Add boost::optional

2026-01-07 23:18:07 +01:00 · 2016-01-25 23:31:44 +00:00 · 2016-01-25 23:31:44 +00:00 · 0482e6b8cb
commit 0482e6b8cb
parent d81b926990
114 changed files with 9062 additions and 0 deletions
--- a/boost/move/utility.hpp
+++ b/boost/move/utility.hpp
@ -0,0 +1,149 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2012-2012.
+// 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/move for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//! \file
+//! This header includes core utilities from <tt><boost/move/utility_core.hpp></tt> and defines
+//! some more advanced utilities such as:
+
+#ifndef BOOST_MOVE_MOVE_UTILITY_HPP
+#define BOOST_MOVE_MOVE_UTILITY_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/move/detail/config_begin.hpp>
+#include <boost/move/utility_core.hpp>
+#include <boost/move/traits.hpp>
+
+#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
+
+   namespace boost {
+
+   //////////////////////////////////////////////////////////////////////////////
+   //
+   //                            move_if_noexcept()
+   //
+   //////////////////////////////////////////////////////////////////////////////
+
+   template <class T>
+   inline typename ::boost::move_detail::enable_if_c
+      < enable_move_utility_emulation<T>::value && !has_move_emulation_enabled<T>::value
+      , typename ::boost::move_detail::add_const<T>::type &
+      >::type
+         move_if_noexcept(T& x) BOOST_NOEXCEPT
+   {
+      return x;
+   }
+
+   template <class T>
+   inline typename ::boost::move_detail::enable_if_c
+      < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
+            && ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, rv<T>&>::type
+         move_if_noexcept(T& x) BOOST_NOEXCEPT
+   {
+      return *static_cast<rv<T>* >(::boost::move_detail::addressof(x));
+   }
+
+   template <class T>
+   inline typename ::boost::move_detail::enable_if_c
+      < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
+            && ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value
+      , rv<T>&
+      >::type
+         move_if_noexcept(rv<T>& x) BOOST_NOEXCEPT
+   {
+      return x;
+   }
+
+   template <class T>
+   inline typename ::boost::move_detail::enable_if_c
+      < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
+            && !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value
+      , typename ::boost::move_detail::add_const<T>::type &
+      >::type
+         move_if_noexcept(T& x) BOOST_NOEXCEPT
+   {
+      return x;
+   }
+
+   template <class T>
+   inline typename ::boost::move_detail::enable_if_c
+      < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
+            && !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value
+      , typename ::boost::move_detail::add_const<T>::type &
+      >::type
+         move_if_noexcept(rv<T>& x) BOOST_NOEXCEPT
+   {
+      return x;
+   }
+
+   }  //namespace boost
+
+#else    //#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
+
+   #if defined(BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE)
+      #include <utility>
+
+      namespace boost{
+
+      using ::std::move_if_noexcept;
+
+      }  //namespace boost
+
+   #else //!BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE
+
+      namespace boost {
+
+      //////////////////////////////////////////////////////////////////////////////
+      //
+      //                            move_if_noexcept()
+      //
+      //////////////////////////////////////////////////////////////////////////////
+      #if defined(BOOST_MOVE_DOXYGEN_INVOKED)
+         //! This function provides a way to convert a reference into a rvalue reference
+         //! in compilers with rvalue references. For other compilers converts T & into
+         //! <i>::boost::rv<T> &</i> so that move emulation is activated. Reference
+         //! would be converted to rvalue reference only if input type is nothrow move
+         //! constructible or if it has no copy constructor. In all other cases const
+         //! reference would be returned
+         template <class T>
+         rvalue_reference_or_const_lvalue_reference move_if_noexcept(input_reference) noexcept;
+
+      #else //BOOST_MOVE_DOXYGEN_INVOKED
+
+         template <class T>
+         typename ::boost::move_detail::enable_if_c
+            < ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, T&&>::type
+               move_if_noexcept(T& x) BOOST_NOEXCEPT
+         {  return ::boost::move(x);   }
+
+         template <class T>
+         typename ::boost::move_detail::enable_if_c
+            < !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, const T&>::type
+               move_if_noexcept(T& x) BOOST_NOEXCEPT
+         {  return x;  }
+
+      #endif //BOOST_MOVE_DOXYGEN_INVOKED
+
+      }  //namespace boost {
+
+   #endif   //#if defined(BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE)
+
+#endif   //BOOST_NO_CXX11_RVALUE_REFERENCES
+
+#include <boost/move/detail/config_end.hpp>
+
+#endif //#ifndef BOOST_MOVE_MOVE_UTILITY_HPP