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