| Re: Naive pointer question ? [message #28973 is a reply to message #28944] |
Sat, 26 January 2002 13:18   |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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James Kuyper <kuyper@gscmail.gsfc.nasa.gov> writes:
> Craig Markwardt wrote:
> ...
>
>> initialized only once to save CPU cycles. Any time you need a
>> procedure to "remember" something from one call to the next, common
>> blocks are actually a pretty good idea.
>
> However, it often better if it does that remembering in a block of
> memory provided for it by the calling function, and passed in by
> reference as an argument. That way it can remember different things on
> different calls to the same function, by providing it with different
> blocks of memory for each use.
Yes, that can be a good way too, especially when there can be multiple
"sessions."
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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