// https://godbolt.org/z/T4c1GnjY4
#include <iostream>
#include <thread>
#include <vector>
#include <exception>
using std::cout; using std::endl;
long fib(long n) { return n<=1 ? n : fib(n-1)+fib(n-2); }
void task1() { auto r = fib(40); cout << "fib(40)=" << r << endl; }
void main_program() {
std::thread th{ &task1 };
try {
std::vector data{ 0,1,2 };
data.at(666); // (ERR) triggers out_of_range
} catch(std::runtime_error &ex) { // does not match out_of_range
/* ... */ // handle specific error here
} catch( ... ) {
th.join();
throw; // continue error handling outside
}
th.join(); // waits after Okay or specific error
}
int main() {
try {
main_program();
} catch( ... ) {
std::cout << "An error has occurred\n";
}
}