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Backport #9575
closedStep with 0 step is buggy
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Description
I didn't realize that we now allow stepping with a '0' step. It should probably have been mentioned in the NEWS of 2.1.0?
Anyways, couple of bugs with that new feature:
bn = 1 << 100
bn.step(by: 0, to: bn).first(2) # => [bn, bn] ok
bn.step(by: 0).first(2) # => [bn.to_f, bn.to_f] not ok
bn.step(by: 0, to: 0).first(2) # => [] not ok
The corresponding size
don't all work either:
bn.step(by: 0) # => Float::INFINITY, ok
bn.step(by: 0, to: bn).size # => ZeroDivisionError: divided by 0, should be infinity
bn.step(by: 0, to: 0).size # => same
1.step(by:0, to: 42).size # => same
My patch is almost finished.
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