Re: [Vala] int64 generics

[Luca Dionisi <luca dionisi gmail com>]

using Gee;

public int compare_func(int64? a, int64? b)
{
    if (a > b) return 1;
    if (a < b) return -1;
    return 0;
}

public bool equal_func(int64? a, int64? b)
{
    return a == b;
}

int main()
{
    var ar = new ArrayList<int64?>((EqualFunc)equal_func);
    ar.add((int64)1);
    ar.add((int64)2);
    ar.add((int64)4);
    ar.add((int64)3);
    ar.sort((CompareFunc)compare_func);
    foreach (int64? i in ar) stdout.printf(@"$((int64)i)\n");
    return 0;
}


On Wed, Aug 3, 2011 at 1:23 AM, rastersoft <raster rastersoft com> wrote:
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>
> Hi all:
>
> I need to create an ArrayList with int64 values. Using
>
>    var mylist = new ArrayList<int64>();
>
> returns an error: int64 is not a supported generic type argument, use
> ? to box value types
>
> I box it with
>
>    var mylist = new ArrayList<int64?>();
>
> and compiles, but the sort() function works incorrectly. I created my
> own compare function, but the results are exactly the same.
>
>    public static int mysort(int64? a, int64? b) {
>        if(a>=b) {
>            return 1;
>        } else {
>            return 0;
>        }
>    }
>
> (I tested both with int64 and int64? in the params, but is the same).
>
> How can I do it?
>
> Thanks.
>
> - --
> Nos leemos
>                 RASTER    (Linux user #228804)
> raster rastersoft com              http://www.rastersoft.com
>
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