getopt/getopt.h

   1 /* Declarations for getopt.
   2    Copyright (C) 1989-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Unlike the bulk of the getopt implementation, this file is NOT part
   5    of gnulib; gnulib also has a getopt.h but it is different.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef _GETOPT_H
  22 #define _GETOPT_H 1
  23
  24 #ifndef _GETOPT_STANDALONE
  25 #include <features.h>
  26 #endif
  27
  28 // From <sys/cdefs.h>:
  29 #ifndef __BEGIN_DECLS
  30 # ifdef __cplusplus
  31 #  define __BEGIN_DECLS extern "C" {
  32 #  define __END_DECLS   }
  33 # else
  34 #  define __BEGIN_DECLS
  35 #  define __END_DECLS
  36 # endif
  37 #endif
  38 #ifndef __THROW
  39 # ifdef __cplusplus
  40 #  define __THROW throw()
  41 # elif defined(__GNUC__)
  42 #  define __THROW __attribute__ ((__nothrow__))
  43 # else
  44 #  define __THROW
  45 # endif
  46 #endif
  47 #ifndef __nonnull
  48 # ifdef __GNUC__
  49 #  define __nonnull(x) __attribute__ ((__nonnull__ x))
  50 # else
  51 #  define __nonnull(x)
  52 # endif
  53 #endif
  54
  55 /* The type of the 'argv' argument to getopt_long and getopt_long_only
  56    is properly 'char **', since both functions may write to the array
  57    (in order to move all the options to the beginning).  However, for
  58    compatibility with old versions of LSB, glibc has to use 'char *const *'
  59    instead.  */
  60 #ifndef __getopt_argv_const
  61 # define __getopt_argv_const const
  62 #endif
  63
  64 #include <bits/getopt_core.h>
  65 #include <bits/getopt_ext.h>
  66
  67 #endif /* getopt.h */