ceph/src/boost/libs/fusion/include/boost/fusion/algorithm/transformation/replace_if.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 ==============================================================================*/
   7 #if !defined(FUSION_REPLACE_IF_08182005_0939)
   8 #define FUSION_REPLACE_IF_08182005_0939
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/fusion/view/transform_view/transform_view.hpp>
  12 #include <boost/fusion/algorithm/transformation/detail/replace_if.hpp>
  13 #include <boost/fusion/support/is_sequence.hpp>
  14 #include <boost/utility/enable_if.hpp>
  15 #include <boost/type_traits/is_same.hpp>
  16
  17 namespace boost { namespace fusion
  18 {
  19     namespace result_of
  20     {
  21         template <typename Sequence, typename F, typename T>
  22         struct replace_if
  23         {
  24             typedef transform_view<Sequence, detail::replacer_if<F, T> > type;
  25         };
  26     }
  27
  28     template <typename Sequence, typename F, typename T>
  29     BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  30     inline typename
  31         enable_if<
  32             traits::is_sequence<Sequence>
  33           , typename result_of::replace_if<Sequence const, F, T>::type
  34         >::type
  35     replace_if(Sequence const& seq, F pred, T const& new_value)
  36     {
  37         typedef typename result_of::replace_if<Sequence const, F, T>::type result;
  38         detail::replacer_if<F, T> f(pred, new_value);
  39         return result(seq, f);
  40     }
  41 }}
  42
  43 #endif
  44