libft/ft_strjoin.c at main · samikhan78-wb/libft · 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
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: alexfran <alexfran@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/18 16:22:48 by alexfran          #+#    #+#             */
/*   Updated: 2025/11/30 16:43:08 by alexfran         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	int		i;
	int		j;
	char	*res;

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