error C2065: 'cout' : undeclared identifier

Question

I am working on the \'driver\' part of my programing assignment and i keep getting this absurd error:

error C2065: \'cout\' : undeclared identifier

Answer 1

I ran across this error after just having installed vs 2010 and just trying to get a nearly identical program to work.

I've done vanilla C coding on unix-style boxes before, decided I'd play with this a bit myself.

The first program I tried was:

#include "stdafx.h"


int _tmain(int argc, _TCHAR* argv[])
{
    cout << "Hello World!";
    return 0;
}

The big thing to notice here... if you've EVER done any C coding,

int _tmain(int argc, _TCHAR* argv[])

Looks weird. it should be:

int main( int argc, char ** argv )

In my case I just changed the program to:

#include 
using namespace std;

int main()
{
     cout << "Hello world from  VS 2010!\n";
     return 0;
}

And it worked fine.

Note: Use CTRL + F5 so that the console window sticks around so you can see the results.