Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Quick C++ -> C# port Question : Octree *m_children[8]; becomes???

Posted on 2006-06-13
3
Medium Priority
?
727 Views
Last Modified: 2012-06-21
Im following a tutorial as such:

http://kurtm.flipcode.com/devlog-OctreesforPotentialColliders.shtml

Basically we have a constructor:

    Octree()
    {
        for(int i=0; i<8; i++)
        {
            m_children[i] = NULL;
         }
    }

Which setups up the octree

The thing is at the bottom we declare m_children :

Octree      *m_children[8];

Which is basically the type Octree which has pointer to an array of 8???

Sorry just mixing things up here a little.

0
Comment
Question by:directxBOB
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 

Author Comment

by:directxBOB
ID: 16900115
Just to update:

  MTOcTree[] children = new MTOcTree[8];

This is what I have ported too, I believe it to be correct but I could be completely reading it arse ways,.... Damn Java has corrupted me.
0
 
LVL 21

Accepted Solution

by:
MogalManic earned 2000 total points
ID: 16901258
You are basically correct.  One of the uses of pointers in C++ is so that the object gets allocated on the heap instead of the stack.  If the C++ programmer of had declared
  Octree      m_children[8];
the program would have created 8 Octree objects INSIDE the contained class.

This is not the case inc C#.  In C# all object declarations are in actuality just a handle, so you are correct in that in C# the code should read
  MTOcTree[] children = new MTOcTree[8];
which means declare array of 8 handles to MTOcTree objects
0
 

Author Comment

by:directxBOB
ID: 16907899
excellent thanks
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
Want to learn how to record your desktop screen without having to use an outside camera. Click on this video and learn how to use the cool google extension called "Screencastify"! Step 1: Open a new google tab Step 2: Go to the left hand upper corn…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…
Suggested Courses

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question