3 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 3, or (at your option) any later
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
29 // notice appears in all copies, and that both that copyright notice
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32 // representation about the suitability of this software for any
33 // purpose. It is provided "as is" without express or implied
37 * @file pat_trie_/synth_access_traits.hpp
38 * Contains an implementation class for a patricia tree.
41 #ifndef PB_DS_SYNTH_E_ACCESS_TRAITS_HPP
42 #define PB_DS_SYNTH_E_ACCESS_TRAITS_HPP
44 #include <ext/pb_ds/detail/type_utils.hpp>
51 #define PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC \
52 template<typename Type_Traits, bool Set, typename _ATraits>
54 #define PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC \
55 synth_access_traits<Type_Traits, Set, _ATraits>
57 /// Synthetic element access traits.
58 template<typename Type_Traits
, bool Set
, typename _ATraits
>
59 struct synth_access_traits
: public _ATraits
61 typedef _ATraits base_type
;
62 typedef typename
base_type::const_iterator const_iterator
;
63 typedef Type_Traits type_traits
;
64 typedef typename
type_traits::const_reference const_reference
;
65 typedef typename
type_traits::key_const_reference key_const_reference
;
67 synth_access_traits();
69 synth_access_traits(const base_type
&);
72 equal_prefixes(const_iterator
, const_iterator
, const_iterator
,
73 const_iterator
, bool compare_after
= true) const;
76 equal_keys(key_const_reference
, key_const_reference
) const;
79 cmp_prefixes(const_iterator
, const_iterator
, const_iterator
,
80 const_iterator
, bool compare_after
= false) const;
83 cmp_keys(key_const_reference
, key_const_reference
) const;
85 inline static key_const_reference
86 extract_key(const_reference
);
90 operator()(key_const_reference
, key_const_reference
);
94 inline static key_const_reference
95 extract_key(const_reference
, true_type
);
97 inline static key_const_reference
98 extract_key(const_reference
, false_type
);
100 static integral_constant
<int, Set
> s_set_ind
;
103 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
104 integral_constant
<int,Set
>
105 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::s_set_ind
;
107 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
108 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
109 synth_access_traits()
112 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
113 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
114 synth_access_traits(const _ATraits
& r_traits
)
118 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
120 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
121 equal_prefixes(const_iterator b_l
, const_iterator e_l
, const_iterator b_r
,
122 const_iterator e_r
, bool compare_after
/*= false */) const
128 if (base_type::e_pos(*b_l
) != base_type::e_pos(*b_r
))
133 return (!compare_after
|| b_r
== e_r
);
136 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
138 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
139 equal_keys(key_const_reference r_lhs_key
,
140 key_const_reference r_rhs_key
) const
142 return equal_prefixes(base_type::begin(r_lhs_key
),
143 base_type::end(r_lhs_key
),
144 base_type::begin(r_rhs_key
),
145 base_type::end(r_rhs_key
),
149 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
151 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
152 cmp_prefixes(const_iterator b_l
, const_iterator e_l
, const_iterator b_r
,
153 const_iterator e_r
, bool compare_after
/* = false*/) const
160 const typename
base_type::size_type l_pos
= base_type::e_pos(*b_l
);
161 const typename
base_type::size_type r_pos
= base_type::e_pos(*b_r
);
163 return l_pos
< r_pos
;
173 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
175 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
176 cmp_keys(key_const_reference r_lhs_key
,
177 key_const_reference r_rhs_key
) const
179 return cmp_prefixes(base_type::begin(r_lhs_key
),
180 base_type::end(r_lhs_key
),
181 base_type::begin(r_rhs_key
),
182 base_type::end(r_rhs_key
),
186 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
187 inline typename
PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::key_const_reference
188 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
189 extract_key(const_reference r_val
)
190 { return extract_key(r_val
, s_set_ind
); }
192 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
193 inline typename
PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::key_const_reference
194 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
195 extract_key(const_reference r_val
, true_type
)
198 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
199 inline typename
PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::key_const_reference
200 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
201 extract_key(const_reference r_val
, false_type
)
202 { return r_val
.first
; }
204 #ifdef _GLIBCXX_DEBUG
205 PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
207 PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::
208 operator()(key_const_reference r_lhs
, key_const_reference r_rhs
)
209 { return cmp_keys(r_lhs
, r_rhs
); }
212 #undef PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC
213 #undef PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC
215 } // namespace detail
216 } // namespace __gnu_pbds