Re: [Boost-bugs] [Boost C++ Libraries] #2642: bug constructing from a reference to another boost::function

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #2642: bug constructing from a reference to another boost::function
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-09-02 02:43:30

#2642: bug constructing from a reference to another boost::function
------------------------------+---------------------------------------------
  Reporter:  steven_watanabe  |       Owner:  dgregor 
      Type:  Bugs             |      Status:  reopened
 Milestone:  Boost 1.38.0     |   Component:  function
   Version:  Boost 1.37.0     |    Severity:  Problem 
Resolution:                   |    Keywords:          
------------------------------+---------------------------------------------
Changes (by Yusaku Sugai <sugai@…>):

  * status:  closed => reopened
  * resolution:  fixed =>

Comment:

 The following code throws a bad_function_call exception with Boost
 1.40.0.[[BR]]
 It was OK with Boost 1.38.0.[[BR]]
 I suppose #2642 patch made reference to function(empty or not) to be
 always non-empty.[[BR]]

 {{{
 #include <boost/function.hpp>
 #include <boost/ref.hpp>

 int main() {
     boost::function<void()> f1;
     boost::function<void()> f2(boost::ref(f1));
     if (f2) {
         f2();
     }
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2642#comment:3>
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