Multiple return values

[Manu]

Does returning a tuple give any ABI guarantees? How can I be sure multiple
return values will return in consecutive registers?
What if the return types are of different types, a float and an int... can
I expect each to return in their own register types respectively?
This needs to be defined and loosely guaranteed (within reason) so people
can expect multiple return values to behave as expected on any architecture.

On 4 January 2012 01:02, Sean Kelly <sean at invisibleduck.org> wrote:

> It's easy enough with Tuple, though better language support would be nice.
>
> Sent from my iPhone
>
> On Jan 3, 2012, at 2:40 PM, Manu <turkeyman at gmail.com> wrote:
>
> > Why doesn't D support multiple return values like many other modern
> languages?
> >
> > Clearly the same syntax as Go wouldn't work, but I'm sure a neat and
> tidy syntax could be invented?
> > I constantly want to be able to return x,y from a function, or
> retVal,errorCode and I want the language to make some rough ABI guarantees,
> like multiple return values will be returned in consecutive registers,
> rather than a single return value register like C/C++, avoiding the need to
> pass output addresses through ref function parameters (slow!).
>
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