auto c = cycle([1,2,3]);
foreach(i ; iota(-4,4)) {
  writeln(c[i]);
}

prints the sequence
1
2
3
1
1   <----- c[0] == c[-1]
2
3

I understand this is what would happen if I were to just use modulus on an index to access the original array, but should Cycle really mimic this behavior? I feel like most uses of Cycle would expect element -1 to be the last element of the original range, not the first. I could manually apply addition with modulus to ensure that the index is always positive, but then there's not much benefit to using cycle anyways -- I might as well be accessing the original range.
Is this behavior intentional or an oversight?

Reply via email to