re PR c++/14024 (g++ isn't reporting aliasing warnings)

re PR c++/14024 (g++ isn't reporting aliasing warnings)

2005-11-24  Richard Guenther  <rguenther@suse.de>
	Dirk Mueller <dmueller@suse.de>

	PR c++/14024
	* c-common.h (strict_aliasing_warning): Declare.
	* c-common.c (strict_aliasing_warning): New function,
	split out from ...
	* c-typeck.c (build_c_cast): ... here.

	* typeck.c (build_reinterpret_cast_1): Use it.

	* g++.dg/warn/Wstrict-aliasing-1.C: New testcase.
	* g++.dg/warn/Wstrict-aliasing-2.C: Likewise.
	* g++.dg/warn/Wstrict-aliasing-3.C: Likewise.
	* g++.dg/warn/Wstrict-aliasing-4.C: Likewise.
	* g++.dg/warn/Wstrict-aliasing-5.C: Likewise.
	* g++.dg/warn/Wstrict-aliasing-6.C: Likewise.

Co-Authored-By: Dirk Mueller <dmueller@suse.de>
From-SVN: r107459