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/uint256.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/uint256.h')

diff --git a/src/uint256.h b/src/uint256.h
index eb0066fa27..8a9af8ba04 100644
--- a/src/uint256.h
+++ b/src/uint256.h
@@ -55,6 +55,16 @@ public:
         return ret;
     }
 
+    double getdouble() const
+    {
+        double ret = 0.0;
+        double fact = 1.0;
+        for (int i = 0; i < WIDTH; i++) {
+            ret += fact * pn[i];
+            fact *= 4294967296.0;
+        }
+        return ret;
+    }
 
     base_uint& operator=(uint64 b)
     {
-- 
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