Make upperBound != 0 a precondition for RNG.next(upperBound:) #17627
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The function's definition is "Returns a random value that is less than the given upper bound," which cannot possibly be satisfied with upperBound == 0; previously the function returned zero, which was a bug.
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@swift-ci Please smoke test. |
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👍 We should cherry-pick this into the 4.2 branch, too |
stephentyrone
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Jun 29, 2018
…ang#17627) The function's definition is "Returns a random value that is less than the given upper bound," which cannot possibly be satisfied with upperBound == 0; previously the function returned zero, which was a bug.
airspeedswift
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Jul 2, 2018
#17631) The function's definition is "Returns a random value that is less than the given upper bound," which cannot possibly be satisfied with upperBound == 0; previously the function returned zero, which was a bug.
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The function's definition is "Returns a random value that is less than the given upper bound," which cannot possibly be satisfied with
upperBound == 0; previously the function returned zero, which was a bug.Resolves SR-8143.