Path: utzoo!utgpu!attcan!uunet!husc6!rutgers!ucsd!ucbvax!VENUS.YCC.YALE.EDU!LEICHTER
From: LEICHTER@VENUS.YCC.YALE.EDU ("Jerry Leichter ", LEICHTER-JERRY@CS.YALE.EDU)
Newsgroups: comp.os.vms
Subject: re: ftell & fseek
Message-ID: <8808031204.AA26428@ucbvax.berkeley.edu>
Date: 31 Jul 88 20:13:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 17


	I was working on adapting a C program, currently running under UNIX,
	to VMS.  I had some problems with the use of "ftell" and "fseek" .
	After a call to "fseek" and a number 'n' of calls to "fgetc" are done,
	the next "ftell" don't return the actual position ( n bytes after the
	last "fseek"), but return the position of the last "fseek".  I think
	that could be some problems into the implementation of "fseek" and
	"getc" so that the pointer to the position into the file is not
	correctly handled by this functions.

On VMS, files may be record- or stream-oriented.  A record-oriented file,
which is what you get by default, permits seeking only to the beginning of
a record.

This is fully discussed in the VAX C documentation.

							-- Jerry