ceph/src/boost/libs/align/include/boost/align/alignment_of.hpp

   1 /*
   2 (c) 2014-2016 Glen Joseph Fernandes
   3 <glenjofe -at- gmail.com>
   4
   5 Distributed under the Boost Software
   6 License, Version 1.0.
   7 http://boost.org/LICENSE_1_0.txt
   8 */
   9 #ifndef BOOST_ALIGN_ALIGNMENT_OF_HPP
  10 #define BOOST_ALIGN_ALIGNMENT_OF_HPP
  11
  12 #include <boost/align/detail/element_type.hpp>
  13 #include <boost/align/alignment_of_forward.hpp>
  14
  15 #if defined(BOOST_MSVC)
  16 #include <boost/align/detail/alignment_of_msvc.hpp>
  17 #elif defined(__GNUC__) && defined(__unix__) && !defined(__LP64__)
  18 #include <boost/align/detail/alignment_of.hpp>
  19 #elif defined(BOOST_CLANG) && !defined(__x86_64__)
  20 #include <boost/align/detail/alignment_of.hpp>
  21 #elif !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
  22 #include <boost/align/detail/alignment_of_cxx11.hpp>
  23 #elif defined(__ghs__) && (__GHS_VERSION_NUMBER >= 600)
  24 #include <boost/align/detail/alignment_of_gcc.hpp>
  25 #elif defined(__CODEGEARC__)
  26 #include <boost/align/detail/alignment_of_codegear.hpp>
  27 #elif defined(BOOST_CLANG)
  28 #include <boost/align/detail/alignment_of_clang.hpp>
  29 #elif __GNUC__ > 4
  30 #include <boost/align/detail/alignment_of_gcc.hpp>
  31 #elif (__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)
  32 #include <boost/align/detail/alignment_of_gcc.hpp>
  33 #else
  34 #include <boost/align/detail/alignment_of.hpp>
  35 #endif
  36
  37 namespace boost {
  38 namespace alignment {
  39
  40 template<class T>
  41 struct alignment_of
  42     : detail::alignment_of<typename detail::element_type<T>::type> { };
  43
  44 #if !defined(BOOST_NO_CXX14_VARIABLE_TEMPLATES)
  45 template<class T>
  46 constexpr std::size_t alignment_of_v = alignment_of<T>::value;
  47 #endif
  48
  49 } /* .alignment */
  50 } /* .boost */
  51
  52 #endif