listing.cpp

SSD5 练习2 需要的自己下载

#include "Listing.h"

using namespace std;

void Listing::add(Advertisement* ptr) 
{
	objects.push_back(ptr);
}

Listing::iterator Listing::begin() 
{
	iterator start=objects.begin();
	return start;
}

Listing::iterator Listing::end() 
{
	iterator end=objects.end();
	return end;
}

Advertisement* Listing::operator [](const int& number) 
{
	for(int i = 0;i < objects.size();i++) 
	{
		if(i == number) 
		{
			return objects[i];
		}
	}
	return NULL;
}