* Re: [ECOS] Can't use expressions in ecos.ecc any more?
[not found] ` <200012131523.eBDFNrm20122@sheesh.cambridge.redhat.com>
@ 2000-12-13 7:33 ` Grant Edwards
2000-12-13 7:38 ` Lewin A.R.W. Edwards
1 sibling, 0 replies; 2+ messages in thread
From: Grant Edwards @ 2000-12-13 7:33 UTC (permalink / raw)
To: Bart Veer; +Cc: ecos-discuss
On Wed, Dec 13, 2000 at 03:23:54PM +0000, Bart Veer wrote:
>
> Grant> Didn't expressions in ecos.ecc used to work?
>
> Grant> $ ecosconfig tree
> Grant> C CYGNUM_MEMALLOC_FALLBACK_MALLOC_POOL_SIZE, Illegal current value 128*1024
> Grant> Legal values are: 32 to 0x7fffffff
>
> No. You can have expressions in the original CDL, but the code for
> reading back savefiles has never supported expressions.
>
> It is possible that a particular value is never referenced by other
> active CDL expressions. For example, if there were no constraints on
> CYGNUM_MEMALLOC_FALLBACK_MALLOC_POOL_SIZE then you could type in
> "128*1024", and in the generated header file you would end up with:
>
> #define CYGNUM_MEMALLOC_FALLBACK_MALLOC_POOL_SIZE 128*1024
>
> For much code this would just work.
That must have been what happened. I'd been using expressions
(just too lazy, I guess) for a couple things with 1.3.1, and
they generated errors with the CVS tree. It's certainly not
worth any extra effort to get it to work.
--
Grant Edwards
grante@visi.com
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ECOS] Can't use expressions in ecos.ecc any more?
[not found] ` <200012131523.eBDFNrm20122@sheesh.cambridge.redhat.com>
2000-12-13 7:33 ` [ECOS] Can't use expressions in ecos.ecc any more? Grant Edwards
@ 2000-12-13 7:38 ` Lewin A.R.W. Edwards
1 sibling, 0 replies; 2+ messages in thread
From: Lewin A.R.W. Edwards @ 2000-12-13 7:38 UTC (permalink / raw)
To: bartv, grante; +Cc: ecos-discuss
> Grant> C CYGNUM_MEMALLOC_FALLBACK_MALLOC_POOL_SIZE, Illegal current
> value 128*1024
> Grant> Legal values are: 32 to 0x7fffffff
>
>No. You can have expressions in the original CDL, but the code for
>reading back savefiles has never supported expressions.
Will the current code reliably error for expressions? It could be a bad
source of confusion if certain expressions are interpreted as simple values
(e.g. 0).
=== Lewin A.R.W. Edwards (Embedded Engineer)
Work: http://www.digi-frame.com/
Personal: http://www.zws.com/ and http://www.larwe.com/
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[not found] ` <200012131523.eBDFNrm20122@sheesh.cambridge.redhat.com>
2000-12-13 7:33 ` [ECOS] Can't use expressions in ecos.ecc any more? Grant Edwards
2000-12-13 7:38 ` Lewin A.R.W. Edwards
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