iosswift

iOS: Convert UnsafeMutablePointer<Int8> to String in swift?

As the title says, what is the correct way to convert UnsafeMutablePointer to String in swift?

//lets say x = UnsafeMutablePointer<Int8> 

var str = x.memory.????

I tried using x.memory.description obviously it is wrong, giving me a wrong string value.

Solution

  • If the pointer points to a NUL-terminated C string of UTF-8 bytes, you can do this:

    import Foundation

let x: UnsafeMutablePointer<Int8> = ...
// or UnsafePointer<Int8>
// or UnsafePointer<UInt8>
// or UnsafeMutablePointer<UInt8>

let str = String(cString: x)