pub(crate) fn r_stop(msg: &str) -> !Expand description
Raise an R error via Rf_error (longjmp). Crate-internal only.
Survives at the one guard site where there is no SEXP slot to return
through: crate::ffi_guard::guarded_ffi_call with GuardMode::CatchUnwind
(worker thread panic conversion).
User code should use panic!() (caught by the framework and converted to a
rust_error R condition) or the structured condition macros error!() /
warning!() / message!() / condition!().