/sys$common/syshlp/helplib.hlb FORTRAN, Error Messages, Compilation Errors, EXT_INVINTARG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SEVERITY:  I

  MESSAGE TEXT:  Extension to FORTRAN-77:  Nonstandard use of
  intrinsic function as actual argument

  EXPLANATION:  The FORTRAN-77 standard does not permit the use of
  type conversion (INT, DBLE, etc.), lexical relationship (LGE, LGT,
  etc.), or minimum or maximum functions (MIN, MAX, etc.) as actual
  arguments.