ceph/src/boost/libs/tr1/include/boost/tr1/array.hpp

   1 //  (C) Copyright John Maddock 2005.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_TR1_ARRAY_HPP_INCLUDED
   7 #  define BOOST_TR1_ARRAY_HPP_INCLUDED
   8 #  include <boost/tr1/detail/config.hpp>
   9
  10 #ifdef BOOST_HAS_TR1_ARRAY
  11
  12 #  if defined(BOOST_HAS_INCLUDE_NEXT) && !defined(BOOST_TR1_DISABLE_INCLUDE_NEXT)
  13 #     include_next BOOST_TR1_HEADER(array)
  14 #  else
  15 #     include <boost/tr1/detail/config_all.hpp>
  16 #     include BOOST_TR1_STD_HEADER(BOOST_TR1_PATH(array))
  17 #  endif
  18
  19 #else
  20
  21 #include <boost/array.hpp>
  22 #include <boost/static_assert.hpp>
  23 #include <boost/type_traits/integral_constant.hpp>
  24 #include <boost/detail/workaround.hpp>
  25
  26 namespace std{ namespace tr1{
  27
  28 using ::boost::array;
  29
  30 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582)
  31 // [6.1.3.2] Tuple creation functions
  32 using ::boost::swap;
  33 #endif
  34
  35 #if !defined(BOOST_TR1_USE_OLD_TUPLE)
  36 }} namespace boost{ namespace fusion{
  37 #endif
  38
  39 // [6.2.2.5] Tuple interface to class template array
  40 template <class T> struct tuple_size; // forward declaration
  41 template <int I, class T> struct tuple_element; // forward declaration
  42 template <class T, size_t N>
  43 struct tuple_size< ::boost::array<T, N> >
  44    : public ::boost::integral_constant< ::std::size_t, N>{};
  45
  46
  47 template <int I, class T, size_t N>
  48 struct tuple_element<I, ::boost::array<T, N> >
  49 {
  50 #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))
  51    BOOST_STATIC_ASSERT(I < (int)N);
  52    BOOST_STATIC_ASSERT(I >= 0);
  53 #endif
  54    typedef T type;
  55 };
  56 template <int I, class T, size_t N>
  57 T& get( ::boost::array<T, N>& a)
  58 {
  59    BOOST_STATIC_ASSERT(I < N);
  60    BOOST_STATIC_ASSERT(I >= 0);
  61    return a[I];
  62 }
  63
  64 template <int I, class T, size_t N>
  65 const T& get(const array<T, N>& a)
  66 {
  67    BOOST_STATIC_ASSERT(I < N);
  68    BOOST_STATIC_ASSERT(I >= 0);
  69    return a[I];
  70 }
  71
  72 #if !defined(BOOST_TR1_USE_OLD_TUPLE)
  73 }} namespace std{ namespace tr1{
  74
  75    using ::boost::fusion::tuple_size;
  76    using ::boost::fusion::tuple_element;
  77    using ::boost::fusion::get;
  78
  79 #endif
  80
  81
  82 } } // namespaces
  83
  84 #endif
  85
  86 #endif