passing a multidimensional array to a function?

[even821]

how would i go about passing a multidimensional array from one function to another?

[liquidfuzz]

Are you familiar with pointers? I'd try and return a pointer to the über array.

[even821]

not really familiar with them, i know the very basics of how they work, but sadly i haven't learned much about them.

mind writing a very small,simple code for how you would do it?

[Disch]

The way you do this depends on what kind of multidimentional array you're dealing with, as each kind is unique and they cannot be interchanged (ie: writing a function that works for one kind will not worth with the other kinds).

Outlines of how to pass each kind to a function are in this thread, along with some reasons why you should try to avoid MD usage and some alternatives:

http://cplusplus.com/forum/articles/17108/

[even821]

well, i wouldnt use MD arrays without a reason, i use it to create a tile map. i want to pass it to another function to avoid having to declare it inside of a public function. would it be very dumb to just declare it in a public function?

[Disch]

tile maps don't really need to be a 2D array. You can implement them easily with a 1D mimic (See above link).

They probably should be objectified anyway. Ie you should be passing around a TileMap class or something rather than the array directly.

[BHX]

I remember reading about doing this, but never bothered remembering it as I myself hadn't found a need to do such a thing (yet). I'm thinking it says that you only have to specify the second part of the array?

 
int array[2][4] = {'\0'};

void function(array[][4]);

Could be wrong as I'm pulling that from reading memory and not actual usage memory.

[even821]

well it does seem from what i have read, that you personally dont like the MD arrays, not that they are bad programming. i am i no way at all a very good programmer, but i wont change up my code based on one other programmers opinion, at least not before i know that is the only way to do something. i prefer to try t find a way that works for me, hence why i posted this post in hopes of finding a way to pas on a multidimensional array.

[TheDestroyer]

If you're using simple pointers arrays, just pass their pointers. If you're not familiar with that, use std vector, and pass by reference to avoid unnecessary copying

#include <vector>

using namespace std;

void myFunc(const vector<vector<vector<double> > >& my3DArray)
{
   //do your stuff with your array
}

int main()
{
   vector<vector<vector<double> > > array;
   array.resize(10);
   for(long i = 0; i < array.size(); i++}
   {
      array[i].resize(20);
      for(long j = 0; j < array[i].size(); j++}
      {
         array[i][j].resize(30);
      }
   }
   //now your array's size is 10x20x30. Call your function!!
   
   myFunc(array);
   return 0;
}