Chris@16: // Boost nil_generator.hpp header file  ----------------------------------------------//
Chris@16: 
Chris@16: // Copyright 2010 Andy Tompkins.
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_UUID_NIL_GENERATOR_HPP
Chris@16: #define BOOST_UUID_NIL_GENERATOR_HPP
Chris@16: 
Chris@16: #include <boost/uuid/uuid.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace uuids {
Chris@16: 
Chris@16: // generate a nil uuid
Chris@16: struct nil_generator {
Chris@16:     typedef uuid result_type;
Chris@16:     
Chris@16:     uuid operator()() const {
Chris@16:         // initialize to all zeros
Chris@16:         uuid u = {{0}};
Chris@16:         return u;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: inline uuid nil_uuid() {
Chris@16:     return nil_generator()();
Chris@16: }
Chris@16: 
Chris@16: }} // namespace boost::uuids
Chris@16: 
Chris@16: #endif // BOOST_UUID_NIL_GENERATOR_HPP
Chris@16: