| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | template <int N> |
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| 4 | void f0(int (&array)[N]); // expected-note {{candidate template ignored: could not match 'int' against 'char'}} |
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| 5 | |
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| 6 | // Simple function template specialization (using overloading) |
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| 7 | template<> void f0(int (&array)[1]); |
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| 8 | |
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| 9 | void test_f0() { |
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| 10 | int iarr1[1]; |
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| 11 | f0(iarr1); |
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| 12 | } |
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| 13 | |
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| 14 | // Function template specialization where there are no matches |
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| 15 | template<> void f0(char (&array)[1]); // expected-error{{no function template matches}} |
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| 16 | template<> void f0<2>(int (&array)[2]) { } |
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| 17 | |
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| 18 | // Function template specialization that requires partial ordering |
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| 19 | template<typename T, int N> void f1(T (&array)[N]); // expected-note{{matches}} |
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| 20 | template<int N> void f1(int (&array)[N]); // expected-note{{matches}} |
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| 21 | |
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| 22 | template<> void f1(float (&array)[1]); |
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| 23 | template<> void f1(int (&array)[1]); |
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| 24 | |
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| 25 | // Function template specialization that results in an ambiguity |
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| 26 | template<typename T> void f1(T (&array)[17]); // expected-note{{matches}} |
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| 27 | template<> void f1(int (&array)[17]); // expected-error{{ambiguous}} |
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| 28 | |
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| 29 | // Resolving that ambiguity with explicitly-specified template arguments. |
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| 30 | template<int N> void f2(double (&array)[N]); |
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| 31 | template<typename T> void f2(T (&array)[42]); |
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| 32 | |
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| 33 | template<> void f2<double>(double (&array)[42]); |
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| 34 | template<> void f2<42>(double (&array)[42]); |
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| 35 | |
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| 36 | void f2<25>(double (&array)[25]); // expected-error{{specialization}} |
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| 37 | |
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| 38 | // PR5833 |
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| 39 | namespace PR5833 { |
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| 40 | template <typename T> bool f0(T &t1); |
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| 41 | template <> bool f0<float>(float &t1); |
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| 42 | } |
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| 43 | template <> bool PR5833::f0<float>(float &t1) {} |
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| 44 | |
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| 45 | // PR8295 |
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| 46 | namespace PR8295 { |
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| 47 | template <typename T> void f(T t) {} |
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| 48 | template <typename T> void f<T*>(T* t) {} // expected-error{{function template partial specialization is not allowed}} |
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| 49 | } |
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| 50 | |
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| 51 | class Foo { |
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| 52 | template<class T> |
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| 53 | static void Bar(const T& input); |
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| 54 | |
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| 55 | // Don't crash here. |
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| 56 | template<> |
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| 57 | static void Bar(const long& input) {} // expected-warning{{explicit specialization cannot have a storage class}} |
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| 58 | }; |
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| 59 | |
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