From b47f6867540f65ebbe655085a50361cdc35cb429 Mon Sep 17 00:00:00 2001
From: Jack Grigg <jack@z.cash>
Date: Thu, 20 Aug 2020 13:14:44 +0100
Subject: [PATCH] consensus: Add assertions for Params::HalvingHeight
 parameters

- Height must be non-negative.
- Halving index must be positive.
---
 src/consensus/params.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/consensus/params.cpp b/src/consensus/params.cpp
index 48ff3909a..a6525f4b7 100644
--- a/src/consensus/params.cpp
+++ b/src/consensus/params.cpp
@@ -47,6 +47,9 @@ namespace Consensus {
      * first halving.
      */
     int Params::HalvingHeight(int nHeight, int halvingIndex) const {
+        assert(nHeight >= 0);
+        assert(halvingIndex > 0);
+
         // zip208
         // HalvingHeight(i) := max({ height ⦂ N | Halving(height) < i }) + 1
         //