Defined in header <cstdlib>
[[noreturn]] void quick_exit( int exit_code ) noexcept;
(since C++11)

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.


exit_code - exit status of the program

Return value



#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> ) or
         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

causes abnormal program termination (without cleaning up)
causes normal program termination with cleaning up
registers a function to be called on std::exit() invocation
registers a function to be called on std::quick_exit invocation
C documentation for quick_exit

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