An error handling operation for checking of an array access in program code is modified during compilation thereof. An unbalanced signal terminal and balanced signal terminals are provided for the surface acoustic wave filter unit. An elongated sensor housing is mounted upon the elbow. The correlation attributes from the first and second column are compared and similarities between the first and second column are identified on the basis of the comparison. A driver member of a linear drive system is operatively connected to the movable panel. A similar approach, using separate mappings, may also be used to prevent software modules in one execution environment from accessing the private disk space or other secondary storage of another execution environment.