Function cpp_std::stoull_string_usize

pub unsafe fn stoull_string_usize(
    str: impl CastInto<Ref<String>>, 
    idx: impl CastInto<MutPtr<usize>>
) -> c_ulonglong

Calls C++ function: unsigned long long std::stoull(const std::basic_string<char, std::char_traits<char>, std::allocator<char>>& __str, std::size_t* __idx = …).