From 226abdf852ce946ef4f68d75b5ac264ab5be8780 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <doug.gregor@gmail.com>
Date: Wed, 30 Jan 2002 01:58:58 +0000
Subject: [PATCH] object_traits.hpp:   - Add is_stateless trait

[SVN r12558]
---
 include/boost/type_traits/object_traits.hpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/boost/type_traits/object_traits.hpp b/include/boost/type_traits/object_traits.hpp
index 41dd46f..501ebf3 100644
--- a/include/boost/type_traits/object_traits.hpp
+++ b/include/boost/type_traits/object_traits.hpp
@@ -380,6 +380,21 @@ template <typename T> struct is_empty
 
 #endif  // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 
+/**********************************************
+ *
+ * is_stateless
+ *
+ **********************************************/
+template <typename T>
+struct is_stateless
+{
+  BOOST_STATIC_CONSTANT(bool, value = 
+    (::boost::type_traits::ice_and<
+       ::boost::has_trivial_copy<T>::value,
+       ::boost::has_trivial_destructor<T>::value
+     >::value));
+};
+
 template <class Base, class Derived>
 struct is_base_and_derived
 {