From 1e4f87f5a13e34a457b537e9d13a212e6c5b754f Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Thu, 4 Sep 2014 02:03:39 +0200
Subject: Use memcmp for uint256 equality/inequality

---
 src/uint256.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src/uint256.h')

diff --git a/src/uint256.h b/src/uint256.h
index d1a822af0d..6bb9a59400 100644
--- a/src/uint256.h
+++ b/src/uint256.h
@@ -10,6 +10,7 @@
 #include <stdexcept>
 #include <stdint.h>
 #include <string>
+#include <cstring>
 #include <vector>
 
 class uint_error : public std::runtime_error {
@@ -215,8 +216,8 @@ public:
     friend inline const base_uint operator>>(const base_uint& a, int shift) { return base_uint(a) >>= shift; }
     friend inline const base_uint operator<<(const base_uint& a, int shift) { return base_uint(a) <<= shift; }
     friend inline const base_uint operator*(const base_uint& a, uint32_t b) { return base_uint(a) *= b; }
-    friend inline bool operator==(const base_uint& a, const base_uint& b) { return a.CompareTo(b) == 0; }
-    friend inline bool operator!=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) != 0; }
+    friend inline bool operator==(const base_uint& a, const base_uint& b) { return memcmp(a.pn, b.pn, sizeof(a.pn)) == 0; }
+    friend inline bool operator!=(const base_uint& a, const base_uint& b) { return memcmp(a.pn, b.pn, sizeof(a.pn)) != 0; }
     friend inline bool operator>(const base_uint& a, const base_uint& b) { return a.CompareTo(b) > 0; }
     friend inline bool operator<(const base_uint& a, const base_uint& b) { return a.CompareTo(b) < 0; }
     friend inline bool operator>=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) >= 0; }
-- 
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