| // PR c++/100102 | |
| // { dg-do compile { target c++11 } } | |
| template<int> struct ratio; | |
| template<class T> struct duration { | |
| static constexpr int _S_gcd(); | |
| template<class> using __is_harmonic = ratio<(duration::_S_gcd)()>; | |
| using type = __is_harmonic<int>; | |
| }; |