Ticket #1910: function_assignment.patch

function_template.hpp

@@ -786 +786 @@
       else vtable = 0;
     }
 
+protected:
     // Moves the value from the specified argument to *this. If the argument 
     // has its function object allocated on the heap, move_assign will pass 
     // its buffer to *this, and set the argument's buffer pointer to NULL. 
@@ -913 +914 @@
 
   function(const base_type& f) : base_type(static_cast<const base_type&>(f)){}
 
-  self_type& operator=(const self_type& f)
+  self_type& operator=(self_type f)
   {
-    self_type(f).swap(*this);
+    this->move_assign(f);
     return *this;
   }
 
@@ -930 +931 @@
 #endif
   operator=(Functor f)
   {
-    self_type(f).swap(*this);
+    self_type temp(f);
+    this->move_assign(temp);
     return *this;
   }
 
@@ -944 +946 @@
 
   self_type& operator=(const base_type& f)
   {
-    self_type(f).swap(*this);
+    self_type temp(f);
+    this->move_assign(temp);
     return *this;
   }
 };