ft_atoi.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   ft_atoi.c                                          :+:    :+:            */
/*                                                     +:+                    */
/*   By: splattje <splattje@student.codam.nl>         +#+                     */
/*                                                   +#+                      */
/*   Created: 2023/10/04 16:10:30 by splattje      #+#    #+#                 */
/*   Updated: 2023/10/18 16:58:33 by splattje      ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int	ft_atoi(const char *nptr)
{
	int	integer;
	int	sign;

	integer = 0;
	sign = 1;
	while ((*nptr >= 9 && *nptr <= 13) || *nptr == 32)
		nptr++;
	if (*nptr == '+' || *nptr == '-')
	{
		if (*nptr == '-')
			sign = -1;
		nptr++;
	}
	while (ft_isdigit(*nptr))
	{
		integer = integer * 10 + (*nptr - '0');
		nptr++;
	}
	return (integer * sign);
}