40 lines
830 B
C++
40 lines
830 B
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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namespace td {
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namespace detail {
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template <class... Fs>
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struct overload;
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template <class F>
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struct overload<F> : public F {
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explicit overload(F f) : F(f) {
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}
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};
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template <class F, class... Fs>
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struct overload<F, Fs...>
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: public overload<F>
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, overload<Fs...> {
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overload(F f, Fs... fs) : overload<F>(f), overload<Fs...>(fs...) {
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}
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using overload<F>::operator();
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using overload<Fs...>::operator();
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};
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} // namespace detail
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template <class... F>
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auto overloaded(F... f) {
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return detail::overload<F...>(f...);
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}
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} // namespace td
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