[Bug preprocessor/92696] #pragma GCC diagnostic ... interferes with if/else

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92696

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-11-27
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Diagnostic pragmas only work reliably at namespace-scope, not within functions.
I thought that was documented, but maybe it's just something I learnt the hard
way.