std::quick_exit (3) - Linux Manuals
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
This section is incomplete
Reason: no example
at_quick_exit registers a function to be called on quick_exit invocation