ft_strlcat.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strlcat.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jede-ara <jede-ara@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/11/02 15:35:40 by jede-ara          #+#    #+#             */
/*   Updated: 2022/11/08 14:29:38 by jede-ara         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

/* 
	DESCRIÇÃO: strlcat() concatena strings, considera o tamanho total de memória
	para a string concatenada.
	
*/
#include "libft.h"

size_t	ft_strlcat(char *dest, const char *src, size_t size)
{
	size_t	i;
	size_t	j;
	size_t	dlen;
	size_t	slen;

	i = 0;
	j = 0;
	if (!size)
		return (ft_strlen(src));
	while (dest[j] != '\0')
	{
		j++;
	}
	dlen = j;
	slen = ft_strlen(src);
	if (size == 0 || size <= dlen)
		return (slen + size);
	while (src [i] != '\0' && i < size - dlen - 1)
	{
		dest[j] = src[i];
		i++;
		j++;
	}
	dest[j] = '\0';
	return (dlen + slen);
}

/*#include <stdio.h>
int	main(void)
{
	char	src[30] = "how are you?";
    	char	dest [30] = "Hello, ";
    	size_t	size = 30;

	ft_strlcat(dest, src, size);

   printf("%s", dest);
}*/