ev_default_loop
# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW;
EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW; /* returns true when successful */
return ev_default_loop(EVFLAG_AUTO);
return ev_default_loop(EVFLAG_AUTO);