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Re: What is a `**ppEnum`?

From Ralf Fassel <ralfixx@gmx.de>
Newsgroups comp.lang.c++
Subject Re: What is a `**ppEnum`?
Date 2022-11-15 10:17 +0100
Message-ID <ygatu3037b1.fsf@akutech.de> (permalink)
References <tksuro$1nh25$1@dont-email.me> <tktg4l$1ov53$1@dont-email.me> <tku3bp$1qm2f$2@dont-email.me>

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* T <T@invalid.invalid>
| A pointer to a pointer.  Geez! I am going to write that up in my C
| notes that I use with native call.

In c++, you have references to change a variable passed 'down' to a
function.  But in C it is either return-value (which in your case is
already taken by the HRESULT success/failure indication), globals or
pointers.  So if you want to change a pointer, you need to pass the
address of that pointer, i.e. pointer-to-pointer.

R'

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What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 00:39 -0800
  Re: What is a `**ppEnum`? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-11-14 01:29 -0800
    Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 01:46 -0800
      Re: What is a `**ppEnum`? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-11-14 01:52 -0800
        Re: What is a `**ppEnum`? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-11-14 01:55 -0800
      Re: What is a `**ppEnum`? Öö Tiib <ootiib@hot.ee> - 2022-11-14 02:30 -0800
        Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 02:38 -0800
          Re: What is a `**ppEnum`? Öö Tiib <ootiib@hot.ee> - 2022-11-14 02:48 -0800
  Re: What is a `**ppEnum`? Öö Tiib <ootiib@hot.ee> - 2022-11-14 01:39 -0800
    Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 01:48 -0800
      Re: What is a `**ppEnum`? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-11-14 02:01 -0800
      Re: What is a `**ppEnum`? Öö Tiib <ootiib@hot.ee> - 2022-11-14 02:33 -0800
        Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 02:59 -0800
          Re: What is a `**ppEnum`? Öö Tiib <ootiib@hot.ee> - 2022-11-14 03:33 -0800
            Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 11:10 -0800
          Re: What is a `**ppEnum`? Juha Nieminen <nospam@thanks.invalid> - 2022-11-16 09:47 +0000
            Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-16 15:55 -0800
              Re: What is a `**ppEnum`? scott@slp53.sl.home (Scott Lurndal) - 2022-11-17 00:19 +0000
              Re: What is a `**ppEnum`? Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-11-17 01:21 +0000
                Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-16 18:01 -0800
                Re: What is a `**ppEnum`? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-11-16 18:40 -0800
                Re: What is a `**ppEnum`? Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-11-17 04:18 +0000
              Re: What is a `**ppEnum`? Juha Nieminen <nospam@thanks.invalid> - 2022-11-17 08:25 +0000
                Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-17 00:31 -0800
                Re: What is a `**ppEnum`? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-11-17 10:17 -0800
              Re: What is a `**ppEnum`? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-11-17 13:03 +0000
                Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-17 10:28 -0800
          Re: What is a `**ppEnum`? Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-11-17 03:36 +0000
            Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-16 20:57 -0800
  Re: What is a `**ppEnum`? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-11-14 14:34 +0100
    Re: What is a `**ppEnum`? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-11-14 14:44 +0100
    Re: What is a `**ppEnum`? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-11-14 09:12 -0800
    Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-14 11:02 -0800
      Re: What is a `**ppEnum`? Ralf Fassel <ralfixx@gmx.de> - 2022-11-15 10:17 +0100
        Re: What is a `**ppEnum`? Öö Tiib <ootiib@hot.ee> - 2022-11-15 04:24 -0800
      Re: What is a `**ppEnum`? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-11-15 14:04 +0100
        Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-15 08:28 -0800
          Re: What is a `**ppEnum`? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-11-17 16:21 +0100
            Re: What is a `**ppEnum`? T <T@invalid.invalid> - 2022-11-17 16:39 -0800
              Re: What is a `**ppEnum`? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-11-19 14:16 +0100

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