https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105059
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|accepts-invalid |documentation Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Last reconfirmed| |2022-12-07 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- With -pedantic: <source>:2:12: warning: ISO C++ prohibits anonymous structs [-Wpedantic] 2 | struct { | ^ So I think this is just a documentation issue of what anonymous struct means with each of the initializers. Yes there is an inconsitancy with respect to () vs {} here though. Confirmed.