ft_strnstr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strnstr.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: maareval <maareval@student.42malaga.com>   +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/04/27 18:39:38 by maareval          #+#    #+#             */
/*   Updated: 2022/04/28 21:29:45 by maareval         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"
#include <stdio.h>
#include <string.h>

char	*ft_strnstr(const char *s1, const char *s2, size_t n)
{
	size_t	i;
	size_t	j;

	if (!*s2)
		return ((char *)s1);
	i = 0;
	while (s1[i] && (size_t)i < n)
	{
		if (s1[i] == s2[0])
		{
			j = 0;
			while (s1[i + j] == s2[j] && i + j < n)
			{
				if (s2[j + 1] == '\0')
					return ((char *)&s1[i]);
				j++;
			}
		}
		i++;
	}
	return (0);
}

/*
int main (void)
{
	const char	s1[];
	const char	s2[];
	size_t		n;

    s1[] = "Hola";
    s2[] = "Ho";
    n = 8;
    printf("%s\n", strnstr (s1, s2, n));
    return (0);
}
*/