Objective-C相当于UnsafePointer <cchar>

Question

我尝试在Objective-C上写下this tutorial上写的Swift代码。

我几乎把所有这些都写到了Objective-C，除了这部分：

let tokenChars = UnsafePointer<CChar>(deviceToken.bytes)

我的问题是如何将这部分从Swift写入Objective-C？

Answer 1

请记住，Objective-C是C的超集，所以你可以在这里找到答案：

Interacting with C APIs

C Syntax          | Swift Syntax
------------------+----------------------------
char, signed char | CChar
const Type *      | UnsafePointer<Type>

所以Swift UnsafePointer<CChar>是Objective-C const char *