Re: [Boost-bugs] [Boost C++ Libraries] #7765: Warnings from shared_mutex.hpp when including thread.hpp

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7765: Warnings from shared_mutex.hpp when including thread.hpp
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-01-03 16:10:40

#7765: Warnings from shared_mutex.hpp when including thread.hpp
---------------------------------------+------------------------------------
  Reporter:  barnabe.faliu@…           |       Owner:  viboes  
      Type:  Bugs                      |      Status:  assigned
 Milestone:  To Be Determined          |   Component:  thread  
   Version:  Boost 1.52.0              |    Severity:  Problem 
Resolution:                            |    Keywords:          
---------------------------------------+------------------------------------
Changes (by viboes):

  * owner:  => viboes
  * status:  new => assigned
  * component:  None => thread
  * milestone:  Boost 1.52.0 => To Be Determined


Old description:

> Just by including <boost/thread/thread.hpp>, when I compile my program I
> get thoose warnings:
>
> '''C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp: In
> instantiation of 'T boost::shared_mutex::interlocked_compare_exchange(T*,
> T, T) [with T = boost::shared_mutex::state_data]':
> C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:124:103:
> required from here
> C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:52:99: warning:
> dereferencing type-punned pointer will break strict-aliasing rules
> C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:52:99: warning:
> dereferencing type-punned pointer will break strict-aliasing rules
> C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:53:52: warning:
> dereferencing type-punned pointer will break strict-aliasing rules
> C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:53:52: warning:
> dereferencing type-punned pointer will break strict-aliasing rules'''
>
> Help please !

New description:

 Just by including <boost/thread/thread.hpp>, when I compile my program I
 get thoose warnings:


 {{{
 '''C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp: In
 instantiation of 'T boost::shared_mutex::interlocked_compare_exchange(T*,
 T, T) [with T = boost::shared_mutex::state_data]':
 C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:124:103:
 required from here
 C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:52:99: warning:
 dereferencing type-punned pointer will break strict-aliasing rules
 C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:52:99: warning:
 dereferencing type-punned pointer will break strict-aliasing rules
 C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:53:52: warning:
 dereferencing type-punned pointer will break strict-aliasing rules
 C:\Boost\boost_1_52_0/boost/thread/win32/shared_mutex.hpp:53:52: warning:
 dereferencing type-punned pointer will break strict-aliasing rules'''
 }}}


 Help please !

--
-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7765#comment:3>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.