std::quick_exit
From cppreference.com
C++
Utilities library
|
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Program support utilities
| 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.
Contents |
[edit] Parameters
| exit_code | - | exit status of the program |
[edit] Return value
(none)
[edit] Example
Run this code
#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"; }
Output:
quick_exit handler #2 quick_exit handler #1
[edit] See also
| causes abnormal program termination (without cleaning up) (function) [edit] | |
| causes normal program termination with cleaning up (function) [edit] | |
| registers a function to be called on std::exit() invocation (function) [edit] | |
| (C++11) |
registers a function to be called on std::quick_exit invocation (function) [edit] |
| C documentation for quick_exit
| |
