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Re: static variables [message #8887 is a reply to message #2690]

Wed, 30 April 1997 00:00

peter
Messages: 80
Registered: February 1994

Member

Jonathan Rogness (rogness@sg1.cr.usgs.gov) wrote:
: Sorry to answer my own question, but I had forgotten IDL supports global
: variables using Common Blocks. All my training as a programmer tells me
: not to use global vars, but if it works then I guess I can deal with it.
: :-)

Well, you're in luck! Variables in common blocks are not global, merely
static; they have scope only over the functions in which the common
block is declared. This is true even for the main level, the common
block has to be declared there for the variables to exist. In general,
the same name can be reused inside different common blocks, provided
they aren't both used in the same namespace.

Peter

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[Message index]

		STATIC VARIABLES By: sims on Thu, 18 August 1994 08:46
		Re: static variables By: Peter Mason on Tue, 01 October 1996 00:00
		Re: static variables By: Eric Deutsch on Mon, 30 September 1996 00:00
		Re: static variables By: peter on Wed, 30 April 1997 00:00
		Re: static variables By: Jonathan Rogness on Wed, 30 April 1997 00:00

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