Re: [LTP] [PATCH 4/4] lib: add tst_res_r.c

[Mike Frysinger <vapier@gentoo.org>]

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On Thursday, February 13, 2014 14:05:32 Alexey Kodanev wrote:
> On 02/13/2014 12:47 PM, Mike Frysinger wrote:
> > On Tuesday, February 11, 2014 13:48:10 Alexey Kodanev wrote:
> >> +static int get_tst_count()
> > 
> > random note: never never never use () with functions.  always always
> > always
> > use (void).  i'm guessing you're not aware, but what you've written here
> > may> 
> > be called (warning free!) like so:
> > 	get_tst_count(1, 2, 3);
> > 
> > yes, even with -W -Wall -Wextra.  please stamp this horrible habit out of
> > your code.
> 
> Thank you for explanation!
> There is a trick to try g++ to compile the code, it will throw an error
> on that and stops compilation.

yeah, C++ fixed this historical wart of C.  sorry for not clarifying.

iiuc (and i could be wrong as i'm not old enough to have lived through it), 
this dates back to when C (ANSI?) didn't have prototypes.  with a lot of code 
out there relying on the behavior, gcc never stopped accepting it.

i wonder if we could argue for like a newer GNU standard to reject it.
-mike

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