Re: EMACS_INT to EMACS_UINT

[Ravi Desai]

On 2016-12-04 09:00 PM, Paul Eggert wrote:
> On 12/04/2016 03:16 PM, Ravi Desai wrote:
> > Is this something that we should change? The code is working
>
> I'm not sure what you'd change. In many places the Emacs C code relies 
> on the fact that unsigned arithmetic is modulo 2**N, where N is the 
> width of the unsigned integer, so that (for example) converting -1 to 
> unsigned yields UINT_MAX. XLI and XIL are intended for low-level use, 
> where this part of C semantics is assumed to be well-understood.
Ah, ok.  I was thrown off by the lack of explicit casting.  Sorry about 
that, and thanks for the explanation.