Elysian Shadows

Posted: **Sun Mar 15, 2009 10:40 am**

When I try to build my project in Visual c++ it comes up with this:

1>Game.obj : error LNK2005: "bool gameend" (?gameend@@3_NA) already defined in DisplayGrid.obj

repeated 226 times with different variables

I have looked up on google how to fix it but I do not understand most of them as I am quite new to programming. If anyone could tell me how to fix this in a way that someone quite new to programming would understand.

Posted: **Sun Mar 15, 2009 12:24 pm**

Welcome to linker hell!

Says your defining something that already exists. The easy way is to add #pragma to the first line in all your headers. Or you can wrap your headers like this for non-window machines:

Code: Select all

#ifndef _SOMETHING_UNIQUE_
#define _SOMETIHNG_UNIQUE_

(code)

#endif

If that doesn't help, then you might have to check your #includes, make sure they're executed in the right order.
Basically the pre-processors ( keywords with # ) will make sure headers are only defined once.
Hope it works, showing code helps diagnose problems alot more too.

Posted: **Sun Mar 15, 2009 12:41 pm**

If you're only going to use VC++ then you can also try a single line of code that would be equivalent to the above #ifndef wrapper guards:

Code: Select all

#pragma once

Elysian Shadows

Error LNK2005

Error LNK2005

Re: Error LNK2005

Re: Error LNK2005