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53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
// The MIT License (MIT)
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// Copyright (c) 2013 Danny Y., Rapptz
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SOL_TUPLE_HPP
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#define SOL_TUPLE_HPP
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#include <tuple>
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#include <cstddef>
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namespace sol {
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namespace detail {
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template<size_t... Ns>
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struct indices {};
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template<size_t N, size_t... Ns>
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struct build_indices : build_indices<N-1, N-1, Ns...> {};
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template<size_t... Ns>
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struct build_indices<0, Ns...> : indices<Ns...> {};
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using std::get;
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template<typename Function, typename Tuple, size_t... Indices>
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inline auto call(Function f, const Tuple& t, indices<Indices...>) -> decltype(f(get<Indices>(t)...)) {
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return f(get<Indices>(t)...);
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}
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} // detail
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template<typename Function, typename... Args>
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inline auto call(Function f, const std::tuple<Args...>& t) -> decltype(detail::call(f, t, detail::build_indices<sizeof...(Args)>{})) {
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return call(f, t, detail::build_indices<sizeof...(Args)>{});
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}
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} // sol
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#endif // SOL_TUPLE_HPP
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