how to convert UnsafeMutablePointer?> to UnsafeMutablePointer>!

Question

I am using swift 4.0 to re-write main.swift of my iOS application. And this is my main.swift:

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

there's an compile error here:

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

AnyOne know how to convert UnsafeMutablePointer<UnsafeMutablePointer<Int8>?> to UnsafeMutablePointer<UnsafeMutablePointer<Int8>>! here?

Possible duplicate of [Xcode 8 beta 6: main.swift won't compile](https://stackoverflow.com/questions/39088928/xcode-8-beta-6-main-swift-wont-compile) — matt, Oct 01 '18 at 17:01

score 0 · Answer 1 · answered Feb 04 '21 at 09:05

0

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

answered Feb 04 '21 at 09:05

Pieohpah

1

2

Consider adding some description why your code solves the problem. – zhisme Feb 04 '21 at 09:44
UnsafeMutableRawPointer(CommandLine.unsafeArgv) is deprecated. – Pieohpah Feb 05 '21 at 06:59

score -3 · Accepted Answer · answered Sep 30 '17 at 06:36

-3

Please check :

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

answered Sep 30 '17 at 06:36

Vini App

7,339
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this is a deprecated answer – doozMen Apr 22 '20 at 10:52

how to convert UnsafeMutablePointer?> to UnsafeMutablePointer>!

2 Answers2