ceph/src/boost/boost/align/detail/is_alignment.hpp

   1 /*
   2 Copyright 2014 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (http://www.boost.org/LICENSE_1_0.txt)
   7 */
   8 #ifndef BOOST_ALIGN_DETAIL_IS_ALIGNMENT_HPP
   9 #define BOOST_ALIGN_DETAIL_IS_ALIGNMENT_HPP
  10
  11 #include <boost/config.hpp>
  12 #include <cstddef>
  13
  14 namespace boost {
  15 namespace alignment {
  16 namespace detail {
  17
  18 BOOST_CONSTEXPR inline bool
  19 is_alignment(std::size_t value) BOOST_NOEXCEPT
  20 {
  21     return (value > 0) && ((value & (value - 1)) == 0);
  22 }
  23
  24 } /* detail */
  25 } /* alignment */
  26 } /* boost */
  27
  28 #endif