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winrt::single_threaded_observable_map function template (C++/WinRT)

  • Článek

A function template that creates and returns an object of a type that implements an observable associative collection (map). The object is returned as an IObservableMap, and that's the interface via which you call the returned object's functions and properties.

You can optionally pass an existing std::map or std::unordered_map rvalue into the function—either pass a temporary object, or call std::move on an lvalue.

For more info, and code examples, see Collections with C++/WinRT.

Syntax

template <typename K, typename V, typename Compare = std::less<K>, typename Allocator = std::allocator<std::pair<K const, V>>>
winrt::Windows::Foundation::Collections::IObservableMap<K, V> single_threaded_observable_map()

template <typename K, typename V, typename Compare = std::less<K>, typename Allocator = std::allocator<std::pair<K const, V>>>
winrt::Windows::Foundation::Collections::IObservableMap<K, V> single_threaded_observable_map(std::map<K, V, Compare, Allocator>&& values)

template <typename K, typename V, typename Hash = std::hash<K>, typename KeyEqual = std::equal_to<K>, typename Allocator = std::allocator<std::pair<K const, V>>>
winrt::Windows::Foundation::Collections::IObservableMap<K, V> single_threaded_observable_map(std::unordered_map<K, V, Hash, KeyEqual, Allocator>&& values)

Template parameters

typename K The type of the keys in the collection.

typename V The type of the values in the collection.

typename Compare The type of the comparator to use to compare keys.

typename Allocator The type of the allocator of the associative container from which you initialize the collection, if you pass one, otherwise the default allocator.

Parameters

values An optional reference to an rvalue of type std::map or std::unordered_map from which to initialize the elements of the collection object.

Return value

An IObservableMap representing a new collection object.

Requirements

Minimum supported SDK: Windows SDK version 10.0.17763.0 (Windows 10, version 1809)

Namespace: winrt

Header: %WindowsSdkDir%Include<WindowsTargetPlatformVersion>\cppwinrt\winrt\base.h (included by default)

See also