regler leak dans exit

2025-02-25 19:09:14 +01:00
parent 029c8dcc70
commit 5a7424600d
7 changed files with 116 additions and 9 deletions
@@ -0,0 +1,64 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_realloc.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: yantoine <yantoine@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/02/25 17:58:34 by yantoine          #+#    #+#             */
+/*   Updated: 2025/02/25 18:06:12 by yantoine         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "miniRT.h"
+
+static void	*allocate_memory(size_t new_size)
+{
+	void	*new_ptr;
+
+	new_ptr = malloc(new_size);
+	if (!new_ptr)
+		return (NULL);
+	return (new_ptr);
+}
+
+static void	copy_memory(void *dst, void *src, size_t size)
+{
+	size_t	i;
+
+	i = 0;
+	while (i < size)
+	{
+		((char *)dst)[i] = ((char *)src)[i];
+		i++;
+	}
+}
+
+static size_t	get_copy_size(size_t old_size, size_t new_size)
+{
+	if (old_size < new_size)
+		return (old_size);
+	return (new_size);
+}
+
+void	*ft_realloc(void *ptr, size_t old_size, size_t new_size)
+{
+	void	*new_ptr;
+	size_t	copy_size;
+
+	if (new_size == 0)
+	{
+		free(ptr);
+		return (NULL);
+	}
+	new_ptr = allocate_memory(new_size);
+	if (!new_ptr)
+		return (NULL);
+	if (ptr)
+	{
+		copy_size = get_copy_size(old_size, new_size);
+		copy_memory(new_ptr, ptr, copy_size);
+		free(ptr);
+	}
+	return (new_ptr);
+}