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Re: another IDL oddity [message #65171]

Tue, 17 February 2009 08:12

Carsten Lechte
Messages: 124
Registered: August 2006

Senior Member

Bringfried Stecklum wrote:

> from bash
>> echo my_procedure,'Hello.world'|idl

bash is eating the quotation marks, so IDL only sees the naked Hello.world
which generates an error if a variable named hello is undefined or not
a structure.

echo my_procedure,\'Hello.world\'|idl

should work.

> Any hints?

IDL seems to check parameters for procedure calls before compiling the
procedure. An undefined parameter is treated as a named variable and
simply handed on to the procudure, while the attempt to access an
undefined variable's structural tags throws an error immediately, since
there is no result that can be passed to the procedure.

Was that your question?

chl

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[Message index]

		Re: another IDL oddity By: Carsten Lechte on Tue, 17 February 2009 08:12
		Re: another IDL oddity By: Foldy Lajos on Tue, 17 February 2009 08:06

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