From: Prof Brian Ripley (firstname.lastname@example.org)
Date: Thu 13 May 2004 - 20:46:25 EST
On Thu, 13 May 2004, Ingmar Visser wrote:
> Dear Prof Ripley,
> Thanks for your answer.
> On 5/12/04 2:52 PM, "Prof Brian Ripley" <email@example.com> wrote:
> > 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.
> Can I invoke compile options if/when I use R cmd install etc. to install
By using a Makevars file: see Writing R Extensions.
> The situation is this: I pass arguments from R to C, then most of these are
> passed on to a Fortran routine, and then the same way back.
> I suppose that at the end of the C-routine the arguments are copied back to
> R. Where/who or what decides what the length of a vector is that is passed
> back to R?
You do. It's the same length as you passed in.
-- Brian D. Ripley, firstname.lastname@example.org 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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