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Header problems

General and Gameplay Programming Programming

Started by Nazrix December 23, 2002 03:38 PM

4 comments, last by Nazrix 21 years, 3 months ago

Nazrix

307

Author

December 23, 2002 03:38 PM

I'm having a problem with including headers:

    
// Npc.h


#include "mission.h"


class Npc : public Person
{

Mission *currMission;

  
      
// Mission.h


#include "npc.h"

class Mission
{
   public:
	
   Npc *told,  //npc that told the npc to do the mission

       *involved; //npc doing the mission

So, basically each header needs the other and that seems to be giving me problems. If Npc.h includes mission.h, mission.h doesn't know what the class Npc is. A CRPG in development... Need help? Well, go FAQ yourself. [edited by - Nazrix on December 23, 2002 4:39:40 PM]

Need help? Well, go FAQ yourself. "Just don't look at the hole." -- Unspoken_Magi

Nazrix

307

Author

December 23, 2002 03:41 PM

The errors are:

Compiling...
main.cpp
c:\documents and settings\shizzle nizzle\my documents\vcprojects\backed up ai\mission.h(13) : error C2143: syntax error : missing ';' before '*'
c:\documents and settings\shizzle nizzle\my documents\vcprojects\backed up ai\mission.h(13) : error C2501: 'Npc' : missing storage-class or type specifiers
c:\documents and settings\shizzle nizzle\my documents\vcprojects\backed up ai\mission.h(13) : error C2501: 'told' : missing storage-class or type specifiers
c:\documents and settings\shizzle nizzle\my documents\vcprojects\backed up ai\mission.h(14) : error C2501: 'involved' : missing storage-class or type specifiers

[edited by - Nazrix on December 23, 2002 4:41:41 PM]

Need help? Well, go FAQ yourself. "Just don't look at the hole." -- Unspoken_Magi

antareus

576

December 23, 2002 04:19 PM

You have circular include problems.

Use forward declarations. I''m not sure how you choose which one goes where though, hopefully someone will clarify.

E.g. in mission.h you can put:

class Npc;

before everything and not include the "npc.h" file explicitly.

Oh and watch the public members

--God has paid us the intolerable compliment of loving us, in the deepest, most tragic, most inexorable sense.- C.S. Lewis

Nazrix

307

Author

December 23, 2002 04:22 PM

oh I see...

thanks for the info

Need help? Well, go FAQ yourself. "Just don't look at the hole." -- Unspoken_Magi

Run_The_Shadows

634

December 23, 2002 04:45 PM

Weird, seeing an old-timer posting help for a basic topic.

-[Image Sig removed by Run pending staff/mod consultation]
-ryan@lecherousjester.com

Nazrix

307

Author

December 23, 2002 05:26 PM

yeah you'd be suprised how little I know.

[edited by - Nazrix on December 23, 2002 6:26:50 PM]

Need help? Well, go FAQ yourself. "Just don't look at the hole." -- Unspoken_Magi

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