ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jwon <marvin@42.fr>                        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/04/06 15:48:53 by jwon              #+#    #+#             */
/*   Updated: 2021/11/25 18:39:42 by kamanfo          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	int			idx;
	int			idx_join;
	char		*join;

	join = malloc((ft_strlen((char *)s1) + ft_strlen((char *)s2) + 1));
	if (!s1 || !s2 || !join)
		return (NULL);
	idx = 0;
	idx_join = 0;
	while (s1[idx])
		join[idx_join++] = s1[idx++];
	idx = 0;
	while (s2[idx])
		join[idx_join++] = s2[idx++];
	join[idx_join] = '\0';
	return (join);
}