feat():initial version

install/boost_1_75_0/include/boost/tuple/tuple.hpp

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+//  tuple.hpp - Boost Tuple Library --------------------------------------
+
+// Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
+//
+// 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)
+
+// For more information, see http://www.boost.org
+
+// -----------------------------------------------------------------
+
+#ifndef BOOST_TUPLE_HPP
+#define BOOST_TUPLE_HPP
+
+#if defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730
+// Work around a compiler bug.
+// boost::python::tuple has to be seen by the compiler before the
+// boost::tuple class template.
+namespace boost { namespace python { class tuple; }}
+#endif
+
+#include <boost/config.hpp>
+#include <boost/static_assert.hpp>
+
+// other compilers
+#include <boost/ref.hpp>
+#include <boost/tuple/detail/tuple_basic.hpp>
+
+
+namespace boost {
+
+using tuples::tuple;
+using tuples::make_tuple;
+using tuples::tie;
+#if !defined(BOOST_NO_USING_TEMPLATE)
+using tuples::get;
+#else
+//
+// The "using tuples::get" statement causes the
+// Borland compiler to ICE, use forwarding
+// functions instead:
+//
+template<int N, class HT, class TT>
+inline typename tuples::access_traits<
+                  typename tuples::element<N, tuples::cons<HT, TT> >::type
+                >::non_const_type
+get(tuples::cons<HT, TT>& c) {
+  return tuples::get<N,HT,TT>(c);
+}
+// get function for const cons-lists, returns a const reference to
+// the element. If the element is a reference, returns the reference
+// as such (that is, can return a non-const reference)
+template<int N, class HT, class TT>
+inline typename tuples::access_traits<
+                  typename tuples::element<N, tuples::cons<HT, TT> >::type
+                >::const_type
+get(const tuples::cons<HT, TT>& c) {
+  return tuples::get<N,HT,TT>(c);
+}
+
+#endif // BOOST_NO_USING_TEMPLATE
+
+} // end namespace boost
+
+#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
+
+#include <tuple>
+#include <cstddef>
+
+namespace std
+{
+
+#if defined(BOOST_CLANG)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wmismatched-tags"
+#endif
+
+// std::tuple_size
+
+template<class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10>
+    class tuple_size< boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >:
+        public boost::tuples::length< boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >
+{
+};
+
+template<class H, class T> class tuple_size< boost::tuples::cons<H, T> >:
+    public boost::tuples::length< boost::tuples::cons<H, T> >
+{
+};
+
+template<> class tuple_size< boost::tuples::null_type >:
+    public boost::tuples::length< boost::tuples::null_type >
+{
+};
+
+// std::tuple_element
+
+template<std::size_t I, class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10>
+    class tuple_element< I, boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >:
+        public boost::tuples::element< I, boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >
+{
+};
+
+template<std::size_t I, class H, class T> class tuple_element< I, boost::tuples::cons<H, T> >:
+    public boost::tuples::element< I, boost::tuples::cons<H, T> >
+{
+};
+
+#if defined(BOOST_CLANG)
+# pragma clang diagnostic pop
+#endif
+
+} // namespace std
+
+#endif // !defined(BOOST_NO_CXX11_HDR_TUPLE)
+
+#endif // BOOST_TUPLE_HPP