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ft_itoa.c
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ft_itoa.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: bsyvasal <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/10/26 12:28:02 by bsyvasal #+# #+# */
/* Updated: 2023/10/30 16:30:05 by bsyvasal ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int intlen(int n)
{
int i;
i = 1;
while (ft_power(10, i) <= n)
if (++i == 10)
break ;
return (i);
}
char *ft_itoa(int n)
{
int neg;
char *str;
int i;
neg = 0;
if (n < 0)
{
if (n == -2147483648)
return (ft_strdup("-2147483648"));
n = n * -1;
neg = 1;
}
i = intlen(n) + 1;
str = malloc(neg + i--);
if (!str)
return (0);
str[neg + i--] = 0;
while (i >= 0)
{
str[neg + i--] = n % 10 + 48;
n /= 10;
}
if (neg)
str[0] = '-';
return (str);
}