atexit
From cppreference.com
Defined in header <stdlib.h>
|
||
int atexit( void (*func)(void) ); |
||
Registers the function pointed to by func
to be called on normal program termination (via exit() or returning from main()
). The functions will be called in reverse order they were registered, i.e. the function registered last will be executed first.
The same function may be registered more than once.
atexit
is thread-safe: calling the function from several threads does not induce a data race.
The implementation is guaranteed to support the registration of at least 32 functions. The exact limit is implementation-defined.
Parameters
func | - | pointer to a function to be called on normal program termination |
Return value
0 if the registration succeeds, nonzero value otherwise.
Example
Run this code
Output:
pushed second pushed first
References
- C11 standard (ISO/IEC 9899:2011):
- 7.22.4.2 The atexit function (p: 350)
- C99 standard (ISO/IEC 9899:1999):
- 7.20.4.2 The atexit function (p: 315)
- C89/C90 standard (ISO/IEC 9899:1990):
- 4.10.4.2 The atexit function
See also
(C11) |
registers a function to be called on quick_exit invocation (function) |