ceph/src/boost/libs/optional/test/optional_test_ref_fail_init_from_Urefref.cpp

   1 // Copyright (C) 2014, 2016 andrzej Krzemienski.
   2 //
   3 // Use, modification, and distribution is subject to the Boost Software
   4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // See http://www.boost.org/lib/optional for documentation.
   8 //
   9 // You are welcome to contact the author at:
  10 //  akrzemi1@gmail.com
  11 //
  12 #include "boost/optional.hpp"
  13 #include "boost/core/ignore_unused.hpp"
  14
  15 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  16 //
  17 // THIS TEST SHOULD FAIL TO COMPILE
  18 //
  19 void optional_reference__test_no_init_from_Urefref()
  20 {
  21   boost::optional<const int&> opt = long(3);
  22   boost::ignore_unused(opt);
  23 }
  24
  25 #else
  26 #  error "Test skipped. This cannot be implemented w/o rvalue references."
  27 #endif