整理

include/boost/core/detail/static_assert.hpp

@@ -0,0 +1,42 @@
+#ifndef BOOST_CORE_DETAIL_STATIC_ASSERT_HPP_INCLUDED
+#define BOOST_CORE_DETAIL_STATIC_ASSERT_HPP_INCLUDED
+
+// Copyright 2025 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#if defined(__cpp_static_assert) && __cpp_static_assert >= 200410L
+
+#define BOOST_CORE_STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
+
+#else
+
+#include <boost/config.hpp>
+#include <cstddef>
+
+namespace boost
+{
+namespace core
+{
+
+template<bool> struct STATIC_ASSERTION_FAILURE;
+
+template<> struct STATIC_ASSERTION_FAILURE<true>
+{
+};
+
+template<std::size_t> struct static_assert_test
+{
+};
+
+} // namespace core
+} // namespace boost
+
+#define BOOST_CORE_STATIC_ASSERT(expr) \
+    typedef ::boost::core::static_assert_test< \
+        sizeof( ::boost::core::STATIC_ASSERTION_FAILURE<(expr)? true: false> ) \
+    > BOOST_JOIN(boost_static_assert_typedef_,__LINE__) BOOST_ATTRIBUTE_UNUSED
+
+#endif
+
+#endif  // #ifndef BOOST_CORE_DETAIL_STATIC_ASSERT_HPP_INCLUDED