ft_strncmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strncmp.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: luciehdr <luciehdr@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/09/15 17:33:31 by luciehdr          #+#    #+#             */
/*   Updated: 2020/11/18 21:01:02 by luciehdr         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int		ft_strncmp(const char *s1, const char *s2, size_t n)
{
	size_t	i;

	i = 0;
	if (n == 0)
		return (0);
	while (s1[i] && s2[i] && i < n)
	{
		if (s1[i] != s2[i])
			return (((unsigned char *)s1)[i] - ((unsigned char *)s2)[i]);
		i++;
	}
	if (i == n)
		return (((unsigned char *)s1)[i - 1] - ((unsigned char *)s2)[i - 1]);
	return (((unsigned char *)s1)[i] - ((unsigned char *)s2)[i]);
}