dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Jul 08, 2008 at 10:07:10PM +0200, Ola Skavhaug wrote:
> Anders Logg skrev den 08/07-2008 følgende:
> > On Tue, Jul 08, 2008 at 09:35:15AM +0200, Ola Skavhaug wrote:
> > > Could we add a default constructor to Parameter, e.g., letting it default to
> > > int or similar? This will make it possible to wrap it with SWIG. The current
> > > state of SWIG will declare variables like this (depending on where
> > > Parameter lives in the argument list):
> > > 
> > > Parameter arg3;
> > > 
> > > This fails due to the lack of default constructor for Parameter. I don't know
> > > how to get around this silly SWIG behaviour.
> > > 
> > > Ola
> > 
> > We could add a default constructor for an int parameter named
> > "undefined" with value 0 or similar. Parameter is never used directly
> > by a user anyway (since it will be cast automatically to the
> > underlying type). 
> 
> I don't see how naming the parameter "undefined" would help, since 0 should be
> a valid interger option. Except from that, I follow.

I'm just saying if there's a default constructor, then there must be a
default name for that Parameter. We need to pick something, like
"undefined" or "none".

-- 
Anders


> I have made some improvements to the SLEPc eigenvalue solver, making it
> possible to set tolerance and max iter from dolfin. Another thing we should
> consider is making it possible to specify the problem type, EPS_HEP, EPS_NHEP,
> EPS_GHEP, or EPS_GNHEP (or so).
> 
> Ola
>  
> > -- Anders
> 
> 
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