code: def c_array(ctype, values):
      
      out = (ctype * len(values))()
      out[:] = values
      return out
docs: Create ctypes array from a Python array.
  
      Parameters
      ----------
      ctype : ctypes data type
          Data type of the array we want to convert to, such as mx_float.
  
      values : tuple or list
          Data content.
  
      Returns
      -------
      out : ctypes array
          Created ctypes array.
  
      Examples
      --------
      >>> x = mx.base.c_array(mx.base.mx_float, [1, 2, 3])
      >>> print len(x)
      3
      >>> x[1]
      2.0