[swift-users] Casting function pointers

[Rien]

I have a case where a callback has the following signature:

@convention(c) (_ ssl: OpaquePointer?, _ num: UnsafeMutablePointer<Int32>?, _ arg: UnsafeMutableRawPointer?) -> Int32

But to install this callback I have to use a c-function with this signature:

SSL_CTX_callback_ctrl (OpaquePointer!, Int32, (() -> Void)! )

Is it possible to cast the first function to the second? If so, how?



Regards,
Rien

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