ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ssacrist <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/12/24 03:18:38 by ssacrist          #+#    #+#             */
/*   Updated: 2020/01/09 19:49:46 by ssacrist         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*new;
	size_t	i;
	size_t	j;

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