Class CBlockIndexWorkComparator

src/main.cpp:185–204

namespace
{
struct CBlockIndexWorkComparator {
    bool operator()(CBlockIndex* pa, CBlockIndex* pb) const
    {
        // First sort by most total work, ...
        if (pa->nChainWork > pb->nChainWork) return false;
        if (pa->nChainWork < pb->nChainWork) return true;

        // ... then by earliest time received, ...
        if (pa->nSequenceId < pb->nSequenceId) return false;
        if (pa->nSequenceId > pb->nSequenceId) return true;

        // Use pointer address as tie breaker (should only happen with blocks
        // loaded from disk, as those all have id 0).
        if (pa < pb) return false;
        if (pa > pb) return true;

        // Identical blocks.
        return false;
    }
};

CBlockIndex* pindexBestInvalid;