Shulou(Shulou.com)06/02 Report--

Streamsize sgetn (char_type * store,streamsize n) returns n characters under the buffer and stores them in store, and moves the buffer position back n bytes

Code description: originally wanted to constantly get the contents of streambuf through the sgetn function, but did not fully understand the way sgetn got the stream, which led to the problem

Int Teststreambuf ()

{

Boost::asio::streambuf request

Std::ostream request_stream & request)

Request_stream

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