Ase::Persistent< Class > Class Template Reference

Create an instance of Class on demand that is constructed and never destructed. More...

#include "cxxaux.hh"

Public Member Functions
constexpr	Persistent () noexcept
	A constexpr constructor avoids the static initialization order fiasco.
	operator bool () const __attribute__((__pure__))
	Check if this stores a Class instance yet.
Class &	operator* () __attribute__((__pure__))
	Retrieve reference to Class instance, always returns the same reference.
Class *	operator-> () __attribute__((__pure__))
	Retrieve pointer to Class instance, always returns the same pointer.

Detailed Description

template<class Class>
class Ase::Persistent< Class >

Create an instance of Class on demand that is constructed and never destructed.

Due to its constexpr ctor and on-demand creation of Class, a Persistent<> can be accessed at any time during the static ctor (or dtor) phases and will always yield a properly initialized Class.

Definition at line 374 of file cxxaux.hh.

Constructor & Destructor Documentation

Persistent()

template<class Class >

constexpr Ase::Persistent< Class >::Persistent ( )

constexprnoexcept

A constexpr constructor avoids the static initialization order fiasco.

Definition at line 388 of file cxxaux.hh.

Member Function Documentation

operator bool()

template<class Class >

Ase::Persistent< Class >::operator bool ( ) const

explicit

Check if this stores a Class instance yet.

Definition at line 390 of file cxxaux.hh.

operator*()

template<class Class >

Class & Ase::Persistent< Class >::operator*

(

)

Retrieve reference to Class instance, always returns the same reference.

Definition at line 392 of file cxxaux.hh.

References Ase::Persistent< Class >::operator->().

operator->()

template<class Class >

Class * Ase::Persistent< Class >::operator->

(

)

Retrieve pointer to Class instance, always returns the same pointer.

Definition at line 394 of file cxxaux.hh.

References ASE_UNLIKELY.

Referenced by Ase::Persistent< Class >::operator*().

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

• ase/cxxaux.hh