Re: Must exception classes have copy constructors?

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Article #3940

#3940

From: David Byrden
Date: Sat, 06 Apr 1996 19:33

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Alan Griffiths <aGriffiths@ma.ccngroup.com> wrote:

>I've just tried porting some code to MSVC4 (it compiles and works with 
>SC7.1 and BC4.5).
>
>In effect it appears that the Microsoft compiler _requires_ anything 
>thrown as an exception to have an accessible copy constructor.  (I've 
>tended to make copy constructors private to ensure catch-by-reference
>and aviod slicing bugs.)
>
>Looking through the DWP I can't see any reason to require a copy 
>constructor, but there are references to copying temporaries.

          What DWP did you read? The January 96 version requires that the 
"throw" statement have access to the copy constructor and destructor of a 
thrown object.

                                    David
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Path: arc1-ca.pugleaf.net!fido.asd.sgi.com!austern
From: David Byrden <Goyra@iol.ie>
Newsgroups: comp.std.c++
Subject: Re: Must exception classes have copy constructors?
Date: 06 Apr 1996 11:33:33 PST
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