Initial commit.

src/checkpoints.h

@@ -0,0 +1,29 @@
+// Copyright (c) 2009-2012 The Bitcoin developers
+// Copyright (c) 2011-2012 Litecoin Developers
+// Copyright (c) 2013 CasinoCoin Developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#ifndef BITCOIN_CHECKPOINT_H
+#define  BITCOIN_CHECKPOINT_H
+
+#include <map>
+
+class uint256;
+class CBlockIndex;
+
+/** Block-chain checkpoints are compiled-in sanity checks.
+ * They are updated every release or three.
+ */
+namespace Checkpoints
+{
+    // Returns true if block passes checkpoint checks
+    bool CheckBlock(int nHeight, const uint256& hash);
+
+    // Return conservative estimate of total number of blocks, 0 if unknown
+    int GetTotalBlocksEstimate();
+
+    // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
+    CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
+}
+
+#endif