Apr 26, 2025 · std::set is an associative container that contains a sorted set of unique objects of type Key. Sorting is done using the key comparison function Compare. Search, removal, and …

Jul 12, 2023 · Constructs new container from a variety of data sources and optionally using user supplied allocator alloc or comparison function object comp.

Nov 27, 2023 · namespace std { template<class Key, class Compare = less <Key>, class Allocator = allocator <Key>> class multiset { public: // types using key_type = Key; using key ...

Dec 10, 2024 · Sets all bits to true or sets one bit to specified value.

Mar 15, 2024 · 1,2) A pair consisting of an iterator to the inserted element (or to the element that prevented the insertion) and a bool value set to true if and only if the insertion took place.

Nov 5, 2023 · 2) Checks if there is an element with key that compares equivalent to x.

Feb 22, 2025 · each of which is designed to support a different set of operations. The container manages the storage space that is allocated for its elements and provides member functions …

Nov 20, 2021 · This overload participates in overload resolution only if Compare is transparent. It allows calling this function without constructing an instance of Key.

Mar 30, 2025 · Planned Maintenance The site will be in a temporary read-only mode in the next few weeks to facilitate some long-overdue software updates. We apologize for any …

Apr 26, 2025 · std::unordered_set is an associative container that contains a set of unique objects of type Key. Search, insertion, and removal have average constant-time complexity.