Re: error: invalid uninstantiatable type `<invalid>' in cast to ...

["Carlos Pereira" <carlao2005 gmail com>]

WOW! Dimitrov!!!

Worked perfectly!!!!

Thanks very very much!!!

But, did you (or anyone) understand what happened?

You have used another way to build a matrix (an array of arrays). Why
not the original matrix worked?

Well, anyway, thanks a lot again!

Best regards!

Carlos



On Sun, Oct 26, 2008 at 6:34 PM, Димитров Вячеслав <bordimida mail ru> wrote:
> On Sun, 26 Oct 2008 21:01:29 +0300, Carlos Pereira <carlao2005 gmail com>
> wrote:
>
>>
>> Is there any difference in the way c++ treats matrices, from how c treats
>> them??
>>
> I try to define drops_regras with calloc and code work correctly, but may be
> i don't understand you right:
>
>        GtkWidget ***drops_regras = NULL;
>        int j;
>        drops_regras = (GtkWidget ***)calloc(MAIN_nregras,
> sizeof(GtkWidget**));
>        for(j=0; j < MAIN_nregras; j++)
>        {
>                drops_regras[j] = (GtkWidget **)calloc(MAIN_narq_ent + 1,
> sizeof(GtkWidget*));
>        }
>
> =======================================
> Full my example:
>
> void processa_sistema(GtkWidget *widget, gpointer pacote[])
> {
>        GtkWidget ***drops_regras = (GtkWidget ***)pacote[0];
>        printf( "%d\n",  gtk_combo_box_get_active(
> GTK_COMBO_BOX(drops_regras[0][0] ) ) );
>
> }
>
> int main (int argc, char* argv[])
> {
>        int MAIN_nregras = 6;
>        int MAIN_narq_ent = 3;
>        gtk_init (&argc, &argv);
>
>        GtkWidget *main_table = gtk_table_new(MAIN_nregras, MAIN_narq_ent,
> true);
>        GtkWidget ***drops_regras = NULL;
>        int j;
>        drops_regras = (GtkWidget ***)calloc(MAIN_nregras,
> sizeof(GtkWidget**));
>        for(j=0; j < MAIN_nregras; j++)
>        {
>                drops_regras[j] = (GtkWidget **)calloc(MAIN_narq_ent + 1,
> sizeof(GtkWidget*));
>        }
>        GtkAttachOptions gtk_attach_options_x;
>        GtkAttachOptions gtk_attach_options_y;
>        int coluna, linha;
>
>        for(coluna=0; coluna < MAIN_narq_ent + 1; coluna++)
>        {
>                for(linha=0; linha < MAIN_nregras; linha++)
>                {
>                        drops_regras[linha][coluna] = gtk_combo_box_new();
>                        gtk_table_attach(GTK_TABLE(main_table),
>                                GTK_WIDGET(drops_regras[linha][coluna]),
>                                coluna + 1,
>                                coluna + 2,
>                                linha + 1,
>                                linha + 2,
>                                gtk_attach_options_x,
>                                gtk_attach_options_y,
>                                1, 5);
>                }
>        }
>
>        gpointer pacote2[1];
>        pacote2[0] = drops_regras;
>
>        GtkWidget *button = gtk_button_new_with_label ("Press");
>        g_signal_connect(G_OBJECT(button), "clicked",
>                G_CALLBACK(processa_sistema), pacote2);
>        GtkWidget* vbox = gtk_vbox_new (FALSE, 0);
>
>        GtkWidget *main_window = create_window ();
>        gtk_box_pack_start (GTK_BOX (vbox), GTK_WIDGET (main_table), TRUE,
> TRUE, 0);
>        gtk_box_pack_start (GTK_BOX (vbox), GTK_WIDGET (button), TRUE, TRUE,
> 0);
>        gtk_container_add (GTK_CONTAINER (main_window), vbox);
>
>        gtk_widget_show_all (main_window);
>
>        gtk_main ();
> }
>
> --
>
> Dimitrov V.
> _______________________________________________
> gtk-list mailing list
> gtk-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-list
>



-- 
=============================================
Carlos José de Almeida Pereira
Ilhéus - Bahia - Brasil

BLOG:
      http://starfightercarlao.blogspot.com
      http://starfightercarlaoenglish.blogspot.com (english version)


"Felicidade se acha é em horinhas de descuido."

"Qualquer amor já é um pouquinho de saúde, um descanso na loucura."

                                                  (Guimarães Rosa, ambas)