Use of uninitialised value of size 8

[AlekseiSolonkov]

Hi! I check memory with Memcheck and find next external errors (libOSRM 5.8 ver)
Use of uninitialised value of size 8
` in void std::__cxx11::basic_string<char, std::char_traits, std::allocator >::_M_construct<boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<char const*, 6, 8, char>, char> >(boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<char const*, 6, 8, char>, char>, boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<char const*, 6, 8, char>, char>, std::input_iterator_tag) in /traffic/traffic

1: void std::__cxx11::basic_string<char, std::char_traits, std::allocator >::_M_construct<boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<char const*, 6, 8, char>, char> >(boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<char const*, 6, 8, char>, char>, boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<char const*, 6, 8, char>, char>, std::input_iterator_tag) in /traffic/traffic
2: osrm::engine::encodeBase64[abi:cxx11](unsigned char const*, unsigned long) in /traffic/traffic
3: osrm::engine::Hint::ToBase64abi:cxx11 const in /traffic/traffic
4: osrm::engine::api::json::makeWaypoint(osrm::util::Coordinate, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, osrm::engine::Hint const&) in /traffic/traffic
5: osrm::engine::api::BaseAPI::MakeWaypoint(osrm::engine::PhantomNode const&) const in /traffic/traffic
6: osrm::engine::api::RouteAPI::MakeResponse(osrm::engine::InternalManyRoutesResult const&, osrm::util::json::Object&) const in /traffic/traffic
7: osrm::engine::plugins::ViaRoutePlugin::HandleRequest(osrm::engine::datafacade::ContiguousInternalMemoryDataFacadeBase const&, osrm::engine::RoutingAlgorithmsInterface const&, osrm::engine::api::RouteParameters const&, osrm::util::json::Object&) const in /traffic/traffic
8: osrm::engine::Engineosrm::engine::routing_algorithms::corech::Algorithm::Route(osrm::engine::api::RouteParameters const&, osrm::util::json::Object&) const in /traffic/traffic
9: main::{lambda(int, std::vector<Point, std::allocator >, bool, bool)#2}::operator()(int, std::vector<Point, std::allocator >, bool, bool) const in /traffic/traffic
10: std::_Function_handler<std::vector<ResponseOSRM, std::allocator > (int, std::vector<Point, std::allocator >, bool, bool), main::{lambda(int, std::vector<Point, std::allocator >, bool, bool)#2}>::_M_invoke(std::_Any_data const&, int&&, std::vector<Point, std::allocator >&&, bool&&, std::vector<Point, std::allocator >&&) in /traffic/traffic
11: std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> (), std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<std::vector<ResponseOSRM, std::allocator > >, std::__future_base::_Result_base::_Deleter>, std::_Bind_simple<std::function<std::vector<ResponseOSRM, std::allocator > (int, std::vector<Point, std::allocator >, bool, bool)> (int, std::vector<Point, std::allocator >, bool, bool)>, std::vector<ResponseOSRM, std::allocator > > >::_M_invoke(std::_Any_data const&) in /traffic/traffic
12: std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>, bool) in /traffic/traffic
13: __pthread_once_slow in /build/glibc-mXZSwJ/glibc-2.24/nptl/pthread_once.c:116
14: std::thread::_State_impl<std::_Bind_simple<std::__future_base::_Async_state_impl<std::_Bind_simple<std::function<std::vector<ResponseOSRM, std::allocator > (int, std::vector<Point, std::allocator >, bool, bool)> (int, std::vector<Point, std::allocator >, bool, bool)>, std::vector<ResponseOSRM, std::allocator > >::_Async_state_impl(std::_Bind_simple<std::function<std::vector<ResponseOSRM, std::allocator > (int, std::vector<Point, std::allocator >, bool, bool)> (int, std::vector<Point, std::allocator >, bool, bool)>&&)::{lambda()#1} ()> >::_M_run() in /traffic/traffic
15: /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.22
16: start_thread in /build/glibc-mXZSwJ/glibc-2.24/nptl/pthread_create.c:456
17: clone in /build/glibc-mXZSwJ/glibc-2.24/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:105
Uninitialised value was created by a stack allocation 1: osrm::engine::plugins::BasePlugin::GetPhantomNodes(osrm::engine::datafacade::BaseDataFacade const&, osrm::engine::api::BaseParameters const&) const in /traffic/traffic
`
Can this lead to a malfunction in a multithreaded environment?

[oxidase]

@AlekseiSolonkov memcheck shows a proper message about unused 3 bits in PhantomNode It is harmless, but adds some noice in a comparison of two hints as base64 strings.