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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#pragma once
#if !defined(RXCPP_SOURCES_RX_NEVER_HPP)
#define RXCPP_SOURCES_RX_NEVER_HPP
#include "../rx-includes.hpp"
/*! \file rx-never.hpp
\brief Returns an observable that never sends any items or notifications to observer.
\tparam T the type of (not) emitted items
\return Observable that never sends any items or notifications to observer.
\sample
\snippet never.cpp never sample
\snippet output.txt never sample
*/
namespace rxcpp {
namespace sources {
namespace detail {
template<class T>
struct never : public source_base<T>
{
template<class Subscriber>
void on_subscribe(Subscriber) const {
}
};
}
/*! @copydoc rx-never.hpp
*/
template<class T>
auto never()
-> observable<T, detail::never<T>> {
return observable<T, detail::never<T>>(detail::never<T>());
}
}
}
#endif
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