Re: !ERR and MPFIT

[davidf(at)dfanning.com (David Fanning)]

Craig Markwardt (craigmnet@cow.physics.wisc.edu) writes:

> * to everybody: any suggestions on how to generically signal an error
>    condition?  My thoughts were:
> 
>      - ERROR keyword variable - don't like this, since then the
>        function has to accept keywords
> 
>      - define a new system variable - don't like this either, since
>        it's hard to do system variables right
> 
>      - common block variable - not very pretty, but gets the job done.
> 
> To be clear, this is some kind of error flag that a user routine would
> (optionally!) set to signal an abnormal termination condition.  Right
> now I am leaning toward the common-block approach.  Sorry David.

Oh, I like it. And to tell you the truth, this might
be the *perfect* situation for a common block. Just
don't be putting 'em in a widget program! :-)

Cheers,

David

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