| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | template<typename MetaFun, typename T> |
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| 4 | struct bind_metafun { |
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| 5 | typedef typename MetaFun::template apply<T> type; |
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| 6 | }; |
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| 7 | |
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| 8 | struct add_pointer { |
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| 9 | template<typename T> |
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| 10 | struct apply { |
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| 11 | typedef T* type; |
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| 12 | }; |
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| 13 | }; |
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| 14 | |
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| 15 | int i; |
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| 16 | // FIXME: if we make the declarator below a pointer (e.g., with *ip), |
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| 17 | // the error message isn't so good because we don't get the handy |
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| 18 | // 'aka' telling us that we're dealing with an int**. Should we fix |
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| 19 | // getDesugaredType to dig through pointers and such? |
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| 20 | bind_metafun<add_pointer, int>::type::type ip = &i; |
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| 21 | bind_metafun<add_pointer, float>::type::type fp = &i; // expected-error{{cannot initialize a variable of type 'bind_metafun<add_pointer, float>::type::type' (aka 'float *') with an rvalue of type 'int *'}} |
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| 22 | |
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| 23 | |
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| 24 | template<typename T> |
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| 25 | struct extract_type_type { |
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| 26 | typedef typename T::type::type t; |
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| 27 | }; |
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| 28 | |
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| 29 | double d; |
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| 30 | extract_type_type<bind_metafun<add_pointer, double> >::t dp = &d; |
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| 31 | |
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