rshift(3F) — A/UX 0.7



     bool(3F)                                                 bool(3F)



     NAME
          and, or, xor, not, lshift, rshift - FORTRAN bitwise boolean
          functions

     SYNOPSIS
          integer i, j, k
          real a, b, c
          double precision dp1, dp2, dp3

          k = and(i, j)
          c = or(a, b)
          j = xor(i, a)
          j = not(i)
          k = lshift(i, j)
          k = rshift(i, j)

     DESCRIPTION
          The generic intrinsic boolean functions and, or, and xor
          return the value of the binary operations on their
          arguments.  not is a unary operator returning the one's
          complement of its argument.  lshift and rshift return the
          value of the first argument shifted left or right,
          respectively, the number of times specified by the second
          (integer) argument.

          The boolean functions are generic, i.e., defined for all
          data types as arguments and return values.  Where required,
          the compiler generates appropriate type conversions.

     NOTE
          Although defined for all data types, use of boolean
          functions on non-integer data is not productive.

     BUGS
          The implementation of the shift functions may cause large
          shift values to deliver unexpected results.



















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