| 1 | // RUN: %clang_cc1 -std=c++14 -fconcepts-ts -x c++ -verify %s |
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| 2 | |
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| 3 | namespace nodiag { |
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| 4 | |
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| 5 | template <typename T> requires bool(T()) |
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| 6 | struct A; |
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| 7 | template <typename U> requires bool(U()) |
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| 8 | struct A; |
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| 9 | |
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| 10 | } // end namespace nodiag |
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| 11 | |
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| 12 | namespace diag { |
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| 13 | |
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| 14 | template <typename T> requires true // expected-note{{previous template declaration is here}} |
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| 15 | struct A; |
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| 16 | template <typename T> struct A; // expected-error{{associated constraints differ in template redeclaration}} |
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| 17 | |
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| 18 | template <typename T> struct B; // expected-note{{previous template declaration is here}} |
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| 19 | template <typename T> requires true // expected-error{{associated constraints differ in template redeclaration}} |
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| 20 | struct B; |
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| 21 | |
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| 22 | template <typename T> requires true // expected-note{{previous template declaration is here}} |
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| 23 | struct C; |
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| 24 | template <typename T> requires !0 // expected-error{{associated constraints differ in template redeclaration}} |
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| 25 | struct C; |
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| 26 | |
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| 27 | } // end namespace diag |
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| 28 | |
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| 29 | namespace nodiag { |
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| 30 | |
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| 31 | struct AA { |
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| 32 | template <typename T> requires someFunc(T()) |
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| 33 | struct A; |
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| 34 | }; |
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| 35 | |
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| 36 | template <typename T> requires someFunc(T()) |
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| 37 | struct AA::A { }; |
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| 38 | |
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| 39 | struct AAF { |
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| 40 | template <typename T> requires someFunc(T()) |
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| 41 | friend struct AA::A; |
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| 42 | }; |
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| 43 | |
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| 44 | } // end namespace nodiag |
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| 45 | |
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| 46 | namespace diag { |
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| 47 | |
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| 48 | template <unsigned N> |
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| 49 | struct TA { |
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| 50 | template <template <unsigned> class TT> requires TT<N>::happy // expected-note 2{{previous template declaration is here}} |
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| 51 | struct A; |
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| 52 | |
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| 53 | struct AF; |
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| 54 | }; |
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| 55 | |
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| 56 | template <unsigned N> |
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| 57 | template <template <unsigned> class TT> struct TA<N>::A { }; // expected-error{{associated constraints differ in template redeclaration}} |
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| 58 | |
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| 59 | template <unsigned N> |
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| 60 | struct TA<N>::AF { |
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| 61 | template <template <unsigned> class TT> requires TT<N + 0>::happy // expected-error{{associated constraints differ in template redeclaration}} |
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| 62 | friend struct TA::A; |
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| 63 | }; |
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| 64 | |
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| 65 | } // end namespace diag |
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| 66 | |
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