libft/ft_strlcat.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strlcat.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/15 16:00:39 by kcolin            #+#    #+#             */
/*   Updated: 2024/10/16 15:19:17 by kcolin           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

size_t	ft_strlcat(char *dst, const char *src, size_t size)
{
	size_t	dst_len;
	size_t	src_len;
	size_t	i;

	dst_len = 0;
	while (dst[dst_len] != '\0')
		dst_len++;
	src_len = 0;
	while (src[src_len] != '\0')
		src_len++;
	if (size <= dst_len)
		return (size + src_len);
	i = 0;
	while (src[i] != '\0' && i < size - dst_len - 1)
	{
		dst[dst_len + i] = src[i];
		i++;
	}
	dst[dst_len + i] = '\0';
	return (dst_len + src_len);
}

/*
#include <bsd/string.h>
#include <stdio.h>

int	main(void)
{
	char	dest1[40] = "Hi there, hello!!!!!";
	char	dest2[40] = "Hi there, hello!!!!!";
	char	*src = " Hello!";
	int		res1;
	size_t	res2;

	res1 = ft_strlcat(dest1, src, 20);
	printf("mine:\t%u\t'%s'\n", res1, dest1);
	res2 = strlcat(dest2, src, 20);
	printf("lib:\t%zu\t'%s'\n", res2, dest2);
	res1 = ft_strlcat(dest1, src, 40);
	printf("mine:\t%u\t'%s'\n", res1, dest1);
	res2 = strlcat(dest2, src, 40);
	printf("lib:\t%zu\t'%s'\n", res2, dest2);
	return (0);
}
*/