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astExport - Export an Object pointer to an outer context

Description:
This function exports an Object pointer from the current AST context into the context that encloses the current one. This means that the pointer will no longer be annulled when the current context is ended (with astEnd), but only when the next outer context (if any) ends.

Synopsis:
void astExport( AstObject *this )

Parameters:
this
Object pointer to be exported.

Class Applicability:
Object
This function applies to all Objects.

Notes:
  • It is only sensible to apply this function to pointers that have been created within (or exported to) the current context and have not been rendered exempt using astExempt. Applying it to an unsuitable Object pointer has no effect.



next up previous
Next: astFindFits - Find a FITS card in a FitsChan by keyword
Up: AST Function Descriptions
Previous: astExempt - Exempt an Object pointer from AST context handling

AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 211
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