BLOCK_TYPE_IS_VALID(pHead -> nBlockUse) 错误

我要写一个程序，使用虚函数进行多边形计算，但是在我完成程序后，出现了BLOCK_TYPE_IS_VALID(pHead -> nBlockUse(错误

// pointers to base class
#include <iostream>
#include "Polygon.h"
#include "Rectangle.h"
#include "Triangle.h"
using namespace std;
int main() {
Rectangle rect1(4, 5);
Rectangle rect2(3, 3);
Triangle tri(4, 4, false);
int triLength[3] = { 5, 4, 3 };
tri.setsideLength(triLength);
Polygon * p = &rect1;
cout << "Rectangle 1: " << endl;
cout << "tArea: " << p->area() << endl;
cout << "tSide: ";
p->printsideLength();
rect1.printsideLength();
cout << "tTotal Side Length: " << p->totalsideLength() << endl;
p = &rect2;
cout << "Rectangle 2: " << endl;
cout << "tArea: " << p->area() << endl;
cout << "tSide: ";
p->printsideLength(); 
rect2.printsideLength();
cout << "tTotal Side Length: " << p->totalsideLength() << endl;
p = &tri;
cout << "Triangle: " << endl;
cout << "tArea: " << p->area() << endl;
cout << "tSide: ";
p->printsideLength(); 
cout << "tTotal Side Length: " << p->totalsideLength() << endl;
system("pause");
return 0;
}

这是程序的主要.cpp，程序不需要输入任何东西只需要显示它的结果。

以下是三个类(cpp&h(

#ifndef Polygon_H
#define Polygon_H
#include <iostream>
using namespace std;
class Polygon{
private:
int noOfSide;
bool isAllSideEqual;
int* sideLength;
public:
Polygon();
Polygon(int n,bool s);
~Polygon();
void setsideLength(int* sl);
void printsideLength();
int totalsideLength();
virtual int area();
};
#endif

.

#include "Polygon.h"
#include <iostream>
using namespace std;
Polygon::Polygon(){
    noOfSide = 3;
    isAllSideEqual = false;
    sideLength = new int[noOfSide];
    sideLength = &sideLength[noOfSide];
};

Polygon::Polygon(int n,bool s){
    if (n<3)
    {
        noOfSide = 3;
        isAllSideEqual = false;}
    else
    {
        noOfSide = n;
        isAllSideEqual = s;
    };
    sideLength = new int[noOfSide];
    sideLength = &sideLength[noOfSide];
};
Polygon::~Polygon(){
    delete[] sideLength;
};

void Polygon::setsideLength(int* sl){
    for(int i=0;i<noOfSide;i++)
        sideLength[i] = sl[i];
};
void Polygon::printsideLength(){
    for(int i=0;i<noOfSide;i++)
        cout << sideLength[i] <<" ";
};
int Polygon::totalsideLength(){
    int total = 0;
    for(int i=0;i<noOfSide;i++)
        total += sideLength[i];
    return total;
};
int Polygon::area(){
    return 0;
};
   #ifndef Triangle_H
   #define Triangle_H
  #include <iostream>
  #include "Polygon.h"
  using namespace std;
class Triangle:public Polygon
{
private:
    int width;
    int height;
public:
    Triangle(int w,int h,bool s);
    virtual int area();
};
#endif

 #include "Triangle.h"
 #include <iostream>
  using namespace std;
 Triangle::Triangle(int w,int h,bool s){
    width = w;
    height = h;
    Polygon(3,s);
};
int Triangle::area(){
    int total = 0;
    total = (width*height)/2;
    return total;
};

  #ifndef Rectangle_H
  #define Rectangle_H
  #include <iostream>
  #include "Polygon.h"
  using namespace std;
  class Rectangle:public Polygon{
  private:
  int width;
  int height;
 public:
  Rectangle(int w,int h);
  void printsideLength();
  virtual int area();
 };
 #endif
#include "Rectangle.h"
#include <iostream>
using namespace std;
Rectangle::Rectangle(int w,int h){
    width=w;
    height=h;
    if(width = height)
        Polygon(4,true);
    else
        Polygon(4,false);
    int* size =new int[4];
    size[0] = width;
    size[1] = height;
    size[2] = width;
    size[3] = height;
    Polygon::setsideLength(size);
};
void Rectangle::printsideLength(){
    for(int i=0;i<2;i++)
        cout<< width<<" "<<height <<" ";
};
int Rectangle::area(){
    int total =0;
    total = width*height;
    return total;
};

该程序没有任何编译错误，所以唯一的问题是关于内存但是哪里错了呢？是虚拟功能部分是错误的还是任何其他部分？