+ // VC++ free must take place in same DLL as allocation when using non dll
+ // run-time library (e.g. Multithreaded instead of Multithreaded DLL)
+#if defined(__VISUALC__) && defined(_MT) && !defined(_DLL)
+ void Unlock() { if ( !IsEmpty() && --nRefs == 0) Free(); }
+ // we must not inline deallocation since allocation is not inlined
+ void Free();
+#else