#include <string.h>

static int	eval_is_negative(int *n)
{
	if (*n < 0)
	{
		*n = *n * -1;
		return (1);
	}
	return (0);
}

static int	eval_digit_nbr(int n)
{
	int		digit_nbr;

	if (n == 0)
		return (1);
	digit_nbr = 0;
	while (n != 0)
	{
		digit_nbr++;
		n = n / 10;
	}
	return (digit_nbr);
}

char	*ft_itoa(int n)
{
	int		i;
	char	*str;
	int		is_negative;

	if (n == -2147483648)
		return (strdup("-2147483648"));
	is_negative = eval_is_negative(&n);
	i = eval_digit_nbr(n) + is_negative;
	str = new char[i+1];
	if (is_negative)
		str[0] = '-';
	str[i] = '\0';
	while (i > 0 + is_negative)
	{
		i--;
		str[i] = (n % 10) + '0';
		n = n / 10;
	}
	return (str);
}