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CDL Constraints Question
- From: Jay Foster <jay at systech dot com>
- To: "'ecos-discuss at ecos dot sourceware dot org'" <ecos-discuss at ecos dot sourceware dot org>
- Date: Wed, 29 Mar 2006 12:03:05 -0800
- Subject: [ECOS] CDL Constraints Question
I have a CDL package that contains a cdl_interface (call it CYGINT_X) and a
boolean cdl_option (call it CYGOPT_X). The cdl_option is only active when
the cdl_interface is implemented (active_if CYGINT_X).
It is valid to have 0, 1, 2, or more implementors of CYGINT_X.
For another cdl_option, I would like to add some kind of constraint
(requires statement?) that does the following:
If the CGYINT_X is implemented by one or more implementors (CYGINT_X
> 0), require CYGOPT_X to be 0 (false).
if the CYGINT_X interface is not implemented, then don't care about
CYGOPT_X (it is not active anyway).
Is it sufficient to just use "requires !CYGOPT_X"? Will this work if
CYGOPT_X is not active?
Jay
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