By default, the location and function where the assert has been called from are
displayed when the assertion fires. This behavior can be modified by using
hpx::assertion::set_assertion_handler. When HPX initializes, it uses
this function to specify a more elaborate assertion handler. If your application
needs to customize this, it needs to do so before calling
hpx::init, hpx_main or using the C-main
See the API reference of the module for more details.