diff options
Diffstat (limited to 'libcxx/include/__tree')
-rw-r--r-- | libcxx/include/__tree | 105 |
1 files changed, 81 insertions, 24 deletions
diff --git a/libcxx/include/__tree b/libcxx/include/__tree index ef960d4..d7d074a0 100644 --- a/libcxx/include/__tree +++ b/libcxx/include/__tree @@ -1166,32 +1166,87 @@ public: template <class _Key> _LIBCPP_HIDE_FROM_ABI size_type __count_multi(const _Key& __k) const; + template <bool _LowerBound, class _Key> + _LIBCPP_HIDE_FROM_ABI __end_node_pointer __lower_upper_bound_unique_impl(const _Key& __v) const { + auto __rt = __root(); + auto __result = __end_node(); + auto __comp = __lazy_synth_three_way_comparator<_Compare, _Key, value_type>(value_comp()); + while (__rt != nullptr) { + auto __comp_res = __comp(__v, __rt->__get_value()); + + if (__comp_res.__less()) { + __result = static_cast<__end_node_pointer>(__rt); + __rt = static_cast<__node_pointer>(__rt->__left_); + } else if (__comp_res.__greater()) { + __rt = static_cast<__node_pointer>(__rt->__right_); + } else if _LIBCPP_CONSTEXPR (_LowerBound) { + return static_cast<__end_node_pointer>(__rt); + } else { + return __rt->__right_ ? static_cast<__end_node_pointer>(std::__tree_min(__rt->__right_)) : __result; + } + } + return __result; + } + + template <class _Key> + _LIBCPP_HIDE_FROM_ABI iterator __lower_bound_unique(const _Key& __v) { + return iterator(__lower_upper_bound_unique_impl<true>(__v)); + } + template <class _Key> - _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _Key& __v) { - return __lower_bound(__v, __root(), __end_node()); + _LIBCPP_HIDE_FROM_ABI const_iterator __lower_bound_unique(const _Key& __v) const { + return const_iterator(__lower_upper_bound_unique_impl<true>(__v)); } + template <class _Key> - _LIBCPP_HIDE_FROM_ABI iterator __lower_bound(const _Key& __v, __node_pointer __root, __end_node_pointer __result); + _LIBCPP_HIDE_FROM_ABI iterator __upper_bound_unique(const _Key& __v) { + return iterator(__lower_upper_bound_unique_impl<false>(__v)); + } + template <class _Key> - _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _Key& __v) const { - return __lower_bound(__v, __root(), __end_node()); + _LIBCPP_HIDE_FROM_ABI const_iterator __upper_bound_unique(const _Key& __v) const { + return iterator(__lower_upper_bound_unique_impl<false>(__v)); } + +private: + template <class _Key> + _LIBCPP_HIDE_FROM_ABI iterator + __lower_bound_multi(const _Key& __v, __node_pointer __root, __end_node_pointer __result); + template <class _Key> _LIBCPP_HIDE_FROM_ABI const_iterator - __lower_bound(const _Key& __v, __node_pointer __root, __end_node_pointer __result) const; + __lower_bound_multi(const _Key& __v, __node_pointer __root, __end_node_pointer __result) const; + +public: + template <class _Key> + _LIBCPP_HIDE_FROM_ABI iterator __lower_bound_multi(const _Key& __v) { + return __lower_bound_multi(__v, __root(), __end_node()); + } template <class _Key> - _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _Key& __v) { - return __upper_bound(__v, __root(), __end_node()); + _LIBCPP_HIDE_FROM_ABI const_iterator __lower_bound_multi(const _Key& __v) const { + return __lower_bound_multi(__v, __root(), __end_node()); } + template <class _Key> - _LIBCPP_HIDE_FROM_ABI iterator __upper_bound(const _Key& __v, __node_pointer __root, __end_node_pointer __result); + _LIBCPP_HIDE_FROM_ABI iterator __upper_bound_multi(const _Key& __v) { + return __upper_bound_multi(__v, __root(), __end_node()); + } + template <class _Key> - _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _Key& __v) const { - return __upper_bound(__v, __root(), __end_node()); + _LIBCPP_HIDE_FROM_ABI const_iterator __upper_bound_multi(const _Key& __v) const { + return __upper_bound_multi(__v, __root(), __end_node()); } + +private: + template <class _Key> + _LIBCPP_HIDE_FROM_ABI iterator + __upper_bound_multi(const _Key& __v, __node_pointer __root, __end_node_pointer __result); + template <class _Key> _LIBCPP_HIDE_FROM_ABI const_iterator - __upper_bound(const _Key& __v, __node_pointer __root, __end_node_pointer __result) const; + __upper_bound_multi(const _Key& __v, __node_pointer __root, __end_node_pointer __result) const; + +public: template <class _Key> _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> __equal_range_unique(const _Key& __k); template <class _Key> @@ -2100,16 +2155,16 @@ __tree<_Tp, _Compare, _Allocator>::__count_multi(const _Key& __k) const { __rt = static_cast<__node_pointer>(__rt->__right_); else return std::distance( - __lower_bound(__k, static_cast<__node_pointer>(__rt->__left_), static_cast<__end_node_pointer>(__rt)), - __upper_bound(__k, static_cast<__node_pointer>(__rt->__right_), __result)); + __lower_bound_multi(__k, static_cast<__node_pointer>(__rt->__left_), static_cast<__end_node_pointer>(__rt)), + __upper_bound_multi(__k, static_cast<__node_pointer>(__rt->__right_), __result)); } return 0; } template <class _Tp, class _Compare, class _Allocator> template <class _Key> -typename __tree<_Tp, _Compare, _Allocator>::iterator -__tree<_Tp, _Compare, _Allocator>::__lower_bound(const _Key& __v, __node_pointer __root, __end_node_pointer __result) { +typename __tree<_Tp, _Compare, _Allocator>::iterator __tree<_Tp, _Compare, _Allocator>::__lower_bound_multi( + const _Key& __v, __node_pointer __root, __end_node_pointer __result) { while (__root != nullptr) { if (!value_comp()(__root->__get_value(), __v)) { __result = static_cast<__end_node_pointer>(__root); @@ -2122,7 +2177,7 @@ __tree<_Tp, _Compare, _Allocator>::__lower_bound(const _Key& __v, __node_pointer template <class _Tp, class _Compare, class _Allocator> template <class _Key> -typename __tree<_Tp, _Compare, _Allocator>::const_iterator __tree<_Tp, _Compare, _Allocator>::__lower_bound( +typename __tree<_Tp, _Compare, _Allocator>::const_iterator __tree<_Tp, _Compare, _Allocator>::__lower_bound_multi( const _Key& __v, __node_pointer __root, __end_node_pointer __result) const { while (__root != nullptr) { if (!value_comp()(__root->__get_value(), __v)) { @@ -2136,8 +2191,8 @@ typename __tree<_Tp, _Compare, _Allocator>::const_iterator __tree<_Tp, _Compare, template <class _Tp, class _Compare, class _Allocator> template <class _Key> -typename __tree<_Tp, _Compare, _Allocator>::iterator -__tree<_Tp, _Compare, _Allocator>::__upper_bound(const _Key& __v, __node_pointer __root, __end_node_pointer __result) { +typename __tree<_Tp, _Compare, _Allocator>::iterator __tree<_Tp, _Compare, _Allocator>::__upper_bound_multi( + const _Key& __v, __node_pointer __root, __end_node_pointer __result) { while (__root != nullptr) { if (value_comp()(__v, __root->__get_value())) { __result = static_cast<__end_node_pointer>(__root); @@ -2150,7 +2205,7 @@ __tree<_Tp, _Compare, _Allocator>::__upper_bound(const _Key& __v, __node_pointer template <class _Tp, class _Compare, class _Allocator> template <class _Key> -typename __tree<_Tp, _Compare, _Allocator>::const_iterator __tree<_Tp, _Compare, _Allocator>::__upper_bound( +typename __tree<_Tp, _Compare, _Allocator>::const_iterator __tree<_Tp, _Compare, _Allocator>::__upper_bound_multi( const _Key& __v, __node_pointer __root, __end_node_pointer __result) const { while (__root != nullptr) { if (value_comp()(__v, __root->__get_value())) { @@ -2226,8 +2281,9 @@ __tree<_Tp, _Compare, _Allocator>::__equal_range_multi(const _Key& __k) { } else if (__comp_res.__greater()) __rt = static_cast<__node_pointer>(__rt->__right_); else - return _Pp(__lower_bound(__k, static_cast<__node_pointer>(__rt->__left_), static_cast<__end_node_pointer>(__rt)), - __upper_bound(__k, static_cast<__node_pointer>(__rt->__right_), __result)); + return _Pp( + __lower_bound_multi(__k, static_cast<__node_pointer>(__rt->__left_), static_cast<__end_node_pointer>(__rt)), + __upper_bound_multi(__k, static_cast<__node_pointer>(__rt->__right_), __result)); } return _Pp(iterator(__result), iterator(__result)); } @@ -2249,8 +2305,9 @@ __tree<_Tp, _Compare, _Allocator>::__equal_range_multi(const _Key& __k) const { } else if (__comp_res.__greater()) __rt = static_cast<__node_pointer>(__rt->__right_); else - return _Pp(__lower_bound(__k, static_cast<__node_pointer>(__rt->__left_), static_cast<__end_node_pointer>(__rt)), - __upper_bound(__k, static_cast<__node_pointer>(__rt->__right_), __result)); + return _Pp( + __lower_bound_multi(__k, static_cast<__node_pointer>(__rt->__left_), static_cast<__end_node_pointer>(__rt)), + __upper_bound_multi(__k, static_cast<__node_pointer>(__rt->__right_), __result)); } return _Pp(const_iterator(__result), const_iterator(__result)); } |