| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | struct IntHolder { |
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| 4 | IntHolder(int); |
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| 5 | }; |
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| 6 | |
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| 7 | template<typename T, typename U> |
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| 8 | struct X { |
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| 9 | void f() { |
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| 10 | T t; |
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| 11 | } |
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| 12 | |
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| 13 | void g() { } |
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| 14 | |
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| 15 | struct Inner { |
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| 16 | T value; |
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| 17 | }; |
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| 18 | |
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| 19 | static T value; |
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| 20 | }; |
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| 21 | |
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| 22 | template<typename T, typename U> |
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| 23 | T X<T, U>::value; |
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| 24 | |
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| 25 | // Explicitly specialize the members of X<IntHolder, long> to not cause |
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| 26 | // problems with instantiation, but only provide declarations (not definitions). |
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| 27 | template<> |
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| 28 | void X<IntHolder, long>::f(); |
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| 29 | |
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| 30 | template<> |
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| 31 | struct X<IntHolder, long>::Inner; // expected-note{{forward declaration}} |
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| 32 | |
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| 33 | template<> |
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| 34 | IntHolder X<IntHolder, long>::value; |
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| 35 | |
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| 36 | IntHolder &test_X_IntHolderInt(X<IntHolder, long> xih) { |
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| 37 | xih.g(); // okay |
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| 38 | xih.f(); // okay, uses specialization |
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| 39 | |
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| 40 | X<IntHolder, long>::Inner inner; // expected-error {{incomplete}} |
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| 41 | |
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| 42 | return X<IntHolder, long>::value; // okay, uses specialization |
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| 43 | } |
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| 44 | |
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| 45 | |
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| 46 | template<class T> struct A { |
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| 47 | void f(T) { /* ... */ } |
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| 48 | }; |
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| 49 | |
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| 50 | template<> struct A<int> { |
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| 51 | void f(int); |
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| 52 | }; |
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| 53 | |
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| 54 | void h() { |
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| 55 | A<int> a; |
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| 56 | a.f(16); // A<int>::f must be defined somewhere |
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| 57 | } |
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| 58 | |
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| 59 | // explicit specialization syntax not used for a member of |
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| 60 | // explicitly specialized class template specialization |
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| 61 | void A<int>::f(int) { /* ... */ } |
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| 62 | |
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