| // RUN: %clang_cc1 -fsyntax-only -verify %s |
| |
| template<typename MetaFun, typename T> |
| struct bind_metafun { |
| typedef typename MetaFun::template apply<T> type; |
| }; |
| |
| struct add_pointer { |
| template<typename T> |
| struct apply { |
| typedef T* type; |
| }; |
| }; |
| |
| int i; |
| // FIXME: if we make the declarator below a pointer (e.g., with *ip), |
| // the error message isn't so good because we don't get the handy |
| // 'aka' telling us that we're dealing with an int**. Should we fix |
| // getDesugaredType to dig through pointers and such? |
| bind_metafun<add_pointer, int>::type::type ip = &i; |
| 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 *'}} |
| |
| |
| template<typename T> |
| struct extract_type_type { |
| typedef typename T::type::type t; |
| }; |
| |
| double d; |
| extract_type_type<bind_metafun<add_pointer, double> >::t dp = &d; |