整理

include/boost/align/detail/is_aligned.hpp

@@ -0,0 +1,34 @@
+/*
+Copyright 2014 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#ifndef BOOST_ALIGN_DETAIL_IS_ALIGNED_HPP
+#define BOOST_ALIGN_DETAIL_IS_ALIGNED_HPP
+
+#include <boost/align/detail/is_alignment.hpp>
+#include <boost/assert.hpp>
+
+namespace boost {
+namespace alignment {
+
+inline bool
+is_aligned(const volatile void* ptr, std::size_t alignment) BOOST_NOEXCEPT
+{
+    BOOST_ASSERT(detail::is_alignment(alignment));
+    return (reinterpret_cast<std::size_t>(ptr) & (alignment - 1)) == 0;
+}
+
+inline bool
+is_aligned(std::size_t alignment, const volatile void* ptr) BOOST_NOEXCEPT
+{
+    BOOST_ASSERT(detail::is_alignment(alignment));
+    return (reinterpret_cast<std::size_t>(ptr) & (alignment - 1)) == 0;
+}
+
+} /* alignment */
+} /* boost */
+
+#endif