ios - 无法使用类型为“(UInt32, UnsafePointer, UInt, [CChar], Int, UnsafeMutablePointer) 的参数列表调用 'CCHmac'

Question

我将 xCode 和/或 swift 1.0 更新为 1.2，但出现了很多错误，

我知道 Swift 1.2 中的一些方法已更新/更改，因此我开始将我的整个项目更新到 Swift 1.2。我被困在这条线上:

CCHmac(CCHmacAlgorithm(kCCHmacAlgSHA1), cKey, strlen(cKey), str!, strLen, result)

抛出错误 Cannot invoke 'CCHmac' with an argument list of type '(UInt32, UnsafePointer<Int8>, UInt, [CChar], Int, UnsafeMutablePointer<CUnsignedChar>)'

这是我的代码

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 let str = cred.cStringUsingEncoding(NSUTF8StringEncoding)
        let strLen:Int = Int(cred.lengthOfBytesUsingEncoding(NSUTF8StringEncoding))
        let digestLen = Int(CC_SHA1_DIGEST_LENGTH)
        let result = UnsafeMutablePointer<CUnsignedChar>.alloc(digestLen)
        let objcKey = key as NSString
        let keyStr = Key.cStringUsingEncoding(NSUTF8StringEncoding)
        let keyLen:Int = Int(Key.lengthOfBytesUsingEncoding(NSUTF8StringEncoding))

        var st:NSString = dataFromHexadecimalString(Key)!
        let cKey = st.cStringUsingEncoding(NSUTF8StringEncoding)


        CCHmac(CCHmacAlgorithm(kCCHmacAlgSHA1), cKey, strlen(cKey), str!, strLen, result)
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注意:我改了keyLen和 strLen来自 Uint to Int但它仍然抛出相同的错误。

Answer 1

我解决了它只是将 strlen(cKey) 转换为 int 就像 Int(strlen(cKey))

整行看起来是

CCHmac(CCHmacAlgorithm(kCCHmacAlgSHA1), cKey, Int(strlen(cKey)), str!, strLen, result)