Re: [Boost-bugs] [Boost C++ Libraries] #4427: for_each does not take a non-const Function object

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4427: for_each does not take a non-const Function object
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-11-04 11:13:10

#4427: for_each does not take a non-const Function object
---------------------------+----------------------
  Reporter:  chetant@…     |      Owner:  djowel
      Type:  Bugs          |     Status:  reopened
 Milestone:  Boost 1.44.0  |  Component:  fusion
   Version:  Boost 1.43.0  |   Severity:  Problem
Resolution:                |   Keywords:  for_each
---------------------------+----------------------

Comment (by anonymous):

 Replying to [comment:6 djowel]:
 > F can be passed around by value and any changes there will not update
 the actual F you passed in.
 F can be wrapped in std::ref and any changes there will update the actual
 F.
 > Even STL algorithms are designed that way, so I am not sure why you are
 surprised (e.g. http://en.cppreference.com/w/cpp/algorithm/for_each;

 notice UnaryFunction f)
 Notice, that f is passed by value, but not const reference.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4427#comment:8>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.