mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
257 lines
9.9 KiB
C++
257 lines
9.9 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2017 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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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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#ifndef SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
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#define SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
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#include <sprout/config.hpp>
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#include <sprout/type_traits/integral_constant.hpp>
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namespace sprout {
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//
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// placeholder
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//
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template<int N>
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struct placeholder {};
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//
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// positional_placeholder
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//
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struct positional_placeholder {
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public:
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template<int N>
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SPROUT_CONSTEXPR operator sprout::placeholder<N>() const {
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return sprout::placeholder<N>();
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}
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};
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//
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// variadic_placeholder
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//
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template<int N>
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struct variadic_placeholder {};
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namespace placeholders {
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namespace {
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<1> _1 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<2> _2 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<3> _3 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<4> _4 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<5> _5 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<6> _6 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<7> _7 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<8> _8 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<9> _9 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<10> _10 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<11> _11 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<12> _12 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<13> _13 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<14> _14 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<15> _15 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<16> _16 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<17> _17 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<18> _18 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<19> _19 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<20> _20 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<21> _21 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<22> _22 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<23> _23 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<24> _24 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<25> _25 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<26> _26 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<27> _27 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<28> _28 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<29> _29 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<30> _30 = {};
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SPROUT_STATIC_CONSTEXPR sprout::positional_placeholder _ = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<0> _va = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<1> _1tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<2> _2tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<3> _3tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<4> _4tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<5> _5tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<6> _6tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<7> _7tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<8> _8tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<9> _9tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<10> _10tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<11> _11tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<12> _12tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<13> _13tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<14> _14tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<15> _15tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<16> _16tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<17> _17tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<18> _18tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<19> _19tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<20> _20tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<21> _21tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<22> _22tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<23> _23tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<24> _24tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<25> _25tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<26> _26tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<27> _27tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<28> _28tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<29> _29tail = {};
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SPROUT_STATIC_CONSTEXPR sprout::variadic_placeholder<30> _30tail = {};
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} // anonymous-namespace
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} // namespace placeholders
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using sprout::placeholders::_1;
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using sprout::placeholders::_2;
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using sprout::placeholders::_3;
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using sprout::placeholders::_4;
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using sprout::placeholders::_5;
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using sprout::placeholders::_6;
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using sprout::placeholders::_7;
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using sprout::placeholders::_8;
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using sprout::placeholders::_9;
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using sprout::placeholders::_10;
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using sprout::placeholders::_11;
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using sprout::placeholders::_12;
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using sprout::placeholders::_13;
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using sprout::placeholders::_14;
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using sprout::placeholders::_15;
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using sprout::placeholders::_16;
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using sprout::placeholders::_17;
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using sprout::placeholders::_18;
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using sprout::placeholders::_19;
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using sprout::placeholders::_20;
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using sprout::placeholders::_21;
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using sprout::placeholders::_22;
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using sprout::placeholders::_23;
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using sprout::placeholders::_24;
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using sprout::placeholders::_25;
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using sprout::placeholders::_26;
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using sprout::placeholders::_27;
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using sprout::placeholders::_28;
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using sprout::placeholders::_29;
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using sprout::placeholders::_30;
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using sprout::placeholders::_;
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using sprout::placeholders::_va;
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using sprout::placeholders::_1tail;
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using sprout::placeholders::_2tail;
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using sprout::placeholders::_3tail;
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using sprout::placeholders::_4tail;
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using sprout::placeholders::_5tail;
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using sprout::placeholders::_6tail;
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using sprout::placeholders::_7tail;
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using sprout::placeholders::_8tail;
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using sprout::placeholders::_9tail;
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using sprout::placeholders::_10tail;
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using sprout::placeholders::_11tail;
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using sprout::placeholders::_12tail;
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using sprout::placeholders::_13tail;
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using sprout::placeholders::_14tail;
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using sprout::placeholders::_15tail;
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using sprout::placeholders::_16tail;
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using sprout::placeholders::_17tail;
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using sprout::placeholders::_18tail;
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using sprout::placeholders::_19tail;
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using sprout::placeholders::_20tail;
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using sprout::placeholders::_21tail;
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using sprout::placeholders::_22tail;
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using sprout::placeholders::_23tail;
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using sprout::placeholders::_24tail;
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using sprout::placeholders::_25tail;
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using sprout::placeholders::_26tail;
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using sprout::placeholders::_27tail;
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using sprout::placeholders::_28tail;
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using sprout::placeholders::_29tail;
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using sprout::placeholders::_30tail;
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//
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// is_placeholder
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//
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template<typename T>
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struct is_placeholder
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: public sprout::integral_constant<int, 0>
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{};
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template<typename T>
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struct is_placeholder<T const>
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: public sprout::is_placeholder<T>
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{};
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template<typename T>
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struct is_placeholder<T volatile>
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: public sprout::is_placeholder<T>
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{};
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template<typename T>
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struct is_placeholder<T const volatile>
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: public sprout::is_placeholder<T>
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{};
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template<int N>
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struct is_placeholder<sprout::placeholder<N> >
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: public sprout::integral_constant<int, N>
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{};
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#if SPROUT_USE_VARIABLE_TEMPLATES
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template<typename T>
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SPROUT_STATIC_CONSTEXPR bool is_placeholder_v = sprout::is_placeholder<T>::value;
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#endif // #if SPROUT_USE_VARIABLE_TEMPLATES
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//
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// is_positional_placeholder
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//
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template<typename T>
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struct is_positional_placeholder
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: public sprout::integral_constant<int, 0>
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{};
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template<typename T>
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struct is_positional_placeholder<T const>
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: public sprout::is_positional_placeholder<T>
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{};
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template<typename T>
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struct is_positional_placeholder<T volatile>
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: public sprout::is_positional_placeholder<T>
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{};
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template<typename T>
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struct is_positional_placeholder<T const volatile>
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: public sprout::is_positional_placeholder<T>
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{};
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template<>
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struct is_positional_placeholder<sprout::positional_placeholder>
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: public sprout::integral_constant<int, 1>
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{};
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#if SPROUT_USE_VARIABLE_TEMPLATES
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template<typename T>
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SPROUT_STATIC_CONSTEXPR bool is_positional_placeholder_v = sprout::is_positional_placeholder<T>::value;
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#endif // #if SPROUT_USE_VARIABLE_TEMPLATES
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//
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// is_variadic_placeholder
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//
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template<typename T>
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struct is_variadic_placeholder
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: public sprout::integral_constant<int, 0>
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{};
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template<typename T>
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struct is_variadic_placeholder<T const>
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: public sprout::is_variadic_placeholder<T>
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{};
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template<typename T>
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struct is_variadic_placeholder<T volatile>
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: public sprout::is_variadic_placeholder<T>
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{};
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template<typename T>
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struct is_variadic_placeholder<T const volatile>
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: public sprout::is_variadic_placeholder<T>
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{};
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template<int N>
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struct is_variadic_placeholder<sprout::variadic_placeholder<N> >
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: public sprout::integral_constant<int, N + 1>
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{};
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#if SPROUT_USE_VARIABLE_TEMPLATES
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template<typename T>
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SPROUT_STATIC_CONSTEXPR bool is_variadic_placeholder_v = sprout::is_variadic_placeholder<T>::value;
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#endif // #if SPROUT_USE_VARIABLE_TEMPLATES
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} // namespace sprout
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#endif // #ifndef SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
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