Documentation of SFML 2.1

Warning: this page refers to an old version of SFML. Click here to switch to the latest version.
Protected Member Functions | List of all members
sf::NonCopyable Class Reference
System module

Utility class that makes any derived class non-copyable. More...

#include <NonCopyable.hpp>

Inheritance diagram for sf::NonCopyable:
sf::Context sf::Ftp sf::Http sf::Lock sf::Mutex sf::RenderTarget sf::Shader sf::Socket sf::Thread sf::ThreadLocal sf::Window

Protected Member Functions

 NonCopyable ()
 Default constructor.
 

Detailed Description

Utility class that makes any derived class non-copyable.

This class makes its instances non-copyable, by explicitely disabling its copy constructor and its assignment operator.

To create a non-copyable class, simply inherit from sf::NonCopyable.

The type of inheritance (public or private) doesn't matter, the copy constructor and assignment operator are declared private in sf::NonCopyable so they will end up being inaccessible in both cases. Thus you can use a shorter syntax for inheriting from it (see below).

Usage example:

class MyNonCopyableClass : sf::NonCopyable
{
...
};

Deciding whether the instances of a class can be copied or not is a very important design choice. You are strongly encouraged to think about it before writing a class, and to use sf::NonCopyable when necessary to prevent many potential future errors when using it. This is also a very important indication to users of your class.

Definition at line 41 of file NonCopyable.hpp.

Constructor & Destructor Documentation

sf::NonCopyable::NonCopyable ( )
inlineprotected

Default constructor.

Because this class has a copy constructor, the compiler will not automatically generate the default constructor. That's why we must define it explicitely.

Definition at line 53 of file NonCopyable.hpp.

The documentation for this class was generated from the following file: