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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Pass by reference
Date: Fri, 09 Apr 2004 15:03:12 +0200
Organization: At home
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Dan McLeran wrote:

> Stephen Leake wrote:

>> Why would you want to pass a tagged type by copy?

Because that could be a handle requiring Initialize/Adjust/Finalize. To be
honest, forcing tagged types to be by-reference was probably a mistake.

> I don't necessarily want to. I actually would never do this in C++,
> unless the class was something very small and intended to be passed by
> value:
> 
> struct Silly
> {
>    int i;
> };

This need not to be tagged, because there is no dispatching subroutines
here. A rough C++ equivalent of a tagged type is a class with virtual
functions.

-- 
Regards,
Dmitry A. Kazakov
www.dmitry-kazakov.de