at_quick_exit

 

C

Language

headers

Type support

Dynamic memory management

Error handling

Program utilities

Variadic function support

Date and time utilities

Strings library

Algorithms

Numerics

Input/output support

Localization support

Thread support (C11)

Atomic operations (C11)

Technical Specifications

 

Program support utilities

Program termination
abort exit quick_exit (C11) _Exit (C99)	atexit at_quick_exit (C11) EXIT_SUCCESSEXIT_FAILURE
Communicating with the environment
system	getenvgetenv_s (C11)
Signals
signal raise sig_atomic_t	SIG_DFLSIG_IGN SIG_ERR
Signal types
SIGABRTSIGFPESIGILLSIGINTSIGSEGVSIGTERM
Non-local jumps
setjmp
longjmp
Types
jmp_buf

 

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