[aravis] Re: Evaluator problem
- From: <tom.cobb@xxxxxxxxxxxxx>
- To: <aravis@xxxxxxxxxxxxx>
- Date: Wed, 1 Aug 2012 14:43:16 +0000
Ok, found the problem, but need help with the solution:
--- src/arvevaluator.c (revision 80561)
+++ src/arvevaluator.c (working copy)
@@ -888,7 +888,7 @@
status =
ARV_EVALUATOR_STATUS_PARENTHESES_MISMATCH;
goto CLEANUP;
}
- arv_evaluator_token_free (token);
+ //arv_evaluator_token_free (token);
arv_evaluator_token_free (operator_stack->data);
operator_stack = g_slist_delete_link
(operator_stack, operator_stack);
} else {
This arv_evaluator_token_free is freeing token, which is passed (as
previous_token) to arv_get_next_token. This causes
arv_evaluator_token_is_right_parenthesis(previous_token) to return False, which
causes "+" to be interpreted as a unary plus instead of a binary plus, causing
our remaining operands error. There is a similar arv_evaluator_token_free in
the code dealing with ",". Not quite sure where we should free this token, but
I guess it needs to be delayed!
Thanks,
Tom
> -----Original Message-----
> From: aravis-bounce@xxxxxxxxxxxxx [mailto:aravis-bounce@xxxxxxxxxxxxx]
> On Behalf Of tom.cobb@xxxxxxxxxxxxx
> Sent: 01 August 2012 14:11
> To: aravis@xxxxxxxxxxxxx
> Subject: [aravis] Evaluator problem
>
> Hi,
>
> I've been trying out a new camera, and I get an error from
> arv_evaluator:
>
> [Evaluator::evaluate_as_int64] Expression = '(BINNING &
> 0x00060000)=0?((TO & 0xFF)+1):1'
> (BINNING & 0x00060000)=0?((TO & 0xFF)+1):1
> [Evaluator::evaluate_as_int64] Parsing status = 0
> (var) BINNING = 0
> (int64) 393216
> (operator) &
> (int64) 0
> (operator) =
> (var) TO = 0
> (int64) 255
> (operator) &
> (int64) 1
> (operator) plus
> (int64) 1
> (operator) :
> (operator) ?
> [Evaluator::evaluate] Error 'remaining operands'
>
> Any idea what's going on here?
>
> Thanks,
> Tom
>
>
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please notify us of receipt by returning the e-mail and do not use, copy,
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Any opinions expressed within this e-mail are those of the individual and not
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Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments
are free from viruses and we cannot accept liability for any damage which you
may sustain as a result of software viruses which may be transmitted in or with
the message.
Diamond Light Source Limited (company no. 4375679). Registered in England and
Wales with its registered office at Diamond House, Harwell Science and
Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
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