VMS Help FORTRAN, Intrinsic Procedures, ZEXT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  ZEXT (integer)

  A function that returns the value of the argument, zero extended.
  +------+---------+----------+------------+-------------+
  | Args | Generic | Specific |  Argument  | Result Type |
  +------+---------+----------+------------+-------------+
  |  1   |  ZEXT   | IZEXT    | LOGICAL*1  | INTEGER*2   |
  |      |         | IZEXT    | LOGICAL*2  | INTEGER*2   |
  |      |         | IZEXT    | INTEGER*2  | INTEGER*2   |
  |      |         | JZEXT    | LOGICAL*1  | INTEGER*4   |
  |      |         | JZEXT    | LOGICAL*2  | INTEGER*4   |
  |      |         | JZEXT    | LOGICAL*4  | INTEGER*4   |
  |      |         | JZEXT    | INTEGER*2  | INTEGER*4   |
  |      |         | JZEXT    | INTEGER*4  | INTEGER*4   |
  +------+---------+----------+------------+-------------+