Avoid stack overflow in make_shared. Refs #4256.

[SVN r83198]

include/boost/smart_ptr/detail/shared_count.hpp

@@ -200,7 +200,7 @@ public:
         }
         catch( ... )
         {
-            D()( p ); // delete p
+            D::operator_fn( p ); // delete p
             throw;
         }
 
@@ -210,7 +210,7 @@ public:
 
         if( pi_ == 0 )
         {
-            D()( p ); // delete p
+            D::operator_fn( p ); // delete p
             boost::throw_exception( std::bad_alloc() );
         }
 
@@ -286,7 +286,7 @@ public:
         }
         catch(...)
         {
-            D()( p );
+            D::operator_fn( p );
 
             if( pi_ != 0 )
             {
@@ -306,7 +306,7 @@ public:
         }
         else
         {
-            D()( p );
+            D::operator_fn( p );
             boost::throw_exception( std::bad_alloc() );
         }
 

include/boost/smart_ptr/make_shared_object.hpp

@@ -87,6 +87,10 @@ public:
         destroy();
     }
 
+    static void operator_fn( T* ) // operator() can't be static
+    {
+    }
+
     void * address() BOOST_NOEXCEPT
     {
         return storage_.data_;