   /// appropriately interpreted by C varargs.
   @_inlineable // FIXME(sil-serialize-all)
   public var _cVarArgEncoding: [Int] {
-    return _encodeBitsAsWords(CUnsignedInt(self))
+    return _encodeBitsAsWords(_VAUInt(self))
   }
 }
 

  }
}

#if arch(x86_64)

/// An object that can manage the lifetime of storage backing a
/// `CVaListPointer`.


extension Bool : CVarArg {
  public var _cVarArgEncoding: [Int] {
    return _encodeBitsAsWords(_VAInt(self ? 1:0))
  }
}

