| #ifndef BOOST_SMART_PTR_OWNER_LESS_HPP_INCLUDED |
| #define BOOST_SMART_PTR_OWNER_LESS_HPP_INCLUDED |
| |
| // |
| // owner_less.hpp |
| // |
| // Copyright (c) 2008 Frank Mori Hess |
| // Copyright (c) 2016 Peter Dimov |
| // |
| // 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) |
| // |
| // See http://www.boost.org/libs/smart_ptr/ for documentation. |
| // |
| |
| namespace boost |
| { |
| |
| template<class T = void> struct owner_less |
| { |
| typedef bool result_type; |
| typedef T first_argument_type; |
| typedef T second_argument_type; |
| |
| template<class U, class V> bool operator()( U const & u, V const & v ) const |
| { |
| return u.owner_before( v ); |
| } |
| }; |
| |
| } // namespace boost |
| |
| #endif // #ifndef BOOST_SMART_PTR_OWNER_LESS_HPP_INCLUDED |