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RefCount - Count of active Object pointers

Description:
This attribute gives the number of active pointers associated with an Object. It is modified whenever pointers are created or annulled (by AST_CLONE, AST_ANNUL or AST_END for example). The count includes the initial pointer issued when the Object was created.

If the reference count for an Object falls to zero as the result of annulling a pointer to it, then the Object will be deleted.

Type:
Integer, read-only.
Class Applicability:
Object
All Objects have this attribute.


next up previous 264
Next: RefDec - The declination of the reference point
Up: AST Attribute Descriptions
Previous: Projection - Sky projection description

AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 210
R.F. Warren-Smith & D.S. Berry
24th May 2011
E-mail:ussc@star.rl.ac.uk

Copyright (C) 2009 Science \& Technology Facilities Council