remove.pass.cpp
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// -*- C++ -*-
//===-- remove.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
// Test for remove, remove_if
#include "support/pstl_test_config.h"
#include <execution>
#include <algorithm>
#include "support/utils.h"
using namespace TestUtils;
struct run_remove
{
#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 Size, typename T>
void
operator()(pstl::execution::unsequenced_policy, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator expected_first, OutputIterator expected_last, Size n,
const T& value)
{
}
template <typename InputIterator, typename OutputIterator, typename Size, typename T>
void
operator()(pstl::execution::parallel_unsequenced_policy, InputIterator first, InputIterator last,
OutputIterator out_first, OutputIterator out_last, OutputIterator expected_first,
OutputIterator expected_last, Size n, const T& value)
{
}
#endif
template <typename Policy, typename InputIterator, typename OutputIterator, typename Size, typename T>
void
operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator expected_first, OutputIterator expected_last, Size,
const T& value)
{
// Cleaning
std::copy(first, last, expected_first);
std::copy(first, last, out_first);
// Run remove
OutputIterator i = remove(expected_first, expected_last, value);
OutputIterator k = remove(exec, out_first, out_last, value);
EXPECT_TRUE(std::distance(expected_first, i) == std::distance(out_first, k), "wrong return value from remove");
EXPECT_EQ_N(expected_first, out_first, std::distance(expected_first, i), "wrong remove effect");
}
};
struct run_remove_if
{
#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 Size, typename Predicate>
void
operator()(pstl::execution::unsequenced_policy, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator expected_first, OutputIterator expected_last, Size n,
Predicate pred)
{
}
template <typename InputIterator, typename OutputIterator, typename Size, typename Predicate>
void
operator()(pstl::execution::parallel_unsequenced_policy, InputIterator first, InputIterator last,
OutputIterator out_first, OutputIterator out_last, OutputIterator expected_first,
OutputIterator expected_last, Size n, Predicate pred)
{
}
#endif
template <typename Policy, typename InputIterator, typename OutputIterator, typename Size, typename Predicate>
void
operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
OutputIterator out_last, OutputIterator expected_first, OutputIterator expected_last, Size,
Predicate pred)
{
// Cleaning
std::copy(first, last, expected_first);
std::copy(first, last, out_first);
// Run remove_if
OutputIterator i = remove_if(expected_first, expected_last, pred);
OutputIterator k = remove_if(exec, out_first, out_last, pred);
EXPECT_TRUE(std::distance(expected_first, i) == std::distance(out_first, k),
"wrong return value from remove_if");
EXPECT_EQ_N(expected_first, out_first, std::distance(expected_first, i), "wrong remove_if effect");
}
};
template <typename T, typename Predicate, typename Convert>
void
test(T trash, const T& value, Predicate pred, Convert convert)
{
const std::size_t max_size = 100000;
Sequence<T> out(max_size, [trash](size_t) { return trash; });
Sequence<T> expected(max_size, [trash](size_t) { return trash; });
for (size_t n = 0; n <= max_size; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
Sequence<T> data(n, [&](size_t k) -> T { return convert(k); });
invoke_on_all_policies(run_remove(), data.begin(), data.end(), out.begin(), out.begin() + n, expected.begin(),
expected.begin() + n, n, value);
invoke_on_all_policies(run_remove_if(), data.begin(), data.end(), out.begin(), out.begin() + n,
expected.begin(), expected.begin() + n, n, pred);
}
}
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, [&]() { remove_if(exec, iter, iter, non_const(is_even)); });
}
};
int
main()
{
#if !_PSTL_ICC_18_TEST_EARLY_EXIT_MONOTONIC_RELEASE_BROKEN
test<int32_t>(666, 42, [](int32_t) { return true; }, [](size_t j) { return j; });
#endif
test<int32_t>(666, 2001, [](const int32_t& val) { return val != 2001; },
[](size_t j) { return ((j + 1) % 5 & 2) != 0 ? 2001 : -1 - int32_t(j); });
test<float64_t>(-666.0, 8.5, [](const float64_t& val) { return val != 8.5; },
[](size_t j) { return ((j + 1) % 7 & 2) != 0 ? 8.5 : float64_t(j % 32 + j); });
#if !_PSTL_ICC_17_TEST_MAC_RELEASE_32_BROKEN
test<Number>(Number(-666, OddTag()), Number(42, OddTag()), IsMultiple(3, OddTag()),
[](int32_t j) { return Number(j, OddTag()); });
#endif
test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const>());
test<MemoryChecker>(MemoryChecker{0}, MemoryChecker{1},
[](const MemoryChecker& val){ return val.value() == 1; },
[](std::size_t idx){ return MemoryChecker{std::int32_t(idx % 3 == 0)}; }
);
EXPECT_FALSE(MemoryChecker::alive_objects() < 0, "wrong effect from remove,remove_if: number of ctors calls < num of dtors calls");
EXPECT_FALSE(MemoryChecker::alive_objects() > 0, "wrong effect from remove,remove_if: number of ctors calls > num of dtors calls");
std::cout << done() << std::endl;
return 0;
}