Browse Source
Improve comment explaining purpose of MAX_MONEY constant
pull/4/head
Peter Todd
9 years ago
committed by
Jack Grigg
No known key found for this signature in database
GPG Key ID: 6A6914DAFBEA00DA
1 changed files with
9 additions and
1 deletions
-
src/amount.h
|
|
|
@ -16,7 +16,15 @@ typedef int64_t CAmount; |
|
|
|
static const CAmount COIN = 100000000; |
|
|
|
static const CAmount CENT = 1000000; |
|
|
|
|
|
|
|
/** No amount larger than this (in satoshi) is valid */ |
|
|
|
/** 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; |
|
|
|
inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); } |
|
|
|
|
|
|
|
|
