/* ************************************************************************** */
/*                                                                            */
/*                                                  :::  o_   ::::::    :::   */
/*   ft_atoi.c                                     :+:  /    :+::+:    :+:    */
/*                                                +:+   >   +:++:+    +:+     */
/*   By: whaffman <whaffman@student.codam.nl>    +#+  +:+  +#++#++:++#++      */
/*                                              +#+ +#+#+ +#++#+    +#+ \o/   */
/*   Created: 2024/10/10 17:00:13 by whaffman   #+#+# #+#+# #+#    #+#   |    */
/*   Updated: 2024/10/10 17:00:13 by whaffman   ###   ###  ###    ###   / \   */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

static int	ft_isspace(int c)
{
	return (' ' == c || '\f' == c || \
			'\n' == c || '\r' == c || \
			'\t' == c || '\v' == c);
}

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

	while (ft_isspace(*nptr))
		nptr++;
	res = 0;
	sign = 1;
	if (*nptr == '-' || *nptr == '+')
	{
		if (*nptr == '-')
			sign *= -1;
		nptr++;
	}
	while (ft_isdigit(*nptr))
		res = 10 * res + sign * (*nptr++ - '0');
	return (res);
}