STL/stl/inc/set

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C++

// set standard header
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#pragma once
#ifndef _SET_
#define _SET_
#include <yvals_core.h>
#if _STL_COMPILER_PREPROCESSOR
#include <xtree>
#if _HAS_CXX17
#include <xpolymorphic_allocator.h>
#endif // _HAS_CXX17
#pragma pack(push, _CRT_PACKING)
#pragma warning(push, _STL_WARNING_LEVEL)
#pragma warning(disable : _STL_DISABLED_WARNINGS)
_STL_DISABLE_CLANG_WARNINGS
#pragma push_macro("new")
#undef new
_STD_BEGIN
// CLASS TEMPLATE _Tset_traits
template <class _Kty, // key/value type
class _Pr, // comparator predicate type
class _Alloc, // actual allocator type (should be value allocator)
bool _Mfl> // true if multiple equivalent keys are permitted
class _Tset_traits { // traits required to make _Tree behave like a set
public:
using key_type = _Kty;
using value_type = _Kty;
using key_compare = _Pr;
using allocator_type = _Alloc;
#if _HAS_CXX17
using node_type = _Node_handle<_Tree_node<value_type, typename allocator_traits<_Alloc>::void_pointer>, _Alloc,
_Node_handle_set_base, _Kty>;
#endif // _HAS_CXX17
static constexpr bool _Multi = _Mfl;
template <class... _Args>
using _In_place_key_extractor = _In_place_key_extract_set<_Kty, _Args...>;
using value_compare = key_compare;
static const _Kty& _Kfn(const value_type& _Val) { // extract key from element value
return _Val;
}
};
// CLASS TEMPLATE set
template <class _Kty, class _Pr = less<_Kty>, class _Alloc = allocator<_Kty>>
class set : public _Tree<_Tset_traits<_Kty, _Pr, _Alloc, false>> {
// ordered red-black tree of key values, unique keys
public:
static_assert(!_ENFORCE_MATCHING_ALLOCATORS || is_same_v<_Kty, typename _Alloc::value_type>,
_MISMATCHED_ALLOCATOR_MESSAGE("set<T, Compare, Allocator>", "T"));
using _Mybase = _Tree<_Tset_traits<_Kty, _Pr, _Alloc, false>>;
using key_type = _Kty;
using key_compare = _Pr;
using value_compare = typename _Mybase::value_compare;
using value_type = typename _Mybase::value_type;
using allocator_type = typename _Mybase::allocator_type;
using size_type = typename _Mybase::size_type;
using difference_type = typename _Mybase::difference_type;
using pointer = typename _Mybase::pointer;
using const_pointer = typename _Mybase::const_pointer;
using reference = value_type&;
using const_reference = const value_type&;
using iterator = typename _Mybase::iterator;
using const_iterator = typename _Mybase::const_iterator;
using reverse_iterator = typename _Mybase::reverse_iterator;
using const_reverse_iterator = typename _Mybase::const_reverse_iterator;
using _Alnode = typename _Mybase::_Alnode;
using _Alnode_traits = typename _Mybase::_Alnode_traits;
#if _HAS_CXX17
using insert_return_type = _Insert_return_type<iterator, typename _Mybase::node_type>;
#endif // _HAS_CXX17
set() : _Mybase(key_compare()) {}
explicit set(const allocator_type& _Al) : _Mybase(key_compare(), _Al) {}
set(const set& _Right) : _Mybase(_Right, _Alnode_traits::select_on_container_copy_construction(_Right._Getal())) {}
set(const set& _Right, const allocator_type& _Al) : _Mybase(_Right, _Al) {}
explicit set(const key_compare& _Pred) : _Mybase(_Pred) {}
set(const key_compare& _Pred, const allocator_type& _Al) : _Mybase(_Pred, _Al) {}
template <class _Iter>
set(_Iter _First, _Iter _Last) : _Mybase(key_compare()) {
this->insert(_First, _Last);
}
template <class _Iter>
set(_Iter _First, _Iter _Last, const key_compare& _Pred) : _Mybase(_Pred) {
this->insert(_First, _Last);
}
template <class _Iter>
set(_Iter _First, _Iter _Last, const allocator_type& _Al) : _Mybase(key_compare(), _Al) {
this->insert(_First, _Last);
}
template <class _Iter>
set(_Iter _First, _Iter _Last, const key_compare& _Pred, const allocator_type& _Al) : _Mybase(_Pred, _Al) {
this->insert(_First, _Last);
}
set& operator=(const set& _Right) {
_Mybase::operator=(_Right);
return *this;
}
set(set&& _Right) : _Mybase(_STD move(_Right)) {}
set(set&& _Right, const allocator_type& _Al) : _Mybase(_STD move(_Right), _Al) {}
set& operator=(set&& _Right) noexcept(_Alnode_traits::is_always_equal::value&& is_nothrow_move_assignable_v<_Pr>) {
_Mybase::operator=(_STD move(_Right));
return *this;
}
void swap(set& _Right) noexcept(noexcept(_Mybase::swap(_Right))) {
_Mybase::swap(_Right);
}
set(initializer_list<value_type> _Ilist) : _Mybase(key_compare()) {
this->insert(_Ilist);
}
set(initializer_list<value_type> _Ilist, const key_compare& _Pred) : _Mybase(_Pred) {
this->insert(_Ilist);
}
set(initializer_list<value_type> _Ilist, const allocator_type& _Al) : _Mybase(key_compare(), _Al) {
this->insert(_Ilist);
}
set(initializer_list<value_type> _Ilist, const key_compare& _Pred, const allocator_type& _Al)
: _Mybase(_Pred, _Al) {
this->insert(_Ilist);
}
set& operator=(initializer_list<value_type> _Ilist) {
this->clear();
this->insert(_Ilist);
return *this;
}
using _Mybase::_Unchecked_begin;
using _Mybase::_Unchecked_end;
};
#if _HAS_CXX17
template <class _Iter, class _Pr = less<_Iter_value_t<_Iter>>, class _Alloc = allocator<_Iter_value_t<_Iter>>,
enable_if_t<conjunction_v<_Is_iterator<_Iter>, negation<_Is_allocator<_Pr>>, _Is_allocator<_Alloc>>, int> = 0>
set(_Iter, _Iter, _Pr = _Pr(), _Alloc = _Alloc()) -> set<_Iter_value_t<_Iter>, _Pr, _Alloc>;
template <class _Kty, class _Pr = less<_Kty>, class _Alloc = allocator<_Kty>,
enable_if_t<conjunction_v<negation<_Is_allocator<_Pr>>, _Is_allocator<_Alloc>>, int> = 0>
set(initializer_list<_Kty>, _Pr = _Pr(), _Alloc = _Alloc()) -> set<_Kty, _Pr, _Alloc>;
template <class _Iter, class _Alloc, enable_if_t<conjunction_v<_Is_iterator<_Iter>, _Is_allocator<_Alloc>>, int> = 0>
set(_Iter, _Iter, _Alloc) -> set<_Iter_value_t<_Iter>, less<_Iter_value_t<_Iter>>, _Alloc>;
template <class _Kty, class _Alloc, enable_if_t<_Is_allocator<_Alloc>::value, int> = 0>
set(initializer_list<_Kty>, _Alloc) -> set<_Kty, less<_Kty>, _Alloc>;
#endif // _HAS_CXX17
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator==(const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return _Left.size() == _Right.size()
&& _STD equal(_Left._Unchecked_begin(), _Left._Unchecked_end_iter(), _Right._Unchecked_begin());
}
#if !_HAS_CXX20
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator!=(const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return !(_Left == _Right);
}
#endif // !_HAS_CXX20
#ifdef __cpp_lib_concepts
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD _Synth_three_way_result<_Kty> operator<=>(
const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return _STD lexicographical_compare_three_way(_Left._Unchecked_begin(), _Left._Unchecked_end_iter(),
_Right._Unchecked_begin(), _Right._Unchecked_end_iter(), _Synth_three_way{});
}
#else // ^^^ defined(__cpp_lib_concepts) / !defined(__cpp_lib_concepts) vvv
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator<(const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return _STD lexicographical_compare(
_Left._Unchecked_begin(), _Left._Unchecked_end_iter(), _Right._Unchecked_begin(), _Right._Unchecked_end_iter());
}
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator>(const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return _Right < _Left;
}
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator<=(const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return !(_Right < _Left);
}
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator>=(const set<_Kty, _Pr, _Alloc>& _Left, const set<_Kty, _Pr, _Alloc>& _Right) {
return !(_Left < _Right);
}
#endif // ^^^ !defined(__cpp_lib_concepts) ^^^
template <class _Kty, class _Pr, class _Alloc>
void swap(set<_Kty, _Pr, _Alloc>& _Left, set<_Kty, _Pr, _Alloc>& _Right) noexcept(noexcept(_Left.swap(_Right))) {
_Left.swap(_Right);
}
#if _HAS_CXX20
template <class _Kty, class _Keylt, class _Alloc, class _Pr>
typename set<_Kty, _Keylt, _Alloc>::size_type erase_if(set<_Kty, _Keylt, _Alloc>& _Cont, _Pr _Pred) {
return _Erase_nodes_if(_Cont, _Pass_fn(_Pred));
}
#endif // _HAS_CXX20
// CLASS TEMPLATE multiset
template <class _Kty, class _Pr = less<_Kty>, class _Alloc = allocator<_Kty>>
class multiset : public _Tree<_Tset_traits<_Kty, _Pr, _Alloc, true>> {
// ordered red-black tree of key values, non-unique keys
public:
static_assert(!_ENFORCE_MATCHING_ALLOCATORS || is_same_v<_Kty, typename _Alloc::value_type>,
_MISMATCHED_ALLOCATOR_MESSAGE("multiset<T, Compare, Allocator>", "T"));
using _Mybase = _Tree<_Tset_traits<_Kty, _Pr, _Alloc, true>>;
using key_type = _Kty;
using key_compare = _Pr;
using value_compare = typename _Mybase::value_compare;
using value_type = typename _Mybase::value_type;
using allocator_type = typename _Mybase::allocator_type;
using size_type = typename _Mybase::size_type;
using difference_type = typename _Mybase::difference_type;
using pointer = typename _Mybase::pointer;
using const_pointer = typename _Mybase::const_pointer;
using reference = value_type&;
using const_reference = const value_type&;
using iterator = typename _Mybase::iterator;
using const_iterator = typename _Mybase::const_iterator;
using reverse_iterator = typename _Mybase::reverse_iterator;
using const_reverse_iterator = typename _Mybase::const_reverse_iterator;
using _Alnode = typename _Mybase::_Alnode;
using _Alnode_traits = typename _Mybase::_Alnode_traits;
multiset() : _Mybase(key_compare()) {}
explicit multiset(const allocator_type& _Al) : _Mybase(key_compare(), _Al) {}
multiset(const multiset& _Right)
: _Mybase(_Right, _Alnode_traits::select_on_container_copy_construction(_Right._Getal())) {}
multiset(const multiset& _Right, const allocator_type& _Al) : _Mybase(_Right, _Al) {}
explicit multiset(const key_compare& _Pred) : _Mybase(_Pred) {}
multiset(const key_compare& _Pred, const allocator_type& _Al) : _Mybase(_Pred, _Al) {}
template <class _Iter>
multiset(_Iter _First, _Iter _Last) : _Mybase(key_compare()) {
this->insert(_First, _Last);
}
template <class _Iter>
multiset(_Iter _First, _Iter _Last, const key_compare& _Pred) : _Mybase(_Pred) {
this->insert(_First, _Last);
}
template <class _Iter>
multiset(_Iter _First, _Iter _Last, const allocator_type& _Al) : _Mybase(key_compare(), _Al) {
this->insert(_First, _Last);
}
template <class _Iter>
multiset(_Iter _First, _Iter _Last, const key_compare& _Pred, const allocator_type& _Al) : _Mybase(_Pred, _Al) {
this->insert(_First, _Last);
}
multiset& operator=(const multiset& _Right) {
_Mybase::operator=(_Right);
return *this;
}
multiset(multiset&& _Right) : _Mybase(_STD move(_Right)) {}
multiset(multiset&& _Right, const allocator_type& _Al) : _Mybase(_STD move(_Right), _Al) {}
multiset& operator=(multiset&& _Right) noexcept(
_Alnode_traits::is_always_equal::value&& is_nothrow_move_assignable_v<_Pr>) {
_Mybase::operator=(_STD move(_Right));
return *this;
}
template <class... _Valty>
iterator emplace(_Valty&&... _Val) {
return _Mybase::emplace(_STD forward<_Valty>(_Val)...).first;
}
void swap(multiset& _Right) noexcept(noexcept(_Mybase::swap(_Right))) {
_Mybase::swap(_Right);
}
multiset(initializer_list<value_type> _Ilist) : _Mybase(key_compare()) {
this->insert(_Ilist);
}
multiset(initializer_list<value_type> _Ilist, const key_compare& _Pred) : _Mybase(_Pred) {
this->insert(_Ilist);
}
multiset(initializer_list<value_type> _Ilist, const allocator_type& _Al) : _Mybase(key_compare(), _Al) {
this->insert(_Ilist);
}
multiset(initializer_list<value_type> _Ilist, const key_compare& _Pred, const allocator_type& _Al)
: _Mybase(_Pred, _Al) {
this->insert(_Ilist);
}
multiset& operator=(initializer_list<value_type> _Ilist) {
this->clear();
this->insert(_Ilist);
return *this;
}
using _Mybase::_Unchecked_begin;
using _Mybase::_Unchecked_end;
};
#if _HAS_CXX17
template <class _Iter, class _Pr = less<_Iter_value_t<_Iter>>, class _Alloc = allocator<_Iter_value_t<_Iter>>,
enable_if_t<conjunction_v<_Is_iterator<_Iter>, negation<_Is_allocator<_Pr>>, _Is_allocator<_Alloc>>, int> = 0>
multiset(_Iter, _Iter, _Pr = _Pr(), _Alloc = _Alloc()) -> multiset<_Iter_value_t<_Iter>, _Pr, _Alloc>;
template <class _Kty, class _Pr = less<_Kty>, class _Alloc = allocator<_Kty>,
enable_if_t<conjunction_v<negation<_Is_allocator<_Pr>>, _Is_allocator<_Alloc>>, int> = 0>
multiset(initializer_list<_Kty>, _Pr = _Pr(), _Alloc = _Alloc()) -> multiset<_Kty, _Pr, _Alloc>;
template <class _Iter, class _Alloc, enable_if_t<conjunction_v<_Is_iterator<_Iter>, _Is_allocator<_Alloc>>, int> = 0>
multiset(_Iter, _Iter, _Alloc) -> multiset<_Iter_value_t<_Iter>, less<_Iter_value_t<_Iter>>, _Alloc>;
template <class _Kty, class _Alloc, enable_if_t<_Is_allocator<_Alloc>::value, int> = 0>
multiset(initializer_list<_Kty>, _Alloc) -> multiset<_Kty, less<_Kty>, _Alloc>;
#endif // _HAS_CXX17
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator==(const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return _Left.size() == _Right.size()
&& _STD equal(_Left._Unchecked_begin(), _Left._Unchecked_end_iter(), _Right._Unchecked_begin());
}
#if !_HAS_CXX20
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator!=(const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return !(_Left == _Right);
}
#endif // !_HAS_CXX20
#ifdef __cpp_lib_concepts
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD _Synth_three_way_result<_Kty> operator<=>(
const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return _STD lexicographical_compare_three_way(_Left._Unchecked_begin(), _Left._Unchecked_end_iter(),
_Right._Unchecked_begin(), _Right._Unchecked_end_iter(), _Synth_three_way{});
}
#else // ^^^ defined(__cpp_lib_concepts) / !defined(__cpp_lib_concepts) vvv
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator<(const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return _STD lexicographical_compare(
_Left._Unchecked_begin(), _Left._Unchecked_end_iter(), _Right._Unchecked_begin(), _Right._Unchecked_end_iter());
}
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator>(const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return _Right < _Left;
}
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator<=(const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return !(_Right < _Left);
}
template <class _Kty, class _Pr, class _Alloc>
_NODISCARD bool operator>=(const multiset<_Kty, _Pr, _Alloc>& _Left, const multiset<_Kty, _Pr, _Alloc>& _Right) {
return !(_Left < _Right);
}
#endif // ^^^ !defined(__cpp_lib_concepts) ^^^
template <class _Kty, class _Pr, class _Alloc>
void swap(multiset<_Kty, _Pr, _Alloc>& _Left, multiset<_Kty, _Pr, _Alloc>& _Right) noexcept(
noexcept(_Left.swap(_Right))) {
_Left.swap(_Right);
}
#if _HAS_CXX20
template <class _Kty, class _Keylt, class _Alloc, class _Pr>
typename multiset<_Kty, _Keylt, _Alloc>::size_type erase_if(multiset<_Kty, _Keylt, _Alloc>& _Cont, _Pr _Pred) {
return _Erase_nodes_if(_Cont, _Pass_fn(_Pred));
}
#endif // _HAS_CXX20
#if _HAS_CXX17
namespace pmr {
template <class _Kty, class _Pr = less<_Kty>>
using set = _STD set<_Kty, _Pr, polymorphic_allocator<_Kty>>;
template <class _Kty, class _Pr = less<_Kty>>
using multiset = _STD multiset<_Kty, _Pr, polymorphic_allocator<_Kty>>;
} // namespace pmr
#endif // _HAS_CXX17
_STD_END
#pragma pop_macro("new")
_STL_RESTORE_CLANG_WARNINGS
#pragma warning(pop)
#pragma pack(pop)
#endif // _STL_COMPILER_PREPROCESSOR
#endif // _SET_