[Rd] plot(x,y) core dump

[Paul Murrell]

Hi

Rf_allocNewX11DeviceDesc is called by newX11DeviceDriver and the latter 
needs to check the value returned.  I think Brian Ripley has made a fix 
for this problem in the development version of R.  The first few lines 
of newX11DeviceDriver now look like ...

     newX11Desc *xd;
     char *fn;

     xd = Rf_allocNewX11DeviceDesc(pointsize);
     if(!xd) return FALSE;

Unfortunately, your next problem may be that you can't start an X11 
device (it looks like you are failing to allocate memory for the device).

Paul


Liao, Kexiao wrote:
> Dear R Development Team,
> 
>    I compile R-1.9.1 on AIX 5.2 under 2.9-aix51-020209, and xlf 7.1. In
> order to let R compile successfully under gcc 2.9, I have to change one
> C statement of file(RHOME//src/modules/X11/devX11.c) line 1768 from
> "retrun FALSE" to "retrun NULL", following is C code snapshot:
> 
>  
> 
> newX11Desc * Rf_allocNewX11DeviceDesc(double ps)
> 
> {
> 
>     newX11Desc *xd;
> 
>     /* allocate new device description */
> 
>     if (!(xd = (newX11Desc*)calloc(1, sizeof(newX11Desc))))
> 
>         return NULL;
> 
>  
> 
>     /* From here on, if we need to bail out with "error", */
> 
>     /* then we must also free(xd). */
> 
>  
> 
>     /*  Font will load at first use.  */
> 
>  
> 
>     if (ps < 6 || ps > 24) ps = 12;
> 
>     xd->fontface = -1;
> 
>     xd->fontsize = -1;
> 
>     xd->basefontface = 1;
> 
>     xd->basefontsize = ps;
> 
>     xd->handleOwnEvents = FALSE;
> 
>     xd->window = (Window) NULL;
> 
>  
> 
>     return(xd);
> 
> }
> 
>  
> 
> However I got core dump while I try to use plot() from R:
> 
>  
> 
>  
> 
> R : Copyright 2004, The R Foundation for Statistical Computing
> 
> Version 1.9.1  (2004-06-21), ISBN 3-900051-00-3
> 
>  
> 
> R is free software and comes with ABSOLUTELY NO WARRANTY.
> 
> You are welcome to redistribute it under certain conditions.
> 
> Type 'license()' or 'licence()' for distribution details.
> 
>  
> 
> R is a collaborative project with many contributors.
> 
> Type 'contributors()' for more information and
> 
> 'citation()' on how to cite R in publications.
> 
>  
> 
> Type 'demo()' for some demos, 'help()' for on-line help, or
> 
> 'help.start()' for a HTML browser interface to help.
> 
> Type 'q()' to quit R.
> 
>  
> 
> 
>>help.start()
> 
> 
> Making links in per-session dir ...
> 
> If /usr/bin/netscape is already running, it is *not* restarted, and
> 
>     you must switch to its window.
> 
> Otherwise, be patient ...
> 
> 
>>x <- rnorm(50)
> 
> 
>>y <- rnorm(x)
> 
> 
>>plot(x,y)
> 
> 
> Illegal instruction (core dumped)
> 
>  
> 
>  
> 
> Can anyone give me some suggestion? Thanks!
> 
>  
> 
>  
> 
> Kexiao
> 
>  
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-devel at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-devel


-- 
Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9 3737599 x85392
paul at stat.auckland.ac.nz
http://www.stat.auckland.ac.nz/~paul/