ft_strncmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strncmp.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erli <marvin@42.fr>                        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2018/11/07 17:11:16 by erli              #+#    #+#             */
/*   Updated: 2018/11/09 16:05:12 by erli             ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <string.h>

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

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