Function Rf_charIsASCII 

pub unsafe fn Rf_charIsASCII(x: SEXP) -> Rboolean

Checked wrapper for Rf_charIsASCII. Calls Rf_charIsASCII_unchecked and routes through with_r_thread. Generated from source location line 328, column 12. Generated from source file miniextendr-api/src/sys.rs.