DGtal::concepts::CPredicate< T, TElement > Struct Template Reference
Aim: Defines a predicate function, ie. a functor mapping a domain into the set of booleans. More...
#include <DGtal/base/CPredicate.h>
Inheritance diagram for DGtal::concepts::CPredicate< T, TElement >:
Public Types | |
| typedef TElement | Element |
Private Attributes | |
| T | myPred |
| Element | myElement |
| bool | myBool |
Additional Inherited Members | |
 Public Member Functions inherited from DGtal::concepts::CUnaryFunctor< T, TElement, bool > | |
| BOOST_CONCEPT_USAGE (CUnaryFunctor) | |
Detailed Description
template<typename T, typename TElement>
struct DGtal::concepts::CPredicate< T, TElement >
Aim: Defines a predicate function, ie. a functor mapping a domain into the set of booleans.
Description of concept 'CPredicate'
- Template Parameters
-
T the type that should be a model of this predicate TElement the type of an element of the predicate domain.
Refinement of
Associated types
Notation
- X : A type that is a model of CPredicate
- x : Object of type X
- p : Object of type TElement
Definitions
Valid expressions and semantics
| Name | Expression | Type requirements | Return type | Precondition | Semantics | Post condition | Complexity |
|---|---|---|---|---|---|---|---|
| Apply predicate | x.( p ) | bool | the value of the predicate x at element p |
Invariants
Models
- specializations: concepts::CPointPredicate, concepts::CVertexPredicate
Notes
CPredicate allows to factor codes when writing concepts for new kinds of predicates.
Definition at line 93 of file CPredicate.h.
Member Typedef Documentation
◆ Element
template<typename T , typename TElement >
| typedef TElement DGtal::concepts::CPredicate< T, TElement >::Element |
Definition at line 97 of file CPredicate.h.
Field Documentation
◆ myBool
template<typename T , typename TElement >
|
private |
Definition at line 103 of file CPredicate.h.
◆ myElement
template<typename T , typename TElement >
|
private |
Definition at line 102 of file CPredicate.h.
◆ myPred
template<typename T , typename TElement >
|
private |
Definition at line 101 of file CPredicate.h.
The documentation for this struct was generated from the following file:
