Small buffer optimization for Boost.Function

[SVN r32282]

test/allocator_test.cpp

@@ -45,7 +45,7 @@ struct plus_int
 {
   int operator()(int x, int y) const { return x + y; }
 
-  int unused_state_data;
+  int unused_state_data[32];
 };
 
 static int do_minus(int x, int y) { return x-y; }
@@ -54,7 +54,7 @@ struct DoNothing
 {
   void operator()() const {}
 
-  int unused_state_data;
+  int unused_state_data[32];
 };
 
 static void do_nothing() {}

test/stateless_test.cpp

@@ -14,23 +14,21 @@
 struct stateless_integer_add {
   int operator()(int x, int y) const { return x+y; }
 
-  void* operator new(std::size_t, stateless_integer_add*)
+  void* operator new(std::size_t)
   {
     throw std::runtime_error("Cannot allocate a stateless_integer_add");
   }
 
-  void operator delete(void*, stateless_integer_add*) throw()
+  void* operator new(std::size_t, void* p)
+  {
+    return p;
+  }
+
+  void operator delete(void*) throw()
   {
   }
 };
 
-namespace boost {
-  template<>
-  struct is_stateless<stateless_integer_add> {
-    BOOST_STATIC_CONSTANT(bool, value = true);
-  };
-}
-
 int test_main(int, char*[])
 {
   boost::function2<int, int, int> f;