Re: [Boost-users] boost bind, issue moving from 1.57 to 1.60

Subject: Re: [Boost-users] boost bind, issue moving from 1.57 to 1.60
From: Jason Mancini (jayrusman_at_[hidden])
Date: 2016-06-16 17:39:00

> I'm a user, but I've never seen a usage like this before.

So this snippet comes from a sizable code base.  Took a long time to pinpoint then distill the issue down to the 6-line example!  Pretty sure that std::bind / std::function don't support this usage, or at least it didn't work when I tried for a few minutes.  Boost flavor seems a bit more featured.

The actual offender is the bigger change in bind/bind.hpp from 1.59 to 1.60 (not the trivial changes in args or placeholder).  I can see they added significant std::forward / rvalue support.  If I set BOOST_NO_CXX11_RVALUE_REFERENCES then also it continues to work.  I suspect we've hit a corner case issue with forward / rvalue and boost::function / boost::shared_ptr.

Jason