Open Watcom FORTRAN 77 Language Reference

FORTRAN Statements
Inquire by file: The value .TRUE. is assigned if the specified file is connected to a unit;
otherwise the value .FALSE. is assigned.
Inquire by unit: The value .TRUE. is assigned if the specified unit is connected to a file;
otherwise the value .FALSE. is assigned.
NUMBER = num
num is an integer variable or integer array element that is assigned the value of the unit
number to which the file is connected. If no unit is connected to the file then num becomes
undefined.
NAMED = nmd
nmd is a logical variable or logical array element name that is assigned the value .TRUE. if
the file has a name; otherwise the value .FALSE. is assigned.
NAME = fn fn is a character variable or character array element. Open Watcom FORTRAN 77 also
permits fn to be a character substring.
It is assigned the name of the file, if the file has a name; otherwise it becomes undefined.
The file name that is returned need not be the same as that given in a FILE= specifier but it
must be suitable for use in the FILE= specification of an OPEN statement (e.g., the file
name returned may have additional system qualifications attached to it).
ACCESS = acc
acc is a character variable or character array element.
permits acc to be a character substring.
Open Watcom FORTRAN 77 also
It is assigned the value ’SEQUENTIAL’ if the file is connected for sequential access. It is
assigned the value ’DIRECT’ if the file is connected for direct access. It is assigned an
undefined value if there is no connection.
SEQUENTIAL = seq
seq is a character variable or character array element.
permits seq to be a character substring.
Open Watcom FORTRAN 77 also
It is assigned the value ’YES’ if SEQUENTIAL is included in the set of allowed access
methods for the file, the value ’NO’ if SEQUENTIAL is not included in the set of allowed
access methods for the file, or ’UNKNOWN’ if Open Watcom FORTRAN 77 is unable to
determine whether or not SEQUENTIAL is included in the set of allowed access methods
for the file.
DIRECT = dir dir is a character variable or character array element.
permits dir to be a character substring.
Open Watcom FORTRAN 77 also
It is assigned the value ’YES’ if DIRECT is included in the set of allowed access methods
for the file, the value ’NO’ if DIRECT is not included in the set of allowed access methods
for the file, or ’UNKNOWN’ if Open Watcom FORTRAN 77 is unable to determine
whether or not DIRECT is included in the set of allowed access methods for the file.
FORM = fm fm is a character variable or character array element. Open Watcom FORTRAN 77 also
permits fm to be a character substring.
INQUIRE Statement 95