1 /*=============================================================================
2 Copyright (c) 2001-2006 Joel de Guzman
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
11 #include <boost/fusion/container/vector/limits.hpp>
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>
18 #if (FUSION_MAX_VECTOR_SIZE > 20)
19 #include <boost/fusion/container/vector/vector30.hpp>
21 #if (FUSION_MAX_VECTOR_SIZE > 30)
22 #include <boost/fusion/container/vector/vector40.hpp>
24 #if (FUSION_MAX_VECTOR_SIZE > 40)
25 #include <boost/fusion/container/vector/vector50.hpp>
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>
35 namespace boost { namespace fusion
40 namespace boost { namespace fusion { namespace detail
42 template <BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, typename T)>
43 struct vector_n_chooser
45 typedef BOOST_PP_CAT(vector, FUSION_MAX_VECTOR_SIZE)<BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, T)> type;
49 struct vector_n_chooser<BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, void_ BOOST_PP_INTERCEPT)>
51 typedef vector0<> type;
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()
63 ///////////////////////////////////////////////////////////////////////////////
65 // Preprocessor vertical repetition code
67 ///////////////////////////////////////////////////////////////////////////////
68 #else // defined(BOOST_PP_IS_ITERATING)
70 #define N BOOST_PP_ITERATION()
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)>
77 typedef BOOST_PP_CAT(vector, N)<BOOST_PP_ENUM_PARAMS(N, T)> type;
81 #endif // defined(BOOST_PP_IS_ITERATING)