isSwapNeeded

  isSwapNeeded method for scchannel objects

  Example
  TF=isSwapNeeded(obj)
      returns true if data in the Map.Data.Adc need to be byte swapped
      on the current platform, false otherwise

  isSwapNeeded should rarely be needed. If data are accessed through the
  scchannel/subsref or adcarray/subsref methods, byte swapping will be done
  automatically as required. Only, if you extract the memmapfile object
  (e.g. using get) will you need to know the byte order.