The type of S4, non-vector objects

Macro object-like

S4SXP is an object-like macro defining the SEXPTYPE type of S4, non-vector objects.

Declaration

#define S4SXP 25 /* S4, non-vector */

In Rinternals.h.

References

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

See also

SEXPTYPE, TYPEOF