checkpoints.h
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checkpoints.h
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	// Copyright (c) 2009-2015 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_CHECKPOINTS_H
	#define BITCOIN_CHECKPOINTS_H

	#include "uint256.h"

	#include <map>

	class CBlockIndex;
	struct CCheckpointData;

	/**
	* Block-chain checkpoints are compiled-in sanity checks.
	* They are updated every release or three.
	*/
	namespace Checkpoints
	{

	//! Return conservative estimate of total number of blocks, 0 if unknown
	int GetTotalBlocksEstimate(const CCheckpointData& data);

	//! Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
	CBlockIndex* GetLastCheckpoint(const CCheckpointData& data);

	double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex* pindex, bool fSigchecks = true);

	} //namespace Checkpoints

	#endif // BITCOIN_CHECKPOINTS_H