整理

include/boost/bind/placeholders.hpp

@@ -0,0 +1,61 @@
+#ifndef BOOST_BIND_PLACEHOLDERS_HPP_INCLUDED
+#define BOOST_BIND_PLACEHOLDERS_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  bind/placeholders.hpp - _N definitions
+//
+//  Copyright 2002, 2015, 2024 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+//
+//  See http://www.boost.org/libs/bind for documentation.
+//
+
+#include <boost/bind/arg.hpp>
+#include <boost/config.hpp>
+
+namespace boost
+{
+
+namespace placeholders
+{
+
+#if !defined(BOOST_NO_CXX17_INLINE_VARIABLES)
+
+BOOST_INLINE_CONSTEXPR boost::arg<1> _1;
+BOOST_INLINE_CONSTEXPR boost::arg<2> _2;
+BOOST_INLINE_CONSTEXPR boost::arg<3> _3;
+BOOST_INLINE_CONSTEXPR boost::arg<4> _4;
+BOOST_INLINE_CONSTEXPR boost::arg<5> _5;
+BOOST_INLINE_CONSTEXPR boost::arg<6> _6;
+BOOST_INLINE_CONSTEXPR boost::arg<7> _7;
+BOOST_INLINE_CONSTEXPR boost::arg<8> _8;
+BOOST_INLINE_CONSTEXPR boost::arg<9> _9;
+
+#else
+
+BOOST_STATIC_CONSTEXPR boost::arg<1> _1;
+BOOST_STATIC_CONSTEXPR boost::arg<2> _2;
+BOOST_STATIC_CONSTEXPR boost::arg<3> _3;
+BOOST_STATIC_CONSTEXPR boost::arg<4> _4;
+BOOST_STATIC_CONSTEXPR boost::arg<5> _5;
+BOOST_STATIC_CONSTEXPR boost::arg<6> _6;
+BOOST_STATIC_CONSTEXPR boost::arg<7> _7;
+BOOST_STATIC_CONSTEXPR boost::arg<8> _8;
+BOOST_STATIC_CONSTEXPR boost::arg<9> _9;
+
+#endif
+
+} // namespace placeholders
+
+} // namespace boost
+
+#endif // #ifndef BOOST_BIND_PLACEHOLDERS_HPP_INCLUDED