Function Rf_allocMatrix 

pub unsafe fn Rf_allocMatrix(
    sexptype: SEXPTYPE,
    nrow: c_int,
    ncol: c_int,
) -> SEXP

Checked wrapper for Rf_allocMatrix. Calls Rf_allocMatrix_unchecked and routes through with_r_thread. Generated from source location line 2132, column 12. Generated from source file miniextendr-api/src/ffi.rs.