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Re: GCC optimizes integer overflow: bug or feature?

From: Florian Weimer
Subject: Re: GCC optimizes integer overflow: bug or feature?
Date: Tue, 19 Dec 2006 14:40:22 +0100 
* Robert Dewar:

> What is (a*2)/2 optimized to? certainly it has the value a if you
> wrap,

Huh?  Isn't (INT_MAX*2)/2 negative (and thus not equal to INT_MAX) in
2-complement arithmetic?
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