Exit Zen
332
:1430
English
Returns:;; The number of elements erased (0 or 1). Throws:;; Only throws an exception if it is thrown by `hasher`, `key_equal` or `f`. Notes:;; `f` is passed a non-const reference to `x`. + + The `template<class K, class F>` overload only participates in overload resolution if `std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>>` is `false`. + + The `template<class K, class F>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
461/7270 · 727
336
:1331
English
```c++ template<class H2, class P2> void merge(unordered_map<Key, T, H2, P2, Allocator>& source); template<class H2, class P2> void merge(unordered_map<Key, T, H2, P2, Allocator>&& source); template<class H2, class P2> void merge(unordered_multimap<Key, T, H2, P2, Allocator>& source); template<class H2, class P2> void merge(unordered_multimap<Key, T, H2, P2, Allocator>&& source); ```
554/3860 · 386
337
:1419
English
```c++ template<class... Args, class F1, class F2> bool try_emplace_and_visit(const key_type& k, Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool try_emplace_and_cvisit(const key_type& k, Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool try_emplace_and_visit(key_type&& k, Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool try_emplace_and_cvisit(key_type&& k, Args&&... args, F1&& f1, F2&& f2); template<class K, class... Args, class F1, class F2> bool try_emplace_and_visit(K&& k, Args&&... args, F1&& f1, F2&& f2); template<class K, class... Args, class F1, class F2> bool try_emplace_and_cvisit(K&& k, Args&&... args, F1&& f1, F2&& f2); ```
1039/7470 · 747
338
:1328
English
Returns:;; The number of elements erased (0 or 1). Throws:;; Only throws an exception if it is thrown by `hasher`, `key_equal` or `f`. Notes:;; The `template<class K, class F>` overload only participates in overload resolution if `std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>>` is `false`. + + The `template<class K, class F>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.
465/6790 · 679
338
:1199
English
```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator==(const unordered_flat_set<Key, T, Hash, Pred, Alloc>& x, const unordered_flat_set<Key, T, Hash, Pred, Alloc>& y); ```
259/2050 · 205
340
:1454
English
```c++ template<class ExecutionPolicy, class F> void erase_if(ExecutionPolicy&& policy, F f); ```
122/980 · 98
343
:1213
English
```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator!=(const unordered_flat_set<Key, T, Hash, Pred, Alloc>& x, const unordered_flat_set<Key, T, Hash, Pred, Alloc>& y); ```
259/2050 · 205
346
:1350
English
```c++ template<class ExecutionPolicy, class F> void erase_if(ExecutionPolicy&& policy, F f); ```
122/980 · 98
347
:1466
English
```c++ template<class M> bool insert_or_assign(const key_type& k, M&& obj); template<class M> bool insert_or_assign(key_type&& k, M&& obj); template<class K, class M> bool insert_or_assign(K&& k, M&& obj); ```
292/2090 · 209
347
:1225
English
```c++ template<class Key, class T, class Hash, class Pred, class Alloc> void swap(unordered_flat_set<Key, T, Hash, Pred, Alloc>& x, unordered_flat_set<Key, T, Hash, Pred, Alloc>& y) noexcept(noexcept(x.swap(y))); ```
271/2170 · 217
351
:1360
English
```c++ mapped_type& operator[](const key_type& k); mapped_type& operator[](key_type&& k); template<class K> mapped_type& operator[](K&& k); ```
186/1430 · 143
353
:1243
English
```c++ template<class K, class T, class H, class P, class A, class Predicate> typename unordered_flat_set<K, T, H, P, A>::size_type erase_if(unordered_flat_set<K, T, H, P, A>& c, Predicate pred); ```
242/1990 · 199
356
:1502
English
```c++ template<class H2, class P2> size_type merge(concurrent_flat_map<Key, T, H2, P2, Allocator>& source); template<class H2, class P2> size_type merge(concurrent_flat_map<Key, T, H2, P2, Allocator>&& source); ```
299/2150 · 215
357
:1385
English
```c++ node_type extract(const key_type& k); template<class K> node_type extract(K&& k); ```
115/920 · 92
362
:1400
English
```c++ template<class F> node_type extract_if(const key_type& k, F f); template<class K, class F> node_type extract_if(K&& k, F f); ```
175/1350 · 135
362
:1397
English
```c++ iterator find(const key_type& k); const_iterator find(const key_type& k) const; template<class K> iterator find(const K& k); template<class K> const_iterator find(const K& k) const; template<typename CompatibleKey, typename CompatibleHash, typename CompatiblePredicate> iterator find(CompatibleKey const& k, CompatibleHash const& hash, CompatiblePredicate const& eq); template<typename CompatibleKey, typename CompatibleHash, typename CompatiblePredicate> const_iterator find(CompatibleKey const& k, CompatibleHash const& hash, CompatiblePredicate const& eq) const;
684/5940 · 594
369
:1307
English
```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator==(const unordered_node_set<Key, T, Hash, Pred, Alloc>& x, const unordered_node_set<Key, T, Hash, Pred, Alloc>& y); ```
259/2050 · 205
371
:1544
English
```c++ template<class ExecutionPolicy, class F> void erase_if(ExecutionPolicy&& policy, F f); ```
122/980 · 98
372
:1428
English
```c++ template<class H2, class P2> size_type merge(concurrent_node_set<Key, H2, P2, Allocator>& source); template<class H2, class P2> size_type merge(concurrent_node_set<Key, H2, P2, Allocator>&& source); ```
287/2090 · 209
374
:1321
English
```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator!=(const unordered_node_set<Key, T, Hash, Pred, Alloc>& x, const unordered_node_set<Key, T, Hash, Pred, Alloc>& y); ```
259/2050 · 205