// Arrat.h
template <typename T> //定義類模板
class Array
{
public:
Array(int s);
virtual ~Array();
virtual T& Entry(int index);
virtual void Enter(int index,const T& value);
protected:
int size;
T *element; //數據成員是T類型指針
};
// test.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "iostream.h"
#include "Arrat.h"
template <typename T> //定義函數模板,動態申請數組空間
Array<T>::Array(int s)
{
if(s>1) size=s;
else size=1;
element=new T[size];
}
template <typename T> //定義函數模板,釋放數組空間
Array<T>::~Array()
{
delete [] element;
}
template <typename T> //定義函數模板,返回第index元素值
T& Array<T>::Entry(int index)
{
return element[index];
}
template <typename T> //定義函數模板,向數組的第index單元賦值
void Array<T>::Enter(int index,const T& value)
{
element[index]=value;
}
int main(int argc, char* argv[])
{
Array<int> IntAry(5); //用int實例化,建立類模板對象
int i;
for (i=0;i<5;i++)
IntAry.Enter(i,i);
cout<<"Integer Array:"<<endl;
for (i=0;i<5;i++)
cout<<IntAry.Entry(i)<<'/t';
cout<<endl;
Array<double> DouAry(5); //用double實例化,建立模板類對象
for(i=0;i<5;i++)
DouAry.Enter(i,(i+1)*0.35);
cout<<"Double Array:"<<endl;
for (i=0;i<5;i++)
cout<<DouAry.Entry(i)<<'/t';
cout<<endl;
return 0;
}