c++ - Stack runtime error -

#include <stack> #include <functional>  int main() {     std::stack<std::function<int()>> s;     s.push(main);     return s.top()(); } 

i following diagnostic:

result: runtime error        time: 0.04s    memory: 39704 kb     signal: 11 (sigsegv) 

what's going on here?

first, aren't allowed call main yourself. secondly, appears doing "what you'd expect" , making call, you're causing infinite recursion uses stack space , overflows it.