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(* Copyright (C) 2009 Free Software Foundation, Inc. *)
(* This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with gm2; see the file COPYING. If not, write to the Free Software
Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *)
MODULE filepos;
FROM SYSTEM IMPORT ADR;
IMPORT RndFile, IOChan, ChanConsts, SWholeIO, STextIO;
FROM libc IMPORT exit ;
(*
TestSeek -
*)
PROCEDURE TestSeek (a: ARRAY OF CHAR; n: CARDINAL) ;
VAR
pos: CARDINAL;
BEGIN
RndFile.IOChan.RawWrite(c, ADR(a), LENGTH(a));
pos := RndFile.CurrentPos(c);
SWholeIO.WriteCard(pos,1); STextIO.WriteLn;
IF pos#n
THEN
exit(1)
END
END TestSeek ;
VAR
c : IOChan.ChanId;
res : ChanConsts.OpenResults;
BEGIN
RndFile.OpenClean(c, "test.txt", RndFile.write, res);
IF res=ChanConsts.opened
THEN
TestSeek('a', 1) ;
TestSeek('bc', 3) ;
TestSeek('def', 6) ;
TestSeek('ghijklmnopqrstuvwxyz', 26)
END ;
RndFile.Close(c)
END filepos.
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