From cppreference.com
| Defined in header <cstdlib>
|
||
[[noreturn]] void quick_exit( int exit_code ) noexcept;
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(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.
Parameters
| exit_code | - | exit status of the program |
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
See also
| causes abnormal program termination (without cleaning up) (function) | |
| causes normal program termination with cleaning up (function) | |
| registers a function to be called on std::exit() invocation (function) | |
(C++11) |
registers a function to be called on std::quick_exit invocation (function) |
C documentation for quick_exit
| |