settimeofday parameters

Question

Created Jun ’16

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I'm trying to execute the settimeofday function.

Here is the declaration of the function:

settimeofday(UnsafePointer<timeval>, UnsafePointer<timezone>)

I don't know how to read that. What do those parameters mean? What do I pass as arguments?

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Answer 1

Jun ’16

Accepted Answer

`UnsafePointer<T>` is a pointer type in Swift, pointer to T.

And `timeval` and `timezone` are C-structs imported to Swift.

Declare a variable of type T (in your case `T` is `timeval` or `timezone`), and pass it as an inout parameter, meaning prefix '&'.

        var tv = timeval()
        //setup tv.
        var tz = timezone()
        //setup tz.
        settimeofday(&tv, &tz)

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