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// -*- C++ -*-
//===-- find_end.pass.cpp -------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
#include "support/pstl_test_config.h"
#include <execution>
#include <algorithm>
#include "support/utils.h"
using namespace TestUtils;
struct test_one_policy
{
#if defined(_PSTL_ICC_17_VC141_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN) || \
defined(_PSTL_ICC_16_VC14_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN) //dummy specialization by policy type, in case of broken configuration
template <typename Iterator1, typename Iterator2, typename Predicate>
void
operator()(pstl::execution::unsequenced_policy, Iterator1 b, Iterator1 e, Iterator2 bsub, Iterator2 esub,
Predicate pred)
{
}
template <typename Iterator1, typename Iterator2, typename Predicate>
void
operator()(pstl::execution::parallel_unsequenced_policy, Iterator1 b, Iterator1 e, Iterator2 bsub, Iterator2 esub,
Predicate pred)
{
}
#endif
template <typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename Predicate>
void
operator()(ExecutionPolicy&& exec, Iterator1 b, Iterator1 e, Iterator2 bsub, Iterator2 esub, Predicate pred)
{
using namespace std;
// For find_end
{
auto expected = find_end(b, e, bsub, esub, pred);
auto actual = find_end(exec, b, e, bsub, esub);
EXPECT_TRUE(actual == expected, "wrong return result from find_end");
actual = find_end(exec, b, e, bsub, esub, pred);
EXPECT_TRUE(actual == expected, "wrong return result from find_end with a predicate");
}
// For search
{
auto expected = search(b, e, bsub, esub, pred);
auto actual = search(exec, b, e, bsub, esub);
EXPECT_TRUE(actual == expected, "wrong return result from search");
actual = search(exec, b, e, bsub, esub, pred);
EXPECT_TRUE(actual == expected, "wrong return result from search with a predicate");
}
}
};
template <typename T>
void
test(const std::size_t bits)
{
const std::size_t max_n1 = 1000;
const std::size_t max_n2 = (max_n1 * 10) / 8;
Sequence<T> in(max_n1, [bits](std::size_t) { return T(2 * HashBits(max_n1, bits - 1) ^ 1); });
Sequence<T> sub(max_n2, [bits](std::size_t) { return T(2 * HashBits(max_n1, bits - 1)); });
for (std::size_t n1 = 0; n1 <= max_n1; n1 = n1 <= 16 ? n1 + 1 : size_t(3.1415 * n1))
{
std::size_t sub_n[] = {0, 1, 3, n1, (n1 * 10) / 8};
std::size_t res[] = {0, 1, n1 / 2, n1};
for (auto n2 : sub_n)
{
for (auto r : res)
{
std::size_t i = r, isub = 0;
for (; i < n1 && isub < n2; ++i, ++isub)
in[i] = sub[isub];
invoke_on_all_policies(test_one_policy(), in.begin(), in.begin() + n1, sub.begin(), sub.begin() + n2,
std::equal_to<T>());
invoke_on_all_policies(test_one_policy(), in.cbegin(), in.cbegin() + n1, sub.cbegin(),
sub.cbegin() + n2, std::equal_to<T>());
}
}
}
}
template <typename T>
struct test_non_const
{
template <typename Policy, typename FirstIterator, typename SecondInterator>
void
operator()(Policy&& exec, FirstIterator first_iter, SecondInterator second_iter)
{
invoke_if(exec, [&]() {
find_end(exec, first_iter, first_iter, second_iter, second_iter, non_const(std::equal_to<T>()));
search(exec, first_iter, first_iter, second_iter, second_iter, non_const(std::equal_to<T>()));
});
}
};
int
main()
{
test<int32_t>(8 * sizeof(int32_t));
test<uint16_t>(8 * sizeof(uint16_t));
test<float64_t>(53);
#if !defined(_PSTL_ICC_16_17_TEST_REDUCTION_BOOL_TYPE_RELEASE_64_BROKEN)
test<bool>(1);
#endif
test_algo_basic_double<int32_t>(run_for_rnd_fw<test_non_const<int32_t>>());
std::cout << done() << std::endl;
return 0;
}
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