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/*
** PJL C++ Library
** my_set.h
**
** Copyright (C) 1998 Paul J. Lucas
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef my_set_H
#define my_set_H
// standard
#include <set>
#include <string>
// local
#include "less.h"
namespace PJL {
//*****************************************************************************
//
// SYNOPSIS
//
template< class T > class my_set : public std::set< T >
//
// DESCRIPTION
//
// A my_set is-a set but with the addition of a contains() member
// function, one that returns a simpler bool result indicating whether a
// given element is in the set. (This is called a lot and I hate lots of
// typing.)
//
//*****************************************************************************
{
public:
bool contains( T const &s ) const { return find( s ) != this->end(); }
};
//*****************************************************************************
//
// SYNOPSIS
//
template<> class my_set< char const* > : public std::set< char const* >
//
// DESCRIPTION
//
// Specialize my_set for C-stle strings so as not to have a reference
// (implemented as a pointer) to a char const*.
//
//*****************************************************************************
{
public:
bool contains( char const *s ) const { return find( s ) != this->end(); }
};
typedef my_set< char const* > char_ptr_set;
typedef my_set< std::string > string_set;
} // namespace PJL
#endif /* my_set_H */
/* vim:set noet sw=8 ts=8: */
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