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- Description:
This routine ends an AST context which was
begun with a matching invocation of AST_BEGIN. Any Object
pointers created within this context will be annulled (just as
if AST_ANNUL had been invoked) and will cease to be valid
afterwards, unless they have previously been exported using
AST_EXPORT or rendered exempt using AST_EXEMPT.
If annulling a pointer causes an Object's RefCount attribute to
fall to zero (which happens when the last pointer to it is
annulled), then the Object will be deleted.
- Invocation:
CALL AST_END( STATUS )
- Arguments:
-
STATUS = INTEGER (Given and Returned)
-
The global status.
- Class Applicability:
-
Object
-
This routine applies to all Objects.
- Notes:
-
This routine attempts to execute even if STATUS is set to an
error value.
-
Contexts delimited by AST_BEGIN and AST_END may be nested to any
depth.
Next: AST_EXEMPT - Exempt an Object pointer from AST context handling
Up: AST Routine Descriptions
Previous: AST_DISTANCE - Calculate the distance between two points in a Frame
AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 210
R.F. Warren-Smith & D.S. Berry
30th April 2003
E-mail:ussc@star.rl.ac.uk
Copyright (C) 2003 Central Laboratory of the Research Councils