ft_itoa.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_itoa.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jvico-ga <jvico-ga@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/09/19 14:21:06 by jvico-ga          #+#    #+#             */
/*   Updated: 2021/11/05 21:13:41 by jvico-ga         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_itoa(long long n)
{
	long	number;
	int		count;
	char	*ptr;

	number = n;
	count = 0;
	while (number != 0 && count++ != -1)
		number = number / 10;
	number = n;
	if (n <= 0 && count++ != -1)
		number = number * -1;
	ptr = (char *) malloc(sizeof(char) * (count + 1));
	if (ptr == NULL)
		return (NULL);
	ptr[count] = '\0';
	if (n == 0 && count-- != -1)
		ptr[0] = 48;
	while (number != 0)
	{
		ptr[count-- - 1] = (number % 10) + 48;
		number = number / 10;
	}
	if (count != 0)
		ptr[0] = '-';
	return (ptr);
}