Swift - floor() Function
The Swift floor() function returns the next lowest integer value by rounding down the specified number, if necessary. In other words, it rounds the fraction DOWN of the given number.
Syntax
In Foundation framework, it is defined as follows:
public func floor(_ x: CGFloat) -> CGFloat public func floor(_ x: Float) -> Float public func floor(_ x: Float80) -> Float80 public func floor(_ __x: Double) -> Double
Parameters
x |
Specify a number. |
Return Value
Returns the next lowest integer value by rounding DOWN the specified number, if necessary.
Example:
In the example below, floor() function is used to round the fraction DOWN of the specified number.
import Foundation
print("floor(-10.2) = \(floor(-10.2))")
print("floor(-10.8) = \(floor(-10.8))")
print("floor(5.2) = \(floor(5.2))")
print("floor(5.8) = \(floor(5.8))")
The output of the above code will be:
floor(-10.2) = -11.0 floor(-10.8) = -11.0 floor(5.2) = 5.0 floor(5.8) = 5.0
❮ Swift Math Functions
