copy_move.pass.cpp
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// -*- C++ -*-
//===-- copy_move.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++98, c++03, c++11, c++14
// Tests for copy, move and copy_n
#include "support/pstl_test_config.h"
#include <execution>
#include <algorithm>
#include "support/utils.h"
using namespace TestUtils;
struct run_copy
{
#if _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 InputIterator, typename OutputIterator, typename OutputIterator2, typename Size, typename T>
void
operator()(pstl::execution::unsequenced_policy, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size size,
Size n, T trash)
{
}
template <typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size, typename T>
void
operator()(pstl::execution::parallel_unsequenced_policy, InputIterator first, InputIterator last,
OutputIterator out_first, OutputIterator out_last, OutputIterator2 expected_first,
OutputIterator2 expected_last, Size size, Size n, T trash)
{
}
#endif
template <typename Policy, typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size,
typename T>
void
operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size size, Size n, T trash)
{
// Cleaning
std::fill_n(expected_first, size, trash);
std::fill_n(out_first, size, trash);
// Run copy
copy(first, last, expected_first);
auto k = copy(exec, first, last, out_first);
for (size_t j = 0; j < GuardSize; ++j)
++k;
EXPECT_EQ_N(expected_first, out_first, size, "wrong effect from copy");
EXPECT_TRUE(out_last == k, "wrong return value from copy");
// Cleaning
std::fill_n(out_first, size, trash);
// Run copy_n
k = copy_n(exec, first, n, out_first);
for (size_t j = 0; j < GuardSize; ++j)
++k;
EXPECT_EQ_N(expected_first, out_first, size, "wrong effect from copy_n");
EXPECT_TRUE(out_last == k, "wrong return value from copy_n");
}
};
template <typename T>
struct run_move
{
#if _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 InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
void
operator()(pstl::execution::unsequenced_policy, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size size,
Size n, T trash)
{
}
template <typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
void
operator()(pstl::execution::parallel_unsequenced_policy, InputIterator first, InputIterator last,
OutputIterator out_first, OutputIterator out_last, OutputIterator2 expected_first,
OutputIterator2 expected_last, Size size, Size n, T trash)
{
}
#endif
template <typename Policy, typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
void
operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size size, Size, T trash)
{
// Cleaning
std::fill_n(expected_first, size, trash);
std::fill_n(out_first, size, trash);
// Run move
move(first, last, expected_first);
auto k = move(exec, first, last, out_first);
for (size_t j = 0; j < GuardSize; ++j)
++k;
EXPECT_EQ_N(expected_first, out_first, size, "wrong effect from move");
EXPECT_TRUE(out_last == k, "wrong return value from move");
}
};
template <typename T>
struct run_move<Wrapper<T>>
{
#if _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 InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
void
operator()(pstl::execution::unsequenced_policy, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size size,
Size n, Wrapper<T> trash)
{
}
template <typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
void
operator()(pstl::execution::parallel_unsequenced_policy, InputIterator first, InputIterator last,
OutputIterator out_first, OutputIterator out_last, OutputIterator2 expected_first,
OutputIterator2 expected_last, Size size, Size n, Wrapper<T> trash)
{
}
#endif
template <typename Policy, typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
void
operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator2, OutputIterator2, Size size, Size, Wrapper<T> trash)
{
// Cleaning
std::fill_n(out_first, size, trash);
Wrapper<T>::SetMoveCount(0);
// Run move
auto k = move(exec, first, last, out_first);
for (size_t j = 0; j < GuardSize; ++j)
++k;
EXPECT_TRUE(Wrapper<T>::MoveCount() == size, "wrong effect from move");
EXPECT_TRUE(out_last == k, "wrong return value from move");
}
};
template <typename T, typename Convert>
void
test(T trash, Convert convert)
{
// Try sequences of various lengths.
for (size_t n = 0; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
// count is number of output elements, plus a handful
// more for sake of detecting buffer overruns.
Sequence<T> in(n, [&](size_t k) -> T {
T val = convert(n ^ k);
return val;
});
const size_t outN = n + GuardSize;
Sequence<T> out(outN, [=](size_t) { return trash; });
Sequence<T> expected(outN, [=](size_t) { return trash; });
invoke_on_all_policies(run_copy(), in.begin(), in.end(), out.begin(), out.end(), expected.begin(),
expected.end(), outN, n, trash);
invoke_on_all_policies(run_copy(), in.cbegin(), in.cend(), out.begin(), out.end(), expected.begin(),
expected.end(), outN, n, trash);
invoke_on_all_policies(run_move<T>(), in.begin(), in.end(), out.begin(), out.end(), expected.begin(),
expected.end(), n, n, trash);
// For this test const iterator isn't suitable
// because const rvalue-reference call copy assignment operator
}
}
int
main()
{
test<int32_t>(-666, [](size_t j) { return int32_t(j); });
test<Wrapper<float64_t>>(Wrapper<float64_t>(-666.0), [](int32_t j) { return Wrapper<float64_t>(j); });
#if !_PSTL_ICC_16_17_TEST_64_TIMEOUT
test<float64_t>(-666.0, [](size_t j) { return float64_t(j); });
test<Number>(Number(42, OddTag()), [](int32_t j) { return Number(j, OddTag()); });
#endif
std::cout << done() << std::endl;
return 0;
}