Merge branch 'dev' into assetchain-conf

[VerusCoin.git] / src / amount.h

diff --git a/src/amount.h b/src/amount.h
index c0d37954cb04bbd5b428845a3a56b8aee8301118..9b62f76639e840334a9d4f4b4f14c10b50a7af74 100644 (file)
--- a/src/amount.h
+++ b/src/amount.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -16,8 +16,20 @@ typedef int64_t CAmount;
 static const CAmount COIN = 100000000;
 static const CAmount CENT = 1000000;
 
-/** No amount larger than this (in satoshi) is valid */
-static const CAmount MAX_MONEY = 21000000 * COIN;
+extern const std::string CURRENCY_UNIT;
+
+/** No amount larger than this (in satoshi) is valid.
+ *
+ * Note that this constant is *not* the total money supply, which in Bitcoin
+ * currently happens to be less than 21,000,000 BTC for various reasons, but
+ * rather a sanity check. As this sanity check is used by consensus-critical
+ * validation code, the exact value of the MAX_MONEY constant is consensus
+ * critical; in unusual circumstances like a(nother) overflow bug that allowed
+ * for the creation of coins out of thin air modification could lead to a fork.
+ * */
+//static const CAmount MAX_MONEY = 21000000 * COIN;
+extern int64_t MAX_MONEY;
+
 inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
 
 /** Type-safe wrapper class to for fee rates