Move CBlockIndex::GetBlockWork() to pow::GetProofIncrement(nBits)

1 files changed, 2 insertions, 11 deletions

diff --git a/src/main.h b/src/main.h
index adb7d68bcf..a15a0e16d0 100644
--- a/src/main.h
+++ b/src/main.h
@@ -14,6 +14,7 @@
 #include "coins.h"
 #include "core.h"
 #include "net.h"
+#include "pow.h"
 #include "script.h"
 #include "sync.h"
 #include "txmempool.h"
@@ -792,17 +793,7 @@ public:
 
     uint256 GetBlockWork() const
     {
-        uint256 bnTarget;
-        bool fNegative;
-        bool fOverflow;
-        bnTarget.SetCompact(nBits, &fNegative, &fOverflow);
-        if (fNegative || fOverflow || bnTarget == 0)
-            return 0;
-        // We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256
-        // as it's too large for a uint256. However, as 2**256 is at least as large
-        // as bnTarget+1, it is equal to ((2**256 - bnTarget - 1) / (bnTarget+1)) + 1,
-        // or ~bnTarget / (nTarget+1) + 1.
-        return (~bnTarget / (bnTarget + 1)) + 1;
+        return GetProofIncrement(nBits);
     }
 
     enum { nMedianTimeSpan=11 };