ft_strncmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strncmp.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cbernot <cbernot@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/11/09 10:01:48 by cbernot           #+#    #+#             */
/*   Updated: 2022/11/12 00:11:59 by cbernot          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int	ft_strncmp(const char *s1, const char *s2, size_t n)
{
	size_t			i;
	unsigned char	*us1;
	unsigned char	*us2;

	if (n == 0)
		return (0);
	i = 0;
	us1 = (unsigned char *)s1;
	us2 = (unsigned char *)s2;
	while (n - 1 > 0 && us1[i] != '\0' && us2[i] != '\0' && us1[i] == us2[i])
	{
		i++;
		n--;
	}
	return (us1[i] - us2[i]);
}