HP Fortran Programmer's Reference

HP Fortran statements
OPEN
OPEN
Connects file to a unit.
Syntax
OPEN (io-specifier-list)
io-specifier-list
[UNIT=]unit
ACCESS=character-expression
Table 10-33
ACTION=character-expression
376
is a list of the following comma-separated I/O specifiers:
specifies the unit to connect to an external file. unit must be an integer
expression that evaluates to a number greater than 0. If the optional
keyword UNIT= is omitted, unit must be the first item in
io-specifier-list.
specifies the method of file access. character-expression can be one of the
following arguments:
'DIRECT' Open file for direct access.
'SEQUENTIAL' Open file for sequential access
(default).
' POSITION=
APPEND'
Table 10-34
To open a file for append (to
positionthefilejustbeforethe
end-of-file record)
specifies the allowed data-transfer operations. character-expression can
be one of the following arguments:
'READ' Do not allow WRITE and
ENDFILE statements.
'WRITE' Do not allow READ statements.
Chapter 10