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CDefaultHashTraits Class

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This class provides a static function for calculating hash values.

Syntax

template<typename T>
class CDefaultHashTraits

Parameters

T
The type of data to be stored in the collection.

Members

Public Methods

Name Description
CDefaultHashTraits::Hash (Static) Call this function to calculate a hash value for a given element.

Remarks

This class contains a single static function that returns a hash value for a given element. This class is utilized by the CDefaultElementTraits Class.

For more information, see ATL Collection Classes.

Requirements

Header: atlcoll.h

CDefaultHashTraits::Hash

Call this function to calculate a hash value for a given element.

static ULONG Hash(const T& element) throw();

Parameters

element
The element.

Return Value

Returns the hash value.

Remarks

The default hashing algorithm is very simple: the return value is the element number. Override this function if a more complicated algorithm is required.

See also

Class Overview