Re: [iproute PATCH v3 0/6] Big C99 style initializer rework

On 6/28/16 11:37 AM, Phil Sutter wrote:

quoted

quoted

I saw these too with gcc-3.4.6 but not with 5.3.0. It appears to be a
gcc bug[1]. One possible workaround is to match the brace level of the
first field, but it's quite ugly: [2]. Another way might be to
initialize one of the fields to zero, like so:

| struct ifreq ifr = { .ifr_qlen = 0 };

What do you think?

Thanks, Phil

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
[2] http://nwl.cc/cgi-bin/git/gitweb.cgi?p=iproute2.git;a=commitdiff;h=a1cbf2b63c995b2f633c5b4699248ab308b201d2;hp=3809cfec65b03716d1d0360338126df4b4f3fbf6

I am using gcc on Debian stable which is 5.3.1.

Hmm. In a fresh install of Debian 8.5 I see the warnings as well, but it
has gcc-4.9.2-10 as most recent version.

Another thing I noticed: Using empty braces ('{}') instead of the
universal zero initializer seems to work without causing warnings (at
least unless '-pedantic' is used).

since .ifr_qlen is already referenced in that function seems like your 
suggestion above (struct ifreq ifr = { .ifr_qlen = 0 };) should be 
acceptable.