[Boost-bugs] [Boost C++ Libraries] #7230: access to private method using boost::bind

Subject: [Boost-bugs] [Boost C++ Libraries] #7230: access to private method using boost::bind
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-08-14 15:21:52

#7230: access to private method using boost::bind
------------------------------+---------------------------------------------
 Reporter:  anonymous         |       Owner:  pdimov 
     Type:  Bugs              |      Status:  new    
Milestone:  To Be Determined  |   Component:  bind   
  Version:  Boost 1.49.0      |    Severity:  Problem
 Keywords:  bind              |  
------------------------------+---------------------------------------------
 It appears that the privacy of a class method is violated with the use of
 boost::bind in a template class.

 $ uname -a

 Linux myhost.mydomain 2.6.32-220.13.1.el6.x86_64 #1 SMP Thu Mar 29
 11:46:40 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux

 $ g++ --version

 g++ (GCC) 4.4.6 20110731 (Red Hat 4.4.6-3)

 {{{

 #include <boost/bind.hpp>
 #include <iostream>

 class base
 {
 private:
   void _private() { std::cout << "private" << std::endl; }
 };

 template<class T>
 class templ
 {
 public:
   void onPrivate(T* t) {
     // boost::bind(&T::_private, t)(); // error: ‘void base::_private()’
 is private
     boost::bind(&base::_private, t)();
   }
 };

 int main(int argc, char **argv)
 {
   base b;
   templ<base> ab;
   ab.onPrivate(&b); // got into the private parts :)
   // boost::bind(&base::_private, &b)(); // error: ‘void base::_private()’
 is private
 }

 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7230>
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