* In case of a 'for' loop, don't declare the iterator of a type that has a larger value range when the iterator can take a maximum value of a more efficient data type. (int to uint8 in most cases).

* Other minor cleanups, Null pointer checks etc.

--HG--
branch : trunk

src/game/ObjectMgr.h

@@ -170,7 +170,7 @@ typedef std::pair<ItemRequiredTargetMap::const_iterator, ItemRequiredTargetMap::
 
 struct PetLevelInfo
 {
-    PetLevelInfo() : health(0), mana(0) { for(int i=0; i < MAX_STATS; ++i ) stats[i] = 0; }
+    PetLevelInfo() : health(0), mana(0) { for(uint8 i=0; i < MAX_STATS; ++i ) stats[i] = 0; }
 
     uint16 stats[MAX_STATS];
     uint16 health;