Method CMerkleBlock

src/merkleblock.cpp:30–55

}

CMerkleBlock::CMerkleBlock(const CBlock& block, CBloomFilter* filter, const std::set<uint256>* txids)
{
    header = block.GetBlockHeader();

    std::vector<bool> vMatch;
    std::vector<uint256> vHashes;

    vMatch.reserve(block.vtx.size());
    vHashes.reserve(block.vtx.size());

    for (unsigned int i = 0; i < block.vtx.size(); i++)
    {
        const uint256& hash = block.vtx[i]->GetHash();
        if (txids && txids->count(hash)) {
            vMatch.push_back(true);
        } else if (filter && filter->IsRelevantAndUpdate(*block.vtx[i])) {
            vMatch.push_back(true);
            vMatchedTxn.emplace_back(i, hash);
        } else {
            vMatch.push_back(false);
        }
        vHashes.push_back(hash);
    }

    txn = CPartialMerkleTree(vHashes, vMatch);
}

uint256 CPartialMerkleTree::CalcHash(int height, unsigned int pos, const std::vector<uint256> &vTxid) {
    //we can never have zero txs in a merkle block, we always need the coinbase tx