derversion

utils/ft_utils_mem.c

@@ -0,0 +1,63 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_utils_mem.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: fgras-ca <fgras-ca@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/01/30 12:33:22 by fgras-ca          #+#    #+#             */
+/*   Updated: 2024/01/30 13:58:28 by fgras-ca         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../cub3d.h"
+
+void	ft_bzero(void *ptr, size_t len)
+{
+	size_t	i;
+
+	i = 0;
+	while (i < len)
+	{
+		*(char *)(ptr + i) = 0;
+		i++;
+	}
+}
+
+void	*ft_calloc(size_t nmemb, size_t size)
+{
+	void	*ptr;
+
+	if (!nmemb || !size)
+		return (malloc(0));
+	if ((nmemb * size) / size != nmemb)
+		return (NULL);
+	ptr = malloc(size * nmemb);
+	if (!ptr)
+		return (0);
+	ft_bzero(ptr, size * nmemb);
+	return (ptr);
+}
+
+void	*ft_realloc(void *ptr, size_t size)
+{
+	void	*new_ptr;
+
+	if (ptr == NULL)
+	{
+		return (malloc(size));
+	}
+	if (size == 0)
+	{
+		free(ptr);
+		return (NULL);
+	}
+	new_ptr = malloc(size);
+	if (new_ptr == NULL)
+	{
+		return (NULL);
+	}
+	ft_memcpy(new_ptr, ptr, size);
+	free(ptr);
+	return (new_ptr);
+}