C / C++ / MFC

template<typename T> class Vector
{
public:
  class iterator
  {
    public:
    bool operator==(iterator it2)
    {
      // implementation here...
    }
  };
};

template<typename T> 
bool operator==(T it1, T it2)
{
     return true;
}

wanchao507 wrote:

according to C++Primer,we'd better declare operator== as a friend function)

/*
Visual Studio 2008
Vector is a template class,and there is a class iterator in Vector;
I declare the function operator== as the iterator's friend function because I want to
access to its private members.(according to C++Primer,we'd better 
declare operator== as a friend function)
then how to do that? how to write the friend function operator== ?
the compiler can not deduce T,help me please!

I am a Chinese student,my English is not very good,I hope
you can understand me! ^-^
*/
#include<iostream>
using namespace std;
template<typename T> bool operator==(T it1,T it2);
template<typename T> class Vector
{
public:
	class iterator
	{
		friend bool operator==<Vector<T>::iterator>(typename Vector<T>::iterator it1,typename Vector<T>::iterator it2);
	public:
		iterator(int a=0):value(a){}
	private:
		int value;

	};
};
template<typename T> bool operator==(T it1,T it2)
{
	if(it1.value!=it2.value)// now we can access its private menbers
	{
		return false;
	}
	return true;
}
int main()
{
	Vector<int>::iterator it1(0),it2(1);
	cout<<(it1==it2)<<endl;// output false
	return 0;
}

kumar sanghvi wrote:

May i know how the static variable is stored in memory...

kumar sanghvi wrote:

and is it right if i declare static variable inside class but not outside the clas...

hxhl95 wrote:

If it changes anything, this is all happening in a seperate thread, started by a call to AfxBeginThread inside a WH_KEYBOARD_LL callback function. But that shouldn't make a difference, should it?

for (int i = 0; i < argCount; ++i)
{
    MessageBox(NULL, szArgList[i], L"Arglist contents", MB_OK);
}

// Add.cpp : Defines the entry point for the application.
//

#include "stdafx.h"

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
LPWSTR *szArgList;
int argCount;

szArgList = CommandLineToArgvW(GetCommandLine(), Add 2  4 );
if (szArgList == NULL)
{
MessageBox(NULL, L"Unable to parse command line", L"Error", MB_OK);
return 10;
}

for (int i = 0; i < argCount; ++i)

{
MessageBox(NULL, szArgList[i], L"Answer is", MB_OK);
}

LocalFree(szArgList);
return 0;
}

int add(int x, int y)
{
	return x + y;
}

int add(int x, int y)

Jacob Dixon wrote:

One would be if I develop a C++ application using visual c++ 2008, is there a way for it to be converted to run on Mac OS X? Or do you have to write it over in a different IDE?

int add(int x, int y)

int add(int x, int y)
{
return x + y;
}