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swiftfloating-pointintdoubleinfinity

How to find max value for Double and Float in Swift

Current learning Swift, there are ways to find max and min value for different kind of Integer like Int.max and Int.min.

Is there a way to find max value for Double and Float? Moreover, which document should I refer for this kind of question? I am currently reading Apple's The Swift Programming Language.

Solution

  • As of Swift 3+, you should use:

    CGFloat.greatestFiniteMagnitude
Double.greatestFiniteMagnitude
Float.greatestFiniteMagnitude