dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

Martin Sandve Alnæs wrote:
> Add this as well, and you should be able to use a scalar Constant as
> if it was a double:
>
>     /// Scalar conversion operator
>     operator double() const
>     {
>         if(_size > 1)
>             error("Cannot convert non-scalar Constant to a double.");
>         return _values[0];
>     }

Nice. I didn't know this trick. I've added it.

Garth

> I won't commit this myself since I currently can't compile dolfin,
> it complains about program_options although I have it and use
> it in some syfi demos. Probably the same as someone else
> experienced, but I don't have time to figure it out now.
>
> Martin
>
>
>
> On Thu, May 21, 2009 at 8:23 PM, DOLFIN <dolfin@xxxxxxxxxx> wrote:
> > One or more new changesets pushed to the primary dolfin repository.
> > A short summary of the last three changesets is included below.
> >
> > changeset:   6201:7bc584e24501b34ad40dc19b9e683b925681f5ad
> > tag:         tip
> > user:        "Garth N. Wells <gnw20@xxxxxxxxx>"
> > date:        Thu May 21 19:22:35 2009 +0100
> > files:       demo/mesh/built-in/python/demo.py dolfin/function/Constant.h dolfin/mesh/UnitCircle.cpp
> > description:
> > Permit access to values and size for a Constant.
> >
> > This avoid duplications like
> >
> >  double dt = 1.0;
> >  Constant delta_t(dt);
> >  double T = 100*dt;
> >
> >
> > changeset:   6200:dff601b6ee4aa498c3eda723ae5fba83feebf0fb
> > user:        "Garth N. Wells <gnw20@xxxxxxxxx>"
> > date:        Thu May 21 17:46:52 2009 +0100
> > files:       demo/mesh/built-in/python/demo.py dolfin/mesh/Rectangle.cpp dolfin/mesh/UnitCircle.cpp dolfin/mesh/UnitSquare.cpp
> > description:
> > Fix a few bugs introduced in previous commits.
> >
> >
> > changeset:   6199:cbec89ba60e4e7ef9d7041963b82505ab62f90aa
> > user:        "Garth N. Wells <gnw20@xxxxxxxxx>"
> > date:        Thu May 21 17:16:25 2009 +0100
> > files:       dolfin/mesh/Box.cpp dolfin/mesh/Rectangle.cpp dolfin/mesh/UnitCircle.cpp dolfin/mesh/UnitSphere.cpp dolfin/mesh/UnitSquare.cpp
> > description:
> > Some clean up of built-in meshes.
> >
> > ----------------------------------------------------------------------
> > For more details, visit http://www.fenics.org/hg/dolfin
> > _______________________________________________
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