Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!news.cs.indiana.edu!ux1.cso.uiuc.edu!orion!ignacij
From: ignacij@orion (Ignacy Misztal)
Newsgroups: comp.lang.fortran
Subject: writing to nonempty file
Summary: In RS/6000, after opening nonempty file, old records are added
Keywords: OPEN, WRITE,RS/6000
Message-ID: <ignacij.665698710@orion>
Date: 4 Feb 91 20:18:30 GMT
Sender: news@ux1.cso.uiuc.edu (News)
Organization: University of Illinois at Urbana
Lines: 9

In most compilers that I use, opening and writing to an existing file
results in overwriting the old contents. Not so in the IBM RS/6000, where
records are appended at the end of the file.  Everything is normal when one
rewinds the file right after the open statement. Which is the correct
semantics in view of standard Fortran 77?

Ignacy Misztal
University of Illinois
ignacy@uiuc.edu