Re: [Vala] Multidimensional arrays - help with using them.

[Yu Feng <rainwoodman gmail com>]

On Fri, 2009-04-03 at 23:54 +0200, Leonti Bielski wrote:
> For me tt works only for accessing elements.
> For example:
>
> int[,] some_array = new [2,2];
>
> Makes 2x2 array of ints.
>
> int something = some_array[0,0];
> But I still cannot resize it :(

No you can't. array.resize only works for 1d array. It produces wrong
ccode for multidimension array.

I would suggest write your own resizable 2d array.

struct Array2D {
        /*read-only*/
        public int NX;
        public int NY;
        private int[] storage;

        public Array2D(int NX, int NY);
        public int get(int x, int y);
        public set(int x, int y, int value);
        public void resize(int NNX, int NNY);
}

Yu
> Leonti
>
> On Fri, Apr 3, 2009 at 11:46 PM, Yu Feng <rainwoodman gmail com> wrote:
> > I remember back in some versions
> >
> > array[1, 2] works
> >
> > Yu
> > On Fri, 2009-04-03 at 21:05 +0200, Leonti Bielski wrote:
> > > It's gotta be a way to do it :(
> > > Maybe by using lists or something similar?
> > >
> > > Leonti
> > >
> > > On Fri, Apr 3, 2009 at 8:01 PM, lariamat <interflug1 gmx net> wrote:
> > > > Hello
> > > > I guess, it is a bug.
> > > > There are several issues with multidimensional arrays:
> > > > http://bugzilla.gnome.org/show_bug.cgi?id=548428
> > > > http://bugzilla.gnome.org/show_bug.cgi?id=548429
> > > > http://bugzilla.gnome.org/show_bug.cgi?id=576611
> > > > Also using arrays by reference is not working.
> > > > Regards,
> > > > lariamat
> > > >
> > > >
> > > > Am Freitag, den 03.04.2009, 18:48 +0200 schrieb Leonti Bielski:
> > > > > Hello!
> > > > > I need to use multidimensional array of ints, so this is what I do:
> > > > >
> > > > > int[][] some_array = {}; //declaring an array of int[]
> > > > > int[] some = {1,2,3}; // declaring array of ints
> > > > > some_array += some; // adding this array to 2D array - this works
> > > > >
> > > > > some_array[0] = some; // this doesn't work
> > > > > some_array[0] += 2; //this doesn't work
> > > > >
> > > > > Why those last 2 examples don't work?
> > > > >
> > > > > What I need to do is to add some values to existing inner array of
> > > > > multidimensional one (as in second non-working example).
> > > > > How do I do that?
> > > > >
> > > > > Leonti
> > > > > _______________________________________________
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