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// RUN: %clang_cc1 -std=c++14 -fconcepts-ts -x c++ -verify %s
namespace nodiag {
template <typename T> requires bool(T())
struct A;
template <typename U> requires bool(U())
struct A;
} // end namespace nodiag
namespace diag {
template <typename T> requires true // expected-note{{previous template declaration is here}}
struct A;
template <typename T> struct A; // expected-error{{associated constraints differ in template redeclaration}}
template <typename T> struct B; // expected-note{{previous template declaration is here}}
template <typename T> requires true // expected-error{{associated constraints differ in template redeclaration}}
struct B;
template <typename T> requires true // expected-note{{previous template declaration is here}}
struct C;
template <typename T> requires !0 // expected-error{{associated constraints differ in template redeclaration}}
struct C;
} // end namespace diag
namespace nodiag {
struct AA {
template <typename T> requires someFunc(T())
struct A;
};
template <typename T> requires someFunc(T())
struct AA::A { };
struct AAF {
template <typename T> requires someFunc(T())
friend struct AA::A;
};
} // end namespace nodiag
namespace diag {
template <unsigned N>
struct TA {
template <template <unsigned> class TT> requires TT<N>::happy // expected-note 2{{previous template declaration is here}}
struct A;
struct AF;
};
template <unsigned N>
template <template <unsigned> class TT> struct TA<N>::A { }; // expected-error{{associated constraints differ in template redeclaration}}
template <unsigned N>
struct TA<N>::AF {
template <template <unsigned> class TT> requires TT<N + 0>::happy // expected-error{{associated constraints differ in template redeclaration}}
friend struct TA::A;
};
} // end namespace diag
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