David,
On Jul 21, 2009, at 13:00 , David Scherrer wrote:
I'm wondering if there is a way to define a destructor function (to
free memory) for S4 class objects in analogy to C++?
The analogy doesn't work, because in C++ you have pass-by-reference
semantics, but in R you have pass-by-value.
if you are using external pointers, then R allows you to set a
finalizer function to be called on the pointer.
http://cran.r-project.org/doc/manuals/R-exts.html#External-pointers-and-weak-references
see examples in RODBC package.
and here too:
see the "connFinalizer" function
http://github.com/a
Hi all,
I'm wondering if there is a way to define a destructor function (to free
memory) for S4 class objects in analogy to C++?
rm() combined with gc() does not seem to be a good idea (Chambers, 2008).
So could it be done on the C/C++ level or is it even already available in
the "internals"?
Man
