Hi everybody. I''ve started to make a new game project, and I encountered a problem. I have a WinMain a couple of classes and file general.h. general.h is a file with several globals and several functions: open error, file close it and write to it. My question is how do I make my class know this file “general.h”. I tried to include it from every file on my project including the files stdafx.cpp And stdafx.h. (which vc6 added and I don’t know their purpose.) but I always get this annoying error : Sheep.obj : error LNK2005: "int __cdecl Open_Error_File(char *)" (?Open_Error_File@@YAHPAD@Z) already defined in Game.obj Sheep.obj : error LNK2005: "int __cdecl Close_Error_File(void)" (?Close_Error_File@@YAHXZ) already defined in Game.obj Sheep.obj : error LNK2005: "int __cdecl Write_Error(char *,...)" (?Write_Error@@YAHPADZZ) already defined in Game.obj Sheep.obj : error LNK2005: "struct _iobuf * fp_error" (?fp_error@@3PAU_iobuf@@A) already defined in Game.obj Debug/SheepInSpace2.exe : fatal error LNK1169: one or more multiply defined symbols found Wont you Plz plz help me, help meeee.

I think the problem here is that you have the function definitions in general.h and because you''re including it more than once, the functions are being defined multiple times. What I would do is make a file general.cpp which actually implements these functions and make sure that general.h contains only the declarations.

For example

  // general.h// declarationsint Open_Error_File(char*);int Close_Error_File();int Write_Error(char*,...);  

  // general.cpp// definitionsint Open_Error_File(char* filename){    // blah blah}int Close_Error_File(){    // blah blah}int Write_Error_(char* string,...){    // blah blah}  

Andy.