Line data    Source code

       1             : /*
       2             :   An output iterator which simply discards output.
       3             : */
       4             : // Copyright Frank Mori Hess 2008.
       5             : // Distributed under the Boost Software License, Version
       6             : // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
       7             : // http://www.boost.org/LICENSE_1_0.txt)
       8             : 
       9             : // See http://www.boost.org/libs/signals2 for library home page.
      10             : 
      11             : #ifndef BOOST_SIGNALS2_NULL_OUTPUT_ITERATOR_HPP
      12             : #define BOOST_SIGNALS2_NULL_OUTPUT_ITERATOR_HPP
      13             : 
      14             : #include <boost/iterator/function_output_iterator.hpp>
      15             : 
      16             : namespace boost
      17             : {
      18             :   namespace signals2
      19             :   {
      20             :     namespace detail
      21             :     {
      22             :       class does_nothing
      23             :       {
      24             :       public:
      25             :         template<typename T>
      26           0 :           void operator()(const T&) const
      27           0 :           {}
      28             :       };
      29             :       typedef boost::function_output_iterator<does_nothing> null_output_iterator;
      30             :     } // namespace detail
      31             :   } // namespace signals2
      32             : } // namespace boost
      33             : 
      34             : #endif  // BOOST_SIGNALS2_NULL_OUTPUT_ITERATOR_HPP