C++类模板中的非类型参数

#include<iostream>
using namespace std;
//类模板的<类Y参数表”中可以出现非类型参数

template<class T,int size>
class test
{
  T array[size];
public:
  test() {
    cout << "constructor was called!" << endl;
  }
  T* getArray()
  {
    return array;
  }
  void print()
  {
    cout << "array:" << endl;
    for (int i = 0; i < size; i++)
    {
      cout << array[i] << " ";
    }
    cout << endl;
  }
};
int main()
{
  /*对类模板进行实例化:test<float,40>,得到模板类(名):test<float,40>*/
  test<float,3> n;
  float k = 1.11;
  for (int i = 0; i < 3; i++)
  {
    n.getArray()[i] = k * i;
  }
  n.print();

}

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