How to initialize NSString to NSMutableString?

Question

Is there any way to initialize NSString to NSMutableString? and also reverse order?

-(void)st:(NSString *)st
{
  NSMutableString str = st; // gives warning..         


        

Answer 1

Swift 2.0

For Swift users, the following works in Xcode 7.

var str : String = "Regular string"
var mutableStr : NSMutableString = NSMutableString(string: str)