comment convertir UnsafeMutablePointer <UnsafeMutablePointer <Int8>?> En UnsafeMutablePointer <UnsafeMutablePointer <Int8>>!

Question

J'utilise swift 4.0 pour réécrire main.swift de mon application iOS. Et ceci est mon main.swift:

UIApplicationMain(CommandLine.argc, 
       CommandLine.unsafeArgv 
       NSStringFromClass(MyAPP.self), 
       NSStringFromClass(AppDelegate.self)) 

il y a une erreur de compilation ici:

Cannot convert value of type 'UnsafeMutablePointer<UnsafeMutablePointer<Int8>?>' to expected argument type 'UnsafeMutablePointer<UnsafeMutablePointer<Int8>>!' 

Quelqu'un sait comment convertir UnsafeMutablePointer<UnsafeMutablePointer<Int8>?>-UnsafeMutablePointer<UnsafeMutablePointer<Int8>>! ici?

Answer 1

S'il vous plaît vérifier:

UIApplicationMain( 
    CommandLine.argc, 
    UnsafeMutableRawPointer(CommandLine.unsafeArgv) 
     .bindMemory( 
      to: UnsafeMutablePointer<Int8>.self, 
      capacity: Int(CommandLine.argc) 
     ), 
    NSStringFromClass(MyAPP.self), 
    NSStringFromClass(AppDelegate.self) 
)