The demise of T[new]

[Leandro Lucarella]

Andrei Alexandrescu, el 19 de octubre a las 12:40 me escribiste:
> Leandro Lucarella wrote:
> >Andrei Alexandrescu, el 19 de octubre a las 11:16 me escribiste:
> >>>>>I'm missing something? Why this shouldn't work?
> >>>>It may work, but I was unable to pull it off reasonably well.
> >>>What problems did you find?
> >>I thought I explained that above and in several other posts. I have
> >>the feeling this is going in circles, but let me add one more thing.
> >>People would want to have a reasonable way of choosing between
> >>T[new] and T[]. The differences between them are subtle (I have two
> >>tables showing the primitives of T[] and T[new], which are very
> >>similar).
> >
> >If T[new] is "array" and T[] is "slice" as I described them, I see no
> >subtlety, they are huge differences, one is a dynamic array, the other is
> >a view on somebody else's memory.
> 
> Their primitives overlap 90% in syntax and semantics.

So what? Ranges and slices too.

> >I know you probably hate when people says this (that's what I avoided
> >doing it before :):
> >I works very well in Python. You have arrays (well, lists, but the
> >interface is the same as an array) and slices. I never heard anybody
> >complaining about that being confusing.
> 
> Python lists and slices are quite different from D arrays.

Not the API.

> >I don't see much problem. You should always return an array (T[new]) if
> >you have one, because you can get an slice from it (the inverse is not
> >true). Because of this, implicit conversion from array to slice can be
> >a good idea, so people expecting a slice when an array is returned will
> >never know an array was returned anyways. If you need to keep appending to
> >the array, you can have the original array and keep appending to it
> >without any performance hit (no copying, no new allocations).
> >
> >What's wrong with that?
> 
> People expecting a slice and using "auto" or templates are in for a
> rude awakening.

Ok, you are in one of those days when you don't listen to reasons. I give
up! =)

-- 
Leandro Lucarella (AKA luca)                     http://llucax.com.ar/
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