On 11/26/2015 03:36 PM, Wenzel P. P. Peppmeyer wrote:
On Thu, 26 Nov 2015, Elizabeth Mattijsen via RT wrote:
(0.1 .. 0.3).roll(10).say;
What did you expect? a selection of 0.1, 0.2, 0.3 ?? or 10 random
values between 0.1 and 0.3 inclusive?
I would (naive) expect 10x a value between 0.1 and 0.3 . Analog to:
(0.1, 0.2, 0.3).roll(10).say;
# OUTPUT«(0.3 0.2 0.1 0.2 0.1 0.2 0.3 0.2 0.2 0.1)»
However, S03 is quite clear how Range is iterating.
0.1.succ == 1.1;
So incrementing by 0.1 can't work. It may be reasonable to fail as early
as possible for Range.roll on any Range that is neither Int nor Str on
both end points.
I don't think so. What's wrong with (1.1 .. 10.1).roll for example? It
has well-defined semantics.
People need to read docs occasionally, there's nothing we can do to
prevent them from abusing the core APIs, except by crippling them --
which isn't traditionally perl's approach.
Cheers,
Moritz
