mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-24 02:36:27 +00:00
111 lines
3.4 KiB
C++
111 lines
3.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* 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 2
|
|
* 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, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef COMMON_RATIONAL_H
|
|
#define COMMON_RATIONAL_H
|
|
|
|
#include "common/scummsys.h"
|
|
#include "common/frac.h"
|
|
|
|
namespace Common {
|
|
|
|
/** A simple rational class that holds fractions. */
|
|
class Rational {
|
|
public:
|
|
Rational();
|
|
Rational(int num);
|
|
Rational(int num, int denom);
|
|
|
|
Rational &operator=(const Rational &right);
|
|
Rational &operator=(int right);
|
|
|
|
Rational &operator+=(const Rational &right);
|
|
Rational &operator-=(const Rational &right);
|
|
Rational &operator*=(const Rational &right);
|
|
Rational &operator/=(const Rational &right);
|
|
|
|
Rational &operator+=(int right);
|
|
Rational &operator-=(int right);
|
|
Rational &operator*=(int right);
|
|
Rational &operator/=(int right);
|
|
|
|
const Rational operator-() const;
|
|
|
|
const Rational operator+(const Rational &right) const;
|
|
const Rational operator-(const Rational &right) const;
|
|
const Rational operator*(const Rational &right) const;
|
|
const Rational operator/(const Rational &right) const;
|
|
|
|
const Rational operator+(int right) const;
|
|
const Rational operator-(int right) const;
|
|
const Rational operator*(int right) const;
|
|
const Rational operator/(int right) const;
|
|
|
|
bool operator==(const Rational &right) const;
|
|
bool operator!=(const Rational &right) const;
|
|
bool operator>(const Rational &right) const;
|
|
bool operator<(const Rational &right) const;
|
|
bool operator>=(const Rational &right) const;
|
|
bool operator<=(const Rational &right) const;
|
|
|
|
bool operator==(int right) const;
|
|
bool operator!=(int right) const;
|
|
bool operator>(int right) const;
|
|
bool operator<(int right) const;
|
|
bool operator>=(int right) const;
|
|
bool operator<=(int right) const;
|
|
|
|
void invert();
|
|
Rational getInverse() const;
|
|
|
|
int toInt() const;
|
|
double toDouble() const;
|
|
frac_t toFrac() const;
|
|
|
|
int getNumerator() const { return _num; }
|
|
int getDenominator() const { return _denom; }
|
|
|
|
void debugPrint(int debuglevel = 0, const char *caption = "Rational:") const;
|
|
|
|
private:
|
|
int _num;
|
|
int _denom;
|
|
|
|
void cancel();
|
|
};
|
|
|
|
const Rational operator+(int left, const Rational &right);
|
|
const Rational operator-(int left, const Rational &right);
|
|
const Rational operator*(int left, const Rational &right);
|
|
const Rational operator/(int left, const Rational &right);
|
|
|
|
bool operator==(int left, const Rational &right);
|
|
bool operator!=(int left, const Rational &right);
|
|
bool operator>(int left, const Rational &right);
|
|
bool operator<(int left, const Rational &right);
|
|
bool operator>=(int left, const Rational &right);
|
|
bool operator<=(int left, const Rational &right);
|
|
|
|
} // End of namespace Common
|
|
|
|
#endif
|