From jmacdon at med.umich.edu  Fri Mar 31 22:23:00 2006
From: jmacdon at med.umich.edu (James MacDonald)
Date: Fri, 31 Mar 2006 15:23:00 -0500
Subject: [Rd] Segfault with too many menu items on Rgui
Message-ID: <s42d495f.003@med-gwia-02a.med.umich.edu>

Hi all,

In the CHANGES file for R-2.3.0alpha, there is the following
statement:

winMenuAdd() now has no limits on the number of menus or items, and
names are now limited to 500 (not 50) bytes.

However, I can reproducibly get a segfault using this (admittedly
silly) example:

for( i in 1:5) winMenuAdd(paste("Test", letters[i], sep=""))
for(i in 1:5) for(j in 1:24) winMenuAddItem(paste("Test", letters[i],
sep=""), as.character(j), paste(rep(letters[j], 4), collapse=""))

This is probably almost never a problem, but many Bioconductor packages
have vignettes that are added to a 'Vignettes' menu item. If you load
enough of these packages you will get a segfault.

> version
               _                                      
platform       i386-pc-mingw32                        
arch           i386                                   
os             mingw32                                
system         i386, mingw32                          
status         alpha                                  
major          2                                      
minor          3.0                                    
year           2006                                   
month          03                                     
day            29                                     
svn rev        37607                                  
language       R                                      
version.string Version 2.3.0 alpha (2006-03-29 r37607)

Best,

Jim



James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623


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[Rd] Segfault with too many menu items on Rgui
James MacDonald