stdatomic - Accessing uninitialized atomic private variable in c++ -

supposed have following class:

class { public: ... ... void incrementn() {++n_;} uint64_t getn() {return n_;}  private: std::atomic<uint64_t> n_; ... ...  }; 

assume initialize other variables in class, except n_ , not thread local storage, there no 0 initialization.

i create object of class a, , keep calling incrementn().

if @ point want value of n_, , call getn(), can cause load() routine atomic n_ crash?

the load uses memory_order_seq_cst default. see here: http://en.cppreference.com/w/cpp/atomic/memory_order.

as mentioned in comments, shouldn't give problems normal ints won't give. concerned overflow if uninitialised initial value large? see here possible consequences: https://www.owasp.org/index.php/integer_overflow