this makes more sense

uttt.c

@@ -927,8 +927,8 @@ void ut_statetokey(struct ut_statevalue *sv, const struct ut_state *state)
 	memset(sv->tilesxo, 0, sizeof(sv->tilesxo));
 	char *tiles = (char *)state->tiles;
 	for(int i = 0; i < sizeof(state->tiles); i++)
-		sv->tilesxo[i / 4] |= ((tiles[i] == 'X') * (1 << ((i % 4) * 2))) |
-			              ((tiles[i] == 'O') * (1 << ((i % 4) * 2 + 1)));
+		sv->tilesxo[i / 4] |= ((tiles[i] == 'X') ? (1 << ((i % 4) * 2)) : 0) |
+			              ((tiles[i] == 'O') ? (1 << ((i % 4) * 2 + 1)) : 0);
 }
 unsigned long ut_keytoidx(struct ut_statevalue *sv)
 {