/*
Libft Copyright (C) 2026 yctct

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

#include "libft.h"

static long int	ft_nbrlen(long int n)
{
	int	len;

	len = 0;
	if (n < 0)
	{
		n = -n;
		len += 1;
	}
	while (n)
	{
		n /= 10;
		len++;
	}
	return (len);
}

char	*ft_itoa(int nb)
{
	char	*c;
	int		len;
	long	n;

	n = nb;
	if (n == 0)
		return (ft_strdup("0"));
	len = ft_nbrlen(n);
	c = malloc(sizeof(char) * (len + 1));
	if (!c)
		return (NULL);
	if (n < 0)
	{
		n = -n;
		c[0] = '-';
	}
	c[len] = '\0';
	while (n)
	{
		c[--len] = (n % 10) + '0';
		n /= 10;
	}
	return (c);
}