Libft/ft_strjoin.c at main · devPaidion/Libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kjungoo <kjungoo@student.42seoul.kr>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/07/12 16:50:19 by kjungoo           #+#    #+#             */
/*   Updated: 2022/07/21 17:13:52 by kjungoo          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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