exit().cpp

#include <cstdlib>
#include <iostream>
using namespace std;

struct RAII {
    RAII() { cout << "ctor" << endl; }
    ~RAII() { cout << "dtor" << endl; }
};

RAII global; // dtor WILL be called!

int main(int argc, char** argv) {
    
    RAII a; // dtor will NOT be called!
    
    exit(7);
    
    return 0;
}