Can't access a static private data member from a friend function?

[JustSomeGuy]

I have a class with a private data member and I want to access it
from a friend function, but Visual Studio 2003 .NET won't let me.

class MyClass
{
private:
static int level;
public:
friend ostream & operator<<(ostream & x, const MyClass & c);
}

int MyClass::level = 0;

ostream & operator<<(ostream & x, const MyClass & c)
{
O << c.level;
}

 

[Jonathan Turkanis]

I have a class with a private data member and I want to access it
from a friend function, but Visual Studio 2003 .NET won't let me.

class MyClass
{
private:
static int level;
public:
friend ostream & operator<<(ostream & x, const MyClass & c);
}

int MyClass::level = 0;

ostream & operator<<(ostream & x, const MyClass & c)
{
O << c.level;
}

Post some code that has some hope of compiling. Among other things, you've
omitted the semicolon at the end of the definition of MyClass, you've used an
undeclared variable O in the implementation of operator<<, and the function
doesn't return a value.

Jonathan

 

[Sumit Rajan]

I have a class with a private data member and I want to access it
from a friend function, but Visual Studio 2003 .NET won't let me.

#include <iostream>

using namespace std;

class MyClass
{
private:
static int level;
public:
friend ostream & operator<<(ostream & x, const MyClass & c);
}

missing ;

int MyClass::level = 0;

ostream & operator<<(ostream & x, const MyClass & c)
{
O << c.level;

x << c.level; //or "x << MyClass::level;"
return x; // undefined behaviour if you forget to return x

}

Regards,
Sumit.

 

[Daniel Mitchell]

I have a class with a private data member and I want to access it
from a friend function, but Visual Studio 2003 .NET won't let me.

class MyClass
{
private:
static int level;
public:
friend ostream & operator<<(ostream & x, const MyClass & c);
}

int MyClass::level = 0;

ostream & operator<<(ostream & x, const MyClass & c)
{
O << c.level;
}

ostream& operator<<( ostream& x, const MyClass& c )
{ return x << c::level; }

 

[Daniel Mitchell]

ostream& operator<<( ostream& x, const MyClass& c )
{ return x << c::level; }

I'm retarded. Sorry for wasting everyones time.

 

[JustSomeGuy]

I'm retarded. Sorry for wasting everyones time.

I doubt that... Thank you.