Re: [preprocessor] Dropping support for compilers that do not implement variadic macros

From: Edward Diener (eldiener_at_[hidden])
Date: 2020-09-18 04:35:00

On 9/17/2020 10:48 PM, Gavin Lambert via Boost wrote:
> On 18/09/2020 13:07, Edward Diener wrote:
>> I tried:
>>
>> #pragma GCC diagnostic ignore "-Wpedantic"
>>
>> or
>>
>> #pragma GCC diagnostic warning "-Wpedantic"
>>
>> and neither does anything.
> 
> -Wpedantic isn't a thing; you need to name the specific individual 
> warnings that actually occur.  These names should be included in the 
> compiler output.

https://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Pragmas.html#Diagnostic-Pragmas

> 
> And as Andrey noted, to do this properly you'd need to push/pop the 
> warning status to avoid affecting the rest of the translation unit, 
> including user code.
> 
> (This means that at best you can only disable warnings for internal 
> usage, not for user usage.  But that's as it should be.  And you should 
> verify that whatever you do *doesn't* hide the warnings in user code, 
> otherwise you're just creating a different kind of problem.)