[R] bus error macosx/off-topic

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed May 12 14:52:31 CEST 2004


These normally occur (at that point) from having written off one end of an
array. (If you are using .C/.Fortran, they try to copy back the
arguments.) Compiling with bounds checking turned on can help, at least
with Fortran.

On Wed, 12 May 2004, Ingmar Visser wrote:

> I'm building a package using C/C++ and Fortran code which usually runs fine.
> However I do get occasional bus errors around the time of exiting one of the
> C functions. 
> 
> Where do I need to be looking to solve this problem?
> Do bus errors stem from unmapped memory exceptions? How can I find out if
> that is what is happening while running R?


-- 
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




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