std::at_quick_exit

 

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Defined in header <cstdlib>
int at_quick_exit( /*atexit-handler*/* func ); int at_quick_exit( /*c-atexit-handler*/* func );	(1)	(since C++11)
extern "C++" using /*atexit-handler*/ = void(); // exposition-only extern "C" using /*c-atexit-handler*/ = void(); // exposition-only	(2)

Registers the function pointed to by func to be called on quick program termination (via std::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.

The registered functions will not be called on normal program termination. If a function need to be called in that case, std::atexit must be used.

Parameters

func

-

pointer to a function to be called on quick program termination

Return value

​0​ if the registration succeeds, nonzero value otherwise.

Exceptions

noexcept specification:  

noexcept

  

Notes

The two overloads are distinct because the types of the parameter func are distinct (language linkage is part of its type)

See also

atexit	registers a function to be called on std::exit() invocation (function)
C documentation for at_quick_exit