libft101/ft_strjoin.c at master · thperchi/libft101 · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
/* ************************************************************************** */
/*                                                          LE - /            */
/*                                                              /             */
/*   ft_strjoin.c                                     .::    .:/ .      .::   */
/*                                                 +:+:+   +:    +:  +:+:+    */
/*   By: thperchi <marvin@le-101.fr>                +:+   +:    +:    +:+     */
/*                                                 #+#   #+    #+    #+#      */
/*   Created: 2018/07/12 05:24:49 by thperchi     #+#   ##    ##    #+#       */
/*   Updated: 2018/10/11 15:51:11 by thperchi    ###    #+. /#+    ###.fr     */
/*                                                         /                  */
/*                                                        /                   */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	unsigned int	x;
	unsigned int	y;
	char			*str;

	x = 0;
	y = 0;
	if (s1 == NULL || s2 == NULL)
		return (NULL);
	while (s1[x])
		x++;
	while (s2[y])
		y++;
	if (!(str = malloc(sizeof(char *) * (x + y))))
		return (NULL);
	x = 0;
	y = 0;
	while (s1[x])
	{
		str[x] = s1[x];
		x++;
	}
	while (s2[y])
		str[x++] = s2[y++];
	str[x] = '\0';
	return (str);
}