36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* ft_atoi.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: pbonilla <eirodeis.lepnj@gmail.com> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2020/11/11 16:00:14 by pbonilla #+# #+# */
|
|
/* Updated: 2020/11/18 14:03:00 by pbonilla ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "libft.h"
|
|
|
|
int ft_atoi(const char *nptr)
|
|
{
|
|
int nbr;
|
|
int sgn;
|
|
|
|
sgn = 1;
|
|
nbr = 0;
|
|
while (*nptr && (*nptr == ' ' || *nptr == '\n' || *nptr == '\t' ||
|
|
*nptr == '\v' || *nptr == '\f' || *nptr == '\r'))
|
|
++nptr;
|
|
if (*nptr == '-')
|
|
sgn *= -1;
|
|
if (*nptr == '-' || *nptr == '+')
|
|
++nptr;
|
|
while (*nptr && *nptr >= '0' && *nptr <= '9')
|
|
{
|
|
nbr = nbr * 10 + (*nptr - 48);
|
|
++nptr;
|
|
}
|
|
return (nbr * sgn);
|
|
}
|