libft/ft_strjoin.c at main · maiadegraaf/libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   ft_strjoin.c                                       :+:    :+:            */
/*                                                     +:+                    */
/*   By: mgraaf <mgraaf@student.codam.nl>             +#+                     */
/*                                                   +#+                      */
/*   Created: 2021/12/16 14:24:11 by mgraaf        #+#    #+#                 */
/*   Updated: 2021/12/16 14:24:13 by mgraaf        ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	int		len;
	char	*s1_2;
	int		i;

	if ((!s1 || !s2) || (!s1 && !s2))
		return (0);
	len = ft_strlen(s1) + ft_strlen(s2);
	s1_2 = (char *)malloc(len * sizeof(char) + 1);
	i = 0;
	if (!s1_2)
		return (0);
	while (*s1)
	{
		s1_2[i] = *s1;
		s1++;
		i++;
	}
	while (*s2)
	{
		s1_2[i] = *s2;
		s2++;
		i++;
	}
	s1_2[i] = '\0';
	return (s1_2);
}