Displaying 2 results from an estimated 2 matches for "get_free_nod".
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get_free_node
2019 Dec 15
4
source definition for R_NilValue/return from TYPEOF(R_NilValue)
Hello,
for reasons I want to know the return value of TYPEOF(R_NilValue), I
expect it to be NILSXP, but I can't find this documented anywhere.
Ideally, 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?
thanks
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CRICOS provider code 00123M
2019 Dec 16
0
source definition for R_NilValue/return from TYPEOF(R_NilValue)
...usly 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.
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Best regards,
Ivan