From 111c966c1eb256a97998069d99c7ac9ff94283ac Mon Sep 17 00:00:00 2001
From: poma <Semenov.Roman@mail.ru>
Date: Fri, 1 Nov 2019 04:15:55 +0300
Subject: [PATCH] add assert on denomination

---
 contracts/Mixer.sol | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contracts/Mixer.sol b/contracts/Mixer.sol
index b16383c..d21e85d 100644
--- a/contracts/Mixer.sol
+++ b/contracts/Mixer.sol
@@ -53,6 +53,7 @@ contract Mixer is MerkleTreeWithHistory {
     uint256 _emptyElement,
     address _operator
   ) MerkleTreeWithHistory(_merkleTreeHeight, _emptyElement) public {
+    require(_denomination > 0, "denomination should be greater than 0");
     verifier = _verifier;
     operator = _operator;
     denomination = _denomination;