asio-fwd.hpp
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21 
22 #ifndef NDN_DETAIL_ASIO_FWD_HPP
23 #define NDN_DETAIL_ASIO_FWD_HPP
24 
25 #include <boost/version.hpp>
26 
27 namespace boost {
28 namespace asio {
29 
30 #if BOOST_VERSION >= 106600
31 class io_context;
32 using io_service = io_context;
33 #else
34 class io_service;
35 #endif // BOOST_VERSION >= 106600
36 
37 } // namespace asio
38 } // namespace boost
39 
40 #endif // NDN_DETAIL_ASIO_FWD_HPP