VERY basic classes not working

[CodeMonkey]

I'm trying to create my own type of variable, and my compiler won't have it. I can fix the errors it gives me, but by doing so I would have to change what I'm actually DOING. What's wrong?

--------------------Configuration: Windows - Win32 Debug--------------------
Compiling...
Windows.cpp

c:\program files\microsoft visual studio\vc98\include\david.h(14) : warning C4091: 'typedef ' : ignored on left of 'class _ERROR' when no variable is declared

c:\program files\microsoft visual studio\vc98\include\david.h(14) : error C2143: syntax error : missing ';' before 'constant'

c:\program files\microsoft visual studio\vc98\include\david.h(14) : fatal error C1004: unexpected end of file found
Error executing cl.exe.

Windows.exe - 2 error(s), 1 warning(s)

typedef  class _ERROR
{
    bool NewError();
    char *Message;
    bool MessageSwitch;
    bool SwitchOff();
    bool SwitchOn();

}ERROR; 

[CodeMonkey]

Nevermind. "ERROR" is pre-defined. My bad. I'll change it to "ERR".

[Uraldor]

class _ERROR
{
    // add constructor, destructor and other functions here.
};

[nvoigt]

...and in C++ you don't need that typedef anymore. Just name your class ERROR ( or something else if it's already used ).