNULIB_POSIXCHECK
 786 # undef rpmatch
 787 # if HAVE_RAW_DECL_RPMATCH
 788 _GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
 789                  "use gnulib module rpmatch for portability");
 790 # endif
 791 #endif
 792
 793 #if @GNULIB_SECURE_GETENV@
 794 /* Look up NAME in the environment, returning 0 in insecure situations.  */
 795 # if !@HAVE_SECURE_GETENV@
 796 _GL_FUNCDECL_SYS (secure_getenv, char *,
 797                   (char const *name) _GL_ARG_NONNULL ((1)));
 798 # endif
 799 _GL_CXXALIAS_SYS (secure_getenv, char *, (char const *name));
 800 _GL_CXXALIASWARN (secure_getenv);
 801 #elif defined GNULIB_POSIXCHECK
 802 # undef secure_getenv
 803 # if HAVE_RAW_DECL_SECURE_GETENV
 804 _GL_WARN_ON_USE (secure_getenv, "secure_getenv is unportable - "
 805                  "use gnulib module secure_getenv for portability");
 806 # endif
 807 #endif
 808
 809 #if @GNULIB_SETENV@
 810 /* Set NAME to VALUE in the environment.
 811    If REPLACE is nonzero, overwrite an existing value.  */
 812 # if @REPLACE_SETENV@
 813 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 814 #   undef setenv
 815 #   define setenv rpl_setenv
 816 #  endif
 817 _GL_FUNCDECL_RPL (setenv, int,
 818                   (const char *name, const char *value, int replace)
 819                   _GL_ARG_NONNULL ((1)));
 820 _GL_CXXALIAS_RPL (setenv, int,
 821                   (const char *name, const char *value, int replace));
 822 # else
 823 #  if !@HAVE_DECL_SETENV@
 824 _GL_FUNCDECL_SYS (setenv, int,
 825                   (const char *name, const char *value, int replace)
 826                   _GL_ARG_NONNULL ((1)));
 827 #  endif
 828 _GL_CXXALIAS_SYS (setenv, int,
 829                   (const char *name, const char *value, int replace));
 830 # endif
 831 # if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
 832 _GL_CXXALIASWARN (setenv);
 833 # endif
 834 #elif defined GNULIB_POSIXCHECK
 835 # undef setenv
 836 # if HAVE_RAW_DECL_SETENV
 837 _GL_WARN_ON_USE (setenv, "setenv is unportable - "
 838                  "use gnulib module setenv for portability");
 839 # endif
 840 #endif
 841
 842 #if @GNULIB_STRTOD@
 843  /* Parse a double from STRING, updating ENDP if appropriate.  */
 844 # if @REPLACE_STRTOD@
 845 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 846 #   define strtod rpl_strtod
 847 #  endif
 848 _GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
 849                                   _GL_ARG_NONNULL ((1)));
 850 _GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
 851 # else
 852 #  if !@HAVE_STRTOD@
 853 _GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
 854                                   _GL_ARG_NONNULL ((1)));
 855 #  endif
 856 _GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
 857 # endif
 858 _GL_CXXALIASWARN (strtod);
 859 #elif defined GNULIB_POSIXCHECK
 860 # undef strtod
 861 # if HAVE_RAW_DECL_STRTOD
 862 _GL_WARN_ON_USE (strtod, "strtod is unportable - "
 863                  "use gnulib module strtod for portability");
 864 # endif
 865 #endif
 866
 867 #if @GNULIB_STRTOLL@
 868 /* Parse a signed integer whose textual representation starts at STRING.
 869    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
 870    it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
 871    "0x").
 872    If ENDPTR is not NULL, the address of the first byte after the integer is
 873    stored in *ENDPTR.
 874    Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
 875    to ERANGE.  */
 876 # if !@HAVE_STRTOLL@
 877 _GL_FUNCDECL_SYS (strtoll, long long,
 878                   (const char *string, char **endptr, int base)
 879                   _GL_ARG_NONNULL ((1)));
 880 # endif
 881 _GL_CXXALIAS_SYS (strtoll, long long,
 882                   (const char *string, char **endptr, int base));
 883 _GL_CXXALIASWARN (strtoll);
 884 #elif defined GNULIB_POSIXCHECK
 885 # undef strtoll
 886 # if HAVE_RAW_DECL_STRTOLL
 887 _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
 888                  "use gnulib module strtoll for portability");
 889 # endif
 890 #endif
 891
 892 #if @GNULIB_STRTOULL@
 893 /* Parse an unsigned integer whose textual representation starts at STRING.
 894    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
 895    it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
 896    "0x").
 897    If ENDPTR is not NULL, the address of the first byte after the integer is
 898    stored in *ENDPTR.
 899    Upon overflow, the return value is ULLONG_MAX, and errno is set to
 900    ERANGE.  */
 901 # if !@HAVE_STRTOULL@
 902 _GL_FUNCDECL_SYS (strtoull, unsigned long long,
 903                   (const char *string, char **endptr, int base)
 904                   _GL_ARG_NONNULL ((1)));
 905 # endif
 906 _GL_CXXALIAS_SYS (strtoull, unsigned long long,
 907                   (const char *string, char **endptr, int base));
 908 _GL_CXXALIASWARN (strtoull);
 909 #elif defined GNULIB_POSIXCHECK
 910 # undef strtoull
 911 # if HAVE_RAW_DECL_STRTOULL
 912 _GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
 913                  "use gnulib module strtoull for portability");
 914 # endif
 915 #endif
 916
 917 #if @GNULIB_UNLOCKPT@
 918 /* Unlock the slave side of the pseudo-terminal whose master side is specified
 919    by FD, so that it can be opened.  */
 920 # if !@HAVE_UNLOCKPT@
 921 _GL_FUNCDECL_SYS (unlockpt, int, (int fd));
 922 # endif
 923 _GL_CXXALIAS_SYS (unlockpt, int, (int fd));
 924 _GL_CXXALIASWARN (unlockpt);
 925 #elif defined GNULIB_POSIXCHECK
 926 # undef unlockpt
 927 # if HAVE_RAW_DECL_UNLOCKPT
 928 _GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
 929                  "use gnulib module unlockpt for portability");
 930 # endif
 931 #endif
 932
 933 #if @GNULIB_UNSETENV@
 934 /* Remove the variable NAME from the environment.  */
 935 # if @REPLACE_UNSETENV@
 936 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 937 #   undef unsetenv
 938 #   define unsetenv rpl_unsetenv
 939 #  endif
 940 _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 941 _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
 942 # else
 943 #  if !@HAVE_DECL_UNSETENV@
 944 _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 945 #  endif
 946 _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
 947 # endif
 948 # if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
 949 _GL_CXXALIASWARN (unsetenv);
 950 # endif
 951 #elif defined GNULIB_POSIXCHECK
 952 # undef unsetenv
 953 # if HAVE_RAW_DECL_UNSETENV
 954 _GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
 955                  "use gnulib module unsetenv for portability");
 956 # endif
 957 #endif
 958
 959 /* Convert a wide character to a multibyte character.  */
 960 #if @GNULIB_WCTOMB@
 961 # if @REPLACE_WCTOMB@
 962 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 963 #   undef wctomb
 964 #   define wctomb rpl_wctomb
 965 #  endif
 966 _GL_FUNCDECL_RPL (wctomb, int, (char *s, wchar_t wc));
 967 _GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
 968 # else
 969 _GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
 970 # endif
 971 _GL_CXXALIASWARN (wctomb);
 972 #endif
 973
 974
 975 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 976 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 977 #endif