54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
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#pragma once
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#if !defined(RXCPP_SOURCES_RX_EMPTY_HPP)
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#define RXCPP_SOURCES_RX_EMPTY_HPP
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#include "../rx-includes.hpp"
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/*! \file rx-empty.hpp
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\brief Returns an observable that sends no items to observer and immediately completes, on the specified scheduler.
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\tparam T the type of (not) emitted items
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\tparam Coordination the type of the scheduler (optional)
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\param cn the scheduler to use for scheduling the items (optional)
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\return Observable that sends no items to observer and immediately completes.
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\sample
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\snippet empty.cpp empty sample
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\snippet output.txt empty sample
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\sample
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\snippet empty.cpp threaded empty sample
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\snippet output.txt threaded empty sample
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*/
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namespace rxcpp {
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namespace sources {
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/*! @copydoc rx-empty.hpp
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*/
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template<class T>
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auto empty()
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-> decltype(from<T>()) {
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return from<T>();
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}
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/*! @copydoc rx-empty.hpp
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*/
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template<class T, class Coordination>
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auto empty(Coordination cn)
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-> decltype(from<T>(std::move(cn))) {
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return from<T>(std::move(cn));
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}
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}
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}
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#endif
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