ft_cpp_modules/module 02/ex02/Fixed.cpp at main · zelhajou/ft_cpp_modules · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   Fixed.cpp                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: zelhajou <zelhajou@student.1337.ma>        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/06/13 17:24:54 by zelhajou          #+#    #+#             */
/*   Updated: 2024/06/14 14:07:37 by zelhajou         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "Fixed.hpp"
#include <cmath>

Fixed::Fixed() : _fixedPointValue(0) { }

Fixed::Fixed(const int intVal)
{
	_fixedPointValue = intVal << _fractionalBits;
}

Fixed::Fixed(const float floatVal)
{
	_fixedPointValue = roundf(floatVal * (1 << _fractionalBits));
}

Fixed::Fixed(const Fixed &other)
{
	*this = other;
}

Fixed &Fixed::operator=(const Fixed &other)
{
	if (this != &other)
	{
		this->_fixedPointValue = other.getRawBits();
	}
	return *this;
}

Fixed::~Fixed() {}

int		Fixed::getRawBits(void) const
{
	return this->_fixedPointValue;
}

void	Fixed::setRawBits(int const raw)
{
	this->_fixedPointValue = raw;
}

float	Fixed::toFloat(void) const
{
	return (float)this->_fixedPointValue / (1 << _fractionalBits);
}

int		Fixed::toInt(void) const
{
	return this->_fixedPointValue >> _fractionalBits;
}

bool Fixed::operator>(const Fixed& other) const {
    return this->_fixedPointValue > other._fixedPointValue;
}

bool Fixed::operator<(const Fixed& other) const {
    return this->_fixedPointValue < other._fixedPointValue;
}

bool Fixed::operator>=(const Fixed& other) const {
    return this->_fixedPointValue >= other._fixedPointValue;
}

bool Fixed::operator<=(const Fixed& other) const {
    return this->_fixedPointValue <= other._fixedPointValue;
}

bool Fixed::operator==(const Fixed& other) const {
    return this->_fixedPointValue == other._fixedPointValue;
}

bool Fixed::operator!=(const Fixed& other) const {
    return this->_fixedPointValue != other._fixedPointValue;
}

Fixed Fixed::operator+(const Fixed& other) const {
    Fixed result;
    result.setRawBits(this->_fixedPointValue + other.getRawBits());
    return result;
}

Fixed Fixed::operator-(const Fixed& other) const {
    Fixed result;
    result.setRawBits(this->_fixedPointValue - other.getRawBits());
    return result;
}

Fixed Fixed::operator*(const Fixed& other) const {
    Fixed result;
    result.setRawBits((this->_fixedPointValue * other.getRawBits()) >> _fractionalBits);
    return result;
}

Fixed Fixed::operator/(const Fixed& other) const {
    Fixed result;
    result.setRawBits((this->_fixedPointValue << _fractionalBits) / other.getRawBits());
    return result;
}

Fixed& Fixed::operator++() {
    ++_fixedPointValue;
    return *this;
}

Fixed Fixed::operator++(int) {
	Fixed tmp(*this);
	++_fixedPointValue;
	return tmp;
}

Fixed& Fixed::operator--() {
	--_fixedPointValue;
	return *this;
}

Fixed Fixed::operator--(int) {
	Fixed tmp(*this);
	--_fixedPointValue;
	return tmp;
}

Fixed& Fixed::min(Fixed& a, Fixed& b) {
	return (a < b) ? a : b;
}

const Fixed& Fixed::min(const Fixed& a, const Fixed& b) {
	return (a < b) ? a : b;
}

Fixed& Fixed::max(Fixed& a, Fixed& b) {
	return (a > b) ? a : b;
}

const Fixed& Fixed::max(const Fixed& a, const Fixed& b) {
	return (a > b) ? a : b;
}

std::ostream &operator<<(std::ostream &out, const Fixed &fixed)
{
	out << fixed.toFloat();
	return out;
}