Slitting up code

This should be a simple question, as I am pretty new to C++

What I need is to be able to tidy up my code and access parts from other points, to me these are functions, an example of what I imagine such a thing would be like is.

I've put in samples of the code I am using, its using the irrlicht engine for it.

Code:

//The code snippet
function banana();
{
//code
scene::ISceneManager* smgr = device->getSceneManager();
}

int main();
{
   banana();
   scene::IAnimatedMesh* q3levelmesh = smgr->getMesh("room1.dmf");
   scene::ISceneNode* q3node = 0;
}

cheers.

I'm not sure what exactly you are asking about. Maybe you want a function prototype for banana() in a header file, then the function definition in a source file. In your main source file you would #include the header, and you would compile and linnk both source files in your project/makefile/command line.

Oh sorry, I should have made myself more clear.

Problem solved anyway

What I've done is used a void this time, finding I couldn't make the variables global there, then I put the variables somewhere else where they are global and hey presto, fixed

Just to give you an idea of what I did;

Code:

IrrlichtDevice *device = 0;
video::IVideoDriver* driver = 0;
scene::ISceneManager* smgr = 0;
IGUIEnvironment* guienv = 0;
scene::IAnimatedMesh* q3levelmesh = 0;
scene::ISceneNode* q3node = 0;
scene::ITriangleSelector* selector = 0;
void setup()
{
       device = createDevice(EDT_OPENGL, dimension2d<s32>(800, 600), 32, false, true, true, 0);
    
       driver = device->getVideoDriver();
       smgr = device->getSceneManager();
       guienv = device->getGUIEnvironment();
       
       
       
    
}

And then I would place

'setup();'

in int main();

and it works.

But thanks for offering your help, 'tis appreciated.