little problem w/ pre and post increments...

[Alexandre Oliva]

On Jun 16, 2000, "Fred Baumgarten" <dc6iq@hotmail.com> wrote:

> I tried this one, resulting in different results using optimized code
> or not:

>         int y=x++ + ++x;

You modify the same variable twice without intervening sequence
points.  This invokes undefined behavior.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
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CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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