Re: function to generic

["Matthew Heaney" <mheaney@on2.com>]

<kotee@ludens.elte.hu> wrote in message news:0KJ+h2G3o9zP@ludens...
> hi all
>
> i write my own data type, but i need an "=" operator for it.

Do you mean assignment, or a test for equality?  I assume you mean test for
equality:

package P is

   type T is limited private;
   function "=" (L, R : T) return Boolean;
...
end P;

> i know that generic packages can get functions as
> parameter. how it works exactly? i try to find out
> from ref guides, but i don't find it. :((

Is your package generic?  Do you want to declare a generic formal
subprogram?

generic
   type Element_Type is private;
   with function "=" (L, R : Element_Type) return Boolean is <>;
package GP is ...