从vector构造c ++参数包

Question

虽然我的最终用例不同，但我基本上想解决这个问题：

// Assumption: Length of the Fields is same as that of vector.
template<typename... Fields>
void Increment(const string &name, const std::vector<string> &fields) {

// *** How do I implement this function so that I can call something like:
// SpecializedCounter<typeof(Fields)...> counter = new Counter<typeof(fields)>();
// counter->Increment(name, field_pack);

}

template <typename... Fields>
class SpecializedCounter : public Counter<Fields...> {

  // public Counter provides a generalized interface for how to increment the counters.
  void Increment(const string &name, const Fields... &fields) {
      // I know how to implement this.
  }

};

问题的关键是，如何将列表/向量或可迭代类型转换为参数包。如果这个问题是双重的，我会很高兴的！ ：）