src/include/groff-getopt.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
   3      Written by Werner Lemberg (wl@gnu.org)
   4
   5 This file is part of groff.
   6
   7 groff is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with groff; see the file COPYING.  If not, write to the Free Software
  19 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
  20
  21 /*
  22    This file has to be included from within lib.h instead of getopt.h
  23    to avoid problems with picky C++ compilers.
  24 */
  25
  26 #ifndef _GROFF_GETOPT_H
  27 #define _GROFF_GETOPT_H
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 extern char *optarg;
  34 extern int optind;
  35 extern int opterr;
  36 extern int optopt;
  37
  38 struct option
  39 {
  40   const char *name;
  41   int has_arg;
  42   int *flag;
  43   int val;
  44 };
  45
  46 #define no_argument       0
  47 #define required_argument 1
  48 #define optional_argument 2
  49
  50 extern int getopt(int,                  // __argc
  51                   char *const *,        // __argv
  52                   const char *);        // __shortopts
  53 extern int getopt_long(int,                     // __argc
  54                        char *const *,           // __argv
  55                        const char *,            // __shortopts
  56                        const struct option *,   // __longopts
  57                        int *);                  // __longind
  58 extern int getopt_long_only(int,                        // __argc
  59                             char *const *,              // __argv
  60                             const char *,               // __shortopts
  61                             const struct option *,      // __longopts
  62                             int *);                     // __longind
  63
  64 #ifdef __cplusplus
  65 }
  66 #endif
  67
  68 #endif /* _GROFF_GETOPT_H */