ft_strncmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strncmp.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jonchoi <jonchoi@student.42seoul.kr>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/07/08 04:56:40 by jonchoi           #+#    #+#             */
/*   Updated: 2022/07/15 21:18:02 by jonchoi          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int	ft_strncmp(const char *s1, const char *s2, size_t n)
{
	unsigned char	*c1;
	unsigned char	*c2;

	c1 = (unsigned char *)s1;
	c2 = (unsigned char *)s2;
	while (n && (*c1 || *c2))
	{
		if (*c1 != *c2)
			break ;
		c1++;
		c2++;
		n--;
	}
	if (!n)
		return (0);
	return (*c1 - *c2);
}