evaluation_selector.h

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// -----------------------------------------------------------------------------
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception OR LGPL-2.1-or-later
// Copyright (C) 2017 - 2025 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Detailed license information governing the source code and contributions
// can be found in LICENSE.md and CONTRIBUTING.md at the top level directory.
//
// -----------------------------------------------------------------------------
 
 
#ifndef dealii_matrix_free_evaluation_selector_h
#define dealii_matrix_free_evaluation_selector_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/matrix_free/evaluation_flags.h>
#include <deal.II/matrix_free/evaluation_kernels.h>
#include <deal.II/matrix_free/shape_info.h>
 
#include <type_traits>
 
 
DEAL_II_NAMESPACE_OPEN
 
 
 
template <int dim, int fe_degree, int n_q_points_1d, typename Number>
struct SelectEvaluator
{
  static void
  evaluate(const unsigned int                     n_components,
           const EvaluationFlags::EvaluationFlags evaluation_flag,
           const Number                          *values_dofs,
           FEEvaluationData<dim, Number, false>  &eval);
 
  static void
  integrate(const unsigned int                     n_components,
            const EvaluationFlags::EvaluationFlags integration_flag,
            Number                                *values_dofs,
            FEEvaluationData<dim, Number, false>  &eval,
            const bool sum_into_values_array = false);
};
 
//----------------------Implementation for SelectEvaluator---------------------
#ifndef DOXYGEN
 
template <int dim, int fe_degree, int n_q_points_1d, typename Number>
inline void
SelectEvaluator<dim, fe_degree, n_q_points_1d, Number>::evaluate(
  const unsigned int                     n_components,
  const EvaluationFlags::EvaluationFlags evaluation_flag,
  const Number                          *values_dofs,
  FEEvaluationData<dim, Number, false>  &eval)
{
  Assert(fe_degree >= 0 && n_q_points_1d > 0, ExcInternalError());
 
  internal::FEEvaluationImplSelector<dim, Number, false>::template run<
    fe_degree,
    n_q_points_1d>(n_components, evaluation_flag, values_dofs, eval);
}
 
 
 
template <int dim, int fe_degree, int n_q_points_1d, typename Number>
inline void
SelectEvaluator<dim, fe_degree, n_q_points_1d, Number>::integrate(
  const unsigned int                     n_components,
  const EvaluationFlags::EvaluationFlags integration_flag,
  Number                                *values_dofs,
  FEEvaluationData<dim, Number, false>  &eval,
  const bool                             sum_into_values_array)
{
  Assert(fe_degree >= 0 && n_q_points_1d > 0, ExcInternalError());
 
  internal::FEEvaluationImplSelector<dim, Number, true>::
    template run<fe_degree, n_q_points_1d>(
      n_components, integration_flag, values_dofs, eval, sum_into_values_array);
}
#endif // DOXYGEN
 
DEAL_II_NAMESPACE_CLOSE
 
#endif