c – 模板问题

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

void myfunction (int i) {
  cout << " " << i;
}

int main () {
  vector<int> myvector;
  myvector.push_back(10);
  myvector.push_back(20);
  myvector.push_back(30);

  cout << "myvector contains:";
  for_each (myvector.begin(),myvector.end(),myfunction);//<-------See below
return 0;
}

但不能这样做：

template<class T>
    void myfunction (T i) {
          cout << " " << i;
        }

我怀疑它与args演绎有关,但令人气愤的是“常规”fnc被接受而模板不被接受.