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

   1 // Copyright (C) 2015 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 #define BOOST_OPTIONAL_CONFIG_NO_RVALUE_REFERENCES
  13 #include "boost/optional/optional.hpp"
  14
  15 #ifdef BOOST_BORLANDC
  16 #pragma hdrstop
  17 #endif
  18
  19 #include "boost/core/lightweight_test.hpp"
  20
  21
  22 struct Wrapper
  23 {
  24   operator int () { return 9; }
  25   operator boost::optional<int> () { return 7; }
  26 };
  27
  28 void test()
  29 {
  30 #if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES)
  31   boost::optional<int> v = Wrapper();
  32   BOOST_TEST(v);
  33   BOOST_TEST_EQ(*v, 7);
  34 #endif
  35 }
  36
  37 int main()
  38 {
  39   test();
  40   return boost::report_errors();
  41 }