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Re: Warning: IDL 8.0 alters the behaviour of existing valid programs without any notice! [message #72243 is a reply to message #72181]

Fri, 20 August 2010 04:42

svhhaugan
Messages: 8
Registered: August 2010

Junior Member

On Aug 19, 9:35 pm, Chris <beaum...@hawaii.edu> wrote:

> In reality, how many people actually use CATCH to handle the case of a
> failed call to where?

As I *did* point out, the CATCH was not a very likely thing
to be used in real life, it was only for illustrational
purposes, in real life there would just be an informative
error message and the command line (i.e. a crash) so you could
explore what/where/why it went wrong. It's an interactive data
language: relying on things to crash is *not* a bug if that's
what you want to happen.

> not checking the result of where is a bug.

No. Nope. Says who? Where? It isn't. Not in IDL 7.

Nor is it a bug in IDL 8, as other people have pointed out, b/c
you can do data[where(...,/null)] = 0, that's not a bug, is it?

Crashing is not a bug, if that's what you want your program to do in
certain cases. So, a program can be bug-free under IDL 7, yet
buggy when run under IDL 8.

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[Message index]

		Warning: IDL 8.0 alters the behaviour of existing valid programs without any notice! By: svhhaugan on Wed, 18 August 2010 04:59
		Re: Warning: IDL 8.0 alters the behaviour of existing valid programs without any notice! By: Chris[7] on Fri, 20 August 2010 14:57
		Re: Warning: IDL 8.0 alters the behaviour of existing valid programs without any notice! By: Karl[1] on Fri, 20 August 2010 09:44
		Re: Warning: IDL 8.0 alters the behaviour of existing valid programs without any notice! By: svhhaugan on Fri, 20 August 2010 04:42
		Re: Warning: IDL 8.0 alters the behaviour of existing valid programs without any notice! By: Timm Weitkamp on Tue, 24 August 2010 14:15

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