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| X-Authentication-Warning: | delorie.com: mail set sender to djgpp-workers-bounces using -f |
| Date: | Wed, 16 Jul 2008 13:43:42 -0400 |
| Message-Id: | <200807161743.m6GHhgeF026876@envy.delorie.com> |
| From: | DJ Delorie <dj AT delorie DOT com> |
| To: | djgpp-workers AT delorie DOT com |
| In-reply-to: | <487E2DD0.7080400@iki.fi> (message from Andris Pavenis on Wed, 16 |
| Jul 2008 20:20:16 +0300) | |
| Subject: | Re: Fixes for strict aliasing warnings from GCC-4.3.1 |
| References: | <487E2DD0 DOT 7080400 AT iki DOT fi> |
| Reply-To: | djgpp-workers AT delorie DOT com |
| Errors-To: | nobody AT delorie DOT com |
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We have a union-based trick we use for UNCONST, maybe that would be
cleaner to use than all those casts anyway?
As a bonus, it would avoid the aliasing problems the "right way".
#define unconst(__v, __t) __extension__ ({union { const __t __cp; __t __p; } __q; __q.__cp = __v; __q.__p;})
We could define a "as_long" that unions typeof(x) with long.
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