------- Comment #10 from pinskia at gmail dot com 2009-04-25 14:25 -------
Subject: Re: gcc-4.4 -Wstrict-aliasing and
-Wstrict-aliasing=3 behaves like -Wstrict-aliasing=2 in gcc-4.3
On Sat, Apr 25, 2009 at 7:22 AM, edwintorok at gmail dot com
<gcc-bugzi...@gcc.gnu.org> wrote:
> Hmm, looks like the only way out is for me to put #if defined(__GNUC__) &&
> (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) and use memcpy.
> Either that or add a configure rule to add -fno-strict-aliasing.
GCC has been able to optimize memcpy since at least 3.0.0 so using:
#if (__GNUC__ >=3)
Should be good enough (undefined macros are substituted with 0 in #if's).
-- Pinski
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39895
