57b08b0944
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
132 lines
3.1 KiB
C++
132 lines
3.1 KiB
C++
// -*- C++ -*-
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//===-- test_swap_ranges.cpp ----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "pstl_test_config.h"
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#include <iterator>
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#include "pstl/execution"
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#include "pstl/algorithm"
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#include "utils.h"
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using namespace TestUtils;
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template <typename T>
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struct wrapper
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{
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T t;
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std::size_t number_of_swaps = 0;
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wrapper() {}
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explicit wrapper(T t_) : t(t_) {}
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template <typename U>
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void
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operator=(const U& b)
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{
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t = b;
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}
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bool
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operator==(const wrapper<T>& a) const
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{
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return t == a.t;
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}
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};
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template <typename T>
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void
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swap(wrapper<T>& a, wrapper<T>& b)
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{
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std::swap(a.t, b.t);
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a.number_of_swaps++;
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b.number_of_swaps++;
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}
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template <typename T>
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struct check_swap
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{
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bool
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operator()(T& a)
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{
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return true;
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}
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};
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template <typename T>
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struct check_swap<wrapper<T>>
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{
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bool
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operator()(wrapper<T>& a)
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{
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bool temp = (a.number_of_swaps == 1);
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a.number_of_swaps = 0;
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return temp;
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}
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};
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struct test_one_policy
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{
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template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
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void
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operator()(ExecutionPolicy&& exec, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b, Iterator2 actual_e)
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{
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using namespace std;
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using T_ref = typename iterator_traits<Iterator1>::reference;
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using T = typename iterator_traits<Iterator1>::value_type;
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iota(data_b, data_e, 0);
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iota(actual_b, actual_e, std::distance(data_b, data_e));
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Iterator2 actual_return = swap_ranges(exec, data_b, data_e, actual_b);
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bool check_return = (actual_return == actual_e);
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EXPECT_TRUE(check_return, "wrong result of swap_ranges");
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if (check_return)
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{
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std::size_t i = 0;
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bool check = all_of(actual_b, actual_e, [&i](T_ref a) { return a == T(i++); }) &&
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all_of(data_b, data_e, [&i](T_ref a) { return a == T(i++); });
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EXPECT_TRUE(check, "wrong effect of swap_ranges");
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if (check)
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{
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bool swap_check =
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all_of(data_b, data_e, check_swap<T>()) && all_of(actual_b, actual_e, check_swap<T>());
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EXPECT_TRUE(swap_check, "wrong effect of swap_ranges swap check");
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}
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}
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}
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};
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template <typename T>
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void
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test()
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{
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const std::size_t max_len = 100000;
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Sequence<T> data(max_len);
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Sequence<T> actual(max_len);
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for (std::size_t len = 0; len < max_len; len = len <= 16 ? len + 1 : std::size_t(3.1415 * len))
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{
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invoke_on_all_policies(test_one_policy(), data.begin(), data.begin() + len, actual.begin(),
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actual.begin() + len);
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}
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}
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int32_t
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main()
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{
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test<wrapper<uint16_t>>();
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test<wrapper<float64_t>>();
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test<int32_t>();
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test<float32_t>();
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std::cout << done() << std::endl;
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return 0;
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}
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