Using Visual C++?

[dancks]

I'm a newbie programmer, and I'm also a newbie windows programmer. I have used Mac for most of my career so I'm used to using the awesome command line tools and g++, in spite of bad things people have to say about it.

I'm trying to understand how to use pointers, so I wrote (mostly stole code) based on one of the articles from the Stanford computer science series.

This code, I don't think I changed it in any way, compiles and works fine on (ignore the lack of garbage collection I'm not there yet) Mac. I don't remember doing anything to the object files. In Visual C++ on windows 7 it gives me

1>LINK : error LNK2001: unresolved external symbol _mainCRTStartup
1>C:\Users\me\Desktop\linkedliststuff\vctest\Debug\vctest.exe : fatal error LNK1120: 1 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

#ifndef LL_H
#define LL_H
class linkedlist
{
public:
	//initializer/destructor
	linkedlist();
	~linkedlist();
	//functional
	struct node
	{
		int n;
		node *next;
	} *top,*holder;
	void add(struct node*& a, int b);
	void incorder(struct node*& a);
	void decorder(struct node*& b);
	int length(struct node* a);
	void populate(struct node*& a,int b);
	void push(int a);
	void pop();
	void print();
	void increment(int i);
};
#endif 

#include "linkedlist.h"
#include <stdlib.h>
#include <stdio.h>
linkedlist::linkedlist()
{
	top = new node;
}
linkedlist::~linkedlist()
{
}
void linkedlist::add(struct node*& a, int b)
{
	node* newNode;
	newNode = new node;
	newNode->n = b;
	newNode->next = a;
	a = newNode;
}
int linkedlist::length(node* a)
{
	node* b = a;
	int i = 0;
	while (a!=0)
	{
		a=a->next;
		i++;
	}
	return i;
}
void linkedlist::incorder(struct node*& a)
{
}
void linkedlist::decorder(struct node*& b)
{
}
void linkedlist::populate(struct node*& a,int b)
{
	while(b>0)
	{
		node* g;
		g = new node;
		g->n = b;	
		g->next = a;
		a = g;
		b--;
	}
}
void linkedlist::increment(int i)
{
	populate(top,i);
}
void linkedlist::push(int a)
{
	add(top,a);
}
void linkedlist::pop()
{
	printf("num: %d\n",top->n);
	top=top->next;
}
void linkedlist::print()
{
	node* a;
	a = new node;
	for(a=top;a!=0;a=a->next)
	{
		printf("num: %d\n",a->n);
	}
}

#include <cstdlib>
#include <iostream>
#include <string>
#include "linkedlist.h"

using namespace std;

int main()
{
	int i;
	string b;
	linkedlist c;
	while(b!="quit")
	{
		cout << "Enter command: ";
		cin >> b;
		if(b!="quit")
		{
			if(b=="push")
			{
				cout << "Enter number: ";
				cin >> i;
				c.push(i);
			}
			else if(b=="pop")
			{
				c.pop();
			}
			else if(b=="populate")
			{
				cout << "Enter number: ";
				cin >> i;
				c.increment(i);
			}
			else if(b=="print")
			{
				c.print();
			}
		}
	}
	return 0;
}

[S G H]

Probably you created the project as a Win32 app, and not as a Console app. You can also use a Empty Project.