https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44400
Eric Gallager <egallager at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |accepts-invalid Status|UNCONFIRMED |NEW Last reconfirmed| |2017-08-14 CC| |egallager at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> --- Confirmed, g++ accepts it with neither warning nor error, while clang++ rejects it like this: $ /usr/local/bin/g++ -Wall -Wextra -pedantic -c 44400.cc $ /sw/opt/llvm-3.1/bin/clang++ -Wall -Wextra -pedantic -c 44400.cc 44400.cc:2:14: error: member 'X' has the same name as its class struct X { F X; }; ^ 44400.cc:2:14: error: constructor cannot have a return type struct X { F X; }; ~ ^ 2 errors generated. $