free the allocated import

code/Assimp.cpp

@@ -96,6 +96,8 @@ namespace Assimp
     /** will return all registered importers. */
     void GetImporterInstanceList(std::vector< BaseImporter* >& out);
 
+    /** will delete all registered importers. */
+    void DeleteImporterInstanceList(std::vector< BaseImporter* >& out);
 } // namespace assimp
 
 
@@ -648,6 +650,8 @@ ASSIMP_API C_STRUCT const aiImporterDesc* aiGetImporterDesc( const char *extensi
         }
     }
 
+    DeleteImporterInstanceList(out);
+
     return desc;
 }
 

code/Importer.cpp

@@ -90,6 +90,8 @@ using namespace Assimp::Formatter;
 namespace Assimp {
     // ImporterRegistry.cpp
     void GetImporterInstanceList(std::vector< BaseImporter* >& out);
+	void DeleteImporterInstanceList(std::vector< BaseImporter* >& out);
+
     // PostStepRegistry.cpp
     void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out);
 }
@@ -173,8 +175,7 @@ Importer::Importer()
 Importer::~Importer()
 {
     // Delete all import plugins
-    for( unsigned int a = 0; a < pimpl->mImporter.size(); a++)
+	DeleteImporterInstanceList(pimpl->mImporter);
-        delete pimpl->mImporter[a];
 
     // Delete all post-processing plug-ins
     for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++)
@@ -1113,4 +1114,3 @@ void Importer::GetMemoryRequirements(aiMemoryInfo& in) const
     }
     in.total += in.materials;
 }
-

code/ImporterRegistry.cpp

@@ -321,4 +321,12 @@ void GetImporterInstanceList(std::vector< BaseImporter* >& out)
 #endif
 }
 
+/** will delete all registered importers. */
+void DeleteImporterInstanceList(std::vector< BaseImporter* >& deleteList){
+	for(size_t i= 0; i<deleteList.size();++i){
+		delete deleteList[i];
+		deleteList[i]=NULL;
+	}//for
+}
+
 } // namespace Assimp