OSObject protocols

This section describes the protocols supported by OSObject.

Instance methods

castTo:

Answer a new instance of anOSObjectClass, which is initialized to refer to the same data as the receiver using the appropriate indirection level.

isOSObject

Answer true if the receiver is an OSObject or one of its subclasses.

isUndefined

Answer true if the receiver has no value.

makeUndefined

Make the receiver undefined. OSObject and PlatformFunction primitives fail when used with an undefined OSObject.

Class methods: initialization

fixedSize

Answer an integer that is the size in bytes of one data element of the receiver.

fixedSize: anInteger

Set an integer that is the size in bytes of one data element of the receiver. This value must be set before using an instance of the receiver.

Class methods: instance creation

undefined

Answer an undefined instance of the receiver.