1 | # /* Copyright (C) 2001 |
2 | # * Housemarque Oy |
3 | # * http://www.housemarque.com |
4 | # * |
5 | # * Distributed under the Boost Software License, Version 1.0. (See |
6 | # * accompanying file LICENSE_1_0.txt or copy at |
7 | # * http://www.boost.org/LICENSE_1_0.txt) |
8 | # */ |
9 | # |
10 | # /* Revised by Paul Mensonides (2002) */ |
11 | # |
12 | # /* See http://www.boost.org for most recent version. */ |
13 | # |
14 | # ifndef BOOST_PREPROCESSOR_LIST_SIZE_HPP |
15 | # define BOOST_PREPROCESSOR_LIST_SIZE_HPP |
16 | # |
17 | # include <boost/preprocessor/arithmetic/inc.hpp> |
18 | # include <boost/preprocessor/config/config.hpp> |
19 | # include <boost/preprocessor/control/while.hpp> |
20 | # include <boost/preprocessor/list/adt.hpp> |
21 | # include <boost/preprocessor/tuple/elem.hpp> |
22 | # include <boost/preprocessor/tuple/rem.hpp> |
23 | # |
24 | # /* BOOST_PP_LIST_SIZE */ |
25 | # |
26 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() |
27 | # define BOOST_PP_LIST_SIZE(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list))) |
28 | # else |
29 | # define BOOST_PP_LIST_SIZE(list) BOOST_PP_LIST_SIZE_I(list) |
30 | # define BOOST_PP_LIST_SIZE_I(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list))) |
31 | # endif |
32 | # |
33 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() |
34 | # define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_IS_CONS(BOOST_PP_TUPLE_ELEM(2, 1, rl)) |
35 | # else |
36 | # define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_SIZE_P_I(BOOST_PP_TUPLE_REM_2 rl) |
37 | # define BOOST_PP_LIST_SIZE_P_I(im) BOOST_PP_LIST_SIZE_P_II(im) |
38 | # define BOOST_PP_LIST_SIZE_P_II(r, l) BOOST_PP_LIST_IS_CONS(l) |
39 | # endif |
40 | # |
41 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() |
42 | # define BOOST_PP_LIST_SIZE_O(d, rl) (BOOST_PP_INC(BOOST_PP_TUPLE_ELEM(2, 0, rl)), BOOST_PP_LIST_REST(BOOST_PP_TUPLE_ELEM(2, 1, rl))) |
43 | # else |
44 | # define BOOST_PP_LIST_SIZE_O(d, rl) BOOST_PP_LIST_SIZE_O_I(BOOST_PP_TUPLE_REM_2 rl) |
45 | # define BOOST_PP_LIST_SIZE_O_I(im) BOOST_PP_LIST_SIZE_O_II(im) |
46 | # define BOOST_PP_LIST_SIZE_O_II(r, l) (BOOST_PP_INC(r), BOOST_PP_LIST_REST(l)) |
47 | # endif |
48 | # |
49 | # /* BOOST_PP_LIST_SIZE_D */ |
50 | # |
51 | # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() |
52 | # define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list))) |
53 | # else |
54 | # define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_LIST_SIZE_D_I(d, list) |
55 | # define BOOST_PP_LIST_SIZE_D_I(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list))) |
56 | # endif |
57 | # |
58 | # endif |
59 | |