整理

include/boost/atomic/detail/string_ops.hpp

@@ -0,0 +1,61 @@
+/*
+ * 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) 2018 Andrey Semashev
+ */
+/*!
+ * \file   atomic/detail/string_ops.hpp
+ *
+ * This header defines string operations for Boost.Atomic
+ */
+
+#ifndef BOOST_ATOMIC_DETAIL_STRING_OPS_HPP_INCLUDED_
+#define BOOST_ATOMIC_DETAIL_STRING_OPS_HPP_INCLUDED_
+
+#include <boost/atomic/detail/config.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+#if defined(__has_builtin)
+#if __has_builtin(__builtin_memcpy)
+#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY
+#endif
+#if __has_builtin(__builtin_memcmp)
+#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP
+#endif
+#if __has_builtin(__builtin_memset)
+#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMSET
+#endif
+#elif defined(BOOST_GCC)
+#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY
+#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP
+#define BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMSET
+#endif
+
+#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY)
+#define BOOST_ATOMIC_DETAIL_MEMCPY __builtin_memcpy
+#else
+#define BOOST_ATOMIC_DETAIL_MEMCPY std::memcpy
+#endif
+
+#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP)
+#define BOOST_ATOMIC_DETAIL_MEMCMP __builtin_memcmp
+#else
+#define BOOST_ATOMIC_DETAIL_MEMCMP std::memcmp
+#endif
+
+#if defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMSET)
+#define BOOST_ATOMIC_DETAIL_MEMSET __builtin_memset
+#else
+#define BOOST_ATOMIC_DETAIL_MEMSET std::memset
+#endif
+
+#if !defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCPY) || !defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMCMP) || !defined(BOOST_ATOMIC_DETAIL_HAS_BUILTIN_MEMSET)
+#include <cstring>
+#endif
+
+#endif // BOOST_ATOMIC_DETAIL_STRING_OPS_HPP_INCLUDED_