fix incorrect assert on unused memory
diff --git a/tinyxml2.cpp b/tinyxml2.cpp
index 538717a..fa91b5d 100755
--- a/tinyxml2.cpp
+++ b/tinyxml2.cpp
@@ -669,6 +669,7 @@
         addThis->_next = 0;

     }

     addThis->_parent = this;

+    addThis->_memPool->SetTracked();

     return addThis;

 }

 

@@ -693,6 +694,7 @@
         addThis->_next = 0;

     }

     addThis->_parent = this;

+    addThis->_memPool->SetTracked();

     return addThis;

 }

 

@@ -713,6 +715,7 @@
     afterThis->_next->_prev = addThis;

     afterThis->_next = addThis;

     addThis->_parent = this;

+    addThis->_memPool->SetTracked();

     return addThis;

 }

 

@@ -814,6 +817,7 @@
             if ( parentEnd ) {

                 *parentEnd = static_cast<XMLElement*>(node)->_value;

             }

+			node->_memPool->SetTracked();	// created and then immediately deleted.

             DELETE_NODE( node );

             return p;

         }

@@ -1314,6 +1318,7 @@
             _rootAttribute = attrib;

         }

         attrib->SetName( name );

+        attrib->_memPool->SetTracked(); // always created and linked.

     }

     return attrib;

 }

@@ -1355,6 +1360,7 @@
         if ( XMLUtil::IsAlpha( *p ) ) {

             XMLAttribute* attrib = new (_document->_attributePool.Alloc() ) XMLAttribute();

             attrib->_memPool = &_document->_attributePool;

+			attrib->_memPool->SetTracked();

 

             p = attrib->ParseDeep( p, _document->ProcessEntities() );

             if ( !p || Attribute( attrib->Name() ) ) {

@@ -1508,10 +1514,14 @@
     attributePool.Trace( "attribute" );

 #endif

 

-    TIXMLASSERT( _textPool.CurrentAllocs() == 0 );

-    TIXMLASSERT( _elementPool.CurrentAllocs() == 0 );

-    TIXMLASSERT( _commentPool.CurrentAllocs() == 0 );

-    TIXMLASSERT( _attributePool.CurrentAllocs() == 0 );

+#ifdef DEBUG

+	if ( Error() == false ) {

+		TIXMLASSERT( _elementPool.CurrentAllocs()   == _elementPool.Untracked() );

+		TIXMLASSERT( _attributePool.CurrentAllocs() == _attributePool.Untracked() );

+		TIXMLASSERT( _textPool.CurrentAllocs()      == _textPool.Untracked() );

+		TIXMLASSERT( _commentPool.CurrentAllocs()   == _commentPool.Untracked() );

+	}

+#endif

 }