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Diffstat (limited to 'src/consensus/amount.h')
| -rw-r--r-- | src/consensus/amount.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/consensus/amount.h b/src/consensus/amount.h new file mode 100644 index 0000000000..8b41a2277d --- /dev/null +++ b/src/consensus/amount.h @@ -0,0 +1,28 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2018 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_CONSENSUS_AMOUNT_H +#define BITCOIN_CONSENSUS_AMOUNT_H + +#include <cstdint> + +/** Amount in satoshis (Can be negative) */ +typedef int64_t CAmount; + +static constexpr CAmount COIN = 100000000; + +/** 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 constexpr CAmount MAX_MONEY = 21000000 * COIN; +inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); } + +#endif // BITCOIN_CONSENSUS_AMOUNT_H |