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[Bug c++/38818] C++ bitfield static initialisation problem
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Jan 2009 21:37:22 -0000
- Subject: [Bug c++/38818] C++ bitfield static initialisation problem
- References: <bug-38818-8983@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gcc dot gnu dot org 2009-01-12 21:37 -------
*(unsigned long *)this=l;
You are violating C/C++ aliasing rules which invokes undefined behavior as you
are accessing a giChannelTiming as a unsigned long.
Either use -fno-strict-aliasing or memcpy or unions or the attribute may_alias
to fix your code
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38818