1 files changed, 43 insertions, 0 deletions
diff --git a/lib/asio/ip/resolver_query_base.hpp b/lib/asio/ip/resolver_query_base.hpp
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+++ b/lib/asio/ip/resolver_query_base.hpp
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+//
+// ip/resolver_query_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_RESOLVER_QUERY_BASE_HPP
+#define ASIO_IP_RESOLVER_QUERY_BASE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/ip/resolver_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// The resolver_query_base class is used as a base for the
+/// basic_resolver_query class templates to provide a common place to define
+/// the flag constants.
+class resolver_query_base : public resolver_base
+{
+protected:
+  /// Protected destructor to prevent deletion through this type.
+  ~resolver_query_base()
+  {
+  }
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_RESOLVER_QUERY_BASE_HPP