array_template.cpp

/* 类模板特化之数组.cpp */
#include <cstring>
#include <iostream>
using namespace std;
#define MAXSIZE 5
template <class T> class Array {
public:
  Array() {
    for (int i = 0; i < MAXSIZE; i++) {
      array[i] = 0;
    }
  }

  T &operator[](int i);
  void Sort();

private:
  T array[MAXSIZE];
};

template <class T> T &Array<T>::operator[](int i) {
  if (i < 0 || i > MAXSIZE - 1) {
    cout << "数组下标越界！" << endl;
    exit(0);
  }
  return array[i];
}

template <class T> void Array<T>::Sort() {
  int p, j;
  for (int i = 0; i < MAXSIZE - 1; i++) {
    p = i;
    for (j = i + 1; j < MAXSIZE; j++) {
      if (array[p] < array[j])
        p = j;
    }
    T t;
    t = array[i];
    array[i] = array[p];
    array[p] = t;
  }
}
template <> void Array<char *>::Sort() {
  int p, j;
  for (int i = 0; i < MAXSIZE - 1; i++) {
    p = i;
    for (j = i + 1; j < MAXSIZE; j++) {
      if (strcmp(array[p], array[j]) < 0)
        p = j;
    }
    char *t = array[i];
    array[i] = array[p];
    array[p] = t;
  }
}

int main(int argc, char const *argv[]) {
  Array<int> a1;
  Array<char *> b1;
  a1[0] = 1;
  a1[1] = 23;
  a1[2] = 6;
  a1[3] = 3;
  a1[4] = 9;
  a1.Sort();
  for (int i = 0; i < 5; i++)
    cout << a1[i] << "\t";
  cout << endl;
  b1[0] = "x1";
  b1[1] = "ya";
  b1[2] = "ad";
  b1[3] = "be";
  b1[4] = "bc";
  b1.Sort();
  for (int i = 0; i < 5; i++)
    cout << b1[i] << "\t";
  cout << endl;
  
  return 0;
}