[OT] Doc doesn't mention 2's complement

[KennyTM~]

On Aug 21, 10 02:12, Walter Bright wrote:
[snip]
>
> You're conflating two different things here - undefined behavior and
> behavior on overflow. The Java spec says that integer overflow is
> ignored, for example.
>
> In C++, overflow behavior is undefined because C++ still supports
> ones-complement arithmetic. Java and D specify integer arithmetic to be
> 2's complement. Java defined left shift to, not surprisingly, match what
> the x86 CPU does. This, of course, will conveniently not result in any
> penalty on the x86 for conforming to the spec.

I believe D requires signed integers be represented in 2's complement, 
but the specification didn't document it (grepping 'complement' in 
phobos/docsrc gives nothing related).