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Path: utzoo!mnetor!seismo!topaz!hedrick
From: hedrick@topaz.RUTGERS.EDU (Charles Hedrick)
Newsgroups: net.emacs
Subject: OOPS in Gnu Emacs
Message-ID: <5433@topaz.RUTGERS.EDU>
Date: Mon, 28-Jul-86 04:46:36 EDT
Article-I.D.: topaz.5433
Posted: Mon Jul 28 04:46:36 1986
Date-Received: Mon, 28-Jul-86 19:18:23 EDT
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 19


In Gnu Emacs 17.57, on both Pyramid and Sun, we kept seeing "OOPS" on
the screen whenever there was a line wrap on a terminal with the "xn"
property in termcap.  The problem turns out to be in cm.c.  Look for
"fail:".  Change "return c" to "return BIG".  This is in the routine
to do cursor positioning by up and down commands (i.e. not direct
cursor positioning).  There is a case in which we can get to this code
with c not set to anything.  At this point in the cost, we always want
a large cost to be returned, so it is simplest just to return BIG,
instead of worrying about what is in c.

dodelta: 
    if (c == BIG) {		/* caint get thar from here */
fail:
	if (doit)
	    printf ("OOPS");
/* RUTGERS was return c - that fails in case goto fail, since c is not set */
	return BIG;
    }