Managed C++/CLI

#include <iostream>
#include "include/base/try.h" 
int main (int argc, char** argv)
{
  peng::print2(argc, argv);
  return 0;
}</iostream>

#ifndef __TRY_H
#define __TRY_H
namespace peng
{
	void print2(int& argc, char**& argv);
}

#include "try.h"
void peng::print2(int& argc, char**& argv)
{
	std::cout<<"hurra"<<std::endl;
}

example0.5.cpp:(.text+0x136): undefined reference to 'peng::print2(int&, char**&)'
collect2: ld returned 1 exit status

namespace peng
{
	void print2(int& argc, char**& argv)
	{
		std::cout<<"huraa"<<std::endl;
	}
}

#pragma once

using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace cli;  //something I think MSDN said I had to do

namespace MapEdit
{
	//better than a "magic number".  there can only be 3 different types of terrain per square
	//used in the TerrainTypes array
	const int MAX_TERRAIN = 3;

	public ref class Zone : public System::Windows::Forms::PictureBox
	{
		
	public:
		enum Terrain //says I can't mix types
		{
			Plain,
			Hill,
			Wood,
			Marsh,
			Stream,
			River,
			ShoreLine,
			Impassable
		};
		
		array<byte^> ^TerrainTypes; //this doesn't work
		int TerrainTypes[3]; //neither does this.

STDMETHODIMP MyExchExtCommands::QueryHelpText(UINT cmdid, ULONG ulFlags,
                                              LPTSTR psz, UINT cch)
{

 HRESULT hr = S_FALSE;

 if (cmdid == MyCmdid)
 {
  if (ulFlags == EECQHT_STATUS)
    lstrcpyn(psz, "Some status text", cch);

  if (ulFlags == EECQHT_TOOLTIP)
    lstrcpyn(psz, "Some tooltip text", cch);

  hr = S_OK;
 }

 return hr;
}