[R-sig-hpc] multicore package and C/C++ code: any special care?

[Renaud Gaujoux]

Hi,

my package aims to be used in a multicore and/or computer-cluster 
environment.
I'm re-implementing part of the code in C++. Apparently it's running ok 
in multicore mode, but I want to be sure there is no potential problem 
with this, on any platform.
Is there any special things to worry about (thread-safe, memory, etc, ...)?
Thanks.

Bests,
Renaud

PS: even if there is nothing to worry about, I'd be happy to get some 
insights on the reason behind it.