| |
| // Copyright (C) 2009-2012 Lorenzo Caminiti |
| // Distributed under the Boost Software License, Version 1.0 |
| // (see accompanying file LICENSE_1_0.txt or a copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // Home at http://www.boost.org/libs/functional/overloaded_function |
| |
| #ifndef IDENTITY_HPP_ |
| #define IDENTITY_HPP_ |
| |
| //[identity_typeof |
| #include <boost/typeof/std/string.hpp> // No need to register `boost::function`. |
| //] |
| #include <boost/function.hpp> |
| #include <string> |
| |
| //[identity_decls |
| const std::string& identity_s(const std::string& x) // Function (as pointer). |
| { return x; } |
| |
| int identity_i_impl(int x) { return x; } |
| int (&identity_i)(int) = identity_i_impl; // Function reference. |
| |
| double identity_d_impl(double x) { return x; } |
| boost::function<double (double)> identity_d = identity_d_impl; // Functor. |
| //] |
| |
| #endif // #include guard |
| |
