Index U

UBOUND function,  [+], [+]
  in pointer assignment, [+]
ULTRIX f77
  source program compatibility, [+]
Unambiguous generic references,  [+]
Unary operations,  [+]
Unary operators (+ and -),  [+]
  definition of, [+]
  form of, [+]
  order of precedence of, [+]
Unconditional
  DO statement, [+]
  GO TO statement, [+]
Undeclared names
  See Names
UNDEFINE directive,  [+]
UNDEFINED value
  for INQUIRE (SHARE)
     on WNT, W9*, [+]
Underscore character (_)
  in names, [+]
Unformatted data
  See also your user manual or programmer's guide
  specifying nonnative numeric format for
     on U*X, WNT, W9*, [+], [+]
     on VMS, [+], [+]
Unformatted I/O statements
  READ
     direct access, [+], [+]
     indexed (VMS), [+], [+]
     sequential, [+], [+]
  REWRITE, [+]
  using aggregate field references in, [+]
  WRITE
     direct access, [+], [+]
     indexed (VMS), [+], [+]
     sequential, [+], [+]
Unformatted records
  definition of, [+]
UNFORMATTED specifier
  in INQUIRE statements
     on U*X, WNT, W9*, [+]
     on VMS, [+]
UNFORMATTED value
  for INQUIRE (FORM)
     on U*X, WNT, W9*, [+]
     on VMS, [+]
  for OPEN (FORM)
     on U*X, WNT, W9*, [+]
     on VMS, [+]
Union declarations,  [+]
  compared to EQUIVALENCE statement, [+]
  initializing data in, [+]
  size of shared area, [+]
UNION statement,  [+]
  using to make record fields equivalent, [+]
Unit number
  assignment of, [+]
Units
  See Program unit
  See also Scoping units
UNIT specifier,  [+]
UNKNOWN value
  for OPEN (STATUS)
     on U*X, WNT, W9*, [+]
     on VMS, [+]
Unlocking records
  on U*X, WNT, W9*, [+]
  on VMS, [+]
UNLOCK statements
  on U*X, WNT, W9*, [+]
  on VMS, [+]
Unpacked array
  function to create, [+]
UNPACK function,  [+], [+]
UNROLL directive,  [+]
Unspecified storage unit,  [+]
Upper bounds
  function returning, [+]
Uppercase letters
  in character set, [+]
  treatment on compiler, [+]
Use association,  [+], [+]
User-defined
  data types
     See Derived data types
  elemental procedures, [+]
  pure procedures, [+]
USEROPEN specifier
  in OPEN statements
     on U*X, WNT, W9*, [+]
     on VMS, [+]
User-written subprograms
  for opening files
     on U*X, WNT, W9*, [+]
  types of, [+]
USE statement,  [+], [+]
  ONLY keyword in, [+]