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/Src/Dependencies/Boost/boost/fusion/container/vector/detail/vector_n_chooser.hpp

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C++ Header | 81 lines | 56 code | 13 blank | 12 comment | 0 complexity | 7d9962ed7bf228e778e201164943e53b MD5 | raw file
 1/*=============================================================================
 2    Copyright (c) 2001-2006 Joel de Guzman
 3
 4    Distributed under the Boost Software License, Version 1.0. (See accompanying 
 5    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 6==============================================================================*/
 7#ifndef BOOST_PP_IS_ITERATING
 8#if !defined(FUSION_VECTOR_N_CHOOSER_07072005_1248)
 9#define FUSION_VECTOR_N_CHOOSER_07072005_1248
10
11#include <boost/fusion/container/vector/limits.hpp>
12
13//  include vector0..N where N is FUSION_MAX_VECTOR_SIZE
14#include <boost/fusion/container/vector/vector10.hpp>
15#if (FUSION_MAX_VECTOR_SIZE > 10)
16#include <boost/fusion/container/vector/vector20.hpp>
17#endif
18#if (FUSION_MAX_VECTOR_SIZE > 20)
19#include <boost/fusion/container/vector/vector30.hpp>
20#endif
21#if (FUSION_MAX_VECTOR_SIZE > 30)
22#include <boost/fusion/container/vector/vector40.hpp>
23#endif
24#if (FUSION_MAX_VECTOR_SIZE > 40)
25#include <boost/fusion/container/vector/vector50.hpp>
26#endif
27
28#include <boost/preprocessor/cat.hpp>
29#include <boost/preprocessor/arithmetic/dec.hpp>
30#include <boost/preprocessor/arithmetic/sub.hpp>
31#include <boost/preprocessor/facilities/intercept.hpp>
32#include <boost/preprocessor/repetition/enum_params.hpp>
33#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
34
35namespace boost { namespace fusion
36{
37    struct void_;
38}}
39
40namespace boost { namespace fusion { namespace detail
41{
42    template <BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, typename T)>
43    struct vector_n_chooser
44    {
45        typedef BOOST_PP_CAT(vector, FUSION_MAX_VECTOR_SIZE)<BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, T)> type;
46    };
47
48    template <>
49    struct vector_n_chooser<BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, void_ BOOST_PP_INTERCEPT)>
50    {
51        typedef vector0<> type;
52    };
53
54#define BOOST_PP_FILENAME_1 \
55    <boost/fusion/container/vector/detail/vector_n_chooser.hpp>
56#define BOOST_PP_ITERATION_LIMITS (1, BOOST_PP_DEC(FUSION_MAX_VECTOR_SIZE))
57#include BOOST_PP_ITERATE()
58
59}}}
60
61#endif
62
63///////////////////////////////////////////////////////////////////////////////
64//
65//  Preprocessor vertical repetition code
66//
67///////////////////////////////////////////////////////////////////////////////
68#else // defined(BOOST_PP_IS_ITERATING)
69
70#define N BOOST_PP_ITERATION()
71
72    template <BOOST_PP_ENUM_PARAMS(N, typename T)>
73    struct vector_n_chooser<
74        BOOST_PP_ENUM_PARAMS(N, T)
75        BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_SUB(FUSION_MAX_VECTOR_SIZE, N), void_ BOOST_PP_INTERCEPT)>
76    {
77        typedef BOOST_PP_CAT(vector, N)<BOOST_PP_ENUM_PARAMS(N, T)> type;
78    };
79
80#undef N
81#endif // defined(BOOST_PP_IS_ITERATING)