Description Declaration Definition See Also
R_NilValue
is a global (external) variable of type SEXP
.
R_NilValue
points to the C level implementation of R's
NULL
object.
1 | LibExtern SEXP R_NilValue; /* The nil object */
|
In Rinternals.h.
1 | GET_FREE_NODE(R_NilValue);
|
In memory.c.
NULL, NILSXP, TYPEOF
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