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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 tostd::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, callsstd::_Exit(exit_code).
Functions passed tostd::atexit are not called.
Contents |
| exit_code | - | exit status of the program |
(none)
#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";returnEXIT_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 #2quick_exit handler #1
| causes abnormal program termination (without cleaning up) (function)[edit] | |
| causes normal program termination with cleaning up (function)[edit] | |
| registers a function to be called onstd::exit() invocation (function)[edit] | |
(C++11) | registers a function to be called onstd::quick_exit invocation (function)[edit] |
C documentation forquick_exit | |
