#include <iostream>
using namespace std;

class except1 {};
class except2 {};

void someFunction() {
    try {
        throw except1();
    } catch(const except1& e) {
        cout << "catched at someFunction\n";

        cout << "rethrowing\n";
        throw except2();    // this will be catched at main not here
        
    } catch(const except2& e2) {
        cout << "this wont be printed\n";
    }
}

int main(int argc, char* argv[]) {
    try {
        someFunction();
    } catch(const except2& e) {
        cout << "catched at main\n";
    }
}

/*output:

catched at someFunction
rethrowing
catched at main
*/