Sprout/sprout/functional/bind/placeholder.hpp
2013-07-07 19:10:25 +09:00

104 lines
3.8 KiB
C++

#ifndef SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
#define SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
#include <type_traits>
#include <sprout/config.hpp>
namespace sprout {
//
// placeholder
//
template<int N>
struct placeholder {};
namespace placeholders {
namespace {
SPROUT_STATIC_CONSTEXPR sprout::placeholder<1> _1 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<2> _2 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<3> _3 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<4> _4 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<5> _5 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<6> _6 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<7> _7 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<8> _8 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<9> _9 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<10> _10 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<11> _11 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<12> _12 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<13> _13 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<14> _14 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<15> _15 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<16> _16 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<17> _17 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<18> _18 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<19> _19 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<20> _20 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<21> _21 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<22> _22 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<23> _23 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<24> _24 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<25> _25 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<26> _26 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<27> _27 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<28> _28 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<29> _29 = {};
SPROUT_STATIC_CONSTEXPR sprout::placeholder<30> _30 = {};
} // anonymous-namespace
} // namespace placeholders
using sprout::placeholders::_1;
using sprout::placeholders::_2;
using sprout::placeholders::_3;
using sprout::placeholders::_4;
using sprout::placeholders::_5;
using sprout::placeholders::_6;
using sprout::placeholders::_7;
using sprout::placeholders::_8;
using sprout::placeholders::_9;
using sprout::placeholders::_10;
using sprout::placeholders::_11;
using sprout::placeholders::_12;
using sprout::placeholders::_13;
using sprout::placeholders::_14;
using sprout::placeholders::_15;
using sprout::placeholders::_16;
using sprout::placeholders::_17;
using sprout::placeholders::_18;
using sprout::placeholders::_19;
using sprout::placeholders::_20;
using sprout::placeholders::_21;
using sprout::placeholders::_2;
using sprout::placeholders::_23;
using sprout::placeholders::_24;
using sprout::placeholders::_25;
using sprout::placeholders::_26;
using sprout::placeholders::_27;
using sprout::placeholders::_28;
using sprout::placeholders::_29;
using sprout::placeholders::_30;
//
// is_placeholder
//
template<typename T>
struct is_placeholder
: public std::integral_constant<int, 0>
{};
template<typename T>
struct is_placeholder<T const>
: public sprout::is_placeholder<T>
{};
template<typename T>
struct is_placeholder<T volatile>
: public sprout::is_placeholder<T>
{};
template<typename T>
struct is_placeholder<T const volatile>
: public sprout::is_placeholder<T>
{};
template<int N>
struct is_placeholder<sprout::placeholder<N> >
: public std::integral_constant<int, N>
{};
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP