[Bug c++/96477] New: GCC accepts attribute 'const' as an attribute pack

[haoxintu at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96477

            Bug ID: 96477
           Summary: GCC accepts attribute 'const' as an attribute pack
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: accepts-invalid
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: haoxintu at gmail dot com
  Target Milestone: ---

Hi, all.

Following code might be a invalid code? GCC accepts it while Clang or ICC
rejects it.

Code:
[[gnu::const ... ]] int foo (){ return 0;}

Every version from GCC-6.1 onwards behaves the same.


Thanks,
Haoxin