libgetopt++/src/BoolOption.cc

   1 /*
   2  * Copyright (c) 2002 Robert Collins.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins <robertc@hotmail.com>
  13  *
  14  */
  15
  16 #include <getopt++/BoolOption.h>
  17
  18 BoolOption::BoolOption(bool const defaultvalue, char shortopt,
  19                        char const *longopt, string const &shorthelp,
  20                        OptionSet &owner) : _value (defaultvalue) ,
  21                        _ovalue (defaultvalue), _shortopt(shortopt),
  22                        _longopt (longopt), _shorthelp (shorthelp)
  23 {
  24   owner.Register (this);
  25 };
  26
  27 BoolOption::~ BoolOption () {};
  28
  29 string const
  30 BoolOption::shortOption () const
  31 {
  32   return string() + _shortopt;
  33 }
  34
  35 struct option
  36 BoolOption::longOption () const
  37 {
  38   struct option foo = {_longopt, no_argument, NULL, _shortopt};
  39   return foo;
  40 }
  41
  42 string const
  43 BoolOption::shortHelp () const
  44 {
  45   return _shorthelp;
  46 }
  47
  48 bool
  49 BoolOption::Process (char const *)
  50 {
  51   _value = !_ovalue;
  52 }
  53
  54 BoolOption::operator bool () const
  55 {
  56   return _value;
  57 }