[LTP] [PATCH 1/3] tst_test_macros: Fix TST_EXP_*() default message

[Richard Palethorpe <rpalethorpe@suse.de>]

Hello,

Li Wang <liwang@redhat.com> writes:

> On Tue, Aug 24, 2021 at 4:48 PM Cyril Hrubis <chrubis@suse.cz> wrote:
>
>> Hi!
>> > Patchset looks good from the code layer though it is a bit complicate
>> > in 2/3 stringify handling, but that should be acceptable.
>> >
>> > My only hesitating is about ##__VA_ARGS__, because it says that is still
>> > as GNU's extension but have not got into standard C.
>>
>> Note that we have been using it in the header from the start. There were
>> just a few places where it was missing, mostly in the variants that have
>> been added later.
>>
>
> Ah great, I was neglect that point.  Hence it should be safe enough.
>
> -- 
> Regards,
> Li Wang

There is also __VA_OPT__(,) which can't be confused with concatenation.

I'm not sure we should use it thought, it seems like it was only
recently added to other compilers. Still might be a good idea to link to
the following page somewhere:

https://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html#Variadic-Macros

LGTM otherwise!

-- 
Thank you,
Richard.