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ft_itoa.c
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ft_itoa.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: vscabell <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/01/22 17:34:18 by vscabell #+# #+# */
/* Updated: 2020/01/29 09:01:02 by vscabell ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int ft_nbrlen(int nbr)
{
int len;
long n;
n = nbr;
len = 1;
if (n < 0)
{
n = n * -1;
len++;
}
while (n / 10 > 0)
{
n = n / 10;
len++;
}
return (len);
}
char *ft_itoa(int n)
{
long nbr;
char *itoa;
int i;
int len;
nbr = n;
len = ft_nbrlen(nbr);
if (!(itoa = malloc((len + 1) * sizeof(char))))
return (NULL);
itoa[len] = '\0';
i = 0;
if (nbr < 0)
{
itoa[i] = '-';
nbr = nbr * -1;
i++;
}
while (nbr / 10 > 0 && len > i)
{
itoa[len - 1] = nbr % 10 + '0';
nbr = nbr / 10;
len--;
}
itoa[i] = nbr % 10 + '0';
return (itoa);
}