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erica/stride.md

Last active April 6, 2016 18:40
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stride.md 
(0..<199).striding(by: -2): 0..<199 == 0...198 Even
(1..<199).striding(by: -2): 1..<199 == 1...198 Even
(0..<198).striding(by: -2): 1..<198 == 0...197 Odd
(1..<198).striding(by: -2): 1..<198 == 1...197 Odd

(1.0 ..< limit).striding(by: -stride) <-- is undefined for floating point strides as there cannot be a starting value.

similarly striding by 0 or 0.0 should be undefined a precondition failure

@stephentyrone
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"undefined" or preconditionFailure?

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