R devel - Mar 2007 - Incomplete valgrind instrumentation level documentation

The 'Writing R Extensions' manual, configure.ac, and the comment at
the top of memory.c suggests that there are valgrind instrumentation
levels 0, 1, 2 but I think the actual code has four levels.

   level 0 is no additional instrumentation

   level 1 marks uninitialized numeric, logical, integer vectors
           and R_alloc memory

   level 2 marks free memory (DATAPTR, STRING_PTR) and the protection
           stack as inaccessible

   level 3 marks SEXP as inaccessible
-- 
Martin Morgan
Bioconductor / Computational Biology
http://bioconductor.org

On Fri, 16 Mar 2007, Martin Morgan wrote:
> The 'Writing R Extensions' manual, configure.ac, and the comment at
> the top of memory.c suggests that there are valgrind instrumentation
> levels 0, 1, 2 but I think the actual code has four levels.
Yes, but only three of them work. Those are the ones that are documented.

 	-thomas

Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle