// RUN: %clang_cc1 -fsyntax-only -verify %s struct S { S(); // expected-note {{because type 'S' has a user-provided default constructor}} }; struct { // expected-error {{anonymous structs and classes must be class members}} }; struct E { struct { S x; // expected-error {{anonymous struct member 'x' has a non-trivial constructor}} }; static struct { }; }; template <class T> void foo(T); typedef struct { // expected-note {{use a tag name here to establish linkage prior to definition}} expected-note {{declared here}} void test() { foo(this); // expected-warning {{template argument uses unnamed type}} } } A; // expected-error {{unsupported: typedef changes linkage of anonymous type, but linkage was already computed}}