cpp02/ex02/Fixed/Fixed.cpp

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   Fixed.cpp                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/09/10 00:54:50 by tigos             #+#    #+#             */
/*   Updated: 2025/09/12 13:08:05 by aortigos         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "Fixed.hpp"

// Default constructor
Fixed::Fixed() : value(0)
{
	//std::cout << "Default constructor called" << std::endl;
}

// Constructor with constant integer
Fixed::Fixed(const int nb)
{
	//std::cout << "Int constructor called" << std::endl;
	this->value = nb * (1 << this->fract);
}

// Constructor with constant floating-point number
Fixed::Fixed(const float nb)
{
	//std::cout << "Float constructor called" << std::endl;
	this->value = roundf(nb * (1 << this->fract));
}

// Copy constructor
Fixed::Fixed(const Fixed &other)
{
	//std:: cout << "Copy constructor called" << std::endl;
	this->value = other.value;
}

// Copy assignment operator overload
Fixed& Fixed::operator=(Fixed const &other)
{
	//std::cout << "Copy assignment operator called" << std::endl;
	if (this != &other)
		this->value = other.getRawBits();
	return (*this);
}

// Destructor
Fixed::~Fixed()
{
	//std::cout << "Destructor called" << std::endl;
}

// getRawBits()
int Fixed::getRawBits( void ) const
{
	//std::cout << "getRawBits member function called" << std::endl;
	return (this->value);
}

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

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

// toInt
int		Fixed::toInt( void ) const
{
	return (this->value >> this->fract);
}

// · Comparison operators
bool	Fixed::operator<(const Fixed &other) const
{
	return (this->value < other.getRawBits());
}

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

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

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

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

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

// · Arithmetic operators
Fixed Fixed::operator+(Fixed const &other) const
{
	Fixed	res;

	res.setRawBits(this->value + other.getRawBits());
	return (res);
}

Fixed Fixed::operator-(Fixed const &other) const
{
	Fixed	res;

	res.setRawBits(this->value - other.getRawBits());
	return (res);
}

Fixed Fixed::operator*(Fixed const &other) const
{
	Fixed	res;
	long	result;

	result = (long)this->value * (long)other.getRawBits();
	result = result >> this->fract;
	res.setRawBits((int)result);
	return (res);
}

Fixed Fixed::operator/(Fixed const &other) const
{
	if (other.getRawBits() == 0)
	{
		return Fixed();
	}
	long result = (long)this->value << this->fract;
	result = result / other.getRawBits();
	
	Fixed res;
	res.setRawBits((int)result);
	return (res);
}

// · Increments / decrements

Fixed& Fixed::operator++()
{
	this->value += 1;
	return (*this);
}

Fixed Fixed::operator++(int)
{
	Fixed temp(*this);

	this->value += 1;
	return (temp);
}

Fixed& Fixed::operator--()
{
	this->value -= 1;
	return (*this);
}

Fixed Fixed::operator--(int)
{
	Fixed temp(*this);
	
	this->value -= 1;
	return (temp);
}


// · Max and min

Fixed&	Fixed::min(Fixed &a, Fixed &b)
{
	if (a.getRawBits() < b.getRawBits())
		return (a);
	return (b);
}

const Fixed&	Fixed::min(const Fixed &a, const Fixed &b)
{
	if (a.getRawBits() < b.getRawBits())
		return (a);
	return (b);
}

Fixed&	Fixed::max(Fixed &a, Fixed &b)
{
	if (a.getRawBits() > b.getRawBits())
		return (a);
	return (b);
}

const Fixed&	Fixed::max(const Fixed &a, const Fixed &b)
{
	if (a.getRawBits() > b.getRawBits())
		return (a);
	return (b);
}

// << operator overload
std::ostream& operator<<(std::ostream& os, Fixed const &other)
{
	os << other.toFloat();
	return (os);
}