| |
| // Copyright 2006-2009 Daniel James. |
| // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| #if !defined(BOOST_UNORDERED_TEST_HELPERS_HEADER) |
| #define BOOST_UNORDERED_TEST_HELPERS_HEADER |
| |
| namespace test |
| { |
| template <class Container> |
| struct get_key_impl |
| { |
| typedef BOOST_DEDUCED_TYPENAME Container::key_type key_type; |
| |
| static key_type const& get_key(key_type const& x) |
| { |
| return x; |
| } |
| |
| template <class T> |
| static key_type const& get_key( |
| std::pair<key_type, T> const& x, char = 0) |
| { |
| return x.first; |
| } |
| |
| template <class T> |
| static key_type const& get_key(std::pair<key_type const, T> const& x, |
| unsigned char = 0) |
| { |
| return x.first; |
| } |
| }; |
| |
| template <class Container, class T> |
| inline BOOST_DEDUCED_TYPENAME Container::key_type const& get_key(T const& x) |
| { |
| return get_key_impl<Container>::get_key(x); |
| } |
| } |
| |
| #endif |