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//@HEADER
// ************************************************************************
//
// Kokkos v. 4.0
// Copyright (2022) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
// See https://kokkos.org/LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//@HEADER
#include <TestStdAlgorithmsCommon.hpp>
#include <algorithm>
namespace Test {
namespace stdalgos {
namespace Count {
namespace KE = Kokkos::Experimental;
template <class ViewType>
void test_count(const ViewType view) {
using value_t = typename ViewType::value_type;
using view_host_space_t = Kokkos::View<value_t*, Kokkos::HostSpace>;
view_host_space_t expected("count_expected", view.extent(0));
compare_views(expected, view);
{
const value_t count_value = 0;
const auto std_result =
std::count(KE::cbegin(expected), KE::cend(expected), count_value);
ASSERT_EQ(view.extent(0), size_t(std_result));
// pass const iterators
ASSERT_EQ(std_result, KE::count(exespace(), KE::cbegin(view),
KE::cend(view), count_value));
// pass view
ASSERT_EQ(std_result, KE::count(exespace(), view, count_value));
}
{
const value_t count_value = 13;
const auto std_result =
std::count(KE::cbegin(expected), KE::cend(expected), count_value);
// pass iterators
ASSERT_EQ(std_result, KE::count("label", exespace(), KE::begin(view),
KE::end(view), count_value));
// pass view
ASSERT_EQ(std_result, KE::count("label", exespace(), view, count_value));
}
}
template <class ViewType>
void test_count_if(const ViewType view) {
using value_t = typename ViewType::value_type;
using view_host_space_t = Kokkos::View<value_t*, Kokkos::HostSpace>;
view_host_space_t expected("count_expected", view.extent(0));
compare_views(expected, view);
// no positive elements (all zeroes)
const auto predicate = IsPositiveFunctor<value_type>();
ASSERT_EQ(0,
std::count_if(KE::begin(expected), KE::end(expected), predicate));
// pass iterators
ASSERT_EQ(
0, KE::count_if(exespace(), KE::begin(view), KE::end(view), predicate));
// pass view
ASSERT_EQ(0, KE::count_if(exespace(), view, predicate));
fill_views_inc(view, expected);
const auto std_result =
std::count_if(KE::begin(expected), KE::end(expected), predicate);
// pass const iterators
ASSERT_EQ(std_result, KE::count_if("label", exespace(), KE::cbegin(view),
KE::cend(view), predicate));
// pass view
ASSERT_EQ(std_result, KE::count_if("label", exespace(), view, predicate));
}
template <class Tag, class ValueType>
void run_all_scenarios() {
for (const auto& scenario : default_scenarios) {
{
auto view = create_view<ValueType>(Tag{}, scenario.second, "count");
test_count(view);
}
{
auto view = create_view<ValueType>(Tag{}, scenario.second, "count");
test_count_if(view);
}
}
}
TEST(std_algorithms_count_test, test) {
run_all_scenarios<DynamicTag, double>();
run_all_scenarios<StridedTwoTag, int>();
run_all_scenarios<StridedThreeTag, unsigned>();
}
} // namespace Count
} // namespace stdalgos
} // namespace Test
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