| // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s |
| |
| template<typename T, typename U> |
| struct is_same { |
| static const bool value = false; |
| }; |
| |
| template<typename T> |
| struct is_same<T, T> { |
| static const bool value = true; |
| }; |
| #define JOIN2(X,Y) X##Y |
| #define JOIN(X,Y) JOIN2(X,Y) |
| #define CHECK_EQUAL_TYPES(T1, T2) \ |
| int JOIN(array,__LINE__)[is_same<T1, T2>::value? 1 : -1] |
| |
| int i; |
| typedef int& LRI; |
| typedef int&& RRI; |
| |
| typedef LRI& r1; CHECK_EQUAL_TYPES(r1, int&); |
| typedef const LRI& r2; CHECK_EQUAL_TYPES(r2, int&); // expected-warning {{'const' qualifier on reference type 'LRI' (aka 'int &') has no effect}} |
| typedef const LRI&& r3; CHECK_EQUAL_TYPES(r3, int&); // expected-warning {{'const' qualifier on reference type 'LRI' (aka 'int &') has no effect}} |
| |
| typedef RRI& r4; CHECK_EQUAL_TYPES(r4, int&); |
| typedef RRI&& r5; CHECK_EQUAL_TYPES(r5, int&&); |
