Class TCardinality

class TCardinality;

Description

Compact stream format for positive integer values in the range 0 to 536,870,911 ((2^29)-1). Values in the range 0-127 are stored in a single byte, 128-16383 in two bytes and other values in 4 bytes.

The class provides conversion to and from TInt, and both externalization and internalization functions. It is used to significant effect within Symbian code.

Members

Defined in TCardinality:

• ExternalizeL(RWriteStream &)constExternalises this object to a write stream.
• InternalizeL(RReadStream &)Internalizes this object from a read stream.
• TCardinality()
• TCardinality(TInt)Constructs the object with the specified value.
• operator TInt()const

inline TCardinality();

Description

inline TCardinality(TInt aCount);

Description

Constructs the object with the specified value.

Parameters

TInt aCount The value for this object.

inline operator TInt() const;

Description

Return value

IMPORT_C void ExternalizeL(RWriteStream &aStream) const;

Description

Externalises this object to a write stream.

The existence of this function means that the standard templated operator<<(RWriteStream &,const T &) can be used to externalise objects of this class.

Parameters

RWriteStream &aStream Stream to which the object should be externalised.

IMPORT_C void InternalizeL(RReadStream &aStream);

Description

Internalizes this object from a read stream.

The existence of this function means that the standard templated operator>>(RReadStream &,T &) can be used to internalise objects of this class.

Parameters

RReadStream &aStream Stream store from which the objet is to be internalised.