forked from mirror/libcxx
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
2.6 KiB
C++
117 lines
2.6 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: c++98, c++03, c++11, c++14
|
|
|
|
// XFAIL: availability=macosx10.13
|
|
// XFAIL: availability=macosx10.12
|
|
// XFAIL: availability=macosx10.11
|
|
// XFAIL: availability=macosx10.10
|
|
// XFAIL: availability=macosx10.9
|
|
// XFAIL: availability=macosx10.8
|
|
// XFAIL: availability=macosx10.7
|
|
|
|
// <any>
|
|
|
|
// any& operator=(any &&);
|
|
|
|
// Test move assignment.
|
|
|
|
#include <any>
|
|
#include <cassert>
|
|
|
|
#include "any_helpers.h"
|
|
#include "test_macros.h"
|
|
|
|
using std::any;
|
|
using std::any_cast;
|
|
|
|
template <class LHS, class RHS>
|
|
void test_move_assign() {
|
|
assert(LHS::count == 0);
|
|
assert(RHS::count == 0);
|
|
{
|
|
LHS const s1(1);
|
|
any a(s1);
|
|
RHS const s2(2);
|
|
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);
|
|
{
|
|
any a;
|
|
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);
|
|
{
|
|
any a((LHS(1)));
|
|
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() {
|
|
any a1;
|
|
any a2;
|
|
static_assert(
|
|
noexcept(a1 = std::move(a2))
|
|
, "any & operator=(any &&) must be noexcept"
|
|
);
|
|
}
|
|
|
|
int main() {
|
|
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>();
|
|
}
|