swift - 如何在 swift 中声明 char *const argv[]

Question

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Answer 1

最简单的方法是让 Cocoa 为您形成 C 字符串:

let args = ["/usr/bin/printf","BBB"]
var cs = UnsafeMutablePointer<UnsafeMutablePointer<Int8>>.alloc(2)
for (ix,s) in args.enumerate() {
    cs[ix] = UnsafeMutablePointer<Int8>((s as NSString).UTF8String)
}
var cs2 : UnsafePointer<UnsafeMutablePointer<Int8>> = UnsafePointer(cs)

当心； cs 不包含副本。它的指针直接指向 args 中的字符串。