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authorTobias Markmann <tm@ayena.de>2014-10-19 20:22:58 (GMT)
committerTobias Markmann <tm@ayena.de>2014-10-20 13:49:33 (GMT)
commit6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch)
tree2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/move/traits.hpp
parent38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff)
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Update Boost in 3rdParty to version 1.56.0.
This updates Boost in our 3rdParty directory to version 1.56.0. Updated our update.sh script to stop on error. Changed error reporting in SwiftTools/CrashReporter.cpp to SWIFT_LOG due to missing include of <iostream> with newer Boost. Change-Id: I4b35c77de951333979a524097f35f5f83d325edc
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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2009-2012.
+// 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
+
+#ifndef BOOST_MOVE_MOVE_TRAITS_HPP
+#define BOOST_MOVE_MOVE_TRAITS_HPP
+
+#include <boost/move/detail/config_begin.hpp>
+#include <boost/type_traits/has_trivial_destructor.hpp>
+#include <boost/type_traits/is_nothrow_move_constructible.hpp>
+#include <boost/type_traits/is_nothrow_move_assignable.hpp>
+#include <boost/move/detail/meta_utils.hpp>
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+#include <boost/move/core.hpp>
+#endif
+
+namespace boost {
+
+//! If this trait yields to true
+//! (<i>has_trivial_destructor_after_move &lt;T&gt;::value == true</i>)
+//! means that if T is used as argument of a move construction/assignment,
+//! there is no need to call T's destructor.
+//! This optimization tipically is used to improve containers' performance.
+//!
+//! By default this trait is true if the type has trivial destructor,
+//! every class should specialize this trait if it wants to improve performance
+//! when inserted in containers.
+template <class T>
+struct has_trivial_destructor_after_move
+ : ::boost::has_trivial_destructor<T>
+{};
+
+//! By default this traits returns
+//! <pre>boost::is_nothrow_move_constructible<T>::value && boost::is_nothrow_move_assignable<T>::value </pre>.
+//! Classes with non-throwing move constructor
+//! and assignment can specialize this trait to obtain some performance improvements.
+template <class T>
+struct has_nothrow_move
+ : public ::boost::move_detail::integral_constant
+ < bool
+ , boost::is_nothrow_move_constructible<T>::value &&
+ boost::is_nothrow_move_assignable<T>::value
+ >
+{};
+
+namespace move_detail {
+
+// Code from Jeffrey Lee Hellrung, many thanks
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T> struct forward_type { typedef T type; };
+#else // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T>
+ struct forward_type
+ { typedef const T &type; };
+
+ template< class T>
+ struct forward_type< boost::rv<T> >
+ { typedef T type; };
+#endif // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+
+template< class T > struct is_rvalue_reference : ::boost::move_detail::integral_constant<bool, false> { };
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T > struct is_rvalue_reference< T&& > : ::boost::move_detail::integral_constant<bool, true> { };
+#else // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T > struct is_rvalue_reference< boost::rv<T>& >
+ : ::boost::move_detail::integral_constant<bool, true>
+ {};
+
+ template< class T > struct is_rvalue_reference< const boost::rv<T>& >
+ : ::boost::move_detail::integral_constant<bool, true>
+ {};
+#endif // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T > struct add_rvalue_reference { typedef T&& type; };
+#else // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ namespace detail_add_rvalue_reference
+ {
+ template< class T
+ , bool emulation = ::boost::has_move_emulation_enabled<T>::value
+ , bool rv = ::boost::move_detail::is_rv<T>::value >
+ struct add_rvalue_reference_impl { typedef T type; };
+
+ template< class T, bool emulation>
+ struct add_rvalue_reference_impl< T, emulation, true > { typedef T & type; };
+
+ template< class T, bool rv >
+ struct add_rvalue_reference_impl< T, true, rv > { typedef ::boost::rv<T>& type; };
+ } // namespace detail_add_rvalue_reference
+
+ template< class T >
+ struct add_rvalue_reference
+ : detail_add_rvalue_reference::add_rvalue_reference_impl<T>
+ { };
+
+ template< class T >
+ struct add_rvalue_reference<T &>
+ { typedef T & type; };
+
+#endif // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+
+template< class T > struct remove_rvalue_reference { typedef T type; };
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T > struct remove_rvalue_reference< T&& > { typedef T type; };
+#else // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+ template< class T > struct remove_rvalue_reference< rv<T> > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< const rv<T> > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< volatile rv<T> > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< const volatile rv<T> > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< rv<T>& > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< const rv<T>& > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< volatile rv<T>& > { typedef T type; };
+ template< class T > struct remove_rvalue_reference< const volatile rv<T>& >{ typedef T type; };
+#endif // #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+
+template <typename T>
+typename boost::move_detail::add_rvalue_reference<T>::type declval();
+
+} //move_detail {
+
+// Ideas from Boost.Move review, Jeffrey Lee Hellrung:
+//
+//- TypeTraits metafunctions is_lvalue_reference, add_lvalue_reference, and remove_lvalue_reference ?
+// Perhaps add_reference and remove_reference can be modified so that they behave wrt emulated rvalue
+// references the same as wrt real rvalue references, i.e., add_reference< rv<T>& > -> T& rather than
+// rv<T>& (since T&& & -> T&).
+//
+//- Add'l TypeTraits has_[trivial_]move_{constructor,assign}...?
+//
+//- An as_lvalue(T& x) function, which amounts to an identity operation in C++0x, but strips emulated
+// rvalue references in C++03. This may be necessary to prevent "accidental moves".
+
+
+} //namespace boost {
+
+#include <boost/move/detail/config_end.hpp>
+
+#endif //#ifndef BOOST_MOVE_MOVE_TRAITS_HPP