lib/getopt.in.h

   1 /* Declarations for getopt.
   2    Copyright (C) 1989-2023 Free Software Foundation, Inc.
   3    This file is part of gnulib.
   4    Unlike most of the getopt implementation, it is NOT shared
   5    with the GNU C Library, which supplies a different version of
   6    this file.
   7
   8    This file is free software: you can redistribute it and/or modify
   9    it under the terms of the GNU Lesser General Public License as
  10    published by the Free Software Foundation; either version 2.1 of the
  11    License, or (at your option) any later version.
  12
  13    This file is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU Lesser General Public License for more details.
  17
  18    You should have received a copy of the GNU Lesser General Public License
  19    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  20
  21 #ifndef _GETOPT_H
  22
  23 #define _GETOPT_H 1
  24
  25 /* Standalone applications should #define __GETOPT_PREFIX to an
  26    identifier that prefixes the external functions and variables
  27    defined in this header.  When this happens, include the
  28    headers that might declare getopt so that they will not cause
  29    confusion if included after this file.  Then systematically rename
  30    identifiers so that they do not collide with the system functions
  31    and variables.  Renaming avoids problems with some compilers and
  32    linkers.  */
  33 #if defined __GETOPT_PREFIX
  34 # include <stdlib.h>
  35 # include <stdio.h>
  36
  37 # ifndef _MSC_VER
  38 #  include <unistd.h>
  39 # endif
  40 #endif
  41
  42 /* From Gnulib's lib/arg-nonnull.h: */
  43 /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
  44    that the values passed as arguments n, ..., m must be non-NULL pointers.
  45    n = 1 stands for the first argument, n = 2 for the second argument etc.  */
  46 #ifndef _GL_ARG_NONNULL
  47 # if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
  48 #  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
  49 # else
  50 #  define _GL_ARG_NONNULL(params)
  51 # endif
  52 #endif
  53
  54 #include <getopt-cdefs.h>
  55 #include <getopt-pfx-core.h>
  56 #include <getopt-pfx-ext.h>
  57
  58 #endif /* _GETOPT_H */