整理

include/boost/atomic/detail/extra_ops_msvc_arm.hpp

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+/*
+ * 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) 2017-2025 Andrey Semashev
+ */
+/*!
+ * \file   atomic/detail/extra_ops_msvc_arm.hpp
+ *
+ * This header contains implementation of the extra atomic operations for ARM.
+ */
+
+#ifndef BOOST_ATOMIC_DETAIL_EXTRA_OPS_MSVC_ARM_HPP_INCLUDED_
+#define BOOST_ATOMIC_DETAIL_EXTRA_OPS_MSVC_ARM_HPP_INCLUDED_
+
+#include <cstddef>
+#include <boost/memory_order.hpp>
+#include <boost/atomic/detail/config.hpp>
+#include <boost/atomic/detail/interlocked.hpp>
+#include <boost/atomic/detail/storage_traits.hpp>
+#include <boost/atomic/detail/extra_operations_fwd.hpp>
+#include <boost/atomic/detail/extra_ops_generic.hpp>
+#include <boost/atomic/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+namespace atomics {
+namespace detail {
+
+#if defined(BOOST_ATOMIC_INTERLOCKED_BTS) && defined(BOOST_ATOMIC_INTERLOCKED_BTR)
+
+template< typename Base, std::size_t Size, bool Signed >
+struct extra_operations< Base, 4u, Signed, true > :
+    public extra_operations_generic< Base, 4u, Signed >
+{
+    using base_type = extra_operations_generic< Base, 4u, Signed >;
+    using storage_type = typename base_type::storage_type;
+
+    static BOOST_FORCEINLINE bool bit_test_and_set(storage_type volatile& storage, unsigned int bit_number, memory_order order) noexcept
+    {
+#if defined(BOOST_ATOMIC_INTERLOCKED_BTS_RELAXED) && defined(BOOST_ATOMIC_INTERLOCKED_BTS_ACQUIRE) && defined(BOOST_ATOMIC_INTERLOCKED_BTS_RELEASE)
+        bool result;
+        switch (order)
+        {
+        case memory_order_relaxed:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTS_RELAXED(&storage, bit_number);
+            break;
+        case memory_order_consume:
+        case memory_order_acquire:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTS_ACQUIRE(&storage, bit_number);
+            break;
+        case memory_order_release:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTS_RELEASE(&storage, bit_number);
+            break;
+        case memory_order_acq_rel:
+        case memory_order_seq_cst:
+        default:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTS(&storage, bit_number);
+            break;
+        }
+        return result;
+#else
+        return !!BOOST_ATOMIC_INTERLOCKED_BTS(&storage, bit_number);
+#endif
+    }
+
+    static BOOST_FORCEINLINE bool bit_test_and_reset(storage_type volatile& storage, unsigned int bit_number, memory_order order) noexcept
+    {
+#if defined(BOOST_ATOMIC_INTERLOCKED_BTR_RELAXED) && defined(BOOST_ATOMIC_INTERLOCKED_BTR_ACQUIRE) && defined(BOOST_ATOMIC_INTERLOCKED_BTR_RELEASE)
+        bool result;
+        switch (order)
+        {
+        case memory_order_relaxed:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTR_RELAXED(&storage, bit_number);
+            break;
+        case memory_order_consume:
+        case memory_order_acquire:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTR_ACQUIRE(&storage, bit_number);
+            break;
+        case memory_order_release:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTR_RELEASE(&storage, bit_number);
+            break;
+        case memory_order_acq_rel:
+        case memory_order_seq_cst:
+        default:
+            result = !!BOOST_ATOMIC_INTERLOCKED_BTR(&storage, bit_number);
+            break;
+        }
+        return result;
+#else
+        return !!BOOST_ATOMIC_INTERLOCKED_BTR(&storage, bit_number);
+#endif
+    }
+};
+
+#endif // defined(BOOST_ATOMIC_INTERLOCKED_BTS) && defined(BOOST_ATOMIC_INTERLOCKED_BTR)
+
+} // namespace detail
+} // namespace atomics
+} // namespace boost
+
+#include <boost/atomic/detail/footer.hpp>
+
+#endif // BOOST_ATOMIC_DETAIL_EXTRA_OPS_MSVC_ARM_HPP_INCLUDED_