Method value

include/win/boost/optional/optional.hpp:1050–1056

#if (!defined BOOST_NO_CXX11_REF_QUALIFIERS) && (!defined BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES) 
    reference_const_type value() const&
      { 
        if (this->is_initialized())
          return this->get() ;
        else
          throw_exception(bad_optional_access());
      }
      
    reference_type value() &
      {