ceph/src/boost/libs/core/test/ref_implicit_fail3.cpp

   1 //
   2 // Incompatible reference_wrappers must not implicitly convert to each other
   3 //
   4 // Copyright 2020 Peter Dimov
   5 //
   6 // Distributed under the Boost Software License, Version 1.0.
   7 // See accompanying file LICENSE_1_0.txt or copy at
   8 // http://www.boost.org/LICENSE_1_0.txt
   9 //
  10
  11 #include <boost/ref.hpp>
  12
  13 struct X
  14 {
  15 };
  16
  17 struct Y
  18 {
  19 };
  20
  21 void f( boost::reference_wrapper<X> )
  22 {
  23 }
  24
  25 int main()
  26 {
  27     Y y;
  28     f( boost::ref(y) ); // should fail
  29 }