/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_itoa.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: whaffman <whaffman@student.codam.nl>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/07/05 18:42:04 by whaffman          #+#    #+#             */
/*   Updated: 2024/07/10 15:50:44 by whaffman         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>
#include "libft.h"

static char	*itoa_stralloc(int n)
{
	int	i;

	i = 0;
	if (n <= 0)
		i++;
	while (n)
	{
		i++;
		n /= 10;
	}
	return (ft_calloc((i + 1), sizeof(char)));
}

char	*ft_itoa(int n)
{
	int		i;
	long	ln;
	long	divider;
	char	*result;

	result = itoa_stralloc(n);
	if (!result)
		return (NULL);
	ln = n;
	i = 0;
	divider = 1;
	if (ln < 0)
	{
		ln *= -1;
		result[i++] = '-';
	}
	while (divider * 10 <= ln)
		divider *= 10;
	while (divider)
	{
		result[i++] = ln / divider + '0';
		ln %= divider;
		divider /= 10;
	}
	return (result);
}