93 lines
3.3 KiB
C++
93 lines
3.3 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 <typename T, unsigned I, unsigned E>
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class fixed {
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public:
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typedef typename std::conditional<
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std::is_signed<T>::value,
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typename bits_type<I+E>::sint,
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typename bits_type<I+E>::uint
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>::type native_t;
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typedef native_t integer_t;
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fixed (double);
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fixed (float);
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fixed (native_t);
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double to_double (void) const;
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float to_float (void) const;
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integer_t to_integer (void) const;
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native_t to_native (void) const;
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static fixed<T,I,E> from_native (native_t);
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static integer_t to_integer (native_t);
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fixed<T,I,E>& operator +=(const fixed<T,I,E>);
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fixed<T,I,E>& operator -=(const fixed<T,I,E>);
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fixed<T,I,E>& operator *=(const fixed<T,I,E>);
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fixed<T,I,E>& operator /=(const fixed<T,I,E>);
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fixed<T,I,E> operator +(const fixed<T,I,E>) const;
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fixed<T,I,E> operator -(const fixed<T,I,E>) const;
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fixed<T,I,E> operator *(const fixed<T,I,E>) const;
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fixed<T,I,E> operator /(const fixed<T,I,E>) const;
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fixed<T,I,E>& operator +=(integer_t);
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fixed<T,I,E>& operator -=(integer_t);
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fixed<T,I,E>& operator *=(integer_t);
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fixed<T,I,E>& operator /=(integer_t);
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fixed<T,I,E> operator +(integer_t) const;
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fixed<T,I,E> operator -(integer_t) const;
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fixed<T,I,E> operator *(integer_t) const;
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fixed<T,I,E> operator /(integer_t) const;
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private:
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fixed () = default;
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native_t m_value;
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};
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template <typename T, unsigned I, unsigned E> bool operator== (util::fixed<T,I,E>, util::fixed<T,I,E>);
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template <typename T, unsigned I, unsigned E> bool operator!= (util::fixed<T,I,E>, util::fixed<T,I,E>);
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template <typename T, unsigned I, unsigned E> bool operator< (util::fixed<T,I,E>, util::fixed<T,I,E>);
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template <typename T, unsigned I, unsigned E> bool operator<= (util::fixed<T,I,E>, util::fixed<T,I,E>);
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template <typename T, unsigned I, unsigned E> bool operator> (util::fixed<T,I,E>, util::fixed<T,I,E>);
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template <typename T, unsigned I, unsigned E> bool operator>= (util::fixed<T,I,E>, util::fixed<T,I,E>);
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template <typename T, unsigned I, unsigned E>
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std::ostream& operator<< (std::ostream&, fixed<T,I,E>);
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}
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#endif // __UTIL_FIXED_HPP
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