• Patrick Down (31/31) Sep 04 2002 So I gather from the following message that
• Joe Battelle (3/5) Sep 05 2002 Interfaces are broken in a couple ways--this being one side effect. See...
• Patrick Down (34/39) Sep 06 2002 Yes, the following prints "One" which isn't right
• Patrick Down (5/7) Sep 07 2002 Disregaurd my post this seems to work. There does
• Joe Battelle (2/5) Sep 07 2002 Again, save yourself some time--read my thread on this in the group from...
• Walter (8/13) Sep 12 2002 my

Patrick Down <pat codemoon.com> writes:

So I gather from the following message that
interfaces on a class are not inherited?

err.d(28): cannot implicitly convert Fred to Foo

interface Foo
{
  void doTheThing();
}

class Bar : Foo
{
  void doTheThing()
  {
    printf("one\n");
  }
}

class Fred : Bar
{
  void doTheThing()
  {
    printf("two\n");
  }
}

int main(char[][] args)
{
  Fred f = new Fred();
  
  Foo fi = f;
  
  fi.doTheThing();
  
  return 0;
}

Joe Battelle <Joe_member pathlink.com> writes:

So I gather from the following message that
interfaces on a class are not inherited?

Interfaces are broken in a couple ways--this being one side effect.  See my
earlier bug reports about this in the newsgroup.  I don't know when Walter plans
a fix.

Patrick Down <pat codemoon.com> writes:

Joe Battelle <Joe_member pathlink.com> wrote in
news:al70cj$1pn9$1 digitaldaemon.com: 

So I gather from the following message that
interfaces on a class are not inherited?

 Interfaces are broken in a couple ways--this being one side effect. 
 See my earlier bug reports about this in the newsgroup.  I don't know
 when Walter plans a fix.

Yes, the following prints "One" which isn't right
any way you look at it.

interface Foo
{
  void doTheThing();
}


class Alpha : Foo
{
  void doTheThing()
  {
    printf("One\n");
  }
}


class Beta : Alpha, Foo
{
  void doTheThing()
  {
    printf("Two\n");
  }
}


void func(Foo theFoo)
{
  theFoo.doTheThing();
}


int main(char[][] argv)
{
  Beta b = new Beta();
  
  func(b);
  
  return 0;
}

Patrick Down <pat codemoon.com> writes:

Patrick Down <pat codemoon.com> wrote in 
news:Xns9281E2CE8BD23patcodemooncom 63.105.9.61:

 Yes, the following prints "One" which isn't right
 any way you look at it.

Disregaurd my post this seems to work.  There does
seem to be something odd about the way interfaces
are working but I haven't pinned it down yet.

Joe Battelle <Joe_member pathlink.com> writes:

Disregaurd my post this seems to work.  There does
seem to be something odd about the way interfaces
are working but I haven't pinned it down yet.

Again, save yourself some time--read my thread on this in the group from a
couple weeks ago.

"Walter" <walter digitalmars.com> writes:

"Joe Battelle" <Joe_member pathlink.com> wrote in message
news:al70cj$1pn9$1 digitaldaemon.com...
So I gather from the following message that
interfaces on a class are not inherited?

 Interfaces are broken in a couple ways--this being one side effect.  See

my
 earlier bug reports about this in the newsgroup.  I don't know when Walter

plans
 a fix.

I haven't forgotten about it. I intend to focus on it after implementing
raii. It's not a trivial problem and I want to clear the table of
distractions <g>.

-Walter