bc8d3f97eb
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <utility>
|
|
|
|
// template <class T>
|
|
// typename conditional
|
|
// <
|
|
// !has_nothrow_move_constructor<T>::value && has_copy_constructor<T>::value,
|
|
// const T&,
|
|
// T&&
|
|
// >::type
|
|
// move_if_noexcept(T& x);
|
|
|
|
#include <utility>
|
|
|
|
class A
|
|
{
|
|
A(const A&);
|
|
A& operator=(const A&);
|
|
public:
|
|
|
|
A() {}
|
|
#ifdef _LIBCPP_MOVE
|
|
A(A&&) {}
|
|
#endif
|
|
};
|
|
|
|
int main()
|
|
{
|
|
int i = 0;
|
|
const int ci = 0;
|
|
|
|
A a;
|
|
const A ca;
|
|
|
|
#ifdef _LIBCPP_MOVE
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(i)), int&&>::value), "");
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(ci)), const int&&>::value), "");
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(a)), const A&>::value), "");
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(ca)), const A&>::value), "");
|
|
#else
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(i)), const int>::value), "");
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(ci)), const int>::value), "");
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(a)), const A>::value), "");
|
|
static_assert((std::is_same<decltype(std::move_if_noexcept(ca)), const A>::value), "");
|
|
#endif
|
|
|
|
}
|