7.6 The Object structure

Currency

Specification:

exception Currency

Description:

This exception is raised upon an attempt to perform some action upon an object when the association between object and foreign data is assumed to be corrupt or invalid.

The notion of data corruption or validity is naturally dependent upon the interpretation placed on the semantics of the data model of the language being interfaced with. In general, an object is assumed not current if it has just been moved, relocated or otherwise changed without its language-dependent interpretation (that is, its 'type') having been adjusted accordingly.

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