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ft_itoa.c
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ft_itoa.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: smizuoch <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/05/21 18:35:00 by smizuoch #+# #+# */
/* Updated: 2023/06/04 13:32:43 by smizuoch ### ########.fr */
/* */
/* ************************************************************************** */
#include"libft.h"
static char *numfill(int n, int i, long int j, char *dest)
{
dest[i] = '\0';
j = n;
if (j < 0)
j *= -1;
while (i)
{
dest[i - 1] = j % 10 + '0';
j /= 10;
i --;
}
if (n < 0)
dest[0] = '-';
return (dest);
}
char *ft_itoa(int n)
{
int i;
long int j;
char *dest;
j = n;
i = 0;
if (n <= 0)
{
i = 1;
j *= -1;
}
while (j)
{
j /= 10;
i ++;
}
dest = malloc(i + 1);
if (dest == NULL)
return (NULL);
dest = numfill(n, i, j, dest);
return (dest);
}
/* int main(void)
{
char *str;
str = ft_itoa(-123);
printf("%s\n", str);
} */