https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85908
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|UNCONFIRMED |RESOLVED CC| |mpolacek at gcc dot gnu.org --- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Compiles fine with -std=c++17 -fconcepts-ts. There's error: the ‘bool’ keyword is not allowed in a C++20 concept definition [-fpermissive] so I'm not adding the test.