X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fstructure%2FSGSharedPtr.hxx;h=c815a2fa566f94253282109ec6d5a76ce4489dad;hb=c955e61ba785a7b4699ed0a35f947fb661cab854;hp=b99a6a8f7f95bd64f993de5be65be825e0e1ba50;hpb=0f7b65a9216458b290113bae0ff75bd3ec4dce36;p=simgear.git

diff --git a/simgear/structure/SGSharedPtr.hxx b/simgear/structure/SGSharedPtr.hxx
index b99a6a8f..c815a2fa 100644
--- a/simgear/structure/SGSharedPtr.hxx
+++ b/simgear/structure/SGSharedPtr.hxx
@@ -88,7 +88,7 @@ public:
   { return T::count(_ptr); }
 
   bool valid(void) const
-  { return _ptr; }
+  { return _ptr != (T*)0; }
 
   void clear()
   { put(); }
@@ -98,6 +98,8 @@ public:
 private:
   void assign(T* p)
   { get(p); put(); _ptr = p; }
+  void assignNonRef(T* p)
+  { put(); _ptr = p; }
 
   void get(const T* p) const
   { T::get(p); }
@@ -111,4 +113,12 @@ private:
   friend class SGWeakPtr;
 };
 
+/**
+ * Support for boost::mem_fn
+ */
+template<typename T>
+T* get_pointer(SGSharedPtr<T> const & p)
+{
+  return p.ptr();
+}
 #endif