Method insertAdd

gbbs/sequential_ht.h:89–102

V must support ++

  // V must support ++
  inline bool insertAdd(K& vKey) {
    size_t h = firstIndex(vKey);
    while (1) {
      auto k = std::get<0>(table[h]);
      if (k == max_key) {
        table[h] = std::make_tuple(vKey, 1);
        return true;
      } else if (k == vKey) {
        std::get<1>(table[h])++;
        return false;
      }
      h = incrementIndex(h);
    }
  }

  // V must support ++, T<1> must be numeric
  inline bool insertAdd(T& v) {