Function Rf_allocMatrix_unchecked 

pub unsafe extern "C-unwind" fn Rf_allocMatrix_unchecked(
    sexptype: SEXPTYPE,
    nrow: c_int,
    ncol: c_int,
) -> SEXP

Unchecked FFI binding for Rf_allocMatrix. Generated from source location line 2132, column 12. Generated from source file miniextendr-api/src/ffi.rs.