From 9d0d078ff297138622cd2f3f1076f5984395e42b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 19 Mar 2016 11:34:10 +0200
Subject: Add support for pair representation reversibility

---
 build2/variable.ixx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'build2/variable.ixx')

diff --git a/build2/variable.ixx b/build2/variable.ixx
index b368c6e..df3f0c5 100644
--- a/build2/variable.ixx
+++ b/build2/variable.ixx
@@ -34,7 +34,14 @@ namespace build2
   inline bool
   assign (name& n)
   {
-    return value_traits<T>::assign (n);
+    return value_traits<T>::assign (n, nullptr);
+  }
+
+  template <typename T>
+  inline bool
+  assign (name& l, name& r)
+  {
+    return value_traits<T>::assign (l, &r);
   }
 
   template <typename T>
-- 
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