| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // The test requires access control SFINAE. |
| |
| // <unordered_map> |
| |
| // Check that std::unordered_map fails to instantiate if the comparison predicate is |
| // not copy-constructible. This is LWG issue 2436 |
| |
| #include <unordered_map> |
| |
| template <class T> |
| struct Comp { |
| bool operator () (const T& lhs, const T& rhs) const { return lhs == rhs; } |
| |
| Comp () {} |
| private: |
| Comp (const Comp &); // declared but not defined |
| }; |
| |
| |
| int main() { |
| std::unordered_map<int, int, std::hash<int>, Comp<int> > m; |
| } |
