gcc/testsuite/g++.dg/cpp2a/concepts-partial-spec11.C


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// PR c++/103678
// { dg-do compile { target c++20 } }

template<class>
struct A {
 template<class...>
 struct B;
};

template<class A_t>
template<class B_t>
struct A<A_t>::B<B_t> {};

template<class A_t>
template<class B_t>
requires requires {
 typename B_t;
}
struct A<A_t>::B<B_t> {};