at_quick_exit
Defined in header <stdlib.h>
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(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 quick program termination |
Return value
0
if the registration succeeds, nonzero value otherwise.
Example
#include <stdlib.h>
#include <stdio.h>
void f1(void)
{
puts("pushed first");
fflush(stdout);
}
void f2(void)
{
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) |
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