On Mon, 5 Sep 2016, Bernd Edlinger wrote:

> But I think the reasoning is still correct, left shifting
> in a boolean context is suspicious, even if -fwrapv may make
> it defined.  Do you agree?

Well, you can argue that if you want to test whether low bits are all 
zero, you should just use binary & with a suitable mask, or else cast to 
unsigned for the left shift.

-- 
Joseph S. Myers
jos...@codesourcery.com

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