Static Members in C++

Static Members in C++ — a practical guide to C++ static members with clear examples you can reuse in real projects.

C++ Tutorial Series (69/111). Prefer one article? Read the complete C++ tutorial.

Short description

Define static data members out-of-line (unless inline/constexpr).

Static

class Counter {
public:
    static int created;
    Counter() { ++created; }
};
int Counter::created = 0;