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//===----------------------------------------------------------------------===//
//
// 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++03, c++11, c++14
// <any>
// any& operator=(any &&);
// Test move assignment.
#include <any>
#include <cassert>
#include "any_helpers.h"
#include "test_macros.h"
template <class LHS, class RHS>
void test_move_assign() {
assert(LHS::count == 0);
assert(RHS::count == 0);
{
LHS const s1(1);
std::any a = s1;
RHS const s2(2);
std::any a2 = s2;
assert(LHS::count == 2);
assert(RHS::count == 2);
a = std::move(a2);
assert(LHS::count == 1);
assert(RHS::count == 2 + a2.has_value());
LIBCPP_ASSERT(RHS::count == 2); // libc++ leaves the object empty
assertContains<RHS>(a, 2);
if (a2.has_value())
assertContains<RHS>(a2, 0);
LIBCPP_ASSERT(!a2.has_value());
}
assert(LHS::count == 0);
assert(RHS::count == 0);
}
template <class LHS>
void test_move_assign_empty() {
assert(LHS::count == 0);
{
std::any a;
std::any a2 = LHS(1);
assert(LHS::count == 1);
a = std::move(a2);
assert(LHS::count == 1 + a2.has_value());
LIBCPP_ASSERT(LHS::count == 1);
assertContains<LHS>(a, 1);
if (a2.has_value())
assertContains<LHS>(a2, 0);
LIBCPP_ASSERT(!a2.has_value());
}
assert(LHS::count == 0);
{
std::any a = LHS(1);
std::any a2;
assert(LHS::count == 1);
a = std::move(a2);
assert(LHS::count == 0);
assertEmpty<LHS>(a);
assertEmpty(a2);
}
assert(LHS::count == 0);
}
void test_move_assign_noexcept() {
std::any a1;
std::any a2;
ASSERT_NOEXCEPT(a1 = std::move(a2));
}
int main(int, char**) {
test_move_assign_noexcept();
test_move_assign<small1, small2>();
test_move_assign<large1, large2>();
test_move_assign<small, large>();
test_move_assign<large, small>();
test_move_assign_empty<small>();
test_move_assign_empty<large>();
return 0;
}
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