what the heck!? what's up with this?

[Yonatan]

In Standard C++, the header file iostream.h is not defined. A compiler doesn't have to have this header file to be compliant with the standard. Instead, there is iostream, and the namespace std.

// Instead of:
#include <iostream.h>

// You should use:
#include <iostream>
using namespace std;

// The rest of the code is the same:
int main()
{
	cout << "Hello, world!" << endl;
	return 0;
}

Oh, and also, instead of using "\n" it is common to use "endl", since "endl" also flushes the stream and "\n" doesn't.

There is an online compiler at http://www.comeaucomputing.com/tryitout/ which compiles (but does not link) your code. It's good for checking whether your code complies to the C++ standard. Great for finding all kinds of silly bugs in the VC++ compiler, and there are many