On Saturday, 28 May 2016 at 20:43:00 UTC, pineapple wrote:
On Saturday, 28 May 2016 at 16:25:02 UTC, Seb wrote:
If you are interested how it works under the hood - it's
pretty simple & elegant:
I checked up on the phobos implementation and found that arrays
are mutated when iterated over as ranges, which didn't rest
well with me. Nor did the idea of importing some module having
such a significant side-effect as whether some type can act as
a range or not. So I ended up making a sort of factory that
turns arbitrary objects into ranges, including arrays. Seems to
work pretty well.
Arrays in D work differently to other languages. That's why we
call them Slices ;-)
See: https://dlang.org/d-array-article.html
Phobos just modifies the pointer - so `a = a[1 .. $];` is nothing
more than creating a new pointer.
are mutated when iterated over as ranges,
Btw all ranges are modified during iteration, they have a state
and with every popFront you change that. If you want to save the
state before, you can call `.save` if it's at least a ForwardRange
