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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // UNSUPPORTED: c++98, c++03, c++11
     11 
     12 // <propagate_const>
     13 
     14 // template <class U> constexpr propagate_const(propagate_const<_Up>&& pu);
     15 
     16 #include <experimental/propagate_const>
     17 #include "propagate_const_helpers.h"
     18 #include <cassert>
     19 
     20 using std::experimental::propagate_const;
     21 
     22 typedef propagate_const<MoveConstructibleFromX> PY;
     23 typedef propagate_const<X> PX;
     24 
     25 int main() {
     26   PX px(1);
     27   PY py(std::move(px));
     28 
     29   assert(*py==1);
     30 }
     31 
     32