Running into console output problem

[TimL]

I am creating a class definition file for one of my final projects for the semester, and Visual Studio is complaining about my cout and endl identifiers being undefined. Here is some of what I have in the class definition file:

#include <iostream>
using namespace std;

//...some code...

cout << "Invalid amount specified." << endl;

//...some more code... 

I can't tell why Visual Studio doesn't like the cout and endl identifiers in this file, but has no problem with them in all of my other files. Any thoughts?

[Zhuge]

Try to get the smallest possible code that reproduces the problem. As it is, I can see nothing wrong.

[TimL]

I think I solved my problem. I had forgotten to put a ; at the end of the class header. It is always the little things that trip me up...