I encountered a bug in the standard library while working on an exact conversion from floating point types to my rational type <https://gist.github.com/hooman/6e08c48e1e06ee19e06e5b09f664f9be> (when you pass a tolerance of zero)
SR-2868 <https://bugs.swift.org/browse/SR-2868>: If the value of the floating point type is a power of two, its `significandWidth` property returns a nonsense value, because the behavior or Builtin.int_cttz_IntNN (used in countTrailingZeros property) is undefined for zero. The test suite should have included such special cases and caught this one. > On Oct 3, 2016, at 9:08 AM, Dave Abrahams via swift-users > <swift-users@swift.org> wrote: > > on Sun Oct 02 2016, Hooman Mehr <swift-users-AT-swift.org > <http://swift-users-at-swift.org/>> wrote: > >>> On Oct 2, 2016, at 5:23 PM, Dave Abrahams via swift-users >>> <swift-users@swift.org <mailto:swift-users@swift.org>> wrote: >>> Presumably you mean:
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