ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jbrown <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/01/18 14:32:55 by jbrown            #+#    #+#             */
/*   Updated: 2022/01/28 14:21:10 by jbrown           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	int		i;
	int		j;
	char	*r;

	if (!s1 || !s2)
		return (NULL);
	r = (char *) malloc((ft_strlen(s1) + ft_strlen(s2) + 1) * sizeof(char));
	if (!r)
		return (NULL);
	i = -1;
	while (s1[++i])
		r[i] = s1[i];
	j = 0;
	while (s2[j])
		r[i++] = s2[j++];
	r[i] = '\0';
	return (r);
}