--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/g++.dg/cpp2a/concepts-pr65636.C Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,8 @@ +// { dg-do compile { target c++2a } } + +using TD = int; + +template<typename T> +concept C = requires () { typename TD; }; + +static_assert(C<int>, "");