ft_strncmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strncmp.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mmasuda <mmasuda@student.42tokyo.jp>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/04/11 22:30:20 by mmasuda           #+#    #+#             */
/*   Updated: 2021/04/19 11:19:28 by mmasuda          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int	ft_strncmp(const char *s1, const char *s2, size_t n)
{
	size_t			i;
	unsigned char	*uns1;
	unsigned char	*uns2;

	i = 0;
	uns1 = (unsigned char *)s1;
	uns2 = (unsigned char *)s2;
	while (i < n && (uns1[i] != '\0' || uns2[i] != '\0'))
	{
		if (uns1[i] != uns2[i])
			return (uns1[i] - uns2[i]);
		i++;
	}
	return (0);
}