The type of function objects

Macro object-like

CLOSXP is an object-like macro defining the SEXPTYPE type of functions, i.e., closure objects.

Declaration

#define CLOSXP 3 /* closures */

In Rinternals.h.

References

https://cran.r-project.org/doc/manuals/r-patched/R-ints.html#SEXPTYPEs

See also

SEXPTYPE, TYPEOF