Function checked_vec_option_u64_into_sexp 

pub fn checked_vec_option_u64_into_sexp(val: Vec<Option<u64>>) -> SEXP

Convert Vec<Option<u64>> to R integer vector in strict mode.

Walks the whole vector, batching every out-of-range Some into one panic instead of aborting at the first — see panic_strict_vec_batched.