[Rd] (PR#10437) segfault on functions with 'source' attribute

ripley at stats.ox.ac.uk ripley at stats.ox.ac.uk
Mon Nov 19 16:50:27 CET 2007

I am not sure why you would want to do that, but the C code does assume 
source attributes were put there by R, and changing tests from !isNull to 
isString in a few places will fix that.

If there is a character vector "source" attribute it should be used: that 
is the point of such attributes.

On Mon, 19 Nov 2007, karl at huftis.org wrote:

> Full_Name: Karl Ove Hufthammer
> Version: 2.6.0
> OS: Linux (Fedora 7)
> Submission from: (NULL) (
> When viewing a function that has its 'source' attribute set to a boolean or a
> numeric, R crashes with a segfault. (Setting 'source' to a character vector does
> not make R crash, however.)
> Steps to reproduce:
>> attr(lm,"source")=FALSE
>> lm
> *** caught segfault ***
> address 0x18, cause 'memory not mapped'
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

More information about the R-devel mailing list