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 #  include BOOST_TR1_HEADER(array)

    13 

    14 #else

    15 

    16 #include <boost/array.hpp>

    17 #include <boost/static_assert.hpp>

    18 #include <boost/type_traits/integral_constant.hpp>

    19 #include <boost/detail/workaround.hpp>

    20 

    21 namespace std{ namespace tr1{

    22 

    23 using ::boost::array;

    24 

    25 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582)

    26 // [6.1.3.2] Tuple creation functions

    27 using ::boost::swap;

    28 #endif

    29 

    30 #if !defined(BOOST_TR1_USE_OLD_TUPLE)

    31 }} namespace boost{ namespace fusion{

    32 #endif

    33 

    34 // [6.2.2.5] Tuple interface to class template array

    35 template <class T> struct tuple_size; // forward declaration

    36 template <int I, class T> struct tuple_element; // forward declaration

    37 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

    38 template <class T, size_t N>

    39 struct tuple_size< ::boost::array<T, N> >

    40    : public ::boost::integral_constant< ::std::size_t, N>{};

    41 

    42 

    43 template <int I, class T, size_t N>

    44 struct tuple_element<I, ::boost::array<T, N> >

    45 {

    46 #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))

    47    BOOST_STATIC_ASSERT(I < (int)N);

    48    BOOST_STATIC_ASSERT(I >= 0);

    49 #endif

    50    typedef T type;

    51 };

    52 #endif

    53 template <int I, class T, size_t N>

    54 T& get( ::boost::array<T, N>& a)

    55 {

    56    BOOST_STATIC_ASSERT(I < N);

    57    BOOST_STATIC_ASSERT(I >= 0);

    58    return a[I];

    59 }

    60 

    61 template <int I, class T, size_t N>

    62 const T& get(const array<T, N>& a)

    63 {

    64    BOOST_STATIC_ASSERT(I < N);

    65    BOOST_STATIC_ASSERT(I >= 0);

    66    return a[I];

    67 }

    68 

    69 #if !defined(BOOST_TR1_USE_OLD_TUPLE)

    70 }} namespace std{ namespace tr1{

    71 

    72    using ::boost::fusion::tuple_size;

    73    using ::boost::fusion::tuple_element;

    74    using ::boost::fusion::get;

    75 

    76 #endif

    77 

    78 

    79 } } // namespaces

    80 

    81 #endif

    82 

    83 #endif