none_of.pass.cpp
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// -*- C++ -*-
//===-- none_of.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
#include "support/pstl_test_config.h"
#include <execution>
#include <algorithm>
#include "support/utils.h"
/*
TODO: consider implementing the following tests for a better code coverage
- correctness
- bad input argument (if applicable)
- data corruption around/of input and output
- correctly work with nested parallelism
- check that algorithm does not require anything more than is described in its requirements section
*/
using namespace TestUtils;
struct test_none_of
{
template <typename ExecutionPolicy, typename Iterator, typename Predicate>
void
operator()(ExecutionPolicy&& exec, Iterator begin, Iterator end, Predicate pred, bool expected)
{
auto actualr = std::none_of(exec, begin, end, pred);
EXPECT_EQ(expected, actualr, "result for none_of");
}
};
template <typename T>
void
test(size_t bits)
{
for (size_t n = 0; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
// Sequence of odd values
Sequence<T> in(n, [n, bits](size_t) { return T(2 * HashBits(n, bits - 1) ^ 1); });
// Even value, or false when T is bool.
T spike(2 * HashBits(n, bits - 1));
invoke_on_all_policies(test_none_of(), in.begin(), in.end(), is_equal_to<T>(spike), true);
invoke_on_all_policies(test_none_of(), in.cbegin(), in.cend(), is_equal_to<T>(spike), true);
if (n > 0)
{
// Sprinkle in a hit
in[2 * n / 3] = spike;
invoke_on_all_policies(test_none_of(), in.begin(), in.end(), is_equal_to<T>(spike), false);
invoke_on_all_policies(test_none_of(), in.cbegin(), in.cend(), is_equal_to<T>(spike), false);
// Sprinkle in a few more hits
in[n / 3] = spike;
in[n / 2] = spike;
invoke_on_all_policies(test_none_of(), in.begin(), in.end(), is_equal_to<T>(spike), false);
invoke_on_all_policies(test_none_of(), in.cbegin(), in.cend(), is_equal_to<T>(spike), false);
}
}
}
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;
};
none_of(exec, iter, iter, non_const(is_even));
}
};
int
main()
{
test<int32_t>(8 * sizeof(int32_t));
test<uint16_t>(8 * sizeof(uint16_t));
test<float64_t>(53);
#if !_PSTL_ICC_16_17_TEST_REDUCTION_BOOL_TYPE_RELEASE_64_BROKEN
test<bool>(1);
#endif
test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const>());
std::cout << done() << std::endl;
return 0;
}