boost/align/alignment_of.hpp

   1 /*
   2 Copyright 2014-2016 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_ALIGNMENT_OF_HPP
   9 #define BOOST_ALIGN_ALIGNMENT_OF_HPP
  10
  11 #include <boost/align/detail/element_type.hpp>
  12 #include <boost/align/alignment_of_forward.hpp>
  13
  14 #if defined(BOOST_MSVC)
  15 #include <boost/align/detail/alignment_of_msvc.hpp>
  16 #elif defined(__GNUC__) && defined(__unix__) && !defined(__LP64__)
  17 #include <boost/align/detail/alignment_of.hpp>
  18 #elif defined(BOOST_CLANG) && !defined(__x86_64__)
  19 #include <boost/align/detail/alignment_of.hpp>
  20 #elif !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
  21 #include <boost/align/detail/alignment_of_cxx11.hpp>
  22 #elif defined(__ghs__) && (__GHS_VERSION_NUMBER >= 600)
  23 #include <boost/align/detail/alignment_of_gcc.hpp>
  24 #elif defined(__CODEGEARC__)
  25 #include <boost/align/detail/alignment_of_codegear.hpp>
  26 #elif defined(BOOST_CLANG)
  27 #include <boost/align/detail/alignment_of_clang.hpp>
  28 #elif __GNUC__ > 4
  29 #include <boost/align/detail/alignment_of_gcc.hpp>
  30 #elif (__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)
  31 #include <boost/align/detail/alignment_of_gcc.hpp>
  32 #else
  33 #include <boost/align/detail/alignment_of.hpp>
  34 #endif
  35
  36 namespace boost {
  37 namespace alignment {
  38
  39 template<class T>
  40 struct alignment_of
  41     : detail::alignment_of<typename
  42         detail::element_type<T>::type>::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