diff options
Diffstat (limited to 'clang/test/SemaTemplate/metafun-apply.cpp')
-rw-r--r-- | clang/test/SemaTemplate/metafun-apply.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/clang/test/SemaTemplate/metafun-apply.cpp b/clang/test/SemaTemplate/metafun-apply.cpp new file mode 100644 index 0000000..3a7408e --- /dev/null +++ b/clang/test/SemaTemplate/metafun-apply.cpp @@ -0,0 +1,40 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +struct add_pointer { + template<typename T> + struct apply { + typedef T* type; + }; +}; + +struct add_reference { + template<typename T> + struct apply { + typedef T& type; // expected-error{{cannot form a reference to 'void'}} + }; +}; + +struct bogus { + struct apply { + typedef int type; + }; +}; + +template<typename MetaFun, typename T> +struct apply1 { + typedef typename MetaFun::template apply<T>::type type; // expected-note{{in instantiation of template class 'add_reference::apply<void>' requested here}} \ + // expected-error{{'apply' following the 'template' keyword does not refer to a template}} +}; + +int i; +apply1<add_pointer, int>::type ip = &i; +apply1<add_reference, int>::type ir = i; +apply1<add_reference, float>::type fr = i; // expected-error{{non-const lvalue reference to type 'float' cannot bind to a value of unrelated type 'int'}} + +void test() { + apply1<add_reference, void>::type t; // expected-note{{in instantiation of template class 'apply1<add_reference, void>' requested here}} + + apply1<bogus, int>::type t2; // expected-note{{in instantiation of template class 'apply1<bogus, int>' requested here}} +} + + |