61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* ft_atoi.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: bszilas <bszilas@student.42vienna.com> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2024/04/10 10:49:04 by vvobis #+# #+# */
|
|
/* Updated: 2024/09/13 22:19:12 by bszilas ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "libft.h"
|
|
|
|
int is_space(char const c)
|
|
{
|
|
if ((c >= 9 && c <= 13) || c == ' ')
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
int ft_atoi(char const *s)
|
|
{
|
|
int nb;
|
|
char const *tmp;
|
|
|
|
nb = 0;
|
|
while (is_space(*s))
|
|
s++;
|
|
tmp = s;
|
|
if (*tmp == '+' || *tmp == '-')
|
|
tmp++;
|
|
while (*tmp >= '0' && *tmp <= '9')
|
|
{
|
|
nb *= 10;
|
|
nb += (*tmp - '0');
|
|
tmp++;
|
|
}
|
|
if (*s == '-')
|
|
nb = -nb;
|
|
return (nb);
|
|
}
|
|
|
|
long ft_atol(const char *nptr)
|
|
{
|
|
int64_t n;
|
|
int sign;
|
|
|
|
n = 0;
|
|
sign = 1;
|
|
while (ft_isspace(*nptr))
|
|
nptr++;
|
|
if (*nptr == '-')
|
|
sign = -1;
|
|
if (sign == -1 || *nptr == '+')
|
|
nptr++;
|
|
while (*nptr >= '0' && *nptr <= '9')
|
|
n = n * 10 + (*nptr++ - '0');
|
|
return (n * sign);
|
|
}
|