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Subject: Re: [boost] [contract] invariant checking after destructor throw
From: Andrzej Krzemienski (akrzemi1_at_[hidden])
Date: 2012-09-03 17:36:23

2012/9/3 Dave Abrahams <dave_at_[hidden]>

> on Tue Aug 28 2012, Andrzej Krzemienski <> wrote:
> > 1. According to the standard, an object is considered destroyed (its
> > life-time has ended) when its destructor *starts*. Even if it throws an
> > exception, it is considered destroyed, so accessing its members (in order
> > to check for the invariant) may be illegal (an undefined behavior).
> It's not undefined behavior. The members and bases are not yet
> destroyed. Otherwise, how would you release any resources held in
> mmebers?

Perhaps I am being imprecise. What I mean is that at the time the invariant
would be executed, the exception would have "left" the destructor of the
derived class, so members and bases would have been destroyed.


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