ceph/src/boost/libs/core/test/ref_rv_fail5.cpp

   1 //
   2 // Test that a const rvalue can't be passed to cref()
   3 //
   4 // Copyright 2014 Agustin Berge
   5 // Copyright 2014 Peter Dimov
   6 //
   7 // Distributed under the Boost Software License, Version 1.0.
   8 // See accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt
  10 //
  11
  12 #include <boost/ref.hpp>
  13
  14 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
  15
  16 struct X {};
  17
  18 X const crv() { return X(); }
  19
  20 int main()
  21 {
  22     boost::reference_wrapper<X const> r = boost::cref( crv() ); // must fail
  23     (void)r;
  24 }
  25
  26 #else
  27 #  error To fail, this test requires rvalue references.
  28 #endif