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ft_itoa.c
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ft_itoa.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ahjadani <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/10 15:25:34 by ahjadani #+# #+# */
/* Updated: 2021/11/14 18:40:18 by ahjadani ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int int_length(long nb)
{
int len;
len = 0;
if (nb == 0)
return (1);
if (nb < 0)
{
nb *= -1;
len++;
}
while (nb > 0)
{
nb /= 10;
len++;
}
return (len);
}
char *ft_itoa(int n)
{
char *str;
long nb;
int i;
nb = n;
i = int_length(nb);
str = (char *)malloc(sizeof(char) * (i + 1));
if (!str)
return (NULL);
str[i--] = '\0';
if (nb == 0)
str[0] = '0';
if (nb < 0)
{
str[0] = '-';
nb *= -1;
}
while (nb > 0)
{
str[i--] = 48 + (nb % 10);
nb /= 10;
}
return (str);
}