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// SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2020, Intel Corporation */
#include "unittest.hpp"
#include <array>
#include <libpmemobj++/detail/pair.hpp>
#include <libpmemobj++/pool.hpp>
static int copy_ctor_called = 0;
static int move_ctor_called = 0;
struct A {
A(int a = 0, int b = 0, int c = 0) : a(a), b(b), c(c)
{
}
A(const A &rhs)
{
copy_ctor_called++;
a = rhs.a;
b = rhs.b;
c = rhs.c;
}
A(A &&rhs)
{
move_ctor_called++;
a = rhs.a;
b = rhs.b;
c = rhs.c;
}
A &operator=(const A &) = default;
int a;
int b;
int c;
};
void
verify_vals(pmem::detail::pair<A, A> &a, std::array<int, 6> expected)
{
UT_ASSERTeq(a.first.a, expected[0]);
UT_ASSERTeq(a.first.b, expected[1]);
UT_ASSERTeq(a.first.c, expected[2]);
UT_ASSERTeq(a.second.a, expected[3]);
UT_ASSERTeq(a.second.b, expected[4]);
UT_ASSERTeq(a.second.c, expected[5]);
}
void
construct_test()
{
{
A a1(1, 2, 3), a2(4, 5, 6);
copy_ctor_called = 0;
move_ctor_called = 0;
pmem::detail::pair<A, A> p(a1, a2);
UT_ASSERTeq(copy_ctor_called, 2);
UT_ASSERTeq(move_ctor_called, 0);
verify_vals(p, {1, 2, 3, 4, 5, 6});
}
{
A a1(1, 2, 3), a2(4, 5, 6);
copy_ctor_called = 0;
move_ctor_called = 0;
pmem::detail::pair<A, A> p(std::move(a1), std::move(a2));
UT_ASSERTeq(copy_ctor_called, 0);
UT_ASSERTeq(move_ctor_called, 2);
verify_vals(p, {1, 2, 3, 4, 5, 6});
}
{
A a1(1, 2, 3), a2(4, 5, 6);
copy_ctor_called = 0;
move_ctor_called = 0;
pmem::detail::pair<A, A> p(std::piecewise_construct,
std::forward_as_tuple(a1),
std::forward_as_tuple(a2));
UT_ASSERTeq(copy_ctor_called, 2);
UT_ASSERTeq(move_ctor_called, 0);
verify_vals(p, {1, 2, 3, 4, 5, 6});
}
{
A a1(1, 2, 3), a2(4, 5, 6);
copy_ctor_called = 0;
move_ctor_called = 0;
pmem::detail::pair<A, A> p(
std::piecewise_construct,
std::forward_as_tuple(std::move(a1)),
std::forward_as_tuple(std::move(a2)));
UT_ASSERTeq(copy_ctor_called, 0);
UT_ASSERTeq(move_ctor_called, 2);
verify_vals(p, {1, 2, 3, 4, 5, 6});
}
{
A a1(1, 2, 3), a2(4, 5, 6);
copy_ctor_called = 0;
move_ctor_called = 0;
pmem::detail::pair<A, A> p(std::piecewise_construct,
std::forward_as_tuple(1, 2),
std::forward_as_tuple(3));
UT_ASSERTeq(copy_ctor_called, 0);
UT_ASSERTeq(move_ctor_called, 0);
verify_vals(p, {1, 2, 0, 3, 0, 0});
}
}
static void
test(int argc, char *argv[])
{
construct_test();
}
int
main(int argc, char *argv[])
{
return run_test([&] { test(argc, argv); });
}
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