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ft_itoa.c
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ft_itoa.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tauer <tauer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/09 16:27:57 by tauer #+# #+# */
/* Updated: 2023/11/13 14:03:58 by tauer ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static char *fill(int nb, long int nbr, int size)
{
char *str;
if (nb == 0)
{
str = (char *)malloc(sizeof(char) * 2);
if (!str)
return (NULL);
str[0] = '0';
str[1] = '\0';
return (str);
}
str = (char *)malloc(sizeof(char) * size);
if (!str)
return (NULL);
str[size - 1] = '\0';
size -= 2;
while (nbr)
{
str[size--] = nbr % 10 + '0';
nbr /= 10;
}
if (size == 0 && nb < 0)
str[size] = '-';
return (str);
}
static int mal_size(int nb, long int nbr, int size)
{
if (nb < 0)
size += 2;
else
size += 1;
while (nbr)
{
size++;
nbr /= 10;
}
return (size);
}
char *ft_itoa(int nb)
{
long int nbr;
nbr = nb;
if (nb < 0)
nbr *= -1;
return (fill(nb, nbr, mal_size(nb, nbr, 0)));
}
// int main(void)
// {
// char *test;
// test = ft_itoa(-111111110);
// printf("%s\n", test);
// free(test);
// return (0);
// }