Unify null pointer checks
diff --git a/tinyxml2.h b/tinyxml2.h
index 82422a4..12b204f 100755
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -1912,19 +1912,19 @@
     }

     /// Safe cast to XMLElement. This can return null.

     XMLElement* ToElement() 					{

-        return ( ( _node == 0 ) ? 0 : _node->ToElement() );

+        return ( _node ? _node->ToElement() : 0 );

     }

     /// Safe cast to XMLText. This can return null.

     XMLText* ToText() 							{

-        return ( ( _node == 0 ) ? 0 : _node->ToText() );

+        return ( _node ? _node->ToText() : 0 );

     }

     /// Safe cast to XMLUnknown. This can return null.

     XMLUnknown* ToUnknown() 					{

-        return ( ( _node == 0 ) ? 0 : _node->ToUnknown() );

+        return ( _node ? _node->ToUnknown() : 0 );

     }

     /// Safe cast to XMLDeclaration. This can return null.

     XMLDeclaration* ToDeclaration() 			{

-        return ( ( _node == 0 ) ? 0 : _node->ToDeclaration() );

+        return ( _node ? _node->ToDeclaration() : 0 );

     }

 

 private:

@@ -1984,16 +1984,16 @@
         return _node;

     }

     const XMLElement* ToElement() const			{

-        return ( ( _node == 0 ) ? 0 : _node->ToElement() );

+        return ( _node ? _node->ToElement() : 0 );

     }

     const XMLText* ToText() const				{

-        return ( ( _node == 0 ) ? 0 : _node->ToText() );

+        return ( _node ? _node->ToText() : 0 );

     }

     const XMLUnknown* ToUnknown() const			{

-        return ( ( _node == 0 ) ? 0 : _node->ToUnknown() );

+        return ( _node ? _node->ToUnknown() : 0 );

     }

     const XMLDeclaration* ToDeclaration() const	{

-        return ( ( _node == 0 ) ? 0 : _node->ToDeclaration() );

+        return ( _node ? _node->ToDeclaration() : 0 );

     }

 

 private: