Gentoo Archives: gentoo-dev

From: Nikos Chantziaras <realnc@×××××.de>
To: gentoo-dev@l.g.o
Subject: [gentoo-dev] Re: FYI: Rules for distro-friendly packages
Date: Sun, 27 Jun 2010 18:28:13
Message-Id: i0856s$6ae$1@dough.gmane.org
In Reply to: [gentoo-dev] Re: FYI: Rules for distro-friendly packages by dev-random@mail.ru
On 06/27/2010 09:10 PM, dev-random@××××.ru wrote:
> On Sun, Jun 27, 2010 at 08:48:25PM +0300, Nikos Chantziaras wrote: >> ... >> It is allowed. Section 7.1.1, Paragraphs 2 and 3 of the C++ standard: >> ... > > Not in C. > ISO/IEC 9899:1999 (aka C99), section 6.7.1, note 101: >> The implementation may treat any register declaration simply as an auto >> declaration. However, whether or not addressable storage is actually >> used, the address of any part of an object declared with storage-class >> specifier register cannot be computed, either explicitly (by use of the >> unary& operator as discussed in 6.5.3.2) or implicitly (by converting >> an array name to a pointer as discussed in 6.3.2.1). Thus, the only >> operator that can be applied to an array declared with storage-class >> specifier register is sizeof.
Wasn't aware of the difference here. But anyway, the warning is issued by GCC for C++ too, not just C.