On Fri, Dec 02, 2016 at 09:31:03PM +0100, Rasmus Villemoes wrote:
> First of all, 1 << 31 is technically undefined behaviour, so let's just
> use an unsigned literal.
It took me a second to realize that you weren't talking about the
unsigned parameter here. You mean using "1U". It might be worth
First of all, 1 << 31 is technically undefined behaviour, so let's just
use an unsigned literal.
If i is 'signed int' and gcc doesn't know that i is positive, gcc
generates code to compute the C99-mandated values of "i / 32" and "i %
32", which is a lot more complicated than simple a simple
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