From fad287007b90b9259041b94c2f23bd3afee6b812 Mon Sep 17 00:00:00 2001
From: Manuel Araoz <manuelaraoz@gmail.com>
Date: Mon, 20 Mar 2017 18:18:32 -0300
Subject: [PATCH] 7.2 add preconditions to Shareable contructor

---
 contracts/ownership/Shareable.sol | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contracts/ownership/Shareable.sol b/contracts/ownership/Shareable.sol
index 0cbf7d37d..8b8477d41 100644
--- a/contracts/ownership/Shareable.sol
+++ b/contracts/ownership/Shareable.sol
@@ -64,6 +64,9 @@ contract Shareable {
       ownerIndex[_owners[i]] = 2 + i;
     }
     required = _required;
+    if (required > owners.length) {
+      throw;
+    }
   }
 
   // Revokes a prior confirmation of the given operation