expression_tree::cache_on_assignment< T, ThreadingPolicy >::branch Class Reference

Implementation of a branch class that performs caching on assignment of its children. More...

#include <expression_tree.h>

Inheritance diagram for expression_tree::cache_on_assignment< T, ThreadingPolicy >::branch:

Collaboration diagram for expression_tree::cache_on_assignment< T, ThreadingPolicy >::branch:

Public Member Functions
	branch (const typename detail::operation< T >::t &f, const node< T, expression_tree::cache_on_assignment, ThreadingPolicy > &l, const node< T, expression_tree::cache_on_assignment, ThreadingPolicy > &r)
	Default constructor.
	branch (const branch &o)
	Copy constructor.
virtual T	evaluate () const
	If the value of this branch has been cached already, return it.
virtual void	grow ()
Public Member Functions inherited from expression_tree::detail::default_branch< T, expression_tree::cache_on_assignment, ThreadingPolicy >
	default_branch (const typename operation< T >::t &f, const node< T, expression_tree::cache_on_assignment, ThreadingPolicy > &l, const node< T, expression_tree::cache_on_assignment, ThreadingPolicy > &r)
	Constructor.
	default_branch (const default_branch< T, expression_tree::cache_on_assignment, ThreadingPolicy > &other)
	Copy constructor.
virtual std::unique_ptr < node_impl< T > >	clone () const
	Clones this object.
virtual bool	constant () const
	The constness of a branch is determined by the constness of its children.
virtual node< T, expression_tree::cache_on_assignment, ThreadingPolicy > &	left ()
	This branch's left child.
virtual node< T, expression_tree::cache_on_assignment, ThreadingPolicy > &	right ()
	This branch's right child.

Additional Inherited Members
Public Attributes inherited from expression_tree::detail::default_branch< T, expression_tree::cache_on_assignment, ThreadingPolicy >
node< T, expression_tree::cache_on_assignment, ThreadingPolicy >	l
	This branch's left child.
node< T, expression_tree::cache_on_assignment, ThreadingPolicy >	r
	This branch's right child.
operation< T >::t	f
	Operation to be applied to this node's children.

Detailed Description

template<typename T, class ThreadingPolicy>
class expression_tree::cache_on_assignment< T, ThreadingPolicy >::branch

Implementation of a branch class that performs caching on assignment of its children.

When a caching-on-assignment branch' children are assigned to, the branch checks whether its children are constant. If they are, it applies its operation on them and caches that value.

Member Function Documentation

template<typename T , class ThreadingPolicy >

virtual void expression_tree::cache_on_assignment< T, ThreadingPolicy >::branch::grow ( )

inlinevirtual

When this branch has its children modified, check if they are constant. If they are, perform the operation and cache the value.

Reimplemented from expression_tree::detail::default_branch< T, expression_tree::cache_on_assignment, ThreadingPolicy >.

---

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

• include/expression_tree.h