compiler error with global enum

I am getting this error:-

C:\C++ PROJECTS\CONSOLE\PROJECTS1\num lists menu\main.cpp(6) : fatal error C1001: INTERNAL COMPILER ERROR
(compiler file 'msc1.cpp', line 1786)

with this code. Why?

Code:

---

//// A menu that lists various sets of numbers///

#include<iostream>
using namespace std;

enum Choice{square = 1, cube, exit};

int DoMenu(void);

int main(void)
{
       
        int choice = 0;

        while(choice != exit)
        {
                choice = DoMenu();               

                switch(choice)
                {
                case square:
                        cout << "Square\n";
                        break;

                case cube:
                        cout << "Cube\n";
                        break;

                case exit:
                        cout << "Byee!\n";
                        break;
                }

        }

        return(0);
}

int DoMenu(void)
{
        int choice = 0;

        cout << "1. Square Numbers\n"
                << "2. Cube Numbers\n"
                << "3. Exit\n";

        cin >> choice;

        return(choice);
}

---

Thanks Mark S.

There is a standard function known as exit in <cstdlib>, your <iostream> implementation may contain this library in it. Whether it contains it as <cstdlib> or <stdlib.h>, I don't know, but the former would cause a big conflict with your using directive and the latter would cause a conflict no matter what. I don't know why it wouldn't give you a clearer error if that was the problem, but it's the only problem I see. Try changing exit to something else.

If you want to keep exit (read, if you MUST keep exit. I doubt you MUST), you can enclose the enum declaration in a namespace.

Code:

---

namespace foo {
    enum bar { hello, exit };
}

int main() {
    foo::bar test = foo::exit;
    if( test == foo::exit )
        std::cout << "test is of type bar. Bar is inside namespace foo. Bye";
}

---

Why not just capatolise it, or call it quit or QUIT or something like that. Ware of restricted words