61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
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// Copyright (C) 2012 Vicente J. Botet Escriba
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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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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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// The make_tuple_indices code is based on the one from libcxx.
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//===----------------------------------------------------------------------===//
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#ifndef BOOST_THREAD_DETAIL_MAKE_TUPLE_INDICES_HPP
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#define BOOST_THREAD_DETAIL_MAKE_TUPLE_INDICES_HPP
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#include <boost/config.hpp>
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#include <boost/static_assert.hpp>
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namespace boost
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{
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namespace detail
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{
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#if ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
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! defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
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// make_tuple_indices
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template <std::size_t...> struct tuple_indices
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{};
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template <std::size_t Sp, class IntTuple, std::size_t Ep>
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struct make_indices_imp;
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template <std::size_t Sp, std::size_t ...Indices, std::size_t Ep>
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struct make_indices_imp<Sp, tuple_indices<Indices...>, Ep>
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{
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typedef typename make_indices_imp<Sp+1, tuple_indices<Indices..., Sp>, Ep>::type type;
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};
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template <std::size_t Ep, std::size_t ...Indices>
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struct make_indices_imp<Ep, tuple_indices<Indices...>, Ep>
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{
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typedef tuple_indices<Indices...> type;
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};
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template <std::size_t Ep, std::size_t Sp = 0>
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struct make_tuple_indices
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{
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BOOST_STATIC_ASSERT_MSG(Sp <= Ep, "make_tuple_indices input error");
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typedef typename make_indices_imp<Sp, tuple_indices<>, Ep>::type type;
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};
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#endif
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}
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}
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#endif // header
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