D const design rationale

[Daniel Keep]

Sean Kelly wrote:
> Daniel Keep wrote:
>>
>> Frits van Bommel wrote:
>>> Allowing it allows cleaner generic code, otherwise templates would often
>>> have to check whether parameters were value or reference types.
>>
>> Indeed; we already need to special-case functions that return void.
> 
> How so?  I thought "return void" was a legal statement?
> 
> Sean

Indeed it is.  But what if you need to actually *store* the return value?

I believe the problems I had with the coroutine stuff specifically were
storing the return value and having functions that passed *in* a value
of the return type (which obviously had to be written separately for
functions with void since you can't have void parameters, either).

	-- Daniel