SFML - Simple and Fast Multimedia Library

SFML 2.6.1

- Main Page
- Related Pages
- Topics
- Namespaces
- Classes
- Files

- Class List
- Class Index
- Class Hierarchy
- Class Members

Loading...
Searching...
No Matches
Protected Member Functions | List of all members
sf::NonCopyable Class Reference
System module

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

`#include <SFML/System/NonCopyable.hpp>`

Inheritance diagram for sf::NonCopyable:

## Protected Member Functions
| NonCopyable ()
| Default constructor.
| ~NonCopyable ()
| Default destructor.

## Detailed Description

Utility class that makes any derived class non-copyable.

This class makes its instances non-copyable, by explicitly 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
{
...
};
sf::NonCopyable
Utility class that makes any derived class non-copyable.
Definition NonCopyable.hpp:42

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

## ◆ NonCopyable()

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 explicitly.

Definition at line 53 of file NonCopyable.hpp.

## ◆ ~NonCopyable()

sf::NonCopyable::~NonCopyable | ( |  | ) |
| inlineprotected

Default destructor.

By declaring a protected destructor it's impossible to call delete on a pointer of sf::NonCopyable, thus preventing possible resource leaks.

Definition at line 63 of file NonCopyable.hpp.

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

- NonCopyable.hpp