1 // 2 // ip/resolver_query_base.hpp 3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~ 4 // 5 // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com) 6 // 7 // Distributed under the Boost Software License, Version 1.0. (See accompanying 8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9 // 10 11 #ifndef ASIO_IP_RESOLVER_QUERY_BASE_HPP 12 #define ASIO_IP_RESOLVER_QUERY_BASE_HPP 13 14 #if defined(_MSC_VER) && (_MSC_VER >= 1200) 15 # pragma once 16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) 17 18 #include "asio/detail/config.hpp" 19 #include "asio/ip/resolver_base.hpp" 20 21 #include "asio/detail/push_options.hpp" 22 23 namespace asio { 24 namespace ip { 25 26 /// The resolver_query_base class is used as a base for the 27 /// basic_resolver_query class templates to provide a common place to define 28 /// the flag constants. 29 class resolver_query_base : public resolver_base 30 { 31 protected: 32 /// Protected destructor to prevent deletion through this type. ~resolver_query_base()33 ~resolver_query_base() 34 { 35 } 36 }; 37 38 } // namespace ip 39 } // namespace asio 40 41 #include "asio/detail/pop_options.hpp" 42 43 #endif // ASIO_IP_RESOLVER_QUERY_BASE_HPP 44