src/third_party/llvm-project/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/assign_convertible_propagate_const.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     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

// <propagate_const>

// template <class U> constexpr propagate_const& operator=(U&& u); // won't bind to propagate_const

#include <experimental/propagate_const>
#include "propagate_const_helpers.h"
#include <type_traits>

using std::experimental::propagate_const;

typedef propagate_const<X> PX;
typedef propagate_const<CopyConstructibleFromX> PY;

int main() { static_assert(!std::is_assignable<PY, const PX &>::value, ""); }