Re: Are throwing default constructors bad style, and if so, why?

From:
Andrei Alexandrescu <SeeWebsiteForEmail@erdani.org>
Newsgroups:
comp.lang.c++.moderated
Date:
Wed, 24 Sep 2008 17:41:50 CST
Message-ID:
<K7pL7x.195E@beaver.cs.washington.edu>
James Hopkin wrote:

On Sep 23, 1:29 am, Andrei Alexandrescu
<SeeWebsiteForEm...@erdani.org> wrote:

Mathias Gaunard wrote:

All default constructors of containers are not required to be nothrow.
Electronic Arts has asked the standard to change that, however,
showing their own EASTL as an improvement upon the STL.

I'm of the same opinion as them.

Andrei


Me too, but I don't think it implies much about whether throwing
default constructors *in general* are problematic.


I agree. So let me restart. Do you agree that in a GC system, there
should be _some_ constructor that doesn't throw (that being the
constructor called when the object enters the destroyed state)? If we do
agree on that, what remains is to define that constructor.

I think extrapolating too much from containers can be helpful but
potentially misleading. Over-generalising in the other direction:
containers are more malleable and have simpler invariants than a lot
of types.


I agree with that too.

Andrei

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