quick_exit
From cppreference.com
C
Concurrency support (C11)
Program support utilities
Program termination
Unreachable control flow
(C23)
Communicating with the environment
(C11)
Memory alignment query
(C23)
Signals
Signal types
Non-local jumps
Types
Defined in header
<stdlib.h>
_Noreturn void quick_exit( int exit_code );
(since C11) (until C23)
[[noreturn]] void quick_exit( int exit_code );
(since C23)
Causes normal program termination to occur without completely cleaning the resources.
Functions passed to at_quick_exit are called in reverse order of their registration. After calling the registered functions, calls _Exit (exit_code).
Functions passed to atexit or signal handlers passed to signal are not called.
[edit] Parameters
exit_code
-
exit status of the program
[edit] Return value
(none)
[edit] Example
Run this code
#include <stdlib.h> #include <stdio.h> void f1(void) { puts ("pushed first"); fflush (stdout ); } void f2(void) { puts ("pushed second"); } void f3(void) { puts ("won't be called"); } int main(void) { at_quick_exit (f1); at_quick_exit (f2); atexit (f3); quick_exit(0); }
Output:
pushed second pushed first
[edit] References
- C17 standard (ISO/IEC 9899:2018):
- 7.22.4.7 The quick_exit function (p: 257)
- C11 standard (ISO/IEC 9899:2011):
- 7.22.4.7 The quick_exit function (p: 353)
[edit] See also
C++ documentation for quick_exit