Bruce,

>Is there any reason to use a #DEFINEd constant instead of a local var? I've seen it done, but am not aware if the rationale, particularly when trying to debug...

You talk about #DEFINE used in ordinary code ? so not about headerfiles are you ?

IMHO you only use locals when they can change during runtime. If they don't you can:

- use hardcoded values
- use #DEFINE if this value applies to more than one instance in code, so maintainability is increased.

Walter,