From 81ded0b9077164820faf9c84f9b07d968d1849fa Mon Sep 17 00:00:00 2001
From: bolero-MURAKAMI <bolero.murakami@gmail.com>
Date: Tue, 3 Dec 2013 01:07:56 +0900
Subject: [PATCH] fix forward_clist iterator

---
 sprout/forward_clist.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sprout/forward_clist.hpp b/sprout/forward_clist.hpp
index 4722fa48..edf79f43 100644
--- a/sprout/forward_clist.hpp
+++ b/sprout/forward_clist.hpp
@@ -116,6 +116,9 @@ namespace sprout {
 				++*this;
 				return result;
 			}
+			SPROUT_CONSTEXPR bool is_initialized() const SPROUT_NOEXCEPT {
+				return item->is_initialized();
+			}
 		};
 
 		template<typename List1, typename List2>
@@ -124,7 +127,7 @@ namespace sprout {
 			bool
 		>::type
 		operator==(sprout::detail::forward_item_iterator<List1> const& lhs, sprout::detail::forward_item_iterator<List2> const& rhs) {
-			return &*lhs == &*rhs;
+			return !(lhs.is_initialized() || rhs.is_initialized()) || &*lhs == &*rhs;
 		}
 		template<typename List1, typename List2>
 		inline SPROUT_CONSTEXPR typename std::enable_if<