std::quick_exit

#include <cstdlib>
#include <iostream>
template<int N>
void quick_exit_handler()
{
    std::cout << "quick_exit handler #" << N << std::endl; // flush is intended
}
void at_exit_handler()
{
    std::cout << "at_exit handler\n";
}
int main()
{
    if (std::at_quick_exit(quick_exit_handler<1>) ||
        std::at_quick_exit(quick_exit_handler<2>))
    {
        std::cerr << "Registration failed\n";
        return EXIT_FAILURE;
    }
    std::atexit(at_exit_handler); // the handler will not be called
    struct R { ~R() { std::cout << "destructor\n"; } } resource;
    /*...*/
    std::quick_exit(EXIT_SUCCESS);
    std::cout << "This statement is unreachable...\n";
}