Files
clang-p2996/pstl/test/test_is_partitioned.cpp
Chandler Carruth 57b08b0944 Update more file headers across all of the LLVM projects in the monorepo
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351648
2019-01-19 10:56:40 +00:00

99 lines
3.0 KiB
C++

// -*- C++ -*-
//===-- test_is_partitioned.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
//
//===----------------------------------------------------------------------===//
#include "pstl_test_config.h"
#include "pstl/execution"
#include "pstl/algorithm"
#include "utils.h"
using namespace TestUtils;
struct test_one_policy
{
//dummy specialization by policy type, in case of broken configuration
#if __PSTL_ICC_17_VC141_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN || __PSTL_ICC_16_VC14_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN
template <typename Iterator1, typename Predicate>
void
operator()(pstl::execution::unsequenced_policy, Iterator1 begin1, Iterator1 end1, Predicate pred)
{
}
template <typename Iterator1, typename Predicate>
void
operator()(pstl::execution::parallel_unsequenced_policy, Iterator1 begin1, Iterator1 end1, Predicate pred)
{
}
#endif
template <typename ExecutionPolicy, typename Iterator1, typename Predicate>
void
operator()(ExecutionPolicy&& exec, Iterator1 begin1, Iterator1 end1, Predicate pred)
{
const bool expected = std::is_partitioned(begin1, end1, pred);
const bool actual = std::is_partitioned(exec, begin1, end1, pred);
EXPECT_TRUE(actual == expected, "wrong return result from is_partitioned");
}
};
template <typename T, typename Predicate>
void
test(Predicate pred)
{
const std::size_t max_n = 1000000;
Sequence<T> in(max_n, [](std::size_t k) { return T(k); });
for (std::size_t n1 = 0; n1 <= max_n; n1 = n1 <= 16 ? n1 + 1 : std::size_t(3.1415 * n1))
{
invoke_on_all_policies(test_one_policy(), in.begin(), in.begin() + n1, pred);
std::partition(in.begin(), in.begin() + n1, pred);
invoke_on_all_policies(test_one_policy(), in.cbegin(), in.cbegin() + n1, pred);
}
}
template <typename T>
struct LocalWrapper
{
explicit LocalWrapper(std::size_t k) : my_val(k) {}
private:
T my_val;
};
struct test_non_const
{
template <typename Policy, typename Iterator>
void
operator()(Policy&& exec, Iterator iter)
{
auto is_even = [&](float64_t v) {
uint32_t i = (uint32_t)v;
return i % 2 == 0;
};
invoke_if(exec, [&]() { is_partitioned(exec, iter, iter, non_const(is_even)); });
}
};
int32_t
main()
{
test<float64_t>([](const float64_t x) { return x < 0; });
test<int32_t>([](const int32_t x) { return x > 1000; });
test<uint16_t>([](const uint16_t x) { return x % 5 < 3; });
#if !__PSTL_ICC_18_TEST_EARLY_EXIT_MONOTONIC_RELEASE_BROKEN && !__PSTL_ICC_19_TEST_IS_PARTITIONED_RELEASE_BROKEN
test<LocalWrapper<float64_t>>([](const LocalWrapper<float64_t>& x) { return true; });
#endif
test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const>());
std::cout << done() << std::endl;
return 0;
}