1//////////////////////////////////////////////////////////////////////////////
2//
3// (C) Copyright Ion Gaztanaga 2015-2016.
4// Distributed under the Boost Software License, Version 1.0.
5// (See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// See http://www.boost.org/libs/move for documentation.
9//
10//////////////////////////////////////////////////////////////////////////////
11#ifndef BOOST_MOVE_ALGO_PREDICATE_HPP
12#define BOOST_MOVE_ALGO_PREDICATE_HPP
13
14#include <boost/move/algo/move.hpp>
15#include <boost/move/adl_move_swap.hpp>
16#include <boost/move/algo/detail/basic_op.hpp>
17#include <boost/move/detail/iterator_traits.hpp>
18#include <boost/move/detail/destruct_n.hpp>
19#include <boost/assert.hpp>
20
21namespace boost {
22namespace movelib {
23
24template<class Comp>
25struct antistable
26{
27 explicit antistable(Comp &comp)
28 : m_comp(comp)
29 {}
30
31 template<class U, class V>
32 bool operator()(const U &u, const V & v)
33 { return !m_comp(v, u); }
34
35 private:
36 antistable & operator=(const antistable &);
37 Comp &m_comp;
38};
39
40template <class Comp>
41class negate
42{
43 public:
44 negate()
45 {}
46
47 explicit negate(Comp comp)
48 : m_comp(comp)
49 {}
50
51 template <class T1, class T2>
52 bool operator()(const T1& l, const T2& r)
53 {
54 return !m_comp(l, r);
55 }
56
57 private:
58 Comp m_comp;
59};
60
61
62template <class Comp>
63class inverse
64{
65 public:
66 inverse()
67 {}
68
69 explicit inverse(Comp comp)
70 : m_comp(comp)
71 {}
72
73 template <class T1, class T2>
74 bool operator()(const T1& l, const T2& r)
75 {
76 return m_comp(r, l);
77 }
78
79 private:
80 Comp m_comp;
81};
82
83} //namespace movelib {
84} //namespace boost {
85
86#endif //#define BOOST_MOVE_ALGO_PREDICATE_HPP
87