HP Fortran Programmer's Reference (September 2007)

HP Fortran statements
INQUIRE
Chapter 10376
returns the following values, indicating the method of access:
ACTION= character-variable
returns the following values, indicating the direction of the transfer:
BLANK= character-variable
returns the type of blank control that is in effect. For information about
blank control, see the BLANK= specifier for the OPEN statement. The values
returned by the BLANK= specifier are:
DELIM= character-variable
Table 10-11
'SEQUENTIAL' File is connected for sequential
access.
'DIRECT' File is connected for direct
access.
'UNDEFINED' File is not connected.
Table 10-12
'READ' File is connected for reading
only.
'WRITE' File is connected for writing
only.
'READWRITE' File is connected for reading
and writing.
'UNDEFINED' File is not connected.
Table 10-13
'NULL' Null blank control is in effect.
'ZERO' Zero blank control is in effect.
'UNDEFINED' File is not connected for
formatted I/O.