Re: New Guppi CVS Snapshot 06/29/2000

[Conrad Steenberg <conrad srl caltech edu>]

On Thu, 29 Jun 2000, Jon Trowbridge wrote:

> I've made a new snapshot of Guppi from CVS:
> 
> ftp://ftp.gnome.org/pub/guppi/Guppi-2000-06-29.tar.gz
> 
> It offers:
> 
> * Fixes a nasty memory corruption bug that caused scatter plots to
>   segfault.

Hmm, this doesn't fix the problem for me. This possibly doesn't occur on
other architechtures, but the Alpha is notoriously anal about division by
zero errors.

In this case we are doing 0 divided by 0 which triggers a SIGFPE.

HTH

Conrad

-----------------------
Here is the gdb output:

GnomeUI-WARNING **: Could not open help topics file NULL

Program received signal SIGFPE, Arithmetic exception.
0x2000336d820 in guppi_plot_canvas_pt2c (gpv=0x120313260, x=0, 
    y=7.2000000000000002, cx=0x11fffdcc0, cy=0x11fffdcc4)
    at guppi-plot-canvas.c:397
397	    *cx = (x - gpv->vis_x0)/(gpv->vis_x1 - gpv->vis_x0) * (x1 -
x0);
(gdb) display gpv->vis_x0
1: gpv->vis_x0 = 0
(gdb) display gpv->vis_x1
2: gpv->vis_x1 = 0
(gdb)