xbt_assert(ev->priority >= 0, "Negative logging priority naturally forbidden");
xbt_assert(static_cast<size_t>(ev->priority) < sizeof(xbt_log_priority_names)/sizeof(xbt_log_priority_names[0]),
xbt_assert(ev->priority >= 0, "Negative logging priority naturally forbidden");
xbt_assert(static_cast<size_t>(ev->priority) < sizeof(xbt_log_priority_names)/sizeof(xbt_log_priority_names[0]),