Formatted output of range of tuples

[Sag Academy via Digitalmars-d-learn]

On Monday, 13 October 2014 at 09:20:27 UTC, monarch_dodra wrote:
> On Wednesday, 8 October 2014 at 23:28:34 UTC, bearophile wrote:
>> anonymous:
>>
>>> You can turn the tuples into ranges with `only`:
>>>
>>> writef("%(%(%s %)\n%)", zip(indexes, source).map!(t => 
>>> only(t.expand)));
>>
>> This is a nice idea. Expand can probably be replaced by a []. 
>> I presume this works only if the types inside the tuple are 
>> the same.
>
> Expand creates "returns" a TypeTuple though, so it's arguably 
> "free". "[]" allocates a dynamic array, so is costly.
>
> On the flip side, "only" is *entirelly* by value, and carries 
> all its arguments. If the tuple is big, then the range can 
> become quite big.

> you are right man.