From: Johannes Sixt <j6t@kdbg.org>
Date: Mon, 15 Jul 2019 17:30:09 GMT
Subject: Re: [PATCH] range-diff: fix some 'hdr-check' and sparse warnings
Message-ID: <4be7a0a1-0256-40c3-4abc-d3d9302f527b@kdbg.org>
In-Reply-To: <20190715144602.GA26636@sigill.intra.peff.net>

Am 15.07.19 um 16:46 schrieb Jeff King:
> On Sun, Jul 14, 2019 at 10:30:27AM +0200, Johannes Sixt wrote:
>>> But it does fall down
>>> when the first element _has_ to be a struct (like, say, any user of our
>>> hashmap.[ch] interface).
>>
>> No, it does not. It is not necessary to spell out nested structs in the
>> initializer.
> 
> Ah, that is news to me. I know that this compiles OK with "gcc -Wall",
> but is it guaranteed by the standard?

Yes; see http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1124.pdf,
6.7.8 §20, in particular, the sentence beginning with "Otherwise".

-- Hannes