| Defined in header <stdlib.h> | ||
|---|---|---|
int at_quick_exit( void (*func)() ); | (since C11) |
Registers the function pointed to by func to be called on quick program termination (via quick_exit).
Calling the function from several threads does not induce a data race. The implementation shall support the registration of at least 32 functions.
Parameters
| func | - | pointer to a function to be called on normal program termination |
Return value
0 if the registration succeeds, nonzero value otherwise.
Example
#include <stdlib.h>
#include <stdio.h>
void f1()
{
puts("pushed first");
fflush(stdout);
}
void f2()
{
puts("pushed second");
}
int main(void)
{
at_quick_exit(f1);
at_quick_exit(f2);
quick_exit(0);
}Output:
pushed second pushed first
References
- C11 standard (ISO/IEC 9899:2011):
- 7.22.4.3 The at_quick_exit function (p: 351)
See also
registers a function to be called on exit() invocation (function) | |
C++ documentation for at_quick_exit | |
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