From 0ef97b1b103231db54e04a64bbdb5dcc3f34f482 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter@wuille.net>
Date: Thu, 18 Jun 2020 16:44:32 -0700
Subject: Make MurmurHash3 consume Spans

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

diff --git a/src/hash.cpp b/src/hash.cpp
index 26150e5ca8..4c09f5f646 100644
--- a/src/hash.cpp
+++ b/src/hash.cpp
@@ -12,7 +12,7 @@ inline uint32_t ROTL32(uint32_t x, int8_t r)
     return (x << r) | (x >> (32 - r));
 }
 
-unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char>& vDataToHash)
+unsigned int MurmurHash3(unsigned int nHashSeed, Span<const unsigned char> vDataToHash)
 {
     // The following is MurmurHash3 (x86_32), see http://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp
     uint32_t h1 = nHashSeed;
diff --git a/src/hash.h b/src/hash.h
index 3289bdee2f..e93146f92c 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -200,7 +200,7 @@ uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=PROTOCOL
     return ss.GetHash();
 }
 
-unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char>& vDataToHash);
+unsigned int MurmurHash3(unsigned int nHashSeed, Span<const unsigned char> vDataToHash);
 
 void BIP32Hash(const ChainCode &chainCode, unsigned int nChild, unsigned char header, const unsigned char data[32], unsigned char output[64]);
 
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