standard.hh

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// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
#ifndef DUNE_COMMON_SIMD_STANDARD_HH
#define DUNE_COMMON_SIMD_STANDARD_HH

#include <cstddef>
#include <type_traits>
#include <utility>

#include <dune/common/indices.hh>
#include <dune/common/simd/base.hh>
#include <dune/common/simd/defaults.hh>

namespace Dune {
  namespace Simd {

    namespace Overloads {


      template<class V, class>
      struct ScalarType { using type = V; };


      template<class S, class, class>
      struct RebindType { using type = S; };


      template<class, class>
      struct LaneCount : public index_constant<1> { };


      template<class V>
      V lane(ADLTag<2>, std::size_t, V v)
      {
        return v;
      }

      template<class V>
      V &lane(ADLTag<3>, std::size_t, V &v)
      {
        return v;
      }

      // No Simd::cond() implementation, the overload for bool masks in the
      // interface is sufficient

      inline bool anyTrue(ADLTag<2>, bool mask) { return mask; }

      inline bool allTrue(ADLTag<2>, bool mask) { return mask; }

      inline bool anyFalse(ADLTag<2>, bool mask) { return !mask; }

      inline bool allFalse(ADLTag<2>, bool mask) { return !mask; }


    } // namespace Overloads
  } // namespace Simd
} // namespace Dune

#endif // DUNE_COMMON_SIMD_STANDARD_HH