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Re: Structures and COMMON blocks [message #6001]

Tue, 16 April 1996 00:00

plugge
Messages: 17
Registered: May 1995

Junior Member

In article <316ADC7A.41C6@irc.chmcc.org>, Phil Williams <williams@irc.chmcc.org> writes:
|>I'm developing several widget based apps and have a question concerning
|>the use of structures and common blocks.
|>
|>I have found both of these invaluable, but the problem comes when I want
|>to add a variable to a common block or structure. When I try to
|>recompile the .pro file idl won't let me. Is there another way to do
|>this other than quitting IDL and starting it over?
|>
Phil,
there is no way to enlarge a named common block; but there is a trick to do
it. I use often dummy variables at the end of a block (for example:

COMMON block, var1,var2,var3,v1,v2,v3,v4

where v1,v2,v3,v4 are (unused) dummy variables; if you need an additional
variable in the common block, you can just rename one of these dummies, without
need to exit the current IDL session.

Michel

------------------------------------------------------------ -------------
Michael Plugge _ Fachhochschule Mannheim
Institute for Statistics / \ Hochschule fuer Technik und Gestaltung
and Image Processing / \ Email: plugge@biv7.sr.fh-mannheim.de
Speyerer Str. 4 / \ Tel: 0621 2926208
68163 Mannheim / \ --o /\
Germany / -- - \<,- / \/\
/ \ (_)/ (_) / \/\
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[Message index]

		Re: Structures and COMMON blocks By: plugge on Tue, 16 April 1996 00:00
		Re: Structures and COMMON blocks By: C.V.Nieuwenhuize on Wed, 10 April 1996 00:00
		Re: Structures and COMMON blocks By: Ken Knighton on Wed, 10 April 1996 00:00

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