On 22/07/2010 23:21, dcoder wrote:
== Quote from Steven Schveighoffer ([email protected])'s article
This is what I think you should use:
string[int[2]]
Although, I'm not sure if you can then do something like:
chessboard[[0,1]] = "Rook";
as the [0, 1] is typed as a dynamic array.  If it does work, it may
actually create [0,1] on the heap and then pass it as an int[2], which
would suck.

board[[0,0]] = "Rook";

seems to work.  thanks.  But, the foreach loop looks strange.  It looks like it
takes the hash value of the key:

  string[int[2]] board;

   board[[0,0]] = "Rook";
   board[[0,1]] = "Knight";

   foreach( pos, val; board) {
     writefln( "%s: %s", pos, val);
   }


Output:

2 9903680: Knight
2 9903696: Rook







Or, if you know how big your chessboard is (8x8 isn't a lot of memory),
then:
string[8][8] chessboard;
is pretty straightforward :)

Yes it is :)  Hehe....


Now, what if I wanted to do the following:


class Board {
   string[][] positions;

   this( int x, y) {
       // set the size of positions
   }
}

I want positions to internally represent a chess board, a tic tac toe board, or 
a
Connect Four board, etc...

But, I want to fix the dimensions of the board when the board gets instantiated,
so that I can have the compiler do all the work of bounds checking for me.  I 
can
create class variables maxx, maxy and access functions that check against the
variables, but I'm wondering if there's a way to make the compiler do it for 
you.

Is there a way?

thanks.


string[8][8] positions; // fixed size array

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