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Date:      Mon, 29 Jul 2013 09:19:40 +0100
From:      David Chisnall <theraven@FreeBSD.org>
To:        Raphael Kubo da Costa <rakuco@FreeBSD.org>
Cc:        Scot Hetzel <swhetzel@gmail.com>, Pasi Parviainen <pasi.parviainen@iki.fi>, "freebsd-standards@FreeBSD.org" <freebsd-standards@FreeBSD.org>, "freebsd-toolchain@FreeBSD.org" <freebsd-toolchain@FreeBSD.org>, Garrett Wollman <wollman@csail.mit.edu>, FreeBSD Current <freebsd-current@FreeBSD.org>, Tijl Coosemans <tijl@FreeBSD.org>, "O. Hartmann" <ohartman@zedat.fu-berlin.de>
Subject:   Re: CURRENT: CLANG 3.3 and -stad=c++11 and -stdlib=libc++: isnan()/isninf() oddity
Message-ID:  <BD6EC81A-C02D-4907-80D4-BEC141E9EA10@FreeBSD.org>
In-Reply-To: <861u6iv0ih.fsf@orwell.Elisa>
References:  <20130710155809.0f589c22@thor.walstatt.dyndns.org> <CD51F125-AE9E-4461-916D-CF583002B47D@FreeBSD.org> <20130710183315.725dfde0@thor.walstatt.dyndns.org> <C8C94CF2-7D5A-471B-AD63-8E961AED6274@FreeBSD.org> <20130710203200.5359fd18@thor.walstatt.dyndns.org> <51DDC04B.6040209@FreeBSD.org> <20957.49978.73666.392417@khavrinen.csail.mit.edu> <20130711130043.R920@besplex.bde.org> <FD768A6B-8B72-44A1-BC1C-14FF44CB4643@FreeBSD.org> <20130711202908.L84170@besplex.bde.org> <C00DFA94-6182-4334-9C90-8012E576E475@FreeBSD.org> <CACdU%2Bf9RmwxSiMEjOwSXHtnDwKk4xY8fmA3aBE5mzrVUkrc1Nw@mail.gmail.com> <CACdU%2Bf-LKsHsPayUYAT-cip91O=CfQg2aJ1BKC5PRd6G9Kf28w@mail.gmail.com> <20130712234749.5afa3c9b@thor.walstatt.dyndns.org> <9B0A6D14-640E-4ADD-8E58-0B7867C7C674@FreeBSD.org> <51E145CC.8080900@iki.fi> <861u6iv0ih.fsf@orwell.Elisa>

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On 28 Jul 2013, at 22:27, Raphael Kubo da Costa <rakuco@freebsd.org> =
wrote:

> This seems to have been committed in r253321, and broke some code that
> was working with r253320; namely, some code in x11/kde4-workspace
> includes math.h and calls isnan() with a const double.

Please provide a test case.  Specifically, I need to know what language =
dialect this is using, because I have tested including math.h and =
calling isnan(double) with c89, gnu89, c99, c11, c++03 and c++11 on gcc =
(for the modes that it supports) and clang.

David




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