std:: quick_exit

Causes normal program termination to occur without completely cleaning the resources.

Functions passed to std::at_quick_exit are called in reverse order of their registration. If an exception tries to propagate out of any of the functions, std::terminate is called. After calling the registered functions, calls std::_Exit ( exit_code ) .

Functions passed to std::atexit are not called.

Parameters

Return value

(none)

Example

#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";
}

quick_exit handler #2
quick_exit handler #1

See also