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| author | Tobias Markmann <tm@ayena.de> | 2014-10-19 20:22:58 (GMT) |
|---|---|---|
| committer | Tobias Markmann <tm@ayena.de> | 2014-10-20 13:49:33 (GMT) |
| commit | 6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch) | |
| tree | 2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/atomic/detail/ops_extending_cas_based.hpp | |
| parent | 38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff) | |
| download | swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.zip swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.tar.bz2 | |
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
Diffstat (limited to '3rdParty/Boost/src/boost/atomic/detail/ops_extending_cas_based.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/atomic/detail/ops_extending_cas_based.hpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/atomic/detail/ops_extending_cas_based.hpp b/3rdParty/Boost/src/boost/atomic/detail/ops_extending_cas_based.hpp new file mode 100644 index 0000000..d7f3c5f --- /dev/null +++ b/3rdParty/Boost/src/boost/atomic/detail/ops_extending_cas_based.hpp @@ -0,0 +1,65 @@ +/* + * 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) + * + * Copyright (c) 2014 Andrey Semashev + */ +/*! + * \file atomic/detail/ops_extending_cas_based.hpp + * + * This header contains a boilerplate of the \c operations template implementation that requires sign/zero extension in arithmetic operations. + */ + +#ifndef BOOST_ATOMIC_DETAIL_OPS_EXTENDING_CAS_BASED_HPP_INCLUDED_ +#define BOOST_ATOMIC_DETAIL_OPS_EXTENDING_CAS_BASED_HPP_INCLUDED_ + +#include <boost/memory_order.hpp> +#include <boost/atomic/detail/config.hpp> +#include <boost/atomic/detail/storage_type.hpp> + +#ifdef BOOST_HAS_PRAGMA_ONCE +#pragma once +#endif + +namespace boost { +namespace atomics { +namespace detail { + +template< typename Base, unsigned int Size, bool Signed > +struct extending_cas_based_operations : + public Base +{ + typedef typename Base::storage_type storage_type; + typedef typename make_storage_type< Size, Signed >::type emulated_storage_type; + + static BOOST_FORCEINLINE storage_type fetch_add(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + storage_type old_val = Base::load(storage, memory_order_relaxed); + emulated_storage_type new_val; + do + { + new_val = static_cast< emulated_storage_type >(old_val) + static_cast< emulated_storage_type >(v); + } + while (!Base::compare_exchange_weak(storage, old_val, static_cast< storage_type >(new_val), order, memory_order_relaxed)); + return old_val; + } + + static BOOST_FORCEINLINE storage_type fetch_sub(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + storage_type old_val = Base::load(storage, memory_order_relaxed); + emulated_storage_type new_val; + do + { + new_val = static_cast< emulated_storage_type >(old_val) - static_cast< emulated_storage_type >(v); + } + while (!Base::compare_exchange_weak(storage, old_val, static_cast< storage_type >(new_val), order, memory_order_relaxed)); + return old_val; + } +}; + +} // namespace detail +} // namespace atomics +} // namespace boost + +#endif // BOOST_ATOMIC_DETAIL_OPS_EXTENDING_CAS_BASED_HPP_INCLUDED_ |