86 lines
2.9 KiB
C++
86 lines
2.9 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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#include <iostream>
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namespace util {
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template <unsigned I, unsigned E>
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class fixed {
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public:
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typedef typename bits_type<I+E>::uint uint_t;
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fixed (double);
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fixed (float);
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fixed (uint_t);
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double to_double (void) const;
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float to_float (void) const;
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uint_t to_integral (void) const;
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uint_t to_native (void) const;
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static fixed<I,E> from_native (uint_t);
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static uint_t to_integral (uint_t);
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fixed<I,E>& operator +=(const fixed<I,E>);
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fixed<I,E>& operator -=(const fixed<I,E>);
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fixed<I,E>& operator *=(const fixed<I,E>);
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fixed<I,E>& operator /=(const fixed<I,E>);
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fixed<I,E> operator +(const fixed<I,E>) const;
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fixed<I,E> operator -(const fixed<I,E>) const;
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fixed<I,E> operator *(const fixed<I,E>) const;
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fixed<I,E> operator /(const fixed<I,E>) const;
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fixed<I,E>& operator +=(uint_t);
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fixed<I,E>& operator -=(uint_t);
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fixed<I,E>& operator *=(uint_t);
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fixed<I,E>& operator /=(uint_t);
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fixed<I,E> operator +(uint_t) const;
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fixed<I,E> operator -(uint_t) const;
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fixed<I,E> operator *(uint_t) const;
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fixed<I,E> operator /(uint_t) const;
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private:
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uint_t m_value;
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};
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template <unsigned I, unsigned E> bool operator== (util::fixed<I,E>, util::fixed<I,E>);
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template <unsigned I, unsigned E> bool operator!= (util::fixed<I,E>, util::fixed<I,E>);
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template <unsigned I, unsigned E> bool operator< (util::fixed<I,E>, util::fixed<I,E>);
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template <unsigned I, unsigned E> bool operator<= (util::fixed<I,E>, util::fixed<I,E>);
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template <unsigned I, unsigned E> bool operator> (util::fixed<I,E>, util::fixed<I,E>);
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template <unsigned I, unsigned E> bool operator>= (util::fixed<I,E>, util::fixed<I,E>);
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template <unsigned I, unsigned E>
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std::ostream& operator<< (std::ostream&, fixed<I,E>);
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}
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#endif // __UTIL_FIXED_HPP
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