dolfin team mailing list archive

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

Anders Logg wrote:
> On Mon, Dec 22, 2008 at 03:13:57PM +0100, Harish Narayanan wrote:
> > On Mon, Dec 22, 2008 at 12:42 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:   5434:d8bb5b439227b34030db2c7682da63a1841924c5
> > > tag:         tip
> > > user:        "Garth N. Wells <gnw20@xxxxxxxxx>"
> > > date:        Mon Dec 22 11:41:53 2008 +0000
> > > files:       dolfin/io/VTKFile.cpp
> > > description:
> > > Change test for cell-based data in VTKFile.
> > >
> > > The previous test failed for DG elements of order k > 0.
> > I am unable to compile DOLFIN on my machine with this changeset. I
> > receive the following "ambiguous call to pow()" error.
> >
> > dolfin/io/VTKFile.cpp: In member function 'void
> > dolfin::VTKFile::ResultsWrite(const dolfin::Function&) const':
> > dolfin/io/VTKFile.cpp:189: error: call of overloaded
> > 'pow(dolfin::uint, const dolfin::uint&)' is ambiguous
> > /usr/include/architecture/i386/math.h:352: note: candidates are:
> > double pow(double, double)
> > /usr/include/c++/4.0.0/cmath:344: note:                 float
> > std::pow(float, float)
> > /usr/include/c++/4.0.0/cmath:348: note:                 long double
> > std::pow(long double, long double)
> > /usr/include/c++/4.0.0/cmath:352: note:                 double
> > std::pow(double, int)
> > /usr/include/c++/4.0.0/cmath:356: note:                 float
> > std::pow(float, int)
> > /usr/include/c++/4.0.0/cmath:360: note:                 long double
> > std::pow(long double, int)
> > scons: *** [dolfin/io/VTKFile.os] Error 1
> > scons: building terminated because of errors.
> >
> > Harish
>
> I've made an attempt to fix it, see if it works.

I don't think that this fixes the problem. To make it work, the I think 
that mesh.topology().dim() need to be cast. The result won't be an 
unsigned integer, so I've made a change to avoid using std::pow.

Garth

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