From 1fdc7c41bb1eea3a25c3387f147ff8839a78d4ad Mon Sep 17 00:00:00 2001
From: Roman Zeyde <me@romanzey.de>
Date: Thu, 22 Mar 2018 13:55:22 +0200
Subject: [PATCH] Make CTxMemPool::isSpent() const

---
 src/txmempool.cpp | 2 +-
 src/txmempool.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index d1edde284..cc639288d 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -339,7 +339,7 @@ CTxMemPool::CTxMemPool(CBlockPolicyEstimator* estimator) :
     nCheckFrequency = 0;
 }
 
-bool CTxMemPool::isSpent(const COutPoint& outpoint)
+bool CTxMemPool::isSpent(const COutPoint& outpoint) const
 {
     LOCK(cs);
     return mapNextTx.count(outpoint);
diff --git a/src/txmempool.h b/src/txmempool.h
index 08a342101..699f6b554 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -550,7 +550,7 @@ public:
     void _clear(); //lock free
     bool CompareDepthAndScore(const uint256& hasha, const uint256& hashb);
     void queryHashes(std::vector<uint256>& vtxid);
-    bool isSpent(const COutPoint& outpoint);
+    bool isSpent(const COutPoint& outpoint) const;
     unsigned int GetTransactionsUpdated() const;
     void AddTransactionsUpdated(unsigned int n);
     /**