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 #if @HAVE_INCLUDE_NEXT@
  23 # include_next <stdlib.h>
  24 #else
  25 # include @ABSOLUTE_STDLIB_H@
  26 #endif
  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 #if @HAVE_INCLUDE_NEXT@
  35 # include_next <stdlib.h>
  36 #else
  37 # include @ABSOLUTE_STDLIB_H@
  38 #endif
  39
  40 #ifndef _GL_STDLIB_H
  41 #define _GL_STDLIB_H
  42
  43
  44 /* The definition of GL_LINK_WARNING is copied here.  */
  45
  46
  47 /* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
  48 #ifndef EXIT_SUCCESS
  49 # define EXIT_SUCCESS 0
  50 #endif
  51 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
  52    with proper operation of xargs.  */
  53 #ifndef EXIT_FAILURE
  54 # define EXIT_FAILURE 1
  55 #elif EXIT_FAILURE != 1
  56 # undef EXIT_FAILURE
  57 # define EXIT_FAILURE 1
  58 #endif
  59
  60
  61 #ifdef __cplusplus
  62 extern "C" {
  63 #endif
  64
  65
  66 #if @GNULIB_GETSUBOPT@
  67 /* Assuming *OPTIONP is a comma separated list of elements of the form
  68    "token" or "token=value", getsubopt parses the first of these elements.
  69    If the first element refers to a "token" that is member of the given
  70    NULL-terminated array of tokens:
  71      - It replaces the comma with a NUL byte, updates *OPTIONP to point past
  72        the first option and the comma, sets *VALUEP to the value of the
  73        element (or NULL if it doesn't contain an "=" sign),
  74      - It returns the index of the "token" in the given array of tokens.
  75    Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
  76    For more details see the POSIX:2001 specification.
  77    http://www.opengroup.org/susv3xsh/getsubopt.html */
  78 # if !@HAVE_GETSUBOPT@
  79 extern int getsubopt (char **optionp, char *const *tokens, char **valuep);
  80 # endif
  81 #elif defined GNULIB_POSIXCHECK
  82 # undef getsubopt
  83 # define getsubopt(o,t,v) \
  84     (GL_LINK_WARNING ("getsubopt is unportable - " \
  85                       "use gnulib module getsubopt for portability"), \
  86      getsubopt (o, t, v))
  87 #endif
  88
  89
  90 #if @GNULIB_MKDTEMP@
  91 # if !@HAVE_MKDTEMP@
  92 /* Create a unique temporary directory from TEMPLATE.
  93    The last six characters of TEMPLATE must be "XXXXXX";
  94    they are replaced with a string that makes the directory name unique.
  95    Returns TEMPLATE, or a null pointer if it cannot get a unique name.
  96    The directory is created mode 700.  */
  97 extern char * mkdtemp (char * /*template*/);
  98 # endif
  99 #elif defined GNULIB_POSIXCHECK
 100 # undef mkdtemp
 101 # define mkdtemp(t) \
 102     (GL_LINK_WARNING ("mkdtemp is unportable - " \
 103                       "use gnulib module mkdtemp for portability"), \
 104      mkdtemp (t))
 105 #endif
 106
 107
 108 #if @GNULIB_MKSTEMP@
 109 # if @REPLACE_MKSTEMP@
 110 /* Create a unique temporary file from TEMPLATE.
 111    The last six characters of TEMPLATE must be "XXXXXX";
 112    they are replaced with a string that makes the file name unique.
 113    The file is then created, ensuring it didn't exist before.
 114    The file is created read-write (mask at least 0600 & ~umask), but it may be
 115    world-readable and world-writable (mask 0666 & ~umask), depending on the
 116    implementation.
 117    Returns the open file descriptor if successful, otherwise -1 and errno
 118    set.  */
 119 #  define mkstemp rpl_mkstemp
 120 extern int mkstemp (char * /*template*/);
 121 # else
 122 /* On MacOS X 10.3, only <unistd.h> declares mkstemp.  */
 123 #  include <unistd.h>
 124 # endif
 125 #elif defined GNULIB_POSIXCHECK
 126 # undef mkstemp
 127 # define mkstemp(t) \
 128     (GL_LINK_WARNING ("mkstemp is unportable - " \
 129                       "use gnulib module mkstemp for portability"), \
 130      mkstemp (t))
 131 #endif
 132
 133
 134 #ifdef __cplusplus
 135 }
 136 #endif
 137
 138 #endif /* _GL_STDLIB_H */
 139 #endif /* _GL_STDLIB_H */
 140 #endif