| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03 |
| |
| // Test that the header `poisoned_hash_helper.hpp` doesn't include any |
| // headers that provide hash<T> specializations. This is required so that the |
| // 'test_library_hash_specializations_available()' function returns false |
| // by default, unless a STL header providing hash has already been included. |
| |
| #include "poisoned_hash_helper.hpp" |
| |
| template <class T, size_t = sizeof(T)> |
| constexpr bool is_complete_imp(int) { return true; } |
| template <class> constexpr bool is_complete_imp(long) { return false; } |
| template <class T> constexpr bool is_complete() { return is_complete_imp<T>(0); } |
| |
| template <class T> struct has_complete_hash { |
| enum { value = is_complete<std::hash<T> >() }; |
| }; |
| |
| int main() { |
| static_assert(LibraryHashTypes::assertTrait<has_complete_hash, false>(), ""); |
| } |
