64 KiB should be enough for everyone

[Marco Leise via Digitalmars-d]

Am Fri, 21 Nov 2014 18:07:15 -0800
schrieb Walter Bright <newshound2 at digitalmars.com>:

> On 11/21/2014 1:33 PM, Marco Leise wrote:
> > As someone using unsigned types all the time, all I need to
> > keep in mind are two rules:
> >
> > 1) Overflow:
> >
> >    uint number;
> >    …
> >    number = 10 * number + ch - '0';
> >
> >    It is handled with:
> >    if (number > uint.max / 10)
> >    if (number > uint.max - (ch - '0'))
> 
> You're better off with core.checkedint here, as not only is it correct, but 
> (eventually) it will enable the compiler to optimize it to simply checking the 
> carry flag.

Ah right, I keep forgetting that module. By the way, are calls
to core.checkedint inlined? Since they are in another module
and not templated I'd think not.

-- 
Marco