Function REAL_ELT 

pub unsafe fn REAL_ELT(x: SEXP, i: R_xlen_t) -> f64

Checked wrapper for REAL_ELT. Calls REAL_ELT_unchecked and routes through with_r_thread. Generated from source location line 589, column 12. Generated from source file miniextendr-api/src/sys.rs.