cpp02/ex01/Fixed.cpp

#include "Fixed.hpp"
#include <bitset>
#include <sstream>

const int Fixed::fracbits(8);

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

Fixed::Fixed(const int val) {
  std::cout << "Int constructor called with " << val << std::endl;
  value = val << fracbits;
}

Fixed::Fixed(const float val) {
  std::cout << "Float constructor called with " << val << std::endl;
  const static int factor = 1 << fracbits;
  float temp = (val * factor);
  if (temp >= 0)
    temp += 0.5f;
  else
    temp -= 0.5f;
  value = (int)(temp);
}

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

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

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

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

void Fixed::setRawBits(int const raw) { value = raw; }

float Fixed::toFloat(void) const {
  const static int factor = 1 << fracbits;
  float result = (float)value / factor;
  return (result);
}

int Fixed::toInt(void) const {
  int result = (value >> fracbits);
  return (result);
}

std::string Fixed::toBin(void) const {
  std::stringstream result;
  result << std::bitset<32 - fracbits>(value >> fracbits);
  result << ".";
  result << std::bitset<fracbits>(value & (1 << fracbits) - 1);
  return result.str();
}

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