mpqc::detail::ForceLink< T, A > Class Template Reference

Collaboration diagram for mpqc::detail::ForceLink< T, A >:

Documentation

template<class T, class A = const KeyVal&>
class mpqc::detail::ForceLink< T, A >

This, together with ForceLinkBase, is used to force code for particular classes to be linked into executables.

Note

Objects of classes derived from DescribedClass can be created from KeyVal input and/or checkpoint files by using class name lookup to find that class's entry in the constructor registry. Unfortunately, linking in a library that defines such a class doesn't cause the code for the class to be linked. To force linking of class T derived from DescribedClass create an object of class ForceLink<T> in the main executable. This is most conveniently done by having every library define such objects in its linkage.h file; the main executable then includes all linkage.h files from the libraries that it needs.

Only a declaration of class T is needed to define an object of type ForceLink<T>; this is key to avoiding instantiation of class T in the executable. Nevertheless, it is necessary to define ForceLink<T>::create in the library somewhere, usually in a file called linkage.cpp ; this file usually also contains constructor registration macros.

See also

MPQC_FORCELINK_KEYVAL_CTOR

Public Member Functions
	ForceLink ()
virtual	~ForceLink ()
DescribedClass *	create (A a)
Public Member Functions inherited from mpqc::detail::ForceLinkBase< const KeyVal & >
	ForceLinkBase ()
virtual	~ForceLinkBase ()
virtual DescribedClass *	create (const KeyVal &)=0

Constructor & Destructor Documentation

ForceLink()

template<class T , class A = const KeyVal&>

mpqc::detail::ForceLink< T, A >::ForceLink ( )

inline

~ForceLink()

template<class T , class A = const KeyVal&>

virtual mpqc::detail::ForceLink< T, A >::~ForceLink ( )

inlinevirtual

Member Function Documentation

create()

template<class T , class A = const KeyVal&>

DescribedClass* mpqc::detail::ForceLink< T, A >::create

(

A

a

)

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

• mpqc/util/keyval/forcelink.h