ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: maceccar <maceccar@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/11/10 15:43:20 by maceccar          #+#    #+#             */
/*   Updated: 2023/11/10 15:43:20 by maceccar         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*res;
	size_t	total_length;
	int		i;
	int		j;

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