sizeinfo.hh

// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_FUNCTIONS_FUNCTIONSPACEBASES_SIZEINFO_HH
#define DUNE_FUNCTIONS_FUNCTIONSPACEBASES_SIZEINFO_HH
 
#include <array>
 
namespace Dune {
namespace Functions {
 
 
 
template<class B>
class SizeInfo
{
public:
    using Basis = B;
    using size_type = typename Basis::size_type;
    using SizePrefix = typename Basis::SizePrefix;
 
    SizeInfo(const Basis& basis) :
        basis_(&basis)
    {}
 
    size_type operator()(const SizePrefix& prefix) const
    {
        return basis_->size(prefix);
    }
 
    size_type size(const SizePrefix& prefix) const
    {
        return basis_->size(prefix);
    }
 
    operator size_type () const
    {
        return basis_->dimension();
    }
 
protected:
 
    const Basis* basis_;
};
 
 
template<class Basis>
SizeInfo<Basis> sizeInfo(const Basis& basis)
{
    return SizeInfo<Basis>(basis);
}
 
 
 
} // end namespace Functions
} // end namespace Dune
 
#endif // DUNE_FUNCTIONS_FUNCTIONSPACEBASES_SIZEINFO_HH