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Implement PreconditionMG::get_multigrid() #12733

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Sep 3, 2021
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Implement PreconditionMG::get_multigrid() #12733

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28 changes: 28 additions & 0 deletions include/deal.II/multigrid/multigrid.h
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Original file line number Diff line number Diff line change
Expand Up @@ -589,6 +589,18 @@ class PreconditionMG : public Subscriptor
boost::signals2::connection
connect_transfer_to_global(const std::function<void(bool)> &slot);

/**
* Return the Multigrid object passed to the constructor.
*/
Multigrid<VectorType> &
get_multigrid();

/**
* Return the Multigrid object passed to the constructor.
*/
const Multigrid<VectorType> &
get_multigrid() const;

private:
/**
* Associated @p DoFHandler.
Expand Down Expand Up @@ -963,6 +975,22 @@ PreconditionMG<dim, VectorType, TRANSFER>::Tvmult_add(
Assert(false, ExcNotImplemented());
}


template <int dim, typename VectorType, class TRANSFER>
Multigrid<VectorType> &
PreconditionMG<dim, VectorType, TRANSFER>::get_multigrid()
{
return *this->multigrid;
}


template <int dim, typename VectorType, class TRANSFER>
const Multigrid<VectorType> &
PreconditionMG<dim, VectorType, TRANSFER>::get_multigrid() const
{
return *this->multigrid;
}

#endif // DOXYGEN

DEAL_II_NAMESPACE_CLOSE
Expand Down