Re: [boost] [system][filesystem v3] Question about error_codearguments

Subject: Re: [boost] [system][filesystem v3] Question about error_codearguments
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2009-10-31 07:48:59

Detlef Vollmann wrote:

> But the basic problem of throwing exceptions from destructors exists,
> and is IMO a major flaw of how exception handling works in C++,
> but I don't think that this will change.

FWIW, the language allows to work around this problem. You can use 
std::uncaught_exception to detect whether to throw exception in a 
destructor or not.

Regarding the original idea of returning an object that would throw in 
its destructor, I don't see this problem at all, as this object can only 
be returned if there is no exception propagating. However, I can't say 
I'm in favor of this idea.