cxx/test/utilities/utility/declval/declval.pass.cpp
Howard Hinnant bc8d3f97eb libcxx initial import
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 19:42:16 +00:00

31 lines
746 B
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 add_rvalue_reference<T>::type declval() noexcept;
#include <utility>
#include <type_traits>
class A
{
A(const A&);
A& operator=(const A&);
};
int main()
{
#ifdef _LIBCPP_MOVE
static_assert((std::is_same<decltype(std::declval<A>()), A&&>::value), "");
#else
static_assert((std::is_same<decltype(std::declval<A>()), A>::value), "");
#endif
}