equal.pass.cpp
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// -*- C++ -*-
//===-- equal.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"
using namespace TestUtils;
#define CPP14_ENABLED 0
struct UserType
{
size_t key;
float32_t f;
float64_t d;
int32_t i;
bool
operator()(UserType a, UserType b)
{
return a.key < b.key;
}
bool
operator<(UserType a)
{
return a.key < key;
}
bool
operator>=(UserType a)
{
return a.key <= key;
}
bool
operator<=(UserType a)
{
return a.key >= key;
}
bool
operator==(UserType a)
{
return a.key == key;
}
bool
operator==(UserType a) const
{
return a.key == key;
}
bool
operator!=(UserType a)
{
return a.key != key;
}
UserType operator!()
{
UserType tmp;
tmp.key = !key;
return tmp;
}
friend std::ostream&
operator<<(std::ostream& stream, const UserType a)
{
stream << a.key;
return stream;
}
UserType() : key(-1), f(0.0f), d(0.0), i(0) {}
UserType(size_t Number) : key(Number), f(0.0f), d(0.0), i(0) {}
UserType&
operator=(const UserType& other)
{
key = other.key;
return *this;
}
UserType(const UserType& other) : key(other.key), f(other.f), d(other.d), i(other.i) {}
UserType(UserType&& other) : key(other.key), f(other.f), d(other.d), i(other.i)
{
other.key = -1;
other.f = 0.0f;
other.d = 0.0;
other.i = 0;
}
};
struct test_one_policy
{
template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
void
operator()(ExecutionPolicy&& exec, Iterator1 first1, Iterator1 last1, Iterator2 first2, bool is_true_equal)
{
using namespace std;
auto expected = equal(first1, last1, first2);
auto actual = equal(exec, first1, last1, first2);
EXPECT_EQ(expected, actual, "result for equal for random-access iterator, checking against std::equal()");
// testing bool
EXPECT_TRUE(is_true_equal == actual, "result for equal for random-access iterator, bool");
//add C++14 equal symantics tests
//add more cases for inCopy size less than in
#if CPP14_ENABLED
auto actualr14 = std::equal(in.cbegin(), in.cend(), inCopy.cbegin(), inCopy.cend());
EXPECT_EQ(expected, actualr14, "result for equal for random-access iterator");
#endif
}
};
template <typename T>
void
test(size_t bits)
{
for (size_t n = 1; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
// Sequence of odd values
Sequence<T> in(n, [bits](size_t k) { return T(2 * HashBits(k, bits - 1) ^ 1); });
Sequence<T> inCopy(in);
invoke_on_all_policies(test_one_policy(), in.begin(), in.end(), inCopy.begin(), true);
invoke_on_all_policies(test_one_policy(), in.cbegin(), in.cend(), inCopy.cbegin(), true);
// testing bool !equal()
inCopy[0] = !inCopy[0];
invoke_on_all_policies(test_one_policy(), in.begin(), in.end(), inCopy.begin(), false);
invoke_on_all_policies(test_one_policy(), in.cbegin(), in.cend(), inCopy.cbegin(), false);
}
}
template <typename T>
struct test_non_const
{
template <typename Policy, typename FirstIterator, typename SecondInterator>
void
operator()(Policy&& exec, FirstIterator first_iter, SecondInterator second_iter)
{
equal(exec, first_iter, first_iter, second_iter, second_iter, non_const(std::equal_to<T>()));
}
};
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<UserType>(256);
test_algo_basic_double<int32_t>(run_for_rnd_fw<test_non_const<int32_t>>());
std::cout << done() << std::endl;
return 0;
}