HUGE (number)

  Class:  Inquiry function - Generic

  Returns the largest number in the model representing the same type
  and kind type parameter as the argument.

  The argument can be integer or real; it can be scalar or array
  valued.  The result type is scalar of the same type and kind type
  parameter as the argument.  The integer and real models are
  described in the HP Fortran for OpenVMS Language Reference Manual.

  Example:

  If X is REAL*4 type, HUGE (X) has the value (1 - 2**-24) x 2**128.