Predefined Values

CFNumber provides some predefined number values.

Topics

Constants

let kCFNumberNaN: CFNumber!

“Not a Number.” This value is often the result of an invalid operation, such as the square-root of a negative number.

let kCFNumberNegativeInfinity: CFNumber!

Designates a negative infinity value.

let kCFNumberPositiveInfinity: CFNumber!

Designates a positive infinity value.