[dune-functions] More build failures

[Carsten Gräser]

Am 17.09.2015 um 11:38 schrieb Steffen Müthing:
> Hi Oliver,
> 
>> Am 17.09.2015 um 10:55 schrieb Oliver Sander <oliver.sander at tu-dresden.de>:
>>
>> Hi guys,
>> I still can't build the stokes-taylorhood example, neither with gcc-4.9.3 nor with clang-3.4.
>> Here is what clang has to say.  Any help would be appreciated.
>> Best,
>> Oliver
> 
> oh good, those child() member functions really are a nightmare to get right…
Can't we then simply drop the member functions in favor of the global
ones? You can't use them any-way in most cases, because they don't work
on the leaf nodes.

Best,
Carsten

> 
> I built in a check to make sure they aren’t used incorrectly after your bug report for PDELab,
> but that check was a little over-eager and failed in other case. I hope it’s finally all working
> now…
> 
> Best,
> Steffen
> 
>>
>> /home/sander/dune/dune-functions/examples/stokes-taylorhood.cc:241:35: warning: suggest braces around initialization of subobject [-Wmissing-braces]
>>  std::array<int,dim> elements = {4, 4};
>>                                  ^~~~
>>                                  {   }
>> In file included from /home/sander/dune/dune-functions/examples/stokes-taylorhood.cc:22:
>> In file included from /home/sander/dune/dune-functions/dune/functions/functionspacebases/pqknodalbasis.hh:14:
>> In file included from /home/sander/dune/dune-functions/dune/functions/functionspacebases/gridviewfunctionspacebasis.hh:7:
>> In file included from /home/sander/dune/dune-functions/dune/functions/functionspacebases/nodes.hh:6:
>> /home/sander/dune/dune-typetree/dune/typetree/compositenode.hh:195:43: error: no matching function for call to 'treePathSize'
>>        static_assert(sizeof...(I) > 0 || treePathSize(i0) > 0,
>>                                          ^~~~~~~~~~~~
>> /home/sander/dune/dune-functions/dune/functions/functionspacebases/taylorhoodbasis.hh:232:32: note: in instantiation of function template specialization
>> 'Dune::TypeTree::CompositeNode<Dune::Functions::TaylorHoodVelocityTree<Dune::GridView<Dune::DefaultLeafGridViewTraits<const Dune::YaspGrid<2, Dune::EquidistantCoordinates<double, 2> >, 4> >, unsigned
>> long, Dune::TypeTree::HybridTreePath<std::integral_constant<unsigned long, 0> > >, Dune::Functions::PQkNode<Dune::GridView<Dune::DefaultLeafGridViewTraits<const Dune::YaspGrid<2,
>> Dune::EquidistantCoordinates<double, 2> >, 4> >, 1, unsigned long, Dune::TypeTree::HybridTreePath<std::integral_constant<unsigned long, 1> > > >::child<std::integral_constant<unsigned long, 0>, int>'
>> requested here
>>    pq2NodeIndexSet_.bind(node.child(_0, 0));
>>                               ^
>> /home/sander/dune/dune-functions/dune/functions/functionspacebases/defaultlocalindexset.hh:41:19: note: in instantiation of member function
>> 'Dune::Functions::TaylorHoodNodeIndexSet<Dune::GridView<Dune::DefaultLeafGridViewTraits<const Dune::YaspGrid<2, Dune::EquidistantCoordinates<double, 2> >, 4> >, std::array<unsigned long, 2>,
>> Dune::TypeTree::HybridTreePath<>, unsigned long>::bind' requested here
>>    nodeIndexSet_.bind(localView_->tree());
>>                  ^
>> /home/sander/dune/dune-functions/examples/stokes-taylorhood.cc:199:19: note: in instantiation of member function
>> 'Dune::Functions::DefaultLocalIndexSet<Dune::Functions::DefaultLocalView<Dune::Functions::DefaultGlobalBasis<Dune::Functions::TaylorHoodNodeFactory<Dune::GridView<Dune::DefaultLeafGridViewTraits<const
>> Dune::YaspGrid<2, Dune::EquidistantCoordinates<double, 2> >, 4> >, std::array<unsigned long, 2>, unsigned long> > >,
>> Dune::Functions::TaylorHoodNodeIndexSet<Dune::GridView<Dune::DefaultLeafGridViewTraits<const Dune::YaspGrid<2, Dune::EquidistantCoordinates<double, 2> >, 4> >, std::array<unsigned long, 2>,
>> Dune::TypeTree::HybridTreePath<>, unsigned long> >::bind' requested here
>>    localIndexSet.bind(localView);
>>                  ^
>> /home/sander/dune/dune-functions/examples/stokes-taylorhood.cc:277:3: note: in instantiation of function template specialization
>> 'assembleStokesProblem<Dune::Functions::DefaultGlobalBasis<Dune::Functions::TaylorHoodNodeFactory<Dune::GridView<Dune::DefaultLeafGridViewTraits<const Dune::YaspGrid<2,
>> Dune::EquidistantCoordinates<double, 2> >, 4> >, std::array<unsigned long, 2>, unsigned long> > >' requested here
>>  assembleStokesProblem(taylorHoodBasis, stiffnessMatrix);
>>  ^
>> /home/sander/dune/dune-typetree/dune/typetree/treepath.hh:45:27: note: candidate template ignored: could not match 'TreePath' against 'integral_constant'
>>    constexpr std::size_t treePathSize(const TreePath<i...>&)
>>                          ^
>> /home/sander/dune/dune-typetree/dune/typetree/treepath.hh:372:27: note: candidate template ignored: could not match 'HybridTreePath' against 'integral_constant'
>>    constexpr std::size_t treePathSize(const HybridTreePath<T...>&)
>>                          ^
>> /home/sander/dune/dune-functions/examples/stokes-taylorhood.cc:47:55: error: no matching member function for call to 'child'
>>  auto& velocityLocalFiniteElement = localView.tree().child(_0,0).finiteElement();


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