How to expand an expression along with a parameter tuple?

[Artur Skawina]

On 06/17/13 16:20, bearophile wrote:
> Artur Skawina:
> 
>> Yes, this is not as concise as '...' would be. But, with a bit more tuple support in the language, the '.tuple' part wouldn't be
>> necessary,
> 
> Implicit things are dangerous in languages.

Not sure what you mean.

"A bit more tuple support" means aot being able to return
/real/ tuples from functions. This just needs to be specced;
can be handled like I did in the ForEach example - by wrapping
it in a struct, only internally. Then this becomes possible:

   auto ForEach(alias MAP, TS...)(TS ts) {
      NTup!(TS.length, typeof(MAP(TS[0].init))) tuple;
      foreach (i, ref v; values)
         tuple[i] = MAP(v);
      return tuple;
   }
   void bar(T...)(T values) {
      foo(ForEach!(a=>arr[a]*10)(values));
   }

which is already much more readable. And 100% explicit.
While /it's only syntax sugar/, it does remove a lot of noise.

> ".tuple" can also be written "[]".

No idea what you mean by this.

artur