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74 lines
8.7 KiB
74 lines
8.7 KiB
3 years ago
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///////////////////////////////////////////////////////////////////////////////
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/// \file expand_pack.hpp
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/// Contains helpers for pseudo-pack expansion.
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//
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// Copyright 2012 Eric Niebler. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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template<typename Tfx, typename Ret >
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struct expand_pattern_helper<Tfx, Ret()>
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{
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typedef Ret (*type)();
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typedef mpl::bool_< false> applied;
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};
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template<typename Tfx, typename Ret , typename A0>
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struct expand_pattern_helper<Tfx, Ret(A0)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3 , A4)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type , typename expand_pattern_helper<Tfx, A4>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || expand_pattern_helper<Tfx, A4>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3 , A4 , A5)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type , typename expand_pattern_helper<Tfx, A4>::type , typename expand_pattern_helper<Tfx, A5>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || expand_pattern_helper<Tfx, A4>::applied::value || expand_pattern_helper<Tfx, A5>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3 , A4 , A5 , A6)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type , typename expand_pattern_helper<Tfx, A4>::type , typename expand_pattern_helper<Tfx, A5>::type , typename expand_pattern_helper<Tfx, A6>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || expand_pattern_helper<Tfx, A4>::applied::value || expand_pattern_helper<Tfx, A5>::applied::value || expand_pattern_helper<Tfx, A6>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type , typename expand_pattern_helper<Tfx, A4>::type , typename expand_pattern_helper<Tfx, A5>::type , typename expand_pattern_helper<Tfx, A6>::type , typename expand_pattern_helper<Tfx, A7>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || expand_pattern_helper<Tfx, A4>::applied::value || expand_pattern_helper<Tfx, A5>::applied::value || expand_pattern_helper<Tfx, A6>::applied::value || expand_pattern_helper<Tfx, A7>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type , typename expand_pattern_helper<Tfx, A4>::type , typename expand_pattern_helper<Tfx, A5>::type , typename expand_pattern_helper<Tfx, A6>::type , typename expand_pattern_helper<Tfx, A7>::type , typename expand_pattern_helper<Tfx, A8>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || expand_pattern_helper<Tfx, A4>::applied::value || expand_pattern_helper<Tfx, A5>::applied::value || expand_pattern_helper<Tfx, A6>::applied::value || expand_pattern_helper<Tfx, A7>::applied::value || expand_pattern_helper<Tfx, A8>::applied::value || false> applied;
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};
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template<typename Tfx, typename Ret , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
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struct expand_pattern_helper<Tfx, Ret(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9)>
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{
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typedef Ret (*type)(typename expand_pattern_helper<Tfx, A0>::type , typename expand_pattern_helper<Tfx, A1>::type , typename expand_pattern_helper<Tfx, A2>::type , typename expand_pattern_helper<Tfx, A3>::type , typename expand_pattern_helper<Tfx, A4>::type , typename expand_pattern_helper<Tfx, A5>::type , typename expand_pattern_helper<Tfx, A6>::type , typename expand_pattern_helper<Tfx, A7>::type , typename expand_pattern_helper<Tfx, A8>::type , typename expand_pattern_helper<Tfx, A9>::type);
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typedef mpl::bool_<expand_pattern_helper<Tfx, A0>::applied::value || expand_pattern_helper<Tfx, A1>::applied::value || expand_pattern_helper<Tfx, A2>::applied::value || expand_pattern_helper<Tfx, A3>::applied::value || expand_pattern_helper<Tfx, A4>::applied::value || expand_pattern_helper<Tfx, A5>::applied::value || expand_pattern_helper<Tfx, A6>::applied::value || expand_pattern_helper<Tfx, A7>::applied::value || expand_pattern_helper<Tfx, A8>::applied::value || expand_pattern_helper<Tfx, A9>::applied::value || false> applied;
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};
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