ft_calloc.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_calloc.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: dporhomo <dporhomo@student.42prague.com    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/14 15:59:08 by dporhomo          #+#    #+#             */
/*   Updated: 2025/11/15 14:47:03 by dporhomo         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

void	*ft_calloc(size_t nmemb, size_t size)
{
	size_t	total_size;
	size_t	i;
	char	*ptr;

	if (nmemb == 0 || size == 0)
		return (malloc(1));
	total_size = nmemb * size;
	if (nmemb > 0 && total_size / nmemb != size)
		return (NULL);
	ptr = (char *)malloc(total_size);
	if (ptr == NULL)
		return (NULL);
	i = 0;
	while (i < total_size)
	{
		ptr[i] = 0;
		i++;
	}
	return ((void *)ptr);
}