1/*=============================================================================
2 Copyright (c) 1999-2003 Jaakko Jarvi
3 Copyright (c) 2001-2011 Joel de Guzman
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7==============================================================================*/
8#if !defined(FUSION_EQUAL_TO_05052005_1142)
9#define FUSION_EQUAL_TO_05052005_1142
10
11#include <boost/fusion/support/config.hpp>
12#include <boost/mpl/bool.hpp>
13#include <boost/fusion/iterator/deref.hpp>
14#include <boost/fusion/iterator/next.hpp>
15#include <boost/fusion/iterator/equal_to.hpp>
16#include <boost/fusion/support/as_const.hpp>
17
18namespace boost { namespace fusion { namespace detail
19{
20 template <typename Seq1, typename Seq2, bool same_size>
21 struct sequence_equal_to
22 {
23 typedef typename result_of::end<Seq1>::type end1_type;
24 typedef typename result_of::end<Seq2>::type end2_type;
25
26 template <typename I1, typename I2>
27 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
28 static bool
29 call(I1 const&, I2 const&, mpl::true_)
30 {
31 return true;
32 }
33
34 template <typename I1, typename I2>
35 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
36 static bool
37 call(I1 const& a, I2 const& b, mpl::false_)
38 {
39 return extension::as_const(*a) == extension::as_const(*b)
40 && call(fusion::next(a), fusion::next(b));
41 }
42
43 template <typename I1, typename I2>
44 BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
45 static bool
46 call(I1 const& a, I2 const& b)
47 {
48 typename result_of::equal_to<I1, end1_type>::type eq;
49 return call(a, b, eq);
50 }
51 };
52
53 template <typename Seq1, typename Seq2>
54 struct sequence_equal_to<Seq1, Seq2, false>
55 {
56 template <typename I1, typename I2>
57 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
58 static bool
59 call(I1 const& /*a*/, I2 const& /*b*/)
60 {
61 return false;
62 }
63 };
64}}}
65
66#endif
67

source code of include/boost/fusion/sequence/comparison/detail/equal_to.hpp