Saf/Algo/Predicate.h

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/*
    This file is part of Simple Application Framework (Saf) library.
    Copyright (C) 2010 - 2012 Ondrej Danek <ondrej.danek@gmail.com>

    This library 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 3 of the License, or
    (at your option) any later version.

    Saf 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 Simple Application Framework library. If not, 
    see <http://www.gnu.org/licenses/>.
*/

#ifndef SAF_ALGO_PREDICATE_H
#define SAF_ALGO_PREDICATE_H

#include "Function.h"

namespace Saf
{
    namespace Algo
    {        
        namespace Predicate
        {
            // Unary predicates


            // Binary predicates

            template <class T>
            struct Equal
                : public BinaryFunction<T,T,bool>
            {                
                bool operator()(const T& v1, const T& v2) const
                {
                    return (v1 == v2);
                }
            };

            template <class T>
            struct NotEqual
                : public BinaryFunction<T,T,bool>
            {                
                bool operator()(const T& v1, const T& v2) const
                {
                    return (v1 != v2);
                }
            };

            template <class T>
            struct Less
                : public BinaryFunction<T,T,bool>
            {                
                bool operator()(const T& v1, const T& v2) const
                {
                    return (v1 < v2);
                }
            };

            template <class T>
            struct LessOrEqual
                : public BinaryFunction<T,T,bool>
            {                
                bool operator()(const T& v1, const T& v2) const
                {
                    return (v1 <= v2);
                }
            };

            template <class T>
            struct Greater
                : public BinaryFunction<T,T,bool>
            {                
                bool operator()(const T& v1, const T& v2) const
                {
                    return (v1 > v2);
                }
            };

            template <class T>
            struct GreaterOrEqual
                : public BinaryFunction<T,T,bool>
            {                
                bool operator()(const T& v1, const T& v2) const
                {
                    return (v1 >= v2);
                }
            };
        }
    }
}

#endif