/*
//@HEADER
// ************************************************************************
//
//                        Kokkos v. 2.0
//              Copyright (2020) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
//
// ************************************************************************
//@HEADER
*/

#include "ctest_common.hpp"

#include <experimental/mdspan>

#include <type_traits>

namespace stdex = std::experimental;

//==============================================================================
// <editor-fold desc="extents"> {{{1

MDSPAN_STATIC_TEST(
  sizeof(stdex::extents<size_t,1, 2, stdex::dynamic_extent>) == sizeof(ptrdiff_t)
);

MDSPAN_STATIC_TEST(
  sizeof(stdex::extents<size_t,stdex::dynamic_extent>) == sizeof(ptrdiff_t)
);

MDSPAN_STATIC_TEST(
  sizeof(stdex::extents<size_t,stdex::dynamic_extent, stdex::dynamic_extent>) == 2 * sizeof(ptrdiff_t)
);

MDSPAN_STATIC_TEST(
  sizeof(stdex::extents<size_t,stdex::dynamic_extent, 1, 2, 45>) == sizeof(ptrdiff_t)
);

MDSPAN_STATIC_TEST(
  sizeof(stdex::extents<size_t,45, stdex::dynamic_extent, 1>) == sizeof(ptrdiff_t)
);

MDSPAN_STATIC_TEST(
  std::is_empty<stdex::extents<size_t,1, 2, 3>>::value
);

MDSPAN_STATIC_TEST(
  std::is_empty<stdex::extents<size_t,42>>::value
);

// </editor-fold> end extents }}}1
//==============================================================================

//==============================================================================
// <editor-fold desc="layouts"> {{{1

MDSPAN_STATIC_TEST(
  sizeof(stdex::layout_left::template mapping<
    stdex::extents<size_t,42, stdex::dynamic_extent, 73>
  >) == sizeof(size_t)
);

#if defined(__GNUC__) && (__GNUC__>8)
MDSPAN_STATIC_TEST(
  std::is_empty<stdex::layout_right::template mapping<
    stdex::extents<size_t,42, 123, 73>
  >>::value
);
#endif

MDSPAN_STATIC_TEST(
  sizeof(stdex::layout_stride::template mapping<
    stdex::extents<size_t,42, stdex::dynamic_extent, 73>
  >) == 4 * sizeof(size_t)
);


// </editor-fold> end layouts }}}1
//==============================================================================


