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delvar v/s reset_session [message #22099]

Mon, 23 October 2000 00:00

kashyap
Messages: 26
Registered: April 1993

Junior Member

Puzzle: Somehow, using .RESET_SESSION in between DELVARs seems
to confuse the IDL environment. Now, I believe using DELVAR
inside even a main program is frowned upon (I don't know why),
but this seems very bizarre.

Here's a simple test program:

> cat test.pro
a=1 & b=2 & c=3
print,a,b,c
delvar,a,b
end

and running it repeatedly, resetting the session in between,
quickly starts producing garbage. Whose fault is this --
DELVAR's, .RESET_SESSION's, or mine?

IDL> print,!version
{ sparc sunos unix 5.3 Nov 11 1999}
IDL> .run test
% Compiled module: $MAIN$.
1 2 3
IDL> .reset_session
IDL> .run test
% Compiled module: $MAIN$.
1 3 3
IDL> .reset_session
IDL> .run test
% Compiled module: $MAIN$.
3 2 3
% Internal error: Deleting variable.
% Execution halted at: $MAIN$ 4 /fubar/SCAR/pro/.undone/test.pro
IDL>

Any idea what's going on?

Thanks,
Vinay

--
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kashyap@head-cfa.harvard.edu 617 495 7173 [CfA/P-146] 617 496 7173 [F]

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[Message index]

		delvar v/s reset_session By: kashyap on Mon, 23 October 2000 00:00
		Re: delvar v/s reset_session By: kashyap on Wed, 25 October 2000 00:00

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