Merge pull request #3202 from assimp/issue_3190

closes https://github.com/assimp/assimp/issues/3190 : fix leak.

code/AssetLib/X3D/X3DImporter_Postprocess.cpp

@@ -787,8 +787,10 @@ void X3DImporter::Postprocess_CollectMetadata(const CX3DImporter_NodeElement& pN
 			// Add an element according to its type.
 			if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaBoolean)
 			{
-				if(((CX3DImporter_NodeElement_MetaBoolean*)cur_meta)->Value.size() > 0)
-					pSceneNode.mMetaData->Set(static_cast<unsigned int>(meta_idx), cur_meta->Name, *(((CX3DImporter_NodeElement_MetaBoolean*)cur_meta)->Value.begin()));
+				if(((CX3DImporter_NodeElement_MetaBoolean*)cur_meta)->Value.size() > 0) {
+					const bool v = (bool) *( ( (CX3DImporter_NodeElement_MetaBoolean*) cur_meta )->Value.begin());
+                    pSceneNode.mMetaData->Set(static_cast<unsigned int>(meta_idx), cur_meta->Name, v);
+                }
 			}
 			else if((*it)->Type == CX3DImporter_NodeElement::ENET_MetaDouble)
 			{

include/assimp/metadata.h

@@ -86,6 +86,14 @@ typedef enum aiMetadataType {
 struct aiMetadataEntry {
     aiMetadataType mType;
     void *mData;
+
+#ifdef __cplusplus
+    aiMetadataEntry() :
+            mType(AI_META_MAX),
+            mData( nullptr ) {
+        // empty
+    }
+#endif
 };
 
 #ifdef __cplusplus
@@ -313,8 +321,13 @@ struct aiMetadata {
 
         // Set metadata type
         mValues[index].mType = GetAiType(value);
+
         // Copy the given value to the dynamic storage
-        mValues[index].mData = new T(value);
+        if (nullptr != mValues[index].mData) {
+            ::memcpy(mValues[index].mData, &value, sizeof(T));
+        } else {
+            mValues[index].mData = new T(value);
+        }
 
         return true;
     }