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Re: catch(...) and forced unwind
- From: Geoff Keating <geoffk at geoffk dot org>
- To: Jason Merrill <jason at redhat dot com>
- Cc: Matt Austern <austern at apple dot com>, Ulrich Drepper <drepper at redhat dot com>, gcc at gcc dot gnu dot org, Richard Henderson <rth at redhat dot com>, Nathan Myers <ncm at cantrip dot org>, Jakub Jelinek <jakub at redhat dot com>, wekempf at cox dot net, Mark Mitchell <mark at codesourcery dot com>, fjh at cs dot mu dot oz dot au, Benjamin Kosnik <bkoz at redhat dot com>, William Kempf <williamkempf at hotmail dot com>
- Date: 17 Dec 2003 14:59:01 -0800
- Subject: Re: catch(...) and forced unwind
- References: <xypwu91ofvf.fsf@miranda.boston.redhat.com><ud6at1wvg.fsf@boost-consulting.com><xypekv9nr9u.fsf@miranda.boston.redhat.com><u65gkyhv4.fsf@boost-consulting.com><20031214035909.GE2416@tofu.dreamhost.com><xypk74xltaa.fsf@miranda.boston.redhat.com><ullpdlksl.fsf@boost-consulting.com><xyp1xr5lh5q.fsf@miranda.boston.redhat.com><usmjlhryu.fsf@boost-consulting.com><278A5A0A-3001-11D8-8564-00039390D9E0@apple.com><usmjkbkb5.fsf@boost-consulting.com><0BB52C3C-3009-11D8-8564-00039390D9E0@apple.com><ud6aobfgy.fsf@boost-consulting.com><A156A7B0-3012-11D8-8564-00039390D9E0@apple.com><uu1409v32.fsf@boost-consulting.com><xypd6aoi0zz.fsf@miranda.boston.redhat.com>
Jason Merrill <jason@redhat.com> writes:
> On Tue, 16 Dec 2003 18:55:13 -0500, David Abrahams <dave@boost-consulting.com> wrote:
>
> > Matt Austern <austern@apple.com> writes:
> >
> >> The real issue, of course is the old one: that the people defining the
> >> POSIX standard and the people defining the C++ standard didn't
> >> spend enough time talking to each other. POSIX doesn't know
> >> anything about C++ contracts.
>
> > Nor about standard C++ library functions, I presume? Why should it
> > have any impact on the behavior of the C++ lib from a standards POV?
>
> The two standards are incompatible as written. To make pthreads and C++
> play nice together, one or both need some adjustment.
That's not really correct, though, is it? You can't write a strictly
conforming C++ program that uses threads. Pthreads doesn't impose any
requirements on C++ code when pthreads is not used. Thus, the
standards do not conflict.
--
- Geoffrey Keating <geoffk@geoffk.org>