| 1 | // RUN: %clang_cc1 -std=c++17 -verify %s |
| 2 | // expected-no-diagnostics |
| 3 | template<bool> struct DominatorTreeBase { |
| 4 | static constexpr bool IsPostDominator = true; |
| 5 | }; |
| 6 | extern template class DominatorTreeBase<false>; |
| 7 | constexpr bool k = DominatorTreeBase<false>::IsPostDominator; |
| 8 | |
| 9 | namespace CompleteType { |
| 10 | template<unsigned N> constexpr int f(const bool (&)[N]) { return 0; } |
| 11 | |
| 12 | template<bool ...V> struct X { |
| 13 | static constexpr bool arr[] = {V...}; |
| 14 | static constexpr int value = f(arr); |
| 15 | }; |
| 16 | |
| 17 | constexpr int n = X<true>::value; |
| 18 | } |
| 19 | |
| 20 | template <typename T> struct A { |
| 21 | static const int n; |
| 22 | static const int m; |
| 23 | constexpr int f() { return n; } |
| 24 | constexpr int g() { return n; } |
| 25 | }; |
| 26 | template <typename T> constexpr int A<T>::n = sizeof(A) + sizeof(T); |
| 27 | template <typename T> inline constexpr int A<T>::m = sizeof(A) + sizeof(T); |
| 28 | static_assert(A<int>().f() == 5); |
| 29 | static_assert(A<int>().g() == 5); |
| 30 | |