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Merge pull request #5948 

1cc0e96 Trivial optimization: use GetAncestor to compute new target (Pieter Wuille)
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Pieter Wuille 2015-04-07 15:10:44 -07:00
parent 27e8d224e9 1cc0e96e9c
commit b36f1ce87e
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1 changed files with 3 additions and 3 deletions
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src/pow.cpp
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@ -42,9 +42,9 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
}
// Go back by what we want to be 14 days worth of blocks
const CBlockIndex* pindexFirst = pindexLast;
for (int i = 0; pindexFirst && i < params.DifficultyAdjustmentInterval()-1; i++)
pindexFirst = pindexFirst->pprev;
int nHeightFirst = pindexLast->nHeight - (params.DifficultyAdjustmentInterval()-1);
assert(nHeightFirst >= 0);
const CBlockIndex* pindexFirst = pindexLast->GetAncestor(nHeightFirst);
assert(pindexFirst);
return CalculateNextWorkRequired(pindexLast, pindexFirst->GetBlockTime(), params);