integer.hpp

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// This file is a part of NiHu, a C++ BEM template library.
//
// Copyright (C) 2012-2014  Peter Fiala <fiala@hit.bme.hu>
// Copyright (C) 2012-2014  Peter Rucz <rucz@hit.bme.hu>
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
 
//
// Copyright (C) 2012-2014  Peter Fiala <fiala@hit.bme.hu>
// Copyright (C) 2012-2014  Peter Rucz <rucz@hit.bme.hu>
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
 
#ifndef INTEGER_HPP_INCLUDED
#define INTEGER_HPP_INCLUDED
 
#include "operator.hpp"
#include "relation.hpp"
 
namespace tmp
{
    template <class T, T N>
    struct integer : std::integral_constant<T, N>
    {
        typedef integer type;
        static T const next = N+1;
        static T const prev = N-1;
    };
 
    template <class T, T N>
    struct next<integer<T, N> > : integer<T, integer<T, N>::next> {};
 
    template <class T, T N>
    struct prev<integer<T, N> > : integer<T, integer<T, N>::prev> {};
 
    template <class T, T N, T M>
    struct plus<integer<T, N>, integer<T, M> > : integer<T, N+M> {};
 
    template <class T, T N, T M>
    struct minus<integer<T, N>, integer<T, M> > : integer<T, N-M> {};
 
    template <class T, T N, T M>
    struct mul<integer<T, N>, integer<T, M> > : integer<T, N*M> {};
 
    template <class T, T N, T M>
    struct less<integer<T, N>, integer<T, M> > : std::integral_constant<bool, (N<M) > {};
 
    template <class T, T N, T M>
    struct greater<integer<T, N>, integer<T, M> > : std::integral_constant<bool, (N>M) > {};
}
 
#endif /* INTEGER_HPP_INCLUDED */