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// Copyright (c) 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.
#ifndef BITCOIN_RPC_BLOCKCHAIN_H
#define BITCOIN_RPC_BLOCKCHAIN_H
class CBlockIndex;
/**
* Get the difficulty of the net wrt to the given block index, or the chain tip if
* not provided.
*
* @return A floating point number that is a multiple of the main net minimum
* difficulty (4295032833 hashes).
*/
double GetDifficulty(const CBlockIndex* blockindex = nullptr);
/** Callback for when block tip changed. */
void RPCNotifyBlockChange(bool ibd, const CBlockIndex *);
#endif
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