allocator_type begin begin bucket bucket_count bucket_size cbegin cend clear clear const_iterator const_pointer const_reference contains contains count count createDeviceObject createDeviceObject destroyDeviceObject destroyDeviceObject device_range device_range device_range device_range difference_type emplace empty empty end end erase erase erase find find find find full full get_allocator hash_function hasher index_type insert insert insert iterator key_eq key_equal key_type load_factor load_factor mapped_type max_load_factor max_size pointer reference size size unordered_map valid valid value_type

count() [1/2] template<typename Key , typename T , typename Hash = hash<Key>, typename KeyEqual = equal_to<Key>, typename Allocator = safe_device_allocator<pair<const Key, T>>> STDGPU_DEVICE_ONLY index_type stdgpu::unordered_map< Key, T, Hash, KeyEqual, Allocator >::count ( const key_type &  key ) const Returns the number of elements with the given key in the container. Parameters [in] key The key Returns The number of elements with the given key, i.e. 1 or 0