src/checkpoints.cpp

   1 // Copyright (c) 2009-2016 The Bitcoin Core developers
   2 // Distributed under the MIT software license, see the accompanying
   3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #include "checkpoints.h"
   6
   7 #include "chain.h"
   8 #include "chainparams.h"
   9 #include "reverse_iterator.h"
  10 #include "validation.h"
  11 #include "uint256.h"
  12
  13 #include <stdint.h>
  14
  15
  16 namespace Checkpoints {
  17
  18     CBlockIndex* GetLastCheckpoint(const CCheckpointData& data)
  19     {
  20         const MapCheckpoints& checkpoints = data.mapCheckpoints;
  21
  22         for (const MapCheckpoints::value_type& i : reverse_iterate(checkpoints))
  23         {
  24             const uint256& hash = i.second;
  25             BlockMap::const_iterator t = mapBlockIndex.find(hash);
  26             if (t != mapBlockIndex.end())
  27                 return t->second;
  28         }
  29         return nullptr;
  30     }
  31
  32 } // namespace Checkpoints