[Rd] source definition for R_NilValue/return from TYPEOF(R_NilValue)

[Dan Kortschak]

Thanks, Ivan. That answers the question perfectly.

Dan

On Mon, 2019-12-16 at 13:33 +0300, Ivan Krylov wrote:
> On Sun, 15 Dec 2019 10:47:11 +0000
> Dan Kortschak <dan.kortschak using adelaide.edu.au> wrote:
>
> > I'd like to see the source definition of R_NilValue, but after
> > fair bit of searching I cannot find an obviously location for this.
> >
> > Would someone please point me in the right direction?
>
> As far as I understand, the assignment to R_NilValue happens in
> src/main/memory.c:
>
>
https://github.com/wch/r-source/blob/776929704cb4f9398f52805f48f2c93582ec3d38/src/main/memory.c#L2186
>
> (see the definition of GET_FREE_NODE(s) in the same file)
>
> Besides declaring R_NulValue as "extern" and assignments in void
> InitMemory(), there doesn't seem to be anything else.
>
--
CRICOS provider code 00123M