Boost C++ Libraries: Ticket #6652: Boost.Thread shared_mutex.hpp:50:99: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

owner, status changed

viboes — Tue, 27 Mar 2012 06:00:53 GMT

owner changed from Anthony Williams to viboes
status new → assigned

status changed

viboes — Sun, 08 Apr 2012 22:17:39 GMT

status assigned → new

status changed

viboes — Sun, 03 Jun 2012 14:10:00 GMT

status new → assigned

viboes — Mon, 02 Jul 2012 22:13:16 GMT

Boost 1.50 avoids these warnings if you define BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN or BOOST_THREAD_VERSION=3.

The default value for BOOST_THREAD_VERSION is 2 on 1.50, but will be 3 in a near release, so maybe you can already switch.

I will not try to fix these warning in the legacy code. Let me know if we can close this tickets as wontfix.

status changed; resolution set; milestone deleted

viboes — Sun, 08 Jul 2012 16:06:25 GMT

status assigned → closed
resolution → wontfix
milestone To Be Determined

barnabe.faliu@… — Tue, 04 Dec 2012 19:40:32 GMT

I have the same problems using boost 1.52.0, even if I define "BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN". Any solutions ?

status changed; resolution deleted

viboes — Sat, 19 Jan 2013 10:47:37 GMT

status closed → reopened
resolution wontfix

Reopened as BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN will not be defined by default and as #7906 states there is a lost in performances when this define is defined.

milestone set

viboes — Sat, 16 Feb 2013 23:25:18 GMT

milestone → Boost 1.54.0

status changed; resolution set

viboes — Sat, 23 Mar 2013 02:13:01 GMT

status reopened → closed
resolution → fixed

Committed revision [83525].

alexandre.nunes@… — Thu, 19 Jan 2017 14:37:39 GMT

Boost 1.63.0 + gcc 6.3.0 still have strict aliasing issues in win32/shared_mutex.hpp. See #12733 for a patch.