text() with large cex parameter crashes X11() (PR#553)

X-Priority: 3 (Normal)
Date: Tue, 23 May 2000 11:12:11 +0200 (CEST)
From: Martyn Plummer <plummer@iarc.fr>
To: Ben Bolker <ben@zoo.ufl.edu>, Uwe Ligges 

Subject: Re: [Rd] text() with large cex parameter crashes X11() (PR#553)
Cc: R-bugs@biostat.ku.dk, r-devel@stat.math.ethz.ch

Well, I wasn't wrong. Here's R with DEBUG_X11 switched on

plot(1,1,type="n")

loading:
-*-helvetica-medium-r-*-*-12-*-*-*-*-*-*-*
success

points(1,1,pch="A", cex=10)

loading:
-*-helvetica-medium-r-*-*-120-*-*-*-*-*-*-*
failure
loading:
-*-helvetica-medium-r-*-*-34-*-*-*-*-*-*-*
failure

Program received signal SIGSEGV, Segmentation fault.
0x8126336 in SetFont (face=1, size=120, dd=0x8251168) at devX11.c:940
940             XSetFont(display, xd->wgc, xd->font->fid);
(gdb) p xd->font
$1 = (XFontStruct *) 0x0

RLoadFont ignores the fact that it has failed to load a font
and returns a null pointer. 

If this works for you it is perhaps because you have the size 34 font
(the last resort) on your system.

R-devel gives the same result.