p2.cpp revision abea951c34876a5374d0e3678c7989b225c5c895 
1// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s -std=c++0x
2
3struct S {
4  virtual ~S();
5
6  void g() throw (auto(*)()->int);
7
8  // Note, this is not permitted: conversion-declarator cannot have a trailing return type.
9  // FIXME: don't issue the second diagnostic for this.
10  operator auto(*)()->int(); // expected-error{{'auto' not allowed here}} expected-error {{C++ requires a type specifier}}
11};
12
13typedef auto Fun(int a) -> decltype(a + a);
14typedef auto (*PFun)(int a) -> decltype(a + a);
15
16void g(auto (*f)() -> int) {
17  try { }
18  catch (auto (&f)() -> int) { }
19  catch (auto (*const f[10])() -> int) { }
20}
21
22namespace std {
23  class type_info;
24}
25
26template<typename T> struct U {};
27
28void j() {
29  (void)typeid(auto(*)()->void);
30  (void)sizeof(auto(*)()->void);
31  (void)__alignof(auto(*)()->void);
32
33  U<auto(*)()->void> v;
34
35  int n;
36  (void)static_cast<auto(*)()->void>(&j);
37  auto p = reinterpret_cast<auto(*)()->int>(&j);
38  (void)const_cast<auto(**)()->int>(&p);
39  (void)(auto(*)()->void)(&j);
40}
41
42template <auto (*f)() -> void = &j> class C { };
43struct F : auto(*)()->int {}; // expected-error{{expected class name}}
44template<typename T = auto(*)()->int> struct G { };
45
46int g();
47auto (*h)() -> auto = &g; // expected-error{{'auto' not allowed here}}
48auto (*i)() = &g; // ok; auto deduced as int.
49auto (*k)() -> int = i; // ok; no deduction.
50