Contents
How is a smart pointer used in a class template?
As shown in the example, a smart pointer is a class template that you declare on the stack, and initialize by using a raw pointer that points to a heap-allocated object. After the smart pointer is initialized, it owns the raw pointer. This means that the smart pointer is responsible for deleting the memory that the raw pointer specifies.
Is there a way to manage textures in C + +?
I’m new to C++ and SDL, and I’ve written a Texture manager class whose purpose is to help me manage sprites and other textures. I have a dispose method which unloads all the textures from a map container. It works correctly but I’d like to ask if I am not causing any memory leaks, or other pointer related issues.
When to use a special case smart pointer?
Special-case smart pointer for use in conjunction with shared_ptr. A weak_ptr provides access to an object that is owned by one or more shared_ptr instances, but does not participate in reference counting. Use when you want to observe an object, but do not require it to remain alive.
Is it OK to separate texture and texture manager?
You extract that code from the SDL Book, It use all Classes as Singleton, and I don’t like that, but well. The code is fine. I rewrite the manager to this: I separate the texture and texture manager.
How are smart pointers different from normal pointers?
Actually, smart pointers are objects which behave like pointers but do more than a pointer. These objects are flexible as pointers and have the advantage of being an object (like constructor and destructors called automatically). A smart pointer is designed to handle the problems caused by using normal pointers (hence called smart).
How to declare a smart pointer as a local variable?
Declare the smart pointer as an automatic (local) variable. (Do not use the new or malloc expression on the smart pointer itself.) In the type parameter, specify the pointed-to type of the encapsulated pointer. Pass a raw pointer to a new-ed object in the smart pointer constructor.
How are smart pointers introduced in C + + 11?
So in C++ 11, it introduces smart pointers that automatically manage memory and they will deallocate the object when they are not in use when the pointer is going out of scope automatically it’ll deallocate the memory. Consider the following simple C++ code with normal pointers.