void workItem0() { printf("Running workItem0...\n"); } void mt301_TTaskGroupSimple() { ROOT::EnableImplicitMT(4); // Create the task group and give work to it ROOT::Experimental::TTaskGroup tg; tg.Run(workItem0); tg.Run([]() { printf("Running workItem1...\n"); }); printf("Running something in the \"main\" thread\n"); // Wait until all items are complete tg.Wait(); printf("All work completed.\n"); }