66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
|
/*
|
||
|
|
* This file is part of libgim.
|
||
|
|
*
|
||
|
|
* libgim 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.
|
||
|
|
*
|
||
|
|
* libgim 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 libgim. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
* Copyright 2011 Danny Robson <danny@blubinc.net>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __UTIL_FIXED_HPP
|
||
|
|
#define __UTIL_FIXED_HPP
|
||
|
|
|
||
|
|
#include "types.hpp"
|
||
|
|
|
||
|
|
#include <cstdint>
|
||
|
|
|
||
|
|
template <unsigned int INT, unsigned int FRAC>
|
||
|
|
class fixed {
|
||
|
|
public:
|
||
|
|
typedef typename bits_type<INT + FRAC>::uint combined_type;
|
||
|
|
typedef typename bits_type<INT + FRAC>::uint integral_type;
|
||
|
|
|
||
|
|
combined_type m_value;
|
||
|
|
|
||
|
|
public:
|
||
|
|
explicit fixed(double);
|
||
|
|
explicit fixed(float);
|
||
|
|
explicit fixed(integral_type);
|
||
|
|
|
||
|
|
double to_double (void) const;
|
||
|
|
float to_float (void) const;
|
||
|
|
integral_type to_integral (void) const;
|
||
|
|
|
||
|
|
fixed<INT,FRAC>& operator +=(const fixed<INT,FRAC>);
|
||
|
|
fixed<INT,FRAC>& operator -=(const fixed<INT,FRAC>);
|
||
|
|
fixed<INT,FRAC>& operator *=(const fixed<INT,FRAC>);
|
||
|
|
fixed<INT,FRAC>& operator /=(const fixed<INT,FRAC>);
|
||
|
|
|
||
|
|
fixed<INT,FRAC> operator +(const fixed<INT,FRAC>) const;
|
||
|
|
fixed<INT,FRAC> operator -(const fixed<INT,FRAC>) const;
|
||
|
|
fixed<INT,FRAC> operator *(const fixed<INT,FRAC>) const;
|
||
|
|
fixed<INT,FRAC> operator /(const fixed<INT,FRAC>) const;
|
||
|
|
|
||
|
|
fixed<INT,FRAC>& operator +=(integral_type);
|
||
|
|
fixed<INT,FRAC>& operator -=(integral_type);
|
||
|
|
fixed<INT,FRAC>& operator *=(integral_type);
|
||
|
|
fixed<INT,FRAC>& operator /=(integral_type);
|
||
|
|
|
||
|
|
fixed<INT,FRAC> operator +(integral_type) const;
|
||
|
|
fixed<INT,FRAC> operator -(integral_type) const;
|
||
|
|
fixed<INT,FRAC> operator *(integral_type) const;
|
||
|
|
fixed<INT,FRAC> operator /(integral_type) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // __UTIL_FIXED_HPP
|