1 /*============================================================================= 2 Copyright (c) 2001-2006 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/view/transform_view/transform_view.hpp> 11 #include <boost/fusion/algorithm/transformation/detail/replace_if.hpp> 12 #include <boost/utility/enable_if.hpp> 13 #include <boost/type_traits/is_same.hpp> 14 15 namespace boost { namespace fusion 16 { 17 namespace result_of 18 { 19 template <typename Sequence, typename F, typename T> 20 struct replace_if 21 { 22 typedef transform_view<Sequence, detail::replacer_if<F, T> > type; 23 }; 24 } 25 26 template <typename Sequence, typename F, typename T> 27 inline typename result_of::replace_if<Sequence const, F, T>::type replace_if(Sequence const & seq,F pred,T const & new_value)28 replace_if(Sequence const& seq, F pred, T const& new_value) 29 { 30 typedef typename result_of::replace_if<Sequence const, F, T>::type result; 31 detail::replacer_if<F, T> f(pred, new_value); 32 return result(seq, f); 33 } 34 }} 35 36 #endif 37 38