gl/stdlib_.h

   1 /* A GNU-like <stdlib.h>.
   2
   3    Copyright (C) 1995, 2001-2002, 2006-2007 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 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU 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, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #if defined __need_malloc_and_calloc
  20 /* Special invocation convention inside glibc header files.  */
  21
  22 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  23
  24 #else
  25 /* Normal invocation convention.  */
  26
  27 #ifndef _GL_STDLIB_H
  28
  29 /* The include_next requires a split double-inclusion guard.  */
  30 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  31
  32 #ifndef _GL_STDLIB_H
  33 #define _GL_STDLIB_H
  34
  35
  36 /* The definition of GL_LINK_WARNING is copied here.  */
  37
  38
  39 /* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
  40 #ifndef EXIT_SUCCESS
  41 # define EXIT_SUCCESS 0
  42 #endif
  43 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
  44    with proper operation of xargs.  */
  45 #ifndef EXIT_FAILURE
  46 # define EXIT_FAILURE 1
  47 #elif EXIT_FAILURE != 1
  48 # undef EXIT_FAILURE
  49 # define EXIT_FAILURE 1
  50 #endif
  51
  52
  53 #ifdef __cplusplus
  54 extern "C" {
  55 #endif
  56
  57
  58 #if @GNULIB_GETSUBOPT@
  59 /* Assuming *OPTIONP is a comma separated list of elements of the form
  60    "token" or "token=value", getsubopt parses the first of these elements.
  61    If the first element refers to a "token" that is member of the given
  62    NULL-terminated array of tokens:
  63      - It replaces the comma with a NUL byte, updates *OPTIONP to point past
  64        the first option and the comma, sets *VALUEP to the value of the
  65        element (or NULL if it doesn't contain an "=" sign),
  66      - It returns the index of the "token" in the given array of tokens.
  67    Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
  68    For more details see the POSIX:2001 specification.
  69    http://www.opengroup.org/susv3xsh/getsubopt.html */
  70 # if !@HAVE_GETSUBOPT@
  71 extern int getsubopt (char **optionp, char *const *tokens, char **valuep);
  72 # endif
  73 #elif defined GNULIB_POSIXCHECK
  74 # undef getsubopt
  75 # define getsubopt(o,t,v) \
  76     (GL_LINK_WARNING ("getsubopt is unportable - " \
  77                       "use gnulib module getsubopt for portability"), \
  78      getsubopt (o, t, v))
  79 #endif
  80
  81
  82 #if @GNULIB_MKDTEMP@
  83 # if !@HAVE_MKDTEMP@
  84 /* Create a unique temporary directory from TEMPLATE.
  85    The last six characters of TEMPLATE must be "XXXXXX";
  86    they are replaced with a string that makes the directory name unique.
  87    Returns TEMPLATE, or a null pointer if it cannot get a unique name.
  88    The directory is created mode 700.  */
  89 extern char * mkdtemp (char * /*template*/);
  90 # endif
  91 #elif defined GNULIB_POSIXCHECK
  92 # undef mkdtemp
  93 # define mkdtemp(t) \
  94     (GL_LINK_WARNING ("mkdtemp is unportable - " \
  95                       "use gnulib module mkdtemp for portability"), \
  96      mkdtemp (t))
  97 #endif
  98
  99
 100 #if @GNULIB_MKSTEMP@
 101 # if @REPLACE_MKSTEMP@
 102 /* Create a unique temporary file from TEMPLATE.
 103    The last six characters of TEMPLATE must be "XXXXXX";
 104    they are replaced with a string that makes the file name unique.
 105    The file is then created, ensuring it didn't exist before.
 106    The file is created read-write (mask at least 0600 & ~umask), but it may be
 107    world-readable and world-writable (mask 0666 & ~umask), depending on the
 108    implementation.
 109    Returns the open file descriptor if successful, otherwise -1 and errno
 110    set.  */
 111 #  define mkstemp rpl_mkstemp
 112 extern int mkstemp (char * /*template*/);
 113 # else
 114 /* On MacOS X 10.3, only <unistd.h> declares mkstemp.  */
 115 #  include <unistd.h>
 116 # endif
 117 #elif defined GNULIB_POSIXCHECK
 118 # undef mkstemp
 119 # define mkstemp(t) \
 120     (GL_LINK_WARNING ("mkstemp is unportable - " \
 121                       "use gnulib module mkstemp for portability"), \
 122      mkstemp (t))
 123 #endif
 124
 125
 126 #ifdef __cplusplus
 127 }
 128 #endif
 129
 130 #endif /* _GL_STDLIB_H */
 131 #endif /* _GL_STDLIB_H */
 132 #endif