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    //! Extensions to `std::thread` for Windows.

    #![stable(feature = "thread_extensions", since = "1.9.0")]

    use os::windows::io::{RawHandle, AsRawHandle, IntoRawHandle};
    use thread;
    use sys_common::{AsInner, IntoInner};

    #[stable(feature = "thread_extensions", since = "1.9.0")]
    impl<T> AsRawHandle for thread::JoinHandle<T> {
        fn as_raw_handle(&self) -> RawHandle {
            self.as_inner().handle().raw() as *mut _
        }
    }

    #[stable(feature = "thread_extensions", since = "1.9.0")]
    impl<T> IntoRawHandle for thread::JoinHandle<T>  {
        fn into_raw_handle(self) -> RawHandle {
            self.into_inner().into_handle().into_raw() as *mut _
        }
    }

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