diff options
Diffstat (limited to 'src/chain.cpp')
| -rw-r--r-- | src/chain.cpp | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/chain.cpp b/src/chain.cpp index 47acde882e..79e8bdfa44 100644 --- a/src/chain.cpp +++ b/src/chain.cpp @@ -1,9 +1,9 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2016 The Bitcoin Core developers +// Copyright (c) 2009-2017 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#include "chain.h" +#include <chain.h> /** * CChain implementation @@ -80,12 +80,13 @@ int static inline GetSkipHeight(int height) { return (height & 1) ? InvertLowestOne(InvertLowestOne(height - 1)) + 1 : InvertLowestOne(height); } -CBlockIndex* CBlockIndex::GetAncestor(int height) +const CBlockIndex* CBlockIndex::GetAncestor(int height) const { - if (height > nHeight || height < 0) + if (height > nHeight || height < 0) { return nullptr; + } - CBlockIndex* pindexWalk = this; + const CBlockIndex* pindexWalk = this; int heightWalk = nHeight; while (heightWalk > height) { int heightSkip = GetSkipHeight(heightWalk); @@ -106,9 +107,9 @@ CBlockIndex* CBlockIndex::GetAncestor(int height) return pindexWalk; } -const CBlockIndex* CBlockIndex::GetAncestor(int height) const +CBlockIndex* CBlockIndex::GetAncestor(int height) { - return const_cast<CBlockIndex*>(this)->GetAncestor(height); + return const_cast<CBlockIndex*>(static_cast<const CBlockIndex*>(this)->GetAncestor(height)); } void CBlockIndex::BuildSkip() @@ -128,7 +129,7 @@ arith_uint256 GetBlockProof(const CBlockIndex& block) // We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256 // as it's too large for an arith_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. + // or ~bnTarget / (bnTarget+1) + 1. return (~bnTarget / (bnTarget + 1)) + 1; } |