consensus/ethash: fix the algorithm of fakeBlockNumber in comments (#17166)

correct the algorithm in the comments for fakeBlockNumber, from "min" to "max".
This commit is contained in:
Kwuaint 2018-07-12 18:32:23 +08:00 committed by Péter Szilágyi
parent e8824f6e74
commit facf1bc9d6

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@ -356,8 +356,8 @@ func calcDifficultyByzantium(time uint64, parent *types.Header) *big.Int {
x.Set(params.MinimumDifficulty)
}
// calculate a fake block number for the ice-age delay:
// https://github.com/ethereum/EIPs/pull/669
// fake_block_number = min(0, block.number - 3_000_000
// https://github.com/ethereum/EIPs/pull/669
// fake_block_number = max(0, block.number - 3_000_000)
fakeBlockNumber := new(big.Int)
if parent.Number.Cmp(big2999999) >= 0 {
fakeBlockNumber = fakeBlockNumber.Sub(parent.Number, big2999999) // Note, parent is 1 less than the actual block number