Main.h???? - GameCreators Forum

Author

Message

Kerl

User Banned

Posted: 27th Mar 2012 07:48

In reorganizing my current project, I decided to move several functions from my main.cpp into a new class in a completely different .cpp. The problem arose when the methods in this class try to use an enum that is set up in the main.cpp. My enum is now split between the main.cpp and myClass.cpp. Is there any way to use the enum from the main.cpp? It says GameStates (my enum) not declared. It sounds stupid but could I fix that by declaring the enum in a main.h file?

Back to top

Profile

Fallout

22

Years of Service

User Offline

Joined: 1st Sep 2002

Location: Basingstoke, England

Posted: 27th Mar 2012 09:53

Link

Define your enum in myClass.h, if that makes the most sense, and make it public.

+ Code Snippet

class myClass{
public:
   enum BOB{
      blah1,
      blah2
   };
};

Include myClass.h in your main.cpp. Refer to your enum with myClass::BOB::blah1, from main.cpp, and just BOB::blah1 from myClass.cpp.

Back to top

Profile PM

Kerl

User Banned

Posted: 28th Mar 2012 08:36

Link

Thanks for the reply!
I wasn't sure if the main.cpp was a sacred file in which no header files should be created to go along with it :p Just one of those general coding standards I figured I would ask about.

Back to top

Profile

Fallout

22

Years of Service

User Offline

Joined: 1st Sep 2002

Location: Basingstoke, England

Posted: 28th Mar 2012 13:15

Link

To be honest, I'm learning C++ right now, but I've been coding OO for years in other languages. I've had similar "Can I do that?" moments, but I just plough on and see if it works.

Header files are nothing more than content that gets bolted to the top of whatever includes them. So anything you write at the top of your main.cpp file (e.g. enums, function definitions etc) can just be moved to a .H file and included.

Back to top

Profile PM

WLGfx

17

Years of Service

User Offline

Joined: 1st Nov 2007

Location: NW United Kingdom

Posted: 29th Mar 2012 00:35

Link

main.cpp isn't a 'sacred' file. DGDK handles that bit fore you as it has it's own single entry point unlike general C/C++ coding where you have main(), winmain(), etc...

Every .cpp file gets compiled just like your 'main' so all the .h files get included only as references to variables and functions from those other .cpp files, just like forward referencing. They just get thrown into another 'object' file for the linker to handle.

In general:

.h references to everything
.cpp the code (which will get linked)

Mental arithmetic? Me? (That's for computers) I can't subtract a fart from a plate of beans!
Warning! May contain Nuts!

Back to top

Profile PM Email Website

Sorry your browser is not supported!

Dark GDK / Main.h????