[Boost-bugs] [Boost C++ Libraries] #11913: free functions should support StreamBuffer concept

Subject: [Boost-bugs] [Boost C++ Libraries] #11913: free functions should support StreamBuffer concept
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-01-14 21:18:42

#11913: free functions should support StreamBuffer concept
------------------------------+----------------------------
 Reporter:  vinnie.falco@…    |      Owner:  chris_kohlhoff
     Type:  Feature Requests  |     Status:  new
Milestone:  To Be Determined  |  Component:  asio
  Version:  Boost 1.61.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+----------------------------
 Functions like ```boost::asio::read``` which take
 ```boost::asio::basic_streambuf<>``` as parameters should instead take the
 stream buffer by template argument. A new concept ```StreamBuffer```
 should be added under "Type Requirements" in the reference.

 Rationale: boost free functions should work with user defined stream
 buffers that meet the requirements. The asio reference alludes to this
 functionality in the description for ```basic_streambuf```:

 "The basic_streambuf class's public interface is intended to permit the
 following implementation strategies:..."

 However without support for types that meet the requirements, user defined
 stream buffers cannot provide alternate implementation strategies that
 work with asio free functions.

 Example of a user defined streambuf with a compatible interface:
 https://github.com/ripple/rippled/blob/develop/src/beast/beast/asio/streambuf.h#L38

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/11913>
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