StrictSingleton< T > Class Template Reference

Singleton design pattern: only one instance is allowed. More...

#include <Singleton.h>

Static Public Member Functions
static T *	instance ()
	Retrieve the instance. More...

Detailed Description

template<class T>
class StrictSingleton< T >

Singleton design pattern: only one instance is allowed.

The StrictSingleton has the following constraints:

• only one instance allowed
• the instance cannot be overwritten
• the instance is created by the StrictSingleton on first use (lazy-instantiation)
• user-class must provide a default constructor without parameters

Definition at line 39 of file Singleton.h.

Member Function Documentation

instance()

template<class T >

static T* StrictSingleton< T >::instance ( )

inlinestatic

Retrieve the instance.

Note that we use a static initializer here, which makes use of the __cxa_guard_acquire and __cxa_guard_release functions in order to guarantee the object is only initialized once.

See also

__cxa_guard_acquire

__cxa_guard_release

Definition at line 53 of file Singleton.h.

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

• lib/libstd/Singleton.h