| // RUN: %clang_cc1 -std=c++2a -x c++ -verify %s |
| |
| namespace nodiag { |
| |
| template <typename T> requires (bool(T())) |
| struct A; |
| template <typename U> requires (bool(U())) |
| struct A; |
| |
| template<typename T> |
| concept C1 = true; |
| |
| template <C1 T> requires (bool(T())) |
| struct B; |
| template <C1 U> requires (bool(U())) |
| struct B; |
| |
| } // 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{{requires clause differs in template redeclaration}} |
| |
| template <typename T> struct B; // expected-note{{previous template declaration is here}} |
| template <typename T> requires true // expected-error{{requires clause differs 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{{requires clause differs in template redeclaration}} |
| struct C; |
| |
| template<typename T> |
| concept C1 = true; |
| |
| template <C1 T> // expected-note{{previous template declaration is here}} |
| struct D; |
| template <typename T> requires C1<T> // expected-error{{type constraint differs in template redeclaration}} |
| struct D; |
| |
| } // end namespace diag |
| |
| namespace nodiag { |
| |
| struct AA { |
| template <typename T> requires (someFunc(T())) |
| struct A; |
| }; |
| |
| template <typename U> requires (someFunc(U())) |
| 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 {{previous template declaration is here}} |
| struct A; |
| |
| template <template <unsigned> class TT> requires TT<N>::happy // expected-note {{previous template declaration is here}} |
| struct B; |
| |
| struct AF; |
| }; |
| |
| template <unsigned N> |
| template <template <unsigned> class TT> struct TA<N>::A { }; // expected-error{{requires clause differs in template redeclaration}} |
| |
| |
| template <unsigned N> |
| template <template <unsigned> class TT> requires TT<N + 1>::happy struct TA<N>::B { }; // expected-error{{requires clause differs in template redeclaration}} |
| |
| template <unsigned N> |
| struct TA<N>::AF { |
| // we do not expect a diagnostic here because the template parameter list is dependent. |
| template <template <unsigned> class TT> requires TT<N + 0>::happy |
| friend struct TA::A; |
| }; |
| |
| } // end namespace diag |