Passing an Array of Strings From Swift to C

Ole Begemann:

The type checker allows you topass aString value to anUnsafePointer<Int8> orUnsafePointer<UInt8> parameter. When you do that, the compiler will transparently create a buffer containing the UTF-8-encoded, null-terminated string, and pass a pointer to that buffer to the function.

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However, some C functions take an array of strings (achar ** orchar *[]), and there is no built-in support in Swift for passing a[String] to achar ** parameter.

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The full type of thestrlen function as imported by Swift looks like this[…]

C Programming LanguageLanguage DesignMemory ManagementProgrammingSwift Programming Language

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