TIdentityRelation< T > Class Template Reference

A templated class which packages a function that determines whether two objects of a given class type match. More...

#include <e32cmn.h>

Public Member Functions
	TIdentityRelation ()
	Constructs the object to use the equality operator (==) defined for class T to determine whether two class T type objects match.
	TIdentityRelation (TBool(*anIdentity)(const T &, const T &))
	Constructs the object taking the specified function as an argument.
	operator TGeneralIdentityRelation () const
	Operator that gets the function that determines whether two objects of a given class type match.

Detailed Description

template<class T>
class TIdentityRelation< T >

A templated class which packages a function that determines whether two objects of a given class type match.

During linear search operations the search term is always passed as the first argument and the second argument is an element of the array being searched.

A TIdentityRelation<T> object is constructed and passed as a parameter to member functions of the array classes RArray<T> and RPointerArray<T>.

See also

RArray

RPointerArray

API status

Published to all clients. Released API.

Definition at line 5427 of file e32cmn.h.

Constructor & Destructor Documentation

TIdentityRelation() [1/2]

template<class T >

TIdentityRelation< T >::TIdentityRelation ( )

inline

Constructs the object to use the equality operator (==) defined for class T to determine whether two class T type objects match.

(generated from Symbian Developer Library)

TIdentityRelation() [2/2]

template<class T >

TIdentityRelation< T >::TIdentityRelation ( TBool(*)(const T &, const T &)  anIdentity )

inline

Constructs the object taking the specified function as an argument.

The specified function should implement an algorithm for determining whether two class T type objects match. It should return:

1. true, if the two objects match.
2. false, if the two objects do not match.

Parameters

anIdentity

A pointer to a function that takes constant references to two class T objects and returns a TInt value.

(generated from Symbian Developer Library)

Member Function Documentation

operator TGeneralIdentityRelation()

template<class T >

TIdentityRelation< T >::operator TGeneralIdentityRelation ( ) const

inline

Operator that gets the function that determines whether two objects of a given class type match.

(generated from Symbian Developer Library)

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

• e32cmn.h
• e32cmn.h.dox