quick_exit
From cppreference.com
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.
Contents |
[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
| causes abnormal program termination (without cleaning up) (function) | |
| registers a function to be called on exit() invocation (function) | |
(C11) | registers a function to be called on quick_exit invocation (function) |
C++ documentation for quick_exit | |
