91 lines
3.6 KiB
C++
91 lines
3.6 KiB
C++
/*
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//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 3.0
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// Copyright (2020) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the Corporation nor the names of the
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
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//
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// ************************************************************************
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//@HEADER
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*/
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#include <gtest/gtest.h>
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#include <sstream>
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#include <iostream>
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#include <Kokkos_Core.hpp>
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namespace Test {
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void test_is_specialization_of() {
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using Kokkos::Impl::is_specialization_of;
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static_assert(is_specialization_of<Kokkos::pair<float, int>, Kokkos::pair>{},
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"");
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static_assert(!is_specialization_of<Kokkos::View<int*>, Kokkos::pair>{}, "");
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static_assert(is_specialization_of<Kokkos::View<int*>, Kokkos::View>{}, "");
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// NOTE Not removing cv-qualifiers
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static_assert(!is_specialization_of<Kokkos::View<int*> const, Kokkos::View>{},
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"");
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// NOTE Would not compile because Kokkos::Array takes a non-type template
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// parameter
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// static_assert(is_specialization_of<Kokkos::Array<int, 4>, Kokkos::Array>{},
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// "");
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// But this is fine of course
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static_assert(!is_specialization_of<Kokkos::Array<float, 2>, Kokkos::pair>{},
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"");
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}
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template <std::size_t... Idxs, class... Args>
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std::size_t do_comma_emulation_test(std::integer_sequence<std::size_t, Idxs...>,
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Args... args) {
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// Count the bugs, since ASSERT_EQ is a statement and not an expression
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std::size_t bugs = 0;
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// Ensure in-order evaluation
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std::size_t i = 0;
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KOKKOS_IMPL_FOLD_COMMA_OPERATOR(bugs += std::size_t(Idxs != i++) /*, ...*/);
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// Ensure expansion of multiple packs works
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KOKKOS_IMPL_FOLD_COMMA_OPERATOR(bugs += std::size_t(Idxs != args) /*, ...*/);
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return bugs;
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}
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TEST(utilities, comma_operator_emulation) {
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ASSERT_EQ(0u, do_comma_emulation_test(std::make_index_sequence<5>{}, 0, 1, 2,
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3, 4));
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}
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} // namespace Test
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