1// RUN: %clang_cc1 -fsyntax-only %s
2
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.
8
9template<typename T>
10struct __is_pod {
11};
12
13__is_pod<int> ipi;
14
15// Ditto for __is_same.
16template<typename T>
17struct __is_same {
18};
19
20__is_same<int> isi;
21
22// Another, similar egregious hack for __is_signed, which is a type
23// trait in Embarcadero's compiler but is used as an identifier in
24// libstdc++.
25struct test_is_signed {
26  static const bool __is_signed = true;
27};
28
29bool check_signed = test_is_signed::__is_signed;
30
31#if __has_feature(is_pod)
32#  error __is_pod won't work now anyway
33#endif
34