Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Flat Set (adoc)

Exit Zen

344 :1219

	English Return `false` if `x.size() == y.size()` and for every element in `x`, there is an element in `y` with the same key, with an equal value (using `operator==` to compare the value types). 185/10000 · 185
:1222 :1222

	English Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates. 95/10000 · 95
346 :1224

	English Swap 4/10000 · 4
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))); ``` 217/10000 · 217
348 :1232

	English Swaps the contents of `x` and `y`. 34/10000 · 34
:1234 :1234

	English If `Allocator::propagate_on_container_swap` is declared and `Allocator::propagate_on_container_swap::value` is `true` then the containers' allocators are swapped. Otherwise, swapping with unequal allocators results in undefined behavior. 237/10000 · 237
350 :1237

	English Effects:;; `x.swap(y)` Throws:;; Nothing unless `key_equal` or `hasher` throw on swapping. 90/10000 · 90
:1240 :1240

	English --- 3/10000 · 3
352 :1242

	English erase_if 8/10000 · 8
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); ``` 199/10000 · 199
354 :1249

	English Traverses the container `c` and removes all elements for which the supplied predicate returns `true`. 101/10000 · 101
355 :1252

	English Returns:;; The number of erased elements. Notes:;; Equivalent to: + + ```c++ auto original_size = c.size(); for (auto i = c.begin(), last = c.end(); i != last; ) { if (pred(*i)) { i = c.erase(i); } else { ++i; } } return original_size - c.size(); ``` 250/10000 · 250
356 :1267

	English Serialization 13/10000 · 13
357 :1269

	English ``unordered_flat_set``s can be archived/retrieved by means of link:../../../../../serialization/index.html[Boost.Serialization^] using the API provided by this library. Both regular and XML archives are supported. 213/10000 · 213
358 :1273

	English Saving an unordered_flat_set to an archive 42/10000 · 42
359 :1275

	English Saves all the elements of an `unordered_flat_set` `x` to an archive (XML archive) `ar`. 87/10000 · 87
360 :1278

	English Requires:;; `value_type` is serializable (XML serializable), and it supports Boost.Serialization `save_construct_data`/`load_construct_data` protocol (automatically suported by https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^] types). 272/10000 · 272
:1284 :1284

	English --- 3/10000 · 3
362 :1286

	English Loading an unordered_flat_set from an archive 45/10000 · 45
363 :1288

	English Deletes all preexisting elements of an `unordered_flat_set` `x` and inserts from an archive (XML archive) `ar` restored copies of the elements of the original `unordered_flat_set` `other` saved to the storage read by `ar`. 222/10000 · 222

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