https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106485
--- Comment #2 from Johel Ernesto Guerrero Peña <johelegp at gmail dot com> --- I think that's different. Actually, I think it's Clang that's wrong. As mentioned at https://cpplang.slack.com/archives/C21PKDHSL/p1656857369259539?thread_ts=1656856509.892079&cid=C21PKDHSL: > The expression of the `static_assert` is not an > [immediate function > context](https://eel.is/c++draft/expr.const#def:immediate_function_context). > Wrapping it in `[]() consteval { return s().empty(); }()` > [works](https://godbolt.org/z/PKTE7zofW), > whereas removing that `consteval` causes Clang to also complain. See https://godbolt.org/z/4GMxo13vv. ```C++ #include <string> consteval auto s() { return std::string(); } static_assert(s().empty()); // Only Clang accepts. // static_assert([]() consteval { return s().empty(); }()); // All accept. // static_assert([]() { return s().empty(); }()); // All reject. ``` Opened https://github.com/llvm/llvm-project/issues/57627 for that.
