Question

Suppose I have a static variable declared inside a function in C.

If I call that function multiple times, does the static variable get re-allocated in memory every time the function is called?

If it does get re-allocated, why is the last value always maintained?

Example:

void add()
{
    static int x = 1;
    x++;
    printf("%d\n",x);
}

int main()
{
    add(); // return 2
    add(); // return 3
    add(); // return 4
}

Answer 1

No – static variables are basically globals that live within the local namespace.