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[Bug c/34803] wrong code for dereferencing type-punned pointer
- 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: 15 Jan 2008 22:47:08 -0000
- Subject: [Bug c/34803] wrong code for dereferencing type-punned pointer
- References: <bug-34803-455@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from pinskia at gcc dot gnu dot org 2008-01-15 22:47 -------
unsigned char *extptr;
((aliasing_u) &extptr)->p = c;
Well you are obviously violating c aliasing rules here. the warning does not
happen is a different issue.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|wrong code for dereferencing|wrong code for dereferencing
|type-punned pointer |type-punned pointer
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34803