From 5aa5d282eac56a21e74611c1cdbaa97bb5db2dca Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Tue, 8 Feb 2022 02:05:36 +0300 Subject: chore(3p/abseil_cpp): unvendor abseil_cpp we weren't actually using these sources anymore, okay? Change-Id: If701571d9716de308d3512e1eb22c35db0877a66 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248 Tested-by: BuildkiteCI Reviewed-by: grfn Autosubmit: tazjin --- third_party/abseil_cpp/absl/container/btree_set.h | 683 ---------------------- 1 file changed, 683 deletions(-) delete mode 100644 third_party/abseil_cpp/absl/container/btree_set.h (limited to 'third_party/abseil_cpp/absl/container/btree_set.h') diff --git a/third_party/abseil_cpp/absl/container/btree_set.h b/third_party/abseil_cpp/absl/container/btree_set.h deleted file mode 100644 index 21ef0a032a85..000000000000 --- a/third_party/abseil_cpp/absl/container/btree_set.h +++ /dev/null @@ -1,683 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// 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 -// -// https://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. -// -// ----------------------------------------------------------------------------- -// File: btree_set.h -// ----------------------------------------------------------------------------- -// -// This header file defines B-tree sets: sorted associative containers of -// values. -// -// * `absl::btree_set<>` -// * `absl::btree_multiset<>` -// -// These B-tree types are similar to the corresponding types in the STL -// (`std::set` and `std::multiset`) and generally conform to the STL interfaces -// of those types. However, because they are implemented using B-trees, they -// are more efficient in most situations. -// -// Unlike `std::set` and `std::multiset`, which are commonly implemented using -// red-black tree nodes, B-tree sets use more generic B-tree nodes able to hold -// multiple values per node. Holding multiple values per node often makes -// B-tree sets perform better than their `std::set` counterparts, because -// multiple entries can be checked within the same cache hit. -// -// However, these types should not be considered drop-in replacements for -// `std::set` and `std::multiset` as there are some API differences, which are -// noted in this header file. -// -// Importantly, insertions and deletions may invalidate outstanding iterators, -// pointers, and references to elements. Such invalidations are typically only -// an issue if insertion and deletion operations are interleaved with the use of -// more than one iterator, pointer, or reference simultaneously. For this -// reason, `insert()` and `erase()` return a valid iterator at the current -// position. - -#ifndef ABSL_CONTAINER_BTREE_SET_H_ -#define ABSL_CONTAINER_BTREE_SET_H_ - -#include "absl/container/internal/btree.h" // IWYU pragma: export -#include "absl/container/internal/btree_container.h" // IWYU pragma: export - -namespace absl { -ABSL_NAMESPACE_BEGIN - -// absl::btree_set<> -// -// An `absl::btree_set` is an ordered associative container of unique key -// values designed to be a more efficient replacement for `std::set` (in most -// cases). -// -// Keys are sorted using an (optional) comparison function, which defaults to -// `std::less`. -// -// An `absl::btree_set` uses a default allocator of `std::allocator` to -// allocate (and deallocate) nodes, and construct and destruct values within -// those nodes. You may instead specify a custom allocator `A` (which in turn -// requires specifying a custom comparator `C`) as in -// `absl::btree_set`. -// -template , - typename Alloc = std::allocator> -class btree_set - : public container_internal::btree_set_container< - container_internal::btree>> { - using Base = typename btree_set::btree_set_container; - - public: - // Constructors and Assignment Operators - // - // A `btree_set` supports the same overload set as `std::set` - // for construction and assignment: - // - // * Default constructor - // - // absl::btree_set set1; - // - // * Initializer List constructor - // - // absl::btree_set set2 = - // {{"huey"}, {"dewey"}, {"louie"},}; - // - // * Copy constructor - // - // absl::btree_set set3(set2); - // - // * Copy assignment operator - // - // absl::btree_set set4; - // set4 = set3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::btree_set set5(std::move(set4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::btree_set set6; - // set6 = std::move(set5); - // - // * Range constructor - // - // std::vector v = {"a", "b"}; - // absl::btree_set set7(v.begin(), v.end()); - btree_set() {} - using Base::Base; - - // btree_set::begin() - // - // Returns an iterator to the beginning of the `btree_set`. - using Base::begin; - - // btree_set::cbegin() - // - // Returns a const iterator to the beginning of the `btree_set`. - using Base::cbegin; - - // btree_set::end() - // - // Returns an iterator to the end of the `btree_set`. - using Base::end; - - // btree_set::cend() - // - // Returns a const iterator to the end of the `btree_set`. - using Base::cend; - - // btree_set::empty() - // - // Returns whether or not the `btree_set` is empty. - using Base::empty; - - // btree_set::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `btree_set` under current memory constraints. This value can be thought - // of as the largest value of `std::distance(begin(), end())` for a - // `btree_set`. - using Base::max_size; - - // btree_set::size() - // - // Returns the number of elements currently within the `btree_set`. - using Base::size; - - // btree_set::clear() - // - // Removes all elements from the `btree_set`. Invalidates any references, - // pointers, or iterators referring to contained elements. - using Base::clear; - - // btree_set::erase() - // - // Erases elements within the `btree_set`. Overloads are listed below. - // - // iterator erase(iterator position): - // iterator erase(const_iterator position): - // - // Erases the element at `position` of the `btree_set`, returning - // the iterator pointing to the element after the one that was erased - // (or end() if none exists). - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning - // the iterator pointing to the element after the interval that was erased - // (or end() if none exists). - // - // template size_type erase(const K& key): - // - // Erases the element with the matching key, if it exists, returning the - // number of elements erased (0 or 1). - using Base::erase; - - // btree_set::insert() - // - // Inserts an element of the specified value into the `btree_set`, - // returning an iterator pointing to the newly inserted element, provided that - // an element with the given key does not already exist. If an insertion - // occurs, any references, pointers, or iterators are invalidated. - // Overloads are listed below. - // - // std::pair insert(const value_type& value): - // - // Inserts a value into the `btree_set`. Returns a pair consisting of an - // iterator to the inserted element (or to the element that prevented the - // insertion) and a bool denoting whether the insertion took place. - // - // std::pair insert(value_type&& value): - // - // Inserts a moveable value into the `btree_set`. Returns a pair - // consisting of an iterator to the inserted element (or to the element that - // prevented the insertion) and a bool denoting whether the insertion took - // place. - // - // iterator insert(const_iterator hint, const value_type& value): - // iterator insert(const_iterator hint, value_type&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element, or to the existing element that prevented the - // insertion. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - using Base::insert; - - // btree_set::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_set`, provided that no element with the given key - // already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - using Base::emplace; - - // btree_set::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_set`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search, and only inserts - // provided that no element with the given key already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - using Base::emplace_hint; - - // btree_set::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // template node_type extract(const K& k): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `btree_set` - // does not contain an element with a matching key, this function returns an - // empty node handle. - // - // NOTE: In this context, `node_type` refers to the C++17 concept of a - // move-only type that owns and provides access to the elements in associative - // containers (https://en.cppreference.com/w/cpp/container/node_handle). - // It does NOT refer to the data layout of the underlying btree. - using Base::extract; - - // btree_set::merge() - // - // Extracts elements from a given `source` btree_set into this - // `btree_set`. If the destination `btree_set` already contains an - // element with an equivalent key, that element is not extracted. - using Base::merge; - - // btree_set::swap(btree_set& other) - // - // Exchanges the contents of this `btree_set` with those of the `other` - // btree_set, avoiding invocation of any move, copy, or swap operations on - // individual elements. - // - // All iterators and references on the `btree_set` remain valid, excepting - // for the past-the-end iterator, which is invalidated. - using Base::swap; - - // btree_set::contains() - // - // template bool contains(const K& key) const: - // - // Determines whether an element comparing equal to the given `key` exists - // within the `btree_set`, returning `true` if so or `false` otherwise. - // - // Supports heterogeneous lookup, provided that the set is provided a - // compatible heterogeneous comparator. - using Base::contains; - - // btree_set::count() - // - // template size_type count(const K& key) const: - // - // Returns the number of elements comparing equal to the given `key` within - // the `btree_set`. Note that this function will return either `1` or `0` - // since duplicate elements are not allowed within a `btree_set`. - // - // Supports heterogeneous lookup, provided that the set is provided a - // compatible heterogeneous comparator. - using Base::count; - - // btree_set::equal_range() - // - // Returns a closed range [first, last], defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `btree_set`. - using Base::equal_range; - - // btree_set::find() - // - // template iterator find(const K& key): - // template const_iterator find(const K& key) const: - // - // Finds an element with the passed `key` within the `btree_set`. - // - // Supports heterogeneous lookup, provided that the set is provided a - // compatible heterogeneous comparator. - using Base::find; - - // btree_set::get_allocator() - // - // Returns the allocator function associated with this `btree_set`. - using Base::get_allocator; - - // btree_set::key_comp(); - // - // Returns the key comparator associated with this `btree_set`. - using Base::key_comp; - - // btree_set::value_comp(); - // - // Returns the value comparator associated with this `btree_set`. The keys to - // sort the elements are the values themselves, therefore `value_comp` and its - // sibling member function `key_comp` are equivalent. - using Base::value_comp; -}; - -// absl::swap(absl::btree_set<>, absl::btree_set<>) -// -// Swaps the contents of two `absl::btree_set` containers. -template -void swap(btree_set &x, btree_set &y) { - return x.swap(y); -} - -// absl::erase_if(absl::btree_set<>, Pred) -// -// Erases all elements that satisfy the predicate pred from the container. -template -void erase_if(btree_set &set, Pred pred) { - for (auto it = set.begin(); it != set.end();) { - if (pred(*it)) { - it = set.erase(it); - } else { - ++it; - } - } -} - -// absl::btree_multiset<> -// -// An `absl::btree_multiset` is an ordered associative container of -// keys and associated values designed to be a more efficient replacement -// for `std::multiset` (in most cases). Unlike `absl::btree_set`, a B-tree -// multiset allows equivalent elements. -// -// Keys are sorted using an (optional) comparison function, which defaults to -// `std::less`. -// -// An `absl::btree_multiset` uses a default allocator of `std::allocator` -// to allocate (and deallocate) nodes, and construct and destruct values within -// those nodes. You may instead specify a custom allocator `A` (which in turn -// requires specifying a custom comparator `C`) as in -// `absl::btree_multiset`. -// -template , - typename Alloc = std::allocator> -class btree_multiset - : public container_internal::btree_multiset_container< - container_internal::btree>> { - using Base = typename btree_multiset::btree_multiset_container; - - public: - // Constructors and Assignment Operators - // - // A `btree_multiset` supports the same overload set as `std::set` - // for construction and assignment: - // - // * Default constructor - // - // absl::btree_multiset set1; - // - // * Initializer List constructor - // - // absl::btree_multiset set2 = - // {{"huey"}, {"dewey"}, {"louie"},}; - // - // * Copy constructor - // - // absl::btree_multiset set3(set2); - // - // * Copy assignment operator - // - // absl::btree_multiset set4; - // set4 = set3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::btree_multiset set5(std::move(set4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::btree_multiset set6; - // set6 = std::move(set5); - // - // * Range constructor - // - // std::vector v = {"a", "b"}; - // absl::btree_multiset set7(v.begin(), v.end()); - btree_multiset() {} - using Base::Base; - - // btree_multiset::begin() - // - // Returns an iterator to the beginning of the `btree_multiset`. - using Base::begin; - - // btree_multiset::cbegin() - // - // Returns a const iterator to the beginning of the `btree_multiset`. - using Base::cbegin; - - // btree_multiset::end() - // - // Returns an iterator to the end of the `btree_multiset`. - using Base::end; - - // btree_multiset::cend() - // - // Returns a const iterator to the end of the `btree_multiset`. - using Base::cend; - - // btree_multiset::empty() - // - // Returns whether or not the `btree_multiset` is empty. - using Base::empty; - - // btree_multiset::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `btree_multiset` under current memory constraints. This value can be - // thought of as the largest value of `std::distance(begin(), end())` for a - // `btree_multiset`. - using Base::max_size; - - // btree_multiset::size() - // - // Returns the number of elements currently within the `btree_multiset`. - using Base::size; - - // btree_multiset::clear() - // - // Removes all elements from the `btree_multiset`. Invalidates any references, - // pointers, or iterators referring to contained elements. - using Base::clear; - - // btree_multiset::erase() - // - // Erases elements within the `btree_multiset`. Overloads are listed below. - // - // iterator erase(iterator position): - // iterator erase(const_iterator position): - // - // Erases the element at `position` of the `btree_multiset`, returning - // the iterator pointing to the element after the one that was erased - // (or end() if none exists). - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning - // the iterator pointing to the element after the interval that was erased - // (or end() if none exists). - // - // template size_type erase(const K& key): - // - // Erases the elements matching the key, if any exist, returning the - // number of elements erased. - using Base::erase; - - // btree_multiset::insert() - // - // Inserts an element of the specified value into the `btree_multiset`, - // returning an iterator pointing to the newly inserted element. - // Any references, pointers, or iterators are invalidated. Overloads are - // listed below. - // - // iterator insert(const value_type& value): - // - // Inserts a value into the `btree_multiset`, returning an iterator to the - // inserted element. - // - // iterator insert(value_type&& value): - // - // Inserts a moveable value into the `btree_multiset`, returning an iterator - // to the inserted element. - // - // iterator insert(const_iterator hint, const value_type& value): - // iterator insert(const_iterator hint, value_type&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - using Base::insert; - - // btree_multiset::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_multiset`. Any references, pointers, or iterators are - // invalidated. - using Base::emplace; - - // btree_multiset::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_multiset`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search. - // - // Any references, pointers, or iterators are invalidated. - using Base::emplace_hint; - - // btree_multiset::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // template node_type extract(const K& k): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `btree_multiset` - // does not contain an element with a matching key, this function returns an - // empty node handle. - // - // NOTE: In this context, `node_type` refers to the C++17 concept of a - // move-only type that owns and provides access to the elements in associative - // containers (https://en.cppreference.com/w/cpp/container/node_handle). - // It does NOT refer to the data layout of the underlying btree. - using Base::extract; - - // btree_multiset::merge() - // - // Extracts elements from a given `source` btree_multiset into this - // `btree_multiset`. If the destination `btree_multiset` already contains an - // element with an equivalent key, that element is not extracted. - using Base::merge; - - // btree_multiset::swap(btree_multiset& other) - // - // Exchanges the contents of this `btree_multiset` with those of the `other` - // btree_multiset, avoiding invocation of any move, copy, or swap operations - // on individual elements. - // - // All iterators and references on the `btree_multiset` remain valid, - // excepting for the past-the-end iterator, which is invalidated. - using Base::swap; - - // btree_multiset::contains() - // - // template bool contains(const K& key) const: - // - // Determines whether an element comparing equal to the given `key` exists - // within the `btree_multiset`, returning `true` if so or `false` otherwise. - // - // Supports heterogeneous lookup, provided that the set is provided a - // compatible heterogeneous comparator. - using Base::contains; - - // btree_multiset::count() - // - // template size_type count(const K& key) const: - // - // Returns the number of elements comparing equal to the given `key` within - // the `btree_multiset`. - // - // Supports heterogeneous lookup, provided that the set is provided a - // compatible heterogeneous comparator. - using Base::count; - - // btree_multiset::equal_range() - // - // Returns a closed range [first, last], defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `btree_multiset`. - using Base::equal_range; - - // btree_multiset::find() - // - // template iterator find(const K& key): - // template const_iterator find(const K& key) const: - // - // Finds an element with the passed `key` within the `btree_multiset`. - // - // Supports heterogeneous lookup, provided that the set is provided a - // compatible heterogeneous comparator. - using Base::find; - - // btree_multiset::get_allocator() - // - // Returns the allocator function associated with this `btree_multiset`. - using Base::get_allocator; - - // btree_multiset::key_comp(); - // - // Returns the key comparator associated with this `btree_multiset`. - using Base::key_comp; - - // btree_multiset::value_comp(); - // - // Returns the value comparator associated with this `btree_multiset`. The - // keys to sort the elements are the values themselves, therefore `value_comp` - // and its sibling member function `key_comp` are equivalent. - using Base::value_comp; -}; - -// absl::swap(absl::btree_multiset<>, absl::btree_multiset<>) -// -// Swaps the contents of two `absl::btree_multiset` containers. -template -void swap(btree_multiset &x, btree_multiset &y) { - return x.swap(y); -} - -// absl::erase_if(absl::btree_multiset<>, Pred) -// -// Erases all elements that satisfy the predicate pred from the container. -template -void erase_if(btree_multiset &set, Pred pred) { - for (auto it = set.begin(); it != set.end();) { - if (pred(*it)) { - it = set.erase(it); - } else { - ++it; - } - } -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_BTREE_SET_H_ -- cgit 1.4.1