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(OPEN 'FOO '(APPEND)) on TOPS-20
- To: BUG-LISP at MIT-AI
- Subject: (OPEN 'FOO '(APPEND)) on TOPS-20
- From: Jerry Roylance <GLR at MIT-AI>
- Date: Sun, 11 Jul 82 01:43:00 GMT
- Cc: GLR at MIT-AI
- Original-date: 10 July 1982 21:43-EDT
(OPEN 'FOO '(APPEND)) on TOPS-20 does not allow random access on the opened file.
The code opens the file in OF%APP (append mode) which
TOPS-20 must interpret as allowing only writes to the end of the file
and enforces that by prohibiting the user from moving the filepos.
The appropriate mode (see the OPENF JSYS) is OF%RD+OF%WR (read and write = update).
OPEN3E+2/ TRC 2, OF%APP+OF%WR+OF%RD
OPEN3E+2/ TRC 2, OF%RD
allows random access.
Would somebody please make this change or tell me how to do it?
Do I just edit MC:L;QIO > ?