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_NOT_EQUAL_TO_05052005_0431)
9 #define FUSION_NOT_EQUAL_TO_05052005_0431
10 
11 #include <boost/fusion/support/config.hpp>
12 #include <boost/fusion/sequence/intrinsic/begin.hpp>
13 #include <boost/fusion/sequence/intrinsic/end.hpp>
14 #include <boost/fusion/sequence/intrinsic/size.hpp>
15 #include <boost/fusion/sequence/comparison/enable_comparison.hpp>
16 
17 #if defined(FUSION_DIRECT_OPERATOR_USAGE)
18 #include <boost/fusion/sequence/comparison/detail/not_equal_to.hpp>
19 #else
20 #include <boost/fusion/sequence/comparison/equal_to.hpp>
21 #endif
22 
23 namespace boost { namespace fusion
24 {
25     template <typename Seq1, typename Seq2>
26     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
27     inline bool
not_equal_to(Seq1 const & a,Seq2 const & b)28     not_equal_to(Seq1 const& a, Seq2 const& b)
29     {
30 #if defined(FUSION_DIRECT_OPERATOR_USAGE)
31         return result_of::size<Seq1>::value != result_of::size<Seq2>::value
32             || detail::sequence_not_equal_to<
33             Seq1 const, Seq2 const
34             , result_of::size<Seq1>::value == result_of::size<Seq2>::value>::
35             call(fusion::begin(a), fusion::begin(b));
36 #else
37         return !(a == b);
38 #endif
39     }
40 
41     namespace operators
42     {
43         template <typename Seq1, typename Seq2>
44         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
45         inline typename
46             boost::enable_if<
47                 traits::enable_equality<Seq1, Seq2>
48               , bool
49             >::type
operator !=(Seq1 const & a,Seq2 const & b)50         operator!=(Seq1 const& a, Seq2 const& b)
51         {
52             return fusion::not_equal_to(a, b);
53         }
54     }
55     using operators::operator!=;
56 }}
57 
58 #endif
59