stemp.cpp

Think in C++ 第二版源码

//: C16:Stemp.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Simple template example
#include "../require.h"
#include <iostream>
using namespace std;

template<class T>
class Array {
  static const int size = 100;
  T A[size];
public:
  T& operator[](int index) {
    require(index >= 0 && index < size);
    return A[index];
  }
};

int main() {
  Array<int> ia;
  Array<float> fa;
  for(int i = 0; i < 20; i++) {
    ia[i] = i * i;
    fa[i] = float(i) * 1.414;
  }
  for(int j = 0; j < 20; j++)
    cout << j << ": " << ia[j]
         << ", " << fa[j] << endl;
} ///:~