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ft_itoa.c
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ft_itoa.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: aabda <aabda@student.s19.be> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/07/14 14:08:28 by aabda #+# #+# */
/* Updated: 2022/07/14 15:59:43 by aabda ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int ft_len(long int nb)
{
int i;
i = 0;
if (nb == 0)
return (1);
if (nb < 0)
{
nb *= -1;
i++;
}
while (nb != 0)
{
nb /= 10;
i++;
}
return (i);
}
char *ft_itoa(int n)
{
long int nbr;
size_t len;
char *str;
nbr = n;
len = ft_len(nbr);
str = malloc(sizeof(char) * (len + 1));
if (!str)
return (NULL);
str[len--] = '\0';
if (nbr == 0)
str[0] = '0';
if (nbr < 0)
{
str[0] = '-';
nbr *= -1;
}
while (nbr > 0)
{
str[len--] = nbr % 10 + '0';
nbr /= 10;
}
return (str);
}