// RUN: %clang_cc1 -fsyntax-only %s // This is a test for an egregious hack in Clang that works around // issues with GCC's evolution. libstdc++ 4.2.x uses __is_pod as an // identifier (to declare a struct template like the one below), while // GCC 4.3 and newer make __is_pod a keyword. Clang treats __is_pod as // a keyword *unless* it is introduced following the struct keyword. template<typename T> struct __is_pod { }; __is_pod<int> ipi; // Ditto for __is_same. template<typename T> struct __is_same { }; __is_same<int> isi; // Another, similar egregious hack for __is_signed, which is a type // trait in Embarcadero's compiler but is used as an identifier in // libstdc++. struct test_is_signed { static const bool __is_signed = true; }; bool check_signed = test_is_signed::__is_signed; #if __has_feature(is_pod) # error __is_pod won't work now anyway #endif