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