[RFC 04/21] maint: Add helper macro VIR_USED

[Shi Lei]

>On Wed, Jun 10, 2020 at 09:20:32AM +0800, Shi Lei wrote:
>> The macro VIR_USED is used in generated parse/format functions to
>> avoid args-unused warnings.
>
>I mentioned in the earlier patch that we can just use G_GNUC_UNUSED
>on any parameters which might be unused. It doesn't matter if they
>really are unused or not. 

Okay.

Regards,
Shi Lei

>
>>
>> Signed-off-by: Shi Lei <shi_lei at massclouds.com>
>> ---
>>  src/internal.h | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/src/internal.h b/src/internal.h
>> index e181218..315f12d 100644
>> --- a/src/internal.h
>> +++ b/src/internal.h
>> @@ -502,3 +502,5 @@ enum {
>>  # define fprintf(fh, ...) g_fprintf(fh, __VA_ARGS__)
>> 
>>  #endif /* VIR_NO_GLIB_STDIO */
>> +
>> +#define VIR_USED(var) do { break; } while(var)
>> --
>> 2.17.1
>>
>>
>
>Regards,
>Daniel
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>