31 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 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 handy18// 'aka' telling us that we're dealing with an int**. Should we fix19// 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