libft/ft_calloc.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_calloc.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/17 10:20:05 by kcolin            #+#    #+#             */
/*   Updated: 2024/10/19 18:12:22 by kcolin           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"
#include <stdlib.h>

void	*ft_calloc(size_t nmemb, size_t size)
{
	size_t	bytes;
	void	*out;

	bytes = nmemb * size;
	if (nmemb != 0 && bytes / nmemb != size)
		return (NULL);
	else
	{
		out = malloc(bytes);
		if (out != NULL)
			ft_memset(out, 0, bytes);
		return (out);
	}
}

/* #include <stdio.h> */
/* #include <stdint.h> */

/* int	main(void) */
/* { */
/* 	free(ft_calloc(0, sizeof(int))); */
/* 	free(calloc(0, sizeof(int))); */
/* 	printf("%p\t%p\n", */
/* 		   ft_calloc(0, sizeof(int)), */
/* 		   calloc(0, sizeof(int))); */
/* 	free(ft_calloc(1024, sizeof(int))); */
/* 	free(calloc(1024, sizeof(int))); */
/* 	printf("%p\t%p\n", */
/* 		   ft_calloc(1024, sizeof(int)), */
/* 		   calloc(1024, sizeof(int))); */
/* 	free(ft_calloc(SIZE_MAX, sizeof(int))); */
/* 	free(calloc(SIZE_MAX, sizeof(int))); */
/* 	printf("%p\t%p\n", */
/* 		   ft_calloc(SIZE_MAX, sizeof(int)), */
/* 		   calloc(SIZE_MAX, sizeof(int))); */
/* } */