ft_strncmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strncmp.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: nbarreir <nbarreir@student.42sp.org.br>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/02/16 03:09:37 by nbarreir          #+#    #+#             */
/*   Updated: 2021/04/21 21:10:58 by nbarreir         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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