/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_itoa.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/10/04 17:12:52 by erey-bet          #+#    #+#             */
/*   Updated: 2023/03/26 20:17:58 by erey-bet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "utils.h"

static long long	abso(long long n)
{
	if (n < 0)
		return (n * -1);
	return (n);
}

static void	get_size(long long n, long long *q, long long *i)
{
	*q = 1;
	*i = 1;
	while (n / *q > 9)
	{
		*q = *q * 10;
		(*i)++;
	}
}

char	*ft_itoa(long long n)
{
	char		*str;
	int			sign;
	long long	q;
	long long	i;

	sign = 1;
	if (n < 0)
		sign = -1;
	n = abso(n);
	get_size(n, &q, &i);
	str = malloc(sizeof(char) * (i + 2));
	if (!str)
		return (NULL);
	i = 0;
	if (sign == -1)
		str[i++] = '-';
	while (q > 1)
	{
		str[i++] = (n / q % 10) + 48;
		q = q / 10;
	}
	str[i++] = (n / q % 10) + 48;
	str[i] = '\0';
	return (str);
}