lib/getopt.in.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 /* Declarations for getopt.
   4    Copyright (C) 1989-2023 Free Software Foundation, Inc.
   5    This file is part of gnulib.
   6    Unlike most of the getopt implementation, it is NOT shared
   7    with the GNU C Library, which supplies a different version of
   8    this file.
   9
  10    This file is free software: you can redistribute it and/or modify
  11    it under the terms of the GNU Lesser General Public License as
  12    published by the Free Software Foundation; either version 2.1 of the
  13    License, or (at your option) any later version.
  14
  15    This file is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU Lesser General Public License for more details.
  19
  20    You should have received a copy of the GNU Lesser General Public License
  21    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  22
  23 #ifndef _GETOPT_H
  24
  25 #define _GETOPT_H 1
  26
  27 /* Standalone applications should #define __GETOPT_PREFIX to an
  28    identifier that prefixes the external functions and variables
  29    defined in this header.  When this happens, include the
  30    headers that might declare getopt so that they will not cause
  31    confusion if included after this file.  Then systematically rename
  32    identifiers so that they do not collide with the system functions
  33    and variables.  Renaming avoids problems with some compilers and
  34    linkers.  */
  35 #if defined __GETOPT_PREFIX
  36 # include <stdlib.h>
  37 # include <stdio.h>
  38
  39 # ifndef _MSC_VER
  40 #  include <unistd.h>
  41 # endif
  42 #endif
  43
  44 /* From Gnulib's lib/arg-nonnull.h: */
  45 /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
  46    that the values passed as arguments n, ..., m must be non-NULL pointers.
  47    n = 1 stands for the first argument, n = 2 for the second argument etc.  */
  48 #ifndef _GL_ARG_NONNULL
  49 # if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
  50 #  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
  51 # else
  52 #  define _GL_ARG_NONNULL(params)
  53 # endif
  54 #endif
  55
  56 #include <getopt-cdefs.h>
  57 #include <getopt-pfx-core.h>
  58 #include <getopt-pfx-ext.h>
  59
  60 #endif /* _GETOPT_H */