Function maxValOutput2

example/performance.cpp:125–137

}

int64_t maxValOutput2(Blockchain &chain, int start, int stop) {
    auto extract = [](const Transaction &tx) {
        int64_t maxValue = 0;
        for(auto output : tx.outputs()) {
            maxValue = std::max(output.getValue(), maxValue);
        }
        return maxValue;
    };
    
    auto combine = [](int64_t &a, int64_t &b) -> int64_t & { a = std::max(a,b); return a; };
    
    return chain[{start, stop}].mapReduce<int64_t>(extract, combine);
}