std::new_handler (3) Linux Manual Page

std::new_handler – std::new_handler

Synopsis

Defined in header<new>

    typedef void (*new_handler)();

std::new_handler is the function pointer type (pointer to function that takes no arguments and returns void), which is used by the functions std::set_new_handler and std::get_new_handler

See also

                allocation functions
operator_new (function)
operator_new[]
                registers a new handler
set_new_handler (function)
get_new_handler obtains the current new handler
                (function)
(C++11)