Problem with .C
On 05/10/11 01:04, Grigory Alexandrovich wrote:
Hello,
I wrote a function in C, which works fine if called from the
main-function in C.
But as soon as I try to call this function from R like .C('foo',
as.double(x), as.integer(y)), the programm crashes.
I created a dll with the cmd command R --arch x64 CMD SHLIB foo.c and
loaded it into R with dyn.load().
What can be the cause of such behaviour?
Again, the C-funcion itself works, but not if called from R.
It's impossible to say, with such minimal information, but a reasonable
guess is that there is a problem with the declaration of "x" and "y" in
foo.c. These would (I think) need to be declared as double *, not double,
when foo is called from .C().
cheers,
Rolf Turner