swift - How to get the smallest possible Float in Swift

Question

I want to find, programmatically, and portably, the smallest Float possible.

By smallest I mean the smallest > 0 Float. Any way to achieve that ?

标签： swiftfloating-point

Answer 1

查找Float我发现的文档：Float.leastNonzeroMagnitude

最小的正数。

此值比较小于或等于所有正数，但大于零。如果类型支持次正规值， leastNonzeroMagnitude则小于leastNormalMagnitude；否则他们是平等的。