[PPL-devel] ppl/src Grid.defs.hh

[Matthew Mundell]

This change should have been part of the following commit
(http://www.cs.unipr.it/pipermail/ppl-devel/2005-April/005914.html),
to which most of the comment pertains.

Matthew Mundell <mundell at cs.unipr.it> writes:

> CVSROOT:	/cvs/ppl
> Module name:	ppl
> Branch: 	grids
> Changes by:	mundell at cs.unipr.it	2005-04-21 11:51:46
>
> Modified files:
> 	src            : Grid.defs.hh
>
> Log message:
> 	Return a bool from update_congruences and simplify to indicate whether
> 	the grid is empty.  Pass this return on in the minimize and
> 	add_and_minimize methods which call simplify.  Assert an equal number
> 	of columns in the sources in the congruence to generator
> 	add_and_minimize\5.
>
> Patches:
> http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/src/Grid.defs.hh.diff?cvsroot=ppl&only_with_tag=grids&r1=1.1.2.2&r2=1.1.2.3
>
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