自己写个简单的栈

/*************************************************************************
    > File Name: Stack.h
    > Author:keson
    > Mail:[e-mail]
    > Created Time: 2014年11月21日 星期五 17时43分19秒
 ************************************************************************/

#ifndef _STACK_H
#define _STACK_H

template<typename Object>
class Stack
{

public:

    explicit Stack(int initCapacity=0):theCapacity{initCapacity}
    {objects=new Object[theCapacity];}

    //Deconstructor
    ~Stack()
    {
        delete[]objects;
    }

    Object &operator[](int index)
    {
        return objects[index];
    }
    int capacity()const
    {return theCapacity;}

    int size() const
    {
        return theSize;
    }

    bool Empty() const
    {
        return theSize==0;
    }

    void push(Object x)
    {
        if(top>=theCapacity-1)
          throw"overflow_error";
        top++;
        theSize++;
        objects[top]=x;
    }

    Object back()
    {
       if(Empty())
           throw"下溢出";
        return objects[top];
    }


    Object pop()
    {
        if(Empty())
           throw"下溢出";
        top--;
        theSize--;
        return objects[top+1];
    }

private:
    int theSize=0;
    int theCapacity;
    int top=-1;
    Object *objects;

};
#endif