XL Fortran Enterprise Edition for AIX : User's Guide - IBM

intxor | nointxor
Treats .XOR. as a logical binary intrinsic operator. It has a precedence
equivalent to the .EQV. and .NEQV. operators and can be extended with
an operator interface. (Because the semantics of .XOR. are identical to
those of .NEQV., .XOR. does not appear in the Fortran 90 or Fortran 95
language standard.)
Otherwise, the .XOR. operator is only recognized as a defined operator.
The intrinsic operation is not accessible, and the precedence depends on
whether the operator is used in a unary or binary context.
leadzero | noleadzero
Produces a leading zero in real output under the D, E, L, F, and Q edit
descriptors.
oldboz | nooldboz
Turns blanks into zeros for data read by B, O, and Z edit descriptors,
regardless of the BLANK= specifier or any BN or BZ control edit
descriptors. It also preserves leading zeros and truncation of too-long
output, which is not part of the Fortran 90 or Fortran 95 standard.
persistent | nopersistent
Saves the addresses of arguments to subprograms with ENTRY statements
in static storage, for compatibility with XL Fortran Version 2. This is an
implementation choice that has been changed for increased performance.
softeof | nosofteof
Allows READ and WRITE operations when a unit is positioned after its
endfile record unless that position is the result of executing an ENDFILE
statement. This suboption reproduces a FORTRAN 77 extension of earlier
versions of XL Fortran that some existing programs rely on.
Related Information
See “Avoiding or Fixing Upgrade Problems” on page 25.
262 XL Fortran Enterprise Edition for AIX : User’s Guide