1 /*=============================================================================
2     Copyright (c) 2011 Eric Niebler
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(BOOST_FUSION_FIND_IF_FWD_HPP_INCLUDED)
8 #define BOOST_FUSION_FIND_IF_FWD_HPP_INCLUDED
9 
10 #include <boost/fusion/support/config.hpp>
11 #include <boost/utility/enable_if.hpp>
12 #include <boost/type_traits/is_const.hpp>
13 
14 // Forward declaration of find_if algorithm
15 namespace boost { namespace fusion
16 {
17     namespace result_of
18     {
19         template <typename Sequence, typename Pred>
20         struct find_if;
21     }
22 
23     template <typename Pred, typename Sequence>
24     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
25     inline typename
26         lazy_disable_if<
27             is_const<Sequence>
28           , result_of::find_if<Sequence, Pred>
29         >::type
30     find_if(Sequence& seq);
31 
32     template <typename Pred, typename Sequence>
33     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
34     inline typename result_of::find_if<Sequence const, Pred>::type const
35     find_if(Sequence const& seq);
36 }}
37 
38 #endif
39