1 // RUN: %clang_cc1 -fsyntax-only -verify %s
3 // This is a test for an egregious hack in Clang that works around
4 // issues with GCC's evolution. libstdc++ 4.2.x uses __is_pod as an
5 // identifier (to declare a struct template like the one below), while
6 // GCC 4.3 and newer make __is_pod a keyword. Clang treats __is_pod as
7 // a keyword *unless* it is introduced following the struct keyword.
10 struct __is_pod
{ // expected-warning {{keyword '__is_pod' will be made available as an identifier}}
16 // Ditto for __is_same.
18 struct __is_same
{ // expected-warning {{keyword '__is_same' will be made available as an identifier}}
23 // Another, similar egregious hack for __is_signed, which is a type
24 // trait in Embarcadero's compiler but is used as an identifier in
26 struct test_is_signed
{
27 static const bool __is_signed
= true; // expected-warning {{keyword '__is_signed' will be made available as an identifier}}
30 bool check_signed
= test_is_signed::__is_signed
;
32 template<bool B
> struct must_be_true
{};
33 template<> struct must_be_true
<false>;
36 bool b
= __is_pod(int);
37 must_be_true
<__is_pod(int)> mbt
;
40 // expected-warning@+1 {{declaration does not declare anything}}
41 struct // expected-error {{declaration of anonymous struct must be a definition}}
46 #if !__has_feature(is_pod)
47 # error __is_pod should still be available.