[Boost-bugs] [Boost C++ Libraries] #13064: Different behavior coroutine and coroutine2

Subject: [Boost-bugs] [Boost C++ Libraries] #13064: Different behavior coroutine and coroutine2
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-06-13 13:05:02

#13064: Different behavior coroutine and coroutine2
----------------------------------+-----------------------
 Reporter:  big.black.fox@…       |      Owner:  olli
     Type:  Bugs                  |     Status:  new
Milestone:  To Be Determined      |  Component:  coroutine
  Version:  Boost 1.64.0          |   Severity:  Problem
 Keywords:  coroutine coroutine2  |
----------------------------------+-----------------------
 I noticed different behavior in Coroutine and Coroutine2. There is a
 source file in attachment. Code creates void asymmetric coroutine and
 calls it once. Coroutine returns execution to an invoker, then coroutine
 destructor calls. At this moment coroutine unwind stack. After I switch to
 Coroutine2 behavior changed: after coroutine destructor calls it returns
 execution to coroutine ("coro call 2" in the log) and then unwind stack.

 '''Test app log output with Coroutine''':
 [[BR]]
 main: before coro call...[[BR]]
 TestRAII::ctor[[BR]]
 coro call 1[[BR]]
 main: after coro call...[[BR]]
 TestRAII::dtor[[BR]]
 main: after coro delete...[[BR]]

 '''Test app log output with Coroutine2''':
 [[BR]]
 main: before coro call...[[BR]]
 TestRAII::ctor[[BR]]
 coro call 1[[BR]]
 main: after coro call...[[BR]]
 '''coro call 2'''[[BR]]
 TestRAII::dtor[[BR]]
 main: after coro delete...[[BR]]

 Not sure but i think "coro call 2" must not be appeared.

 Build with GCC 7.1.0:

 g++ -c -pipe -g -std=gnu++1z -Wall -W -fPIC -I../../../../boost_1_64_0 -o
 main.o ./main.cpp

 g++ -o ./main main.o -L./ -lboost_coroutine -lboost_system -lboost_context
 -lboost_thread

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Ticket URL: <https://svn.boost.org/trac10/boost/ticket/13064>
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