Thanks Roger, Simon, Reid,
It's indeed trivial, if you stop to believe that S4 provides any type of
type safety. However, having in mind all the arguments why S4, and that
it was designed in order to incorporate type safety on both the R and C
side I was not expecting that when trying for th
You have to coerce to numeric yourself if that's what you want. Eg in the R
code, as.numeric(1:12) rather than 1:12. Or check the type first in C with
TYPEOF before doing NUMERIC_POINTER or INTEGER_POINTER (the difference is
that the two do different casts; they both point a fixed offset into the R
Eryk,
On Sep 13, 2005, at 2:26 PM, nwew wrote:
> printf("%f\n",NUMERIC_POINTER(mat)[1]);
> [...]
> However it prints
> 0.
> if [EMAIL PROTECTED] are integers ( [EMAIL PROTECTED]<-matrix(1:12,3,4) ).
>
> Can anyone explain it to me why?
> I thought that NUMERIC_POINTER makes it clear that i ex
On Tue, 13 Sep 2005, nwew wrote:
> Dear R-developers,
>
> Using .Call I pass a S4 class with e.g. the following class definition:
>
> setClass("mmatrix",representation(
>data="matrix")
> )
>
> On the "C side" i do
> mat = GET_SLOT(vs,install("data"));
> and then:
> printf("%f\n",NUMERIC_POI
