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at_quick_exit

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Defined in header <stdlib.h>
int at_quick_exit( void (*func)() );

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.

Contents

[edit] Parameters

func - pointer to a function to be called on normal program termination

[edit] Return value

0 if the registration succeeds, nonzero value otherwise.

[edit] 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

[edit] See also

registers a function to be called on exit() invocation
(function) [edit]
C++ documentation for at_quick_exit