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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/atomic_template.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/atomic_template.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/atomic/detail/atomic_template.hpp | 774 |
1 files changed, 774 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/atomic/detail/atomic_template.hpp b/3rdParty/Boost/src/boost/atomic/detail/atomic_template.hpp new file mode 100644 index 0000000..4fd6d79 --- /dev/null +++ b/3rdParty/Boost/src/boost/atomic/detail/atomic_template.hpp @@ -0,0 +1,774 @@ +/* + * 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) 2011 Helge Bahmann + * Copyright (c) 2013 Tim Blechmann + * Copyright (c) 2014 Andrey Semashev + */ +/*! + * \file atomic/detail/atomic_template.hpp + * + * This header contains interface definition of \c atomic template. + */ + +#ifndef BOOST_ATOMIC_DETAIL_ATOMIC_TEMPLATE_HPP_INCLUDED_ +#define BOOST_ATOMIC_DETAIL_ATOMIC_TEMPLATE_HPP_INCLUDED_ + +#include <cstddef> +#include <boost/cstdint.hpp> +#include <boost/assert.hpp> +#include <boost/type_traits/is_signed.hpp> +#include <boost/type_traits/is_integral.hpp> +#include <boost/atomic/detail/config.hpp> +#include <boost/atomic/detail/casts.hpp> +#include <boost/atomic/detail/operations_fwd.hpp> + +#ifdef BOOST_HAS_PRAGMA_ONCE +#pragma once +#endif + +#if defined(BOOST_MSVC) +#pragma warning(push) +// 'boost::atomics::atomic<T>' : multiple assignment operators specified +#pragma warning(disable: 4522) +#endif + +/* + * IMPLEMENTATION NOTE: All interface functions MUST be declared with BOOST_FORCEINLINE, + * see comment for convert_memory_order_to_gcc in ops_gcc_atomic.hpp. + */ + +namespace boost { +namespace atomics { +namespace detail { + +BOOST_FORCEINLINE BOOST_CONSTEXPR memory_order deduce_failure_order(memory_order order) BOOST_NOEXCEPT +{ + return order == memory_order_acq_rel ? memory_order_acquire : (order == memory_order_release ? memory_order_relaxed : order); +} + +BOOST_FORCEINLINE BOOST_CONSTEXPR bool cas_failure_order_must_not_be_stronger_than_success_order(memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT +{ + // 15 == (memory_order_seq_cst | memory_order_consume), see memory_order.hpp + // Given the enum values we can test the strength of memory order requirements with this single condition. + return (failure_order & 15u) <= (success_order & 15u); +} + +template< typename T, bool IsInt = boost::is_integral< T >::value > +struct classify +{ + typedef void type; +}; + +template< typename T > +struct classify< T, true > { typedef int type; }; + +template< typename T > +struct classify< T*, false > { typedef void* type; }; + +template< typename T, typename Kind > +class base_atomic; + +//! Implementation for integers +template< typename T > +class base_atomic< T, int > +{ +private: + typedef T value_type; + typedef T difference_type; + typedef atomics::detail::operations< storage_size_of< value_type >::value, boost::is_signed< T >::value > operations; + +protected: + typedef value_type value_arg_type; + +public: + typedef typename operations::storage_type storage_type; + +protected: + storage_type m_storage; + +public: + BOOST_DEFAULTED_FUNCTION(base_atomic(), {}) + BOOST_CONSTEXPR explicit base_atomic(value_type v) BOOST_NOEXCEPT : m_storage(v) {} + + BOOST_FORCEINLINE void store(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_consume); + BOOST_ASSERT(order != memory_order_acquire); + BOOST_ASSERT(order != memory_order_acq_rel); + + operations::store(m_storage, static_cast< storage_type >(v), order); + } + + BOOST_FORCEINLINE value_type load(memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_release); + BOOST_ASSERT(order != memory_order_acq_rel); + + return static_cast< value_type >(operations::load(m_storage, order)); + } + + BOOST_FORCEINLINE value_type fetch_add(difference_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return static_cast< value_type >(operations::fetch_add(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE value_type fetch_sub(difference_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return static_cast< value_type >(operations::fetch_sub(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE value_type exchange(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return static_cast< value_type >(operations::exchange(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = static_cast< storage_type >(expected); + const bool res = operations::compare_exchange_strong(m_storage, old_value, static_cast< storage_type >(desired), success_order, failure_order); + expected = static_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_strong(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = static_cast< storage_type >(expected); + const bool res = operations::compare_exchange_weak(m_storage, old_value, static_cast< storage_type >(desired), success_order, failure_order); + expected = static_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_weak(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE value_type fetch_and(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return static_cast< value_type >(operations::fetch_and(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE value_type fetch_or(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return static_cast< value_type >(operations::fetch_or(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE value_type fetch_xor(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return static_cast< value_type >(operations::fetch_xor(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE bool is_lock_free() const volatile BOOST_NOEXCEPT + { + return operations::is_lock_free(m_storage); + } + + BOOST_FORCEINLINE value_type operator++(int) volatile BOOST_NOEXCEPT + { + return fetch_add(1); + } + + BOOST_FORCEINLINE value_type operator++() volatile BOOST_NOEXCEPT + { + return fetch_add(1) + 1; + } + + BOOST_FORCEINLINE value_type operator--(int) volatile BOOST_NOEXCEPT + { + return fetch_sub(1); + } + + BOOST_FORCEINLINE value_type operator--() volatile BOOST_NOEXCEPT + { + return fetch_sub(1) - 1; + } + + BOOST_FORCEINLINE value_type operator+=(difference_type v) volatile BOOST_NOEXCEPT + { + return fetch_add(v) + v; + } + + BOOST_FORCEINLINE value_type operator-=(difference_type v) volatile BOOST_NOEXCEPT + { + return fetch_sub(v) - v; + } + + BOOST_FORCEINLINE value_type operator&=(value_type v) volatile BOOST_NOEXCEPT + { + return fetch_and(v) & v; + } + + BOOST_FORCEINLINE value_type operator|=(value_type v) volatile BOOST_NOEXCEPT + { + return fetch_or(v) | v; + } + + BOOST_FORCEINLINE value_type operator^=(value_type v) volatile BOOST_NOEXCEPT + { + return fetch_xor(v) ^ v; + } + + BOOST_DELETED_FUNCTION(base_atomic(base_atomic const&)) + BOOST_DELETED_FUNCTION(base_atomic& operator=(base_atomic const&)) +}; + +//! Implementation for bool +template< > +class base_atomic< bool, int > +{ +private: + typedef bool value_type; + typedef atomics::detail::operations< storage_size_of< value_type >::value, false > operations; + +protected: + typedef value_type value_arg_type; + +public: + typedef operations::storage_type storage_type; + +protected: + storage_type m_storage; + +public: + BOOST_DEFAULTED_FUNCTION(base_atomic(), {}) + BOOST_CONSTEXPR explicit base_atomic(value_type v) BOOST_NOEXCEPT : m_storage(v) {} + + BOOST_FORCEINLINE void store(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_consume); + BOOST_ASSERT(order != memory_order_acquire); + BOOST_ASSERT(order != memory_order_acq_rel); + + operations::store(m_storage, static_cast< storage_type >(v), order); + } + + BOOST_FORCEINLINE value_type load(memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_release); + BOOST_ASSERT(order != memory_order_acq_rel); + + return !!operations::load(m_storage, order); + } + + BOOST_FORCEINLINE value_type exchange(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return !!operations::exchange(m_storage, static_cast< storage_type >(v), order); + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = static_cast< storage_type >(expected); + const bool res = operations::compare_exchange_strong(m_storage, old_value, static_cast< storage_type >(desired), success_order, failure_order); + expected = !!old_value; + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_strong(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = static_cast< storage_type >(expected); + const bool res = operations::compare_exchange_weak(m_storage, old_value, static_cast< storage_type >(desired), success_order, failure_order); + expected = !!old_value; + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_weak(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool is_lock_free() const volatile BOOST_NOEXCEPT + { + return operations::is_lock_free(m_storage); + } + + BOOST_DELETED_FUNCTION(base_atomic(base_atomic const&)) + BOOST_DELETED_FUNCTION(base_atomic& operator=(base_atomic const&)) +}; + + +//! Implementation for user-defined types, such as structs and enums +template< typename T > +class base_atomic< T, void > +{ +private: + typedef T value_type; + typedef atomics::detail::operations< storage_size_of< value_type >::value, false > operations; + +protected: + typedef value_type const& value_arg_type; + +public: + typedef typename operations::storage_type storage_type; + +protected: + storage_type m_storage; + +public: + BOOST_FORCEINLINE explicit base_atomic(value_type const& v = value_type()) BOOST_NOEXCEPT : m_storage(atomics::detail::memcpy_cast< storage_type >(v)) + { + } + + BOOST_FORCEINLINE void store(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_consume); + BOOST_ASSERT(order != memory_order_acquire); + BOOST_ASSERT(order != memory_order_acq_rel); + + operations::store(m_storage, atomics::detail::memcpy_cast< storage_type >(v), order); + } + + BOOST_FORCEINLINE value_type load(memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_release); + BOOST_ASSERT(order != memory_order_acq_rel); + + return atomics::detail::memcpy_cast< value_type >(operations::load(m_storage, order)); + } + + BOOST_FORCEINLINE value_type exchange(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::memcpy_cast< value_type >(operations::exchange(m_storage, atomics::detail::memcpy_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = atomics::detail::memcpy_cast< storage_type >(expected); + const bool res = operations::compare_exchange_strong(m_storage, old_value, atomics::detail::memcpy_cast< storage_type >(desired), success_order, failure_order); + expected = atomics::detail::memcpy_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_strong(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = atomics::detail::memcpy_cast< storage_type >(expected); + const bool res = operations::compare_exchange_weak(m_storage, old_value, atomics::detail::memcpy_cast< storage_type >(desired), success_order, failure_order); + expected = atomics::detail::memcpy_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_weak(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool is_lock_free() const volatile BOOST_NOEXCEPT + { + return operations::is_lock_free(m_storage); + } + + BOOST_DELETED_FUNCTION(base_atomic(base_atomic const&)) + BOOST_DELETED_FUNCTION(base_atomic& operator=(base_atomic const&)) +}; + + +//! Implementation for pointers +template< typename T > +class base_atomic< T*, void* > +{ +private: + typedef T* value_type; + typedef std::ptrdiff_t difference_type; + typedef atomics::detail::operations< storage_size_of< value_type >::value, false > operations; + +protected: + typedef value_type value_arg_type; + +public: + typedef typename operations::storage_type storage_type; + +protected: + storage_type m_storage; + +public: + BOOST_DEFAULTED_FUNCTION(base_atomic(), {}) + BOOST_FORCEINLINE explicit base_atomic(value_type const& v) BOOST_NOEXCEPT : m_storage(atomics::detail::union_cast< storage_type >(v)) + { + } + + BOOST_FORCEINLINE void store(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_consume); + BOOST_ASSERT(order != memory_order_acquire); + BOOST_ASSERT(order != memory_order_acq_rel); + + operations::store(m_storage, atomics::detail::union_cast< storage_type >(v), order); + } + + BOOST_FORCEINLINE value_type load(memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_release); + BOOST_ASSERT(order != memory_order_acq_rel); + + return atomics::detail::union_cast< value_type >(operations::load(m_storage, order)); + } + + BOOST_FORCEINLINE value_type fetch_add(difference_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::union_cast< value_type >(operations::fetch_add(m_storage, static_cast< storage_type >(v * sizeof(T)), order)); + } + + BOOST_FORCEINLINE value_type fetch_sub(difference_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::union_cast< value_type >(operations::fetch_sub(m_storage, static_cast< storage_type >(v * sizeof(T)), order)); + } + + BOOST_FORCEINLINE value_type exchange(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::union_cast< value_type >(operations::exchange(m_storage, atomics::detail::union_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = atomics::detail::union_cast< storage_type >(expected); + const bool res = operations::compare_exchange_strong(m_storage, old_value, atomics::detail::union_cast< storage_type >(desired), success_order, failure_order); + expected = atomics::detail::union_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_strong(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = atomics::detail::union_cast< storage_type >(expected); + const bool res = operations::compare_exchange_weak(m_storage, old_value, atomics::detail::union_cast< storage_type >(desired), success_order, failure_order); + expected = atomics::detail::union_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_weak(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool is_lock_free() const volatile BOOST_NOEXCEPT + { + return operations::is_lock_free(m_storage); + } + + BOOST_FORCEINLINE value_type operator++(int) volatile BOOST_NOEXCEPT + { + return fetch_add(1); + } + + BOOST_FORCEINLINE value_type operator++() volatile BOOST_NOEXCEPT + { + return fetch_add(1) + 1; + } + + BOOST_FORCEINLINE value_type operator--(int) volatile BOOST_NOEXCEPT + { + return fetch_sub(1); + } + + BOOST_FORCEINLINE value_type operator--() volatile BOOST_NOEXCEPT + { + return fetch_sub(1) - 1; + } + + BOOST_FORCEINLINE value_type operator+=(difference_type v) volatile BOOST_NOEXCEPT + { + return fetch_add(v) + v; + } + + BOOST_FORCEINLINE value_type operator-=(difference_type v) volatile BOOST_NOEXCEPT + { + return fetch_sub(v) - v; + } + + BOOST_DELETED_FUNCTION(base_atomic(base_atomic const&)) + BOOST_DELETED_FUNCTION(base_atomic& operator=(base_atomic const&)) +}; + + +//! Implementation for void pointers +template< > +class base_atomic< void*, void* > +{ +private: + typedef void* value_type; + typedef std::ptrdiff_t difference_type; + typedef atomics::detail::operations< storage_size_of< value_type >::value, false > operations; + +protected: + typedef value_type value_arg_type; + +public: + typedef operations::storage_type storage_type; + +protected: + storage_type m_storage; + +public: + BOOST_DEFAULTED_FUNCTION(base_atomic(), {}) + BOOST_FORCEINLINE explicit base_atomic(value_type const& v) BOOST_NOEXCEPT : m_storage(atomics::detail::union_cast< storage_type >(v)) + { + } + + BOOST_FORCEINLINE void store(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_consume); + BOOST_ASSERT(order != memory_order_acquire); + BOOST_ASSERT(order != memory_order_acq_rel); + + operations::store(m_storage, atomics::detail::union_cast< storage_type >(v), order); + } + + BOOST_FORCEINLINE value_type load(memory_order order = memory_order_seq_cst) const volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(order != memory_order_release); + BOOST_ASSERT(order != memory_order_acq_rel); + + return atomics::detail::union_cast< value_type >(operations::load(m_storage, order)); + } + + BOOST_FORCEINLINE value_type fetch_add(difference_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::union_cast< value_type >(operations::fetch_add(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE value_type fetch_sub(difference_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::union_cast< value_type >(operations::fetch_sub(m_storage, static_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE value_type exchange(value_type v, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return atomics::detail::union_cast< value_type >(operations::exchange(m_storage, atomics::detail::union_cast< storage_type >(v), order)); + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = atomics::detail::union_cast< storage_type >(expected); + const bool res = operations::compare_exchange_strong(m_storage, old_value, atomics::detail::union_cast< storage_type >(desired), success_order, failure_order); + expected = atomics::detail::union_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_strong(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_strong(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order success_order, memory_order failure_order) volatile BOOST_NOEXCEPT + { + BOOST_ASSERT(failure_order != memory_order_release); + BOOST_ASSERT(failure_order != memory_order_acq_rel); + BOOST_ASSERT(cas_failure_order_must_not_be_stronger_than_success_order(success_order, failure_order)); + + storage_type old_value = atomics::detail::union_cast< storage_type >(expected); + const bool res = operations::compare_exchange_weak(m_storage, old_value, atomics::detail::union_cast< storage_type >(desired), success_order, failure_order); + expected = atomics::detail::union_cast< value_type >(old_value); + return res; + } + + BOOST_FORCEINLINE bool compare_exchange_weak(value_type& expected, value_type desired, memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT + { + return compare_exchange_weak(expected, desired, order, atomics::detail::deduce_failure_order(order)); + } + + BOOST_FORCEINLINE bool is_lock_free() const volatile BOOST_NOEXCEPT + { + return operations::is_lock_free(m_storage); + } + + BOOST_FORCEINLINE value_type operator++(int) volatile BOOST_NOEXCEPT + { + return fetch_add(1); + } + + BOOST_FORCEINLINE value_type operator++() volatile BOOST_NOEXCEPT + { + return (char*)fetch_add(1) + 1; + } + + BOOST_FORCEINLINE value_type operator--(int) volatile BOOST_NOEXCEPT + { + return fetch_sub(1); + } + + BOOST_FORCEINLINE value_type operator--() volatile BOOST_NOEXCEPT + { + return (char*)fetch_sub(1) - 1; + } + + BOOST_FORCEINLINE value_type operator+=(difference_type v) volatile BOOST_NOEXCEPT + { + return (char*)fetch_add(v) + v; + } + + BOOST_FORCEINLINE value_type operator-=(difference_type v) volatile BOOST_NOEXCEPT + { + return (char*)fetch_sub(v) - v; + } + + BOOST_DELETED_FUNCTION(base_atomic(base_atomic const&)) + BOOST_DELETED_FUNCTION(base_atomic& operator=(base_atomic const&)) +}; + +} // namespace detail + +template< typename T > +class atomic : + public atomics::detail::base_atomic< T, typename atomics::detail::classify< T >::type > +{ +private: + typedef T value_type; + typedef atomics::detail::base_atomic< T, typename atomics::detail::classify< T >::type > base_type; + typedef typename base_type::value_arg_type value_arg_type; + +public: + typedef typename base_type::storage_type storage_type; + +public: + BOOST_DEFAULTED_FUNCTION(atomic(), BOOST_NOEXCEPT {}) + + // NOTE: The constructor is made explicit because gcc 4.7 complains that + // operator=(value_arg_type) is considered ambiguous with operator=(atomic const&) + // in assignment expressions, even though conversion to atomic<> is less preferred + // than conversion to value_arg_type. + BOOST_FORCEINLINE explicit BOOST_CONSTEXPR atomic(value_arg_type v) BOOST_NOEXCEPT : base_type(v) {} + + BOOST_FORCEINLINE value_type operator= (value_arg_type v) volatile BOOST_NOEXCEPT + { + this->store(v); + return v; + } + + BOOST_FORCEINLINE operator value_type() volatile const BOOST_NOEXCEPT + { + return this->load(); + } + + BOOST_FORCEINLINE storage_type& storage() BOOST_NOEXCEPT { return this->m_storage; } + BOOST_FORCEINLINE storage_type volatile& storage() volatile BOOST_NOEXCEPT { return this->m_storage; } + BOOST_FORCEINLINE storage_type const& storage() const BOOST_NOEXCEPT { return this->m_storage; } + BOOST_FORCEINLINE storage_type const volatile& storage() const volatile BOOST_NOEXCEPT { return this->m_storage; } + + BOOST_DELETED_FUNCTION(atomic(atomic const&)) + BOOST_DELETED_FUNCTION(atomic& operator= (atomic const&)) + BOOST_DELETED_FUNCTION(atomic& operator= (atomic const&) volatile) +}; + +typedef atomic< char > atomic_char; +typedef atomic< unsigned char > atomic_uchar; +typedef atomic< signed char > atomic_schar; +typedef atomic< uint8_t > atomic_uint8_t; +typedef atomic< int8_t > atomic_int8_t; +typedef atomic< unsigned short > atomic_ushort; +typedef atomic< short > atomic_short; +typedef atomic< uint16_t > atomic_uint16_t; +typedef atomic< int16_t > atomic_int16_t; +typedef atomic< unsigned int > atomic_uint; +typedef atomic< int > atomic_int; +typedef atomic< uint32_t > atomic_uint32_t; +typedef atomic< int32_t > atomic_int32_t; +typedef atomic< unsigned long > atomic_ulong; +typedef atomic< long > atomic_long; +typedef atomic< uint64_t > atomic_uint64_t; +typedef atomic< int64_t > atomic_int64_t; +#ifdef BOOST_HAS_LONG_LONG +typedef atomic< boost::ulong_long_type > atomic_ullong; +typedef atomic< boost::long_long_type > atomic_llong; +#endif +typedef atomic< void* > atomic_address; +typedef atomic< bool > atomic_bool; +typedef atomic< wchar_t > atomic_wchar_t; +#if !defined(BOOST_NO_CXX11_CHAR16_T) +typedef atomic< char16_t > atomic_char16_t; +#endif +#if !defined(BOOST_NO_CXX11_CHAR32_T) +typedef atomic< char32_t > atomic_char32_t; +#endif + +typedef atomic< int_least8_t > atomic_int_least8_t; +typedef atomic< uint_least8_t > atomic_uint_least8_t; +typedef atomic< int_least16_t > atomic_int_least16_t; +typedef atomic< uint_least16_t > atomic_uint_least16_t; +typedef atomic< int_least32_t > atomic_int_least32_t; +typedef atomic< uint_least32_t > atomic_uint_least32_t; +typedef atomic< int_least64_t > atomic_int_least64_t; +typedef atomic< uint_least64_t > atomic_uint_least64_t; +typedef atomic< int_fast8_t > atomic_int_fast8_t; +typedef atomic< uint_fast8_t > atomic_uint_fast8_t; +typedef atomic< int_fast16_t > atomic_int_fast16_t; +typedef atomic< uint_fast16_t > atomic_uint_fast16_t; +typedef atomic< int_fast32_t > atomic_int_fast32_t; +typedef atomic< uint_fast32_t > atomic_uint_fast32_t; +typedef atomic< int_fast64_t > atomic_int_fast64_t; +typedef atomic< uint_fast64_t > atomic_uint_fast64_t; +typedef atomic< intmax_t > atomic_intmax_t; +typedef atomic< uintmax_t > atomic_uintmax_t; + +typedef atomic< std::size_t > atomic_size_t; +typedef atomic< std::ptrdiff_t > atomic_ptrdiff_t; + +#if defined(BOOST_HAS_INTPTR_T) +typedef atomic< intptr_t > atomic_intptr_t; +typedef atomic< uintptr_t > atomic_uintptr_t; +#endif + +} // namespace atomics +} // namespace boost + +#if defined(BOOST_MSVC) +#pragma warning(pop) +#endif + +#endif // BOOST_ATOMIC_DETAIL_ATOMIC_TEMPLATE_HPP_INCLUDED_ |