[Rd] mapply() gives seg fault (PR#8332)

pinard@iro.umontreal.ca pinard at iro.umontreal.ca
Sun Nov 20 22:01:42 CET 2005

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Hi, people.  Wandering in R archives, and seeing the message attached 
below, I noticed that:

   mapply(rep,times=1:4, MoreArgs=42)

still segfaults on R 2.2.0, and thought I should be a good citizen and 
report it, even if I do not have an actual problem with this. :-)

> version
platform i686-pc-linux-gnu
arch     i686             
os       linux-gnu        
system   i686, linux-gnu  
major    2                
minor    2.0              
year     2005             
month    10               
day      06               
svn rev  35749            
language R                

(By the way, in the output of "R.version", should all the spurious 
whitespace be kept at end of lines?)

François Pinard   http://pinard.progiciels-bpi.ca

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From: rpeng at jhsph.edu (Roger D. Peng)
Date: Tue Oct 14 18:10:52 2003
Subject: [R] mapply() gives seg fault
In-Reply-To: <a06002007bbb1c91c2d44@[]>
References: <a06002007bbb1c91c2d44@[]>
Message-ID: <3F8C1E93.7030903 at jhsph.edu>

I get this too on the released version.  I guess the problem is that the 
value passed to MoreArgs is not a list.  Maybe,

mapply(rep, times = 1:4, MoreArgs = list(42))

produces what you want?  At any rate, R shouldn't segfault so it looks 
like bug somewhere.


Robin Hankin wrote:

> Hello everybody.
> I've been experimenting with mapply().  Does anyone else have problems 
> with:
> R> mapply(rep,times=1:4, MoreArgs=42)
> (I get a seg fault).
> robin
> R> R.version
>          _
> platform powerpc-apple-darwin6.6
> arch     powerpc
> os       darwin6.6
> system   powerpc, darwin6.6
> status   beta
> major    1
> minor    8.0
> year     2003
> month    10
> day      02
> language R
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help


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