链接器错误，未定义对模板化构造函数的引用

我正在尝试创建模板化函数，该函数将T类型的向量作为输入并将其划分为多个线程。这是通过构建模板化类型为 T "VectorWorker"的对象来完成的，这些对象带有迭代器到他们需要处理的数据的开头和结尾。

我遇到了一个链接器错误，其中模板化的 std：：vec：：const_iterators 我试图传递给 VectorWorker 构造函数找不到相应的构造函数。我的理解是，我用来调用构造函数的参数类型与我定义的构造函数中的参数类型不同。

构造 VectorWorker 的模板化函数的相关行是：

/* function to create initial worker that spawns more workers*/
template <typename T>
void makeWorkers(const std::vector<T>& initializerVector)
{
  int quotient = initializerVector.size()/NUMTHREADS; // divide by number of threads
  int remainder = initializerVector.size()%NUMTHREADS; //find remainder after division which will have to be distributed
  //store the iterators for all our workers in a 2 X NUMTHREADS matrix. Where first column is each workers beginning iterator
  //and second column is each worker's ending iterator
  typename std::vector<T>::const_iterator itArray[NUMTHREADS][2];
  VectorWorker<T> workerArray [NUMTHREADS]; //instantiate array to hold all workers
  std::thread threadArray[NUMTHREADS]; //instantiate array to hold threads which will run worker's work() method
  //The first "remainder" distances should be quotient+1, the remaining should just be quotient to yield
  // remainder(quotient+1)+(N-remainder)(quotient) = N*Quotient+remainder

  itArray[0][0] = initializerVector.begin();
  if(remainder ==0)
  {
    remainder=NUMTHREADS; //to prevent division by zero
    itArray[0][1] = initializerVector.cbegin()+quotient-1; //limit distance between first two iterators to quotient
  }
  else
    itArray[0][1] = initializerVector.cbegin()+quotient-1; //The distance between first two iterators should be quotient+1

  for (int i=1; i<NUMTHREADS; ++i)
  {
    itArray[i][0]=itArray[i-1][0]+quotient+1-(int)(i<remainder);
    itArray[i][1]=itArray[i-1][1]+quotient+1-(int)(i<remainder);
  }
  /*
  typename std::vector<T>::const_iterator begin;
  begin = itArray[0][0];
*/
  // construct all worker objects
  for( int i=0; i<NUMTHREADS; ++i)
  {
    workerArray[i]=VectorWorker<T>(itArray[i][0],itArray[i][1]); //copy assignment into default initialized array objects
  }

VectorWorker 的模板化类定义为：

template <typename T>
class VectorWorker
{
public:
    VectorWorker<T>() = default;
    VectorWorker<T>( typename std::vector<T>::const_iterator begin,  typename std::vector<T>::const_iterator end);
    void Work() const
    {
      std::cout<<"I worked"<<std::endl;
      return;
    };
private:
    typename std::vector<T>::const_iterator beginIt; /* Stores value of left iterator that defines data for this worker */
    typename std::vector<T>::const_iterator endIt; /* Stores value of right iterator that defines data for this worker */
};

最后，我收到的链接器错误是：

CMakeFiles/P2.dir/fft2d.cc.o: In function `void makeWorkers<Complex*>(std::vector<Complex*, std::allocator<Complex*> > const&)':
undefined reference to `VectorWorker<Complex*>::VectorWorker(__gnu_cxx::__normal_iterator<Complex* const*, std::vector<Complex*, std::allocator<Complex*> > >, __gnu_cxx::__normal_iterator<Complex* const*, std::vector<Complex*, std::allocator<Complex*> > >)'

编辑：产生错误的MWE：https://www.onlinegdb.com/online_c++_compiler

#include <vector>
#include <thread>
#define NUMTHREADS 4
template <typename T>
class VectorWorker
{
public:
    VectorWorker<T>() = default;
    VectorWorker<T>( typename std::vector<T>::const_iterator begin,  typename std::vector<T>::const_iterator end);
    void Work() const
    {
      std::cout<<"I worked"<<std::endl;
      return;
    };
private:
    typename std::vector<T>::const_iterator beginIt; /* Stores value of left iterator that defines data for this worker */
    typename std::vector<T>::const_iterator endIt; /* Stores value of right iterator that defines data for this worker */
};
using namespace std;
/* function to create initial worker that spawns more workers*/
template <typename T>
void makeWorkers(const std::vector<T>& initializerVector)
{
  int quotient = initializerVector.size()/NUMTHREADS; // divide by number of threads
  int remainder = initializerVector.size()%NUMTHREADS; //find remainder after division which will have to be distributed
  //store the iterators for all our workers in a 2 X NUMTHREADS matrix. Where first column is each workers beginning iterator
  //and second column is each worker's ending iterator
  typename std::vector<T>::const_iterator itArray[NUMTHREADS][2];
  VectorWorker<T> workerArray [NUMTHREADS]; //instantiate array to hold all workers
  std::thread threadArray[NUMTHREADS]; //instantiate array to hold threads which will run worker's work() method
  //The first "remainder" distances should be quotient+1, the remaining should just be quotient to yield
  // remainder(quotient+1)+(N-remainder)(quotient) = N*Quotient+remainder

  itArray[0][0] = initializerVector.begin();
  if(remainder ==0)
  {
    remainder=NUMTHREADS; //to prevent division by zero
    itArray[0][1] = initializerVector.cbegin()+quotient-1; //limit distance between first two iterators to quotient
  }
  else
    itArray[0][1] = initializerVector.cbegin()+quotient-1; //The distance between first two iterators should be quotient+1

  for (int i=1; i<NUMTHREADS; ++i)
  {
    itArray[i][0]=itArray[i-1][0]+quotient+1-(int)(i<remainder);
    itArray[i][1]=itArray[i-1][1]+quotient+1-(int)(i<remainder);
  }
  /*
  typename std::vector<T>::const_iterator begin;
  begin = itArray[0][0];
*/
  // construct all worker objects
  for( int i=0; i<NUMTHREADS; ++i)
  {
    workerArray[i]=VectorWorker<T>(itArray[i][0],itArray[i][1]); //copy assignment into default initialized array objects
  }
  return;
}

int main()
{
    cout<<"Hello World";
    std::vector<int*> testVec = {new int*, new int*};
    makeWorkers(testVec);
    return 0;
}