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authoryang.zhang <y0169.zhang@samsung.com>2016-05-18 11:25:47 +0800
committeryang.zhang <y0169.zhang@samsung.com>2016-05-18 11:27:16 +0800
commit41c06420b9ff028fd452cec19ac1412be665673f (patch)
treeece29e014e212b56654888fa3f95f50625164919 /cpp-btree/btree_set.h
parenta96d62621beefe4aa20b696744be6325bc536fb6 (diff)
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Change-Id: I8423a2e4bed8a15b862b6b1ab6f6371c92e78b3f
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diff --git a/cpp-btree/btree_set.h b/cpp-btree/btree_set.h
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-// Copyright 2013 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// A btree_set<> implements the STL unique sorted associative container
-// interface (a.k.a set<>) using a btree. A btree_multiset<> implements the STL
-// multiple sorted associative container interface (a.k.a multiset<>) using a
-// btree. See btree.h for details of the btree implementation and caveats.
-
-#ifndef UTIL_BTREE_BTREE_SET_H__
-#define UTIL_BTREE_BTREE_SET_H__
-
-#include <functional>
-#include <memory>
-#include <string>
-
-#include "btree.h"
-#include "btree_container.h"
-
-namespace btree {
-
-// The btree_set class is needed mainly for its constructors.
-template <typename Key,
- typename Compare = std::less<Key>,
- typename Alloc = std::allocator<Key>,
- int TargetNodeSize = 256>
-class btree_set : public btree_unique_container<
- btree<btree_set_params<Key, Compare, Alloc, TargetNodeSize> > > {
-
- typedef btree_set<Key, Compare, Alloc, TargetNodeSize> self_type;
- typedef btree_set_params<Key, Compare, Alloc, TargetNodeSize> params_type;
- typedef btree<params_type> btree_type;
- typedef btree_unique_container<btree_type> super_type;
-
- public:
- typedef typename btree_type::key_compare key_compare;
- typedef typename btree_type::allocator_type allocator_type;
-
- public:
- // Default constructor.
- btree_set(const key_compare &comp = key_compare(),
- const allocator_type &alloc = allocator_type())
- : super_type(comp, alloc) {
- }
-
- // Copy constructor.
- btree_set(const self_type &x)
- : super_type(x) {
- }
-
- // Range constructor.
- template <class InputIterator>
- btree_set(InputIterator b, InputIterator e,
- const key_compare &comp = key_compare(),
- const allocator_type &alloc = allocator_type())
- : super_type(b, e, comp, alloc) {
- }
-};
-
-template <typename K, typename C, typename A, int N>
-inline void swap(btree_set<K, C, A, N> &x, btree_set<K, C, A, N> &y) {
- x.swap(y);
-}
-
-// The btree_multiset class is needed mainly for its constructors.
-template <typename Key,
- typename Compare = std::less<Key>,
- typename Alloc = std::allocator<Key>,
- int TargetNodeSize = 256>
-class btree_multiset : public btree_multi_container<
- btree<btree_set_params<Key, Compare, Alloc, TargetNodeSize> > > {
-
- typedef btree_multiset<Key, Compare, Alloc, TargetNodeSize> self_type;
- typedef btree_set_params<Key, Compare, Alloc, TargetNodeSize> params_type;
- typedef btree<params_type> btree_type;
- typedef btree_multi_container<btree_type> super_type;
-
- public:
- typedef typename btree_type::key_compare key_compare;
- typedef typename btree_type::allocator_type allocator_type;
-
- public:
- // Default constructor.
- btree_multiset(const key_compare &comp = key_compare(),
- const allocator_type &alloc = allocator_type())
- : super_type(comp, alloc) {
- }
-
- // Copy constructor.
- btree_multiset(const self_type &x)
- : super_type(x) {
- }
-
- // Range constructor.
- template <class InputIterator>
- btree_multiset(InputIterator b, InputIterator e,
- const key_compare &comp = key_compare(),
- const allocator_type &alloc = allocator_type())
- : super_type(b, e, comp, alloc) {
- }
-};
-
-template <typename K, typename C, typename A, int N>
-inline void swap(btree_multiset<K, C, A, N> &x,
- btree_multiset<K, C, A, N> &y) {
- x.swap(y);
-}
-
-} // namespace btree
-
-#endif // UTIL_BTREE_BTREE_SET_H__