File: concepts-partial-spec15.C

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gcc-arm-none-eabi 15%3A14.2.rel1-1
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// PR c++/111890
// { dg-do compile { target c++20 } }

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

  template<class T> requires T::value
  struct B<T> { };

  template<class T> requires (sizeof(T) == sizeof(int))
  struct B<T> {
    friend void operator+(B&, int) { }
  };
};

void f(A<int>::B<int> b) {
  b + 0;
}