diff --git a/cocos/gui/UIListView.cpp b/cocos/gui/UIListView.cpp
index 8e45662c3e..dbc2a1f840 100644
--- a/cocos/gui/UIListView.cpp
+++ b/cocos/gui/UIListView.cpp
@@ -301,7 +301,8 @@ void UIListView::removeLastItem()
 
 UIWidget* UIListView::getItem(unsigned int index)
 {
-    if ((int)index < 0 || index >= _items->count())
+    // @todo Signed/unsigned mishmash. Index is must be unsigned int always. Yes?
+    if ( ((int)index < 0) || ((int)index >= _items->count()) )
     {
         return nullptr;
     }
diff --git a/cocos/network/SocketIO.cpp b/cocos/network/SocketIO.cpp
index bb9acff3e1..d4d66ac137 100644
--- a/cocos/network/SocketIO.cpp
+++ b/cocos/network/SocketIO.cpp
@@ -367,7 +367,7 @@ void SIOClientImpl::onOpen(WebSocket* ws)
 		c->onOpen();
 	}
 
-	Director::getInstance()->getScheduler()->scheduleSelector(schedule_selector(SIOClientImpl::heartbeat), this, (_heartbeat * .9), false);
+	Director::getInstance()->getScheduler()->scheduleSelector(schedule_selector(SIOClientImpl::heartbeat), this, (_heartbeat * .9f), false);
 	
 	log("SIOClientImpl::onOpen socket connected!");
 }
diff --git a/samples/Cpp/TestCpp/Classes/PerformanceTest/PerformanceSpriteTest.cpp b/samples/Cpp/TestCpp/Classes/PerformanceTest/PerformanceSpriteTest.cpp
index ccf4ca602d..fd7fd7e042 100644
--- a/samples/Cpp/TestCpp/Classes/PerformanceTest/PerformanceSpriteTest.cpp
+++ b/samples/Cpp/TestCpp/Classes/PerformanceTest/PerformanceSpriteTest.cpp
@@ -519,7 +519,7 @@ void SpriteMainScene::onEnter()
         auto director = Director::getInstance();
         auto sched = director->getScheduler();
         
-        sched->scheduleSelector(SEL_SCHEDULE(&SpriteMainScene::updateAutoTest), this, 0.2, false);
+        sched->scheduleSelector(SEL_SCHEDULE(&SpriteMainScene::updateAutoTest), this, 0.2f, false);
         
     }
 }