ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ebin-ahm <ebin-ahm@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/28 20:22:06 by ebin-ahm          #+#    #+#             */
/*   Updated: 2025/12/05 14:04:20 by ebin-ahm         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*joined;
	size_t	len1;
	size_t	len2;
	size_t	index;

	if (!s1 || !s2)
		return (NULL);
	len1 = ft_strlen(s1);
	len2 = ft_strlen(s2);
	joined = (char *)malloc(len1 + len2 + 1);
	if (!joined)
		return (NULL);
	index = 0;
	while (index < len1)
	{
		joined[index] = s1[index];
		index++;
	}
	while (index < len1 + len2)
	{
		joined[index] = s2[index - len1];
		index++;
	}
	joined[index] = '\0';
	return (joined);
}