68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2011, 2014 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_FIXED_HPP
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#define __UTIL_FIXED_HPP
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#include "types/bits.hpp"
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#include <cstdint>
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namespace util {
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template <unsigned int INT, unsigned int FRAC>
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class fixed {
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public:
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typedef typename bits_type<INT + FRAC>::uint combined_type;
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typedef typename bits_type<INT + FRAC>::uint integral_type;
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combined_type m_value;
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public:
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explicit fixed(double);
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explicit fixed(float);
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explicit fixed(integral_type);
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double to_double (void) const;
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float to_float (void) const;
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integral_type to_integral (void) const;
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fixed<INT, FRAC>& operator +=(const fixed<INT, FRAC>);
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fixed<INT, FRAC>& operator -=(const fixed<INT, FRAC>);
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fixed<INT, FRAC>& operator *=(const fixed<INT, FRAC>);
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fixed<INT, FRAC>& operator /=(const fixed<INT, FRAC>);
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fixed<INT, FRAC> operator +(const fixed<INT, FRAC>) const;
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fixed<INT, FRAC> operator -(const fixed<INT, FRAC>) const;
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fixed<INT, FRAC> operator *(const fixed<INT, FRAC>) const;
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fixed<INT, FRAC> operator /(const fixed<INT, FRAC>) const;
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fixed<INT, FRAC>& operator +=(integral_type);
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fixed<INT, FRAC>& operator -=(integral_type);
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fixed<INT, FRAC>& operator *=(integral_type);
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fixed<INT, FRAC>& operator /=(integral_type);
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fixed<INT, FRAC> operator +(integral_type) const;
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fixed<INT, FRAC> operator -(integral_type) const;
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fixed<INT, FRAC> operator *(integral_type) const;
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fixed<INT, FRAC> operator /(integral_type) const;
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};
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}
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#endif // __UTIL_FIXED_HPP
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