change C-style casts to static_cast<>()
change C-style casts to static_cast<>()

chris920820/pocolm,keli78/pocolm,chris920820/pocolm,chris920820/pocolm,keli78/pocolm,keli78/pocolm,wantee/pocolm,wantee/pocolm,keli78/pocolm,wantee/pocolm,chris920820/pocolm,wantee/pocolm