Swift - rint() Function
The Swift rint() function returns an integral value by rounding up the specified number. If x falls exactly at the midway between two integers, the even integer is returned.
Syntax
In Foundation framework, it is defined as follows:
public func rint(_ x: CGFloat) -> CGFloat public func rint(_ x: Float) -> Float public func rint(_ x: Float80) -> Float80 public func rint(_ __x: Double) -> Double
Parameters
x |
Specify a value to round. |
Return Value
Returns an integral value by rounding up the x. If x falls exactly at the midway between two integers, the even integer is returned.
Example:
In the example below, rint() function is used to round the given number.
import Foundation
print("rint(10.4) = \(rint(10.4))")
print("rint(10.6) = \(rint(10.6))")
print("rint(10.5) = \(rint(10.5))")
print("rint(11.5) = \(rint(11.5))")
print("rint(12.5) = \(rint(12.5))")
The output of the above code will be:
rint(10.4) = 10.0 rint(10.6) = 11.0 rint(10.5) = 10.0 rint(11.5) = 12.0 rint(12.5) = 12.0
❮ Swift Math Functions
