From a0cd0c27cc630dbd38d9637d7ca1cd80e175d72e Mon Sep 17 00:00:00 2001
From: Richard Roberts <richard.jw.roberts@gmail.com>
Date: Tue, 3 Sep 2013 13:54:38 +0000
Subject: [PATCH] Added missing header

---
 gtsam/base/types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/base/types.h b/gtsam/base/types.h
index d4d39af4b..59b8238d2 100644
--- a/gtsam/base/types.h
+++ b/gtsam/base/types.h
@@ -23,8 +23,8 @@
 #include <gtsam/config.h>
 
 #include <cstddef>
-
 #include <string>
+#include <iostream>
 #include <boost/function/function1.hpp>
 #include <boost/range/concepts.hpp>
 #include <boost/optional.hpp>