Expand description
The SEXP newtype and inherent methods.
The SEXP newtype and its inherent methods.
SEXP is the central pointer type for R values. It’s a thin newtype over
*mut SEXPREC that implements Send/Sync for cross-thread plumbing
(the pointed-to data must still only be touched on R’s main thread).
For the broader vocabulary of safe SEXP accessors, see crate::sexp_ext::SexpExt.