| // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s |
| // expected-no-diagnostics |
| |
| // If type deduction cannot be done for any P/A pair, or if for any |
| // pair the deduction leads to more than one possible set of deduced |
| // values, or if different pairs yield different deduced values, or if |
| // any template argument remains neither deduced nor explicitly |
| // specified, template argument deduction fails. |
| |
| template<typename ...> struct tuple; |
| |
| template<typename T, typename U> |
| struct same_tuple { |
| static const bool value = false; |
| }; |
| |
| template<typename ...Types1> |
| struct same_tuple<tuple<Types1...>, tuple<Types1...> > { |
| static const bool value = true; |
| }; |
| |
| int same_tuple_check1[same_tuple<tuple<int, float>, tuple<int, double>>::value? -1 : 1]; |
| int same_tuple_check2[same_tuple<tuple<float, double>, tuple<float, double>>::value? 1 : -1]; |
| |
