From 1657c4bc495815febc2137972c3c63b99d2b0189 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Thu, 28 Mar 2013 23:51:50 +0100
Subject: Use a uint256 for bnChainWork

Every block index entry currently requires a separately-allocated
CBigNum. By replacing them with uint256, it's just 32 bytes extra
in CBlockIndex itself.

This should save us a few megabytes in RAM, and less allocation
overhead.
---
 src/bignum.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/bignum.h')

diff --git a/src/bignum.h b/src/bignum.h
index 1ee7a99934..0881807d70 100644
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -222,7 +222,7 @@ public:
         BN_mpi2bn(pch, p - pch, this);
     }
 
-    uint256 getuint256()
+    uint256 getuint256() const
     {
         unsigned int nSize = BN_bn2mpi(this, NULL);
         if (nSize < 4)
-- 
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