llvm-project/pstl/test/test_reverse.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

103 lines
3.2 KiB
C++

// -*- C++ -*-
//===-- test_reverse.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 <iterator>
#include "pstl/execution"
#include "pstl/algorithm"
#include "utils.h"
using namespace TestUtils;
struct test_one_policy
{
#if __PSTL_ICC_18_VC141_TEST_SIMD_LAMBDA_RELEASE_BROKEN || __PSTL_ICC_17_VC141_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN || \
__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 std::enable_if<is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
operator()(pstl::execution::unsequenced_policy, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b,
Iterator2 actual_e)
{
}
template <typename Iterator1, typename Iterator2>
typename std::enable_if<is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
operator()(pstl::execution::parallel_unsequenced_policy, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b,
Iterator2 actual_e)
{
}
#endif
template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
typename std::enable_if<!is_same_iterator_category<Iterator1, std::forward_iterator_tag>::value>::type
operator()(ExecutionPolicy&& exec, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b, Iterator2 actual_e)
{
using namespace std;
copy(data_b, data_e, actual_b);
reverse(exec, actual_b, actual_e);
bool check = equal(data_b, data_e, reverse_iterator<Iterator2>(actual_e));
EXPECT_TRUE(check, "wrong result of reverse");
}
template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
typename std::enable_if<is_same_iterator_category<Iterator1, std::forward_iterator_tag>::value>::type
operator()(ExecutionPolicy&& exec, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b, Iterator2 actual_e)
{
}
};
template <typename T>
void
test()
{
const std::size_t max_len = 100000;
Sequence<T> actual(max_len);
Sequence<T> data(max_len, [](std::size_t i) { return T(i); });
for (std::size_t len = 0; len < max_len; len = len <= 16 ? len + 1 : std::size_t(3.1415 * len))
{
invoke_on_all_policies(test_one_policy(), data.begin(), data.begin() + len, actual.begin(),
actual.begin() + len);
}
}
template <typename T>
struct wrapper
{
T t;
wrapper() {}
explicit wrapper(T t_) : t(t_) {}
bool
operator==(const wrapper<T>& a) const
{
return t == a.t;
}
};
int32_t
main()
{
test<int32_t>();
test<uint16_t>();
test<float64_t>();
#if !__PSTL_ICC_17_TEST_MAC_RELEASE_32_BROKEN
test<wrapper<float64_t>>();
#endif
std::cout << done() << std::endl;
return 0;
}