coco::prep_id_eval Class Reference
[Evaluators]

Preparation Evaluator for interval derivatives. More...

#include <ider_evaluator.h>

Inheritance diagram for coco::prep_id_eval:

Inheritance graph
[legend]
Collaboration diagram for coco::prep_id_eval:

Collaboration graph
[legend]

List of all members.

Public Types

typedef _Base::node_data_type node_data_type
typedef _Base::return_value return_value
typedef _Base::const_walker const_walker
typedef std::vector
< std::vector< interval > > * 
data_type

Public Member Functions

 prep_id_eval (std::vector< std::vector< interval > > &__d, unsigned int _num_of_nodes)
 prep_id_eval (const prep_id_eval &__x)
 ~prep_id_eval ()
bool is_cached (const expression_node &__data)
int initialize (const expression_node &__data)
int preorder (const node_data_type &__data)
void postorder (const node_data_type &__data)
int collect (const node_data_type &__data, const return_value &__rval)
int vcollect (const return_value &__rval)
return_value value ()
return_value vvalue ()
void vinit ()
virtual void cleanup (const node_data_type &__data)
virtual int update (const node_data_type &__data, const return_value &__rval)
virtual int update (const return_value &__rval)
virtual const_walker short_cut_to (const node_data_type &__data)
void retrieve_from_cache (const expression_node &__data)
void initialize ()
void calculate (const expression_node &__data)
int update (bool __rval)
int update (const expression_node &__data, bool __rval)
bool calculate_value (bool eval_all)

Protected Attributes

const variable_indicatorv_ind
std::vector< std::vector
< interval > > * 
eval_data


Detailed Description

This evaluator is used to prepare the data structure needed for computing interval derivatives on a DAG. For a given DAG this evaluator need only be used once. It is a cached forward evaluator.

Definition at line 63 of file ider_evaluator.h.


Member Typedef Documentation

This is the type of the walker, which is used for the short-cuts.

Reimplemented from coco::cached_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 723 of file evaluator.h.

typedef std::vector< std::vector< interval > > * coco::_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::data_type [inherited]

The data_type specifies the type of the internal data of the evaluator.

Definition at line 305 of file evaluator.h.

The node_data_type is the datatype of the nodes of the graph.

Reimplemented from coco::cached_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 719 of file evaluator.h.

This type is the result type of the evaluator.

Reimplemented from coco::cached_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 721 of file evaluator.h.


Constructor & Destructor Documentation

coco::prep_id_eval::prep_id_eval ( std::vector< std::vector< interval > > &  __d,
unsigned int  _num_of_nodes 
) [inline]

Constructor, which takes __d as interval derivative data structure which is to be prepared, and the number of nodes _num_of_nodes of the DAG.

Definition at line 76 of file ider_evaluator.h.

coco::prep_id_eval::prep_id_eval ( const prep_id_eval __x  )  [inline]

Standard Copy Constructor

Definition at line 86 of file ider_evaluator.h.

coco::prep_id_eval::~prep_id_eval (  )  [inline]

Standard Destructor

Definition at line 89 of file ider_evaluator.h.


Member Function Documentation

void coco::prep_id_eval::calculate ( const expression_node __data  )  [inline, virtual]

The retrieve_from_cache, initialize, calculate, calculate_value, and update methods are basically NOP versions.

Reimplemented from coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool, expression_const_walker >.

Definition at line 112 of file ider_evaluator.h.

bool coco::prep_id_eval::calculate_value ( bool  eval_all  )  [inline, virtual]

The retrieve_from_cache, initialize, calculate, calculate_value, and update methods are basically NOP versions.

Reimplemented from coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool, expression_const_walker >.

Definition at line 119 of file ider_evaluator.h.

virtual void coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::cleanup ( const node_data_type __data  )  [inline, virtual, inherited]

The cleanup method is called just before calculate_value and should be used to clean up dynamically allocated data. The __data parameter contains the node data of the graph node being visited.

Definition at line 804 of file evaluator.h.

int coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::collect ( const node_data_type __data,
const return_value &  __rval 
) [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called for each normal node everytime a child node has been visited passing the return value of the child. It is translated to a call to update.

Reimplemented from coco::_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 750 of file evaluator.h.

void coco::prep_id_eval::initialize (  )  [inline, virtual]

The retrieve_from_cache, initialize, calculate, calculate_value, and update methods are basically NOP versions.

Reimplemented from coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool, expression_const_walker >.

Definition at line 110 of file ider_evaluator.h.

int coco::prep_id_eval::initialize ( const expression_node __data  )  [inline, virtual]

bool coco::prep_id_eval::is_cached ( const expression_node __data  )  [inline, virtual]

Check whether this node has already been visited

Reimplemented from coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool, expression_const_walker >.

Definition at line 92 of file ider_evaluator.h.

void coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::postorder ( const node_data_type __data  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right after all children of a node have been visited. It is translated into calls to calculate and cleanup.

Reimplemented from coco::_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 744 of file evaluator.h.

int coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::preorder ( const node_data_type __data  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right before any children of a node are visited. It checks whether the result of this node is cached and calls either retrieve_from_cache and stops the downwards walk or calls initialize.

Reimplemented from coco::cached_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 732 of file evaluator.h.

void coco::prep_id_eval::retrieve_from_cache ( const expression_node __data  )  [inline, virtual]

The retrieve_from_cache, initialize, calculate, calculate_value, and update methods are basically NOP versions.

Reimplemented from coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool, expression_const_walker >.

Definition at line 108 of file ider_evaluator.h.

virtual const_walker coco::cached_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::short_cut_to ( const node_data_type __data  )  [inline, virtual, inherited]

The short_cut_to method is called whenever a short-cut is signalled during the graph walk, and the const_walker returned is the target of the short-cut.

Definition at line 450 of file evaluator.h.

virtual int coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::update ( const return_value &  __rval  )  [inline, virtual, inherited]

The update method is called for each virtual node everytime a child node has been visited passing the return value of the child. The __data parameter contains the node data of the graph node being visited. The return value has the following effect:
<0stop visiting children of this node,
0continue with the graph walk downwards the next child,
>0skip as many children.

Definition at line 826 of file evaluator.h.

virtual int coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::update ( const node_data_type __data,
const return_value &  __rval 
) [inline, virtual, inherited]

The update method is called for each virtual node everytime a child node has been visited passing the return value of the child. The return value has the following effect:
<0stop visiting children of this node,
0continue with the graph walk downwards the next child,
>0skip as many children.

Definition at line 814 of file evaluator.h.

int coco::prep_id_eval::update ( const expression_node __data,
bool  __rval 
) [inline]

The retrieve_from_cache, initialize, calculate, calculate_value, and update methods are basically NOP versions.

Definition at line 116 of file ider_evaluator.h.

int coco::prep_id_eval::update ( bool  __rval  )  [inline]

The retrieve_from_cache, initialize, calculate, calculate_value, and update methods are basically NOP versions.

Definition at line 114 of file ider_evaluator.h.

return_value coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::value (  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right before the end of the visit of a normal node to retrieve the return value. It is translated to a call to calculate_value with parameter false.

Reimplemented from coco::_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 762 of file evaluator.h.

int coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::vcollect ( const return_value &  __rval  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called for each virtual node everytime a child node has been visited passing the return value of the child. It is translated to a call to update.

Reimplemented from coco::_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 756 of file evaluator.h.

void coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::vinit (  )  [inline, inherited]

This method is needed by a visitor using recursive_short_cut_walk for traversing the graph. It is called before performing any graph walk when at a virtual node. It is translated to initialize.

Definition at line 771 of file evaluator.h.

return_value coco::cached_forward_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::vvalue (  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right before the end of the visit of a virtual node to retrieve the return value. It is translated to a call to calculate_value with parameter true.

Reimplemented from coco::_evaluator_base< std::vector< std::vector< interval > > *, expression_node, bool,expression_const_walker >.

Definition at line 767 of file evaluator.h.


Member Data Documentation

std::vector< std::vector< interval > > * coco::_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::eval_data [protected, inherited]

The internal data of the evaluator

Definition at line 316 of file evaluator.h.

const variable_indicator* coco::cached_evaluator_base< std::vector< std::vector< interval > > * , expression_node , bool , expression_const_walker >::v_ind [protected, inherited]

For caching a variable indicator is needed to check which nodes need not be re-evaluated.

Definition at line 427 of file evaluator.h.


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

Generated on Tue Feb 9 14:48:49 2010 for COCONUT API by  doxygen 1.5.8