ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: thakala <thakala@student.hive.fi>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/11/17 20:33:39 by thakala           #+#    #+#             */
/*   Updated: 2021/12/07 15:13:50 by thakala          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"
#include <stdlib.h>

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*result;
	size_t	len1;
	size_t	len2;

	len1 = ft_strlen(s1);
	len2 = ft_strlen(s2);
	result = (char *)malloc(sizeof(char) * (len1 + len2++ + 1));
	if (!result)
		return (NULL);
	while (len2--)
		result[len1 + len2] = s2[len2];
	while (len1--)
		result[len1] = s1[len1];
	return (result);
}