17 Language support library [language.support]

17.9 Exception handling [support.exception]

17.9.4 Abnormal termination [exception.terminate]

17.9.4.2 set_­terminate [set.terminate]

terminate_handler set_terminate(terminate_handler f) noexcept;
Effects: Establishes the function designated by f as the current handler function for terminating exception processing.
Remarks: It is unspecified whether a null pointer value designates the default terminate_­handler.
Returns: The previous terminate_­handler.