[Rd] longint

Duncan Murdoch
Wed, 15 Aug 2018 11:48:23 -0000

On 15/08/2018 7:08 AM, Benjamin Tyner wrote:
> Hi
>
> In my R package, imagine I have a C function defined:
>
>   ?? void myfunc(int *x) {
>   ????? // some code
>   ?? }
>
> but when I call it, I pass it a pointer to a longint instead of a
> pointer to an int. Could this practice potentially result in a segfault?

I don't think the passing would cause a segfault, but "some code"
might
be expecting a positive number, and due to the type error you could pass
in a positive longint and have it interpreted as a negative int.

Duncan Murdoch