std::atexit

From Cppreference

C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Utilities library
Program support utilities
Program termination abort exit quick_exit (C++11) _Exit (C++11) atexit at_quick_exit (C++11) Execution outcome indicators EXIT_SUCCESS EXIT_FAILURE Communicating with the environment system getenv Signals signal raise Signal handling strategies SIG_DFL SIG_IGN SIG_ERR Signal types SIGABRT SIGFPE SIGILL SIGINT SIGSEGV SIGTERM Non-local jumps setjmp longjmp Types jmp_buf

Defined in header <cstdlib>
int atexit( void (*func)() );

Registers the function pointed to by func to be called on normal program termination (via exit() or returning from main()).

Calling the function from several threads does not induce a data race. The implementation shall support the registration of at least 32 functions.

Contents 1 Parameters 2 Return value 3 Example 4 See also

[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

This section is incomplete

[edit] See also

at_quick_exit (C++11)	registers a function to be called on quick_exit invocation (function)