ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: aizsak <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/11/07 11:45:02 by aizsak            #+#    #+#             */
/*   Updated: 2022/11/11 17:02:36 by aizsak           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	if (s1 == NULL || s2 == NULL)
		return (NULL);
	size = ft_strlen(s1) + ft_strlen(s2) + 1;
	dst = ft_calloc(sizeof(char), size);
	if (dst == NULL)
		return (NULL);
	i = 0;
	while (s1[i])
	{
		dst[i] = s1[i];
		i++;
	}
	j = 0;
	while (s2[j])
	{
		dst[i + j] = s2[j];
		j++;
	}
	dst[i + j] = '\0';
	return (dst);
}