Function GetDifficulty

src/rpcblockchain.cpp:23–52

void ScriptPubKeyToJSON(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex);

double GetDifficulty(const CBlockIndex* blockindex)
{
    // Floating point number that is a multiple of the minimum difficulty,
    // minimum difficulty = 1.0.
    if (blockindex == NULL)
    {
        if (chainActive.Tip() == NULL)
            return 1.0;
        else
            blockindex = chainActive.Tip();
    }

    int nShift = (blockindex->nBits >> 24) & 0xff;

    double dDiff =
        (double)0x0000ffff / (double)(blockindex->nBits & 0x00ffffff);

    while (nShift < 29)
    {
        dDiff *= 256.0;
        nShift++;
    }
    while (nShift > 29)
    {
        dDiff /= 256.0;
        nShift--;
    }

    return dDiff;
}

UniValue blockheaderToJSON(const CBlockIndex* blockindex)
{