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1 # /* **************************************************************************
2 #  *                                                                          *
3 #  *     (C) Copyright Paul Mensonides 2002.
4 #  *     Distributed under the Boost Software License, Version 1.0. (See
5 #  *     accompanying file LICENSE_1_0.txt or copy at
6 #  *     http://www.boost.org/LICENSE_1_0.txt)
7 #  *                                                                          *
8 #  ************************************************************************** */
9 #
10 # /* See http://www.boost.org for most recent version. */
11 #
12 # include <boost/preprocessor/arithmetic/add.hpp>
13 # include <boost/preprocessor/arithmetic/dec.hpp>
14 # include <boost/preprocessor/control.hpp>
15 # include <libs/preprocessor/test/test.h>
16 
17 # define TR(x) 1
18 
19 BEGIN BOOST_PP_EXPR_IIF(0, TR)(0) == 0 END
20 BEGIN BOOST_PP_EXPR_IIF(1, TR)(0) == 1 END
21 
22 BEGIN BOOST_PP_EXPR_IF(3, TR)(0) == 1 END
23 BEGIN BOOST_PP_EXPR_IF(0, TR)(0) == 0 END
24 
25 BEGIN BOOST_PP_IIF(0, 1, 0) == 0 END
26 BEGIN BOOST_PP_IIF(1, 1, 0) == 1 END
27 
28 BEGIN BOOST_PP_IF(0, 1, 0) == 0 END
29 BEGIN BOOST_PP_IF(9, 1, 0) == 1 END
30 
31 # define PRED(d, state) state
32 # define OP_1(d, state) BOOST_PP_DEC(state)
33 
34 BEGIN BOOST_PP_WHILE(PRED, OP_1, 50) == 0 END
35 
36 # define OP_2(d, state) BOOST_PP_DEC(BOOST_PP_ADD(BOOST_PP_WHILE(PRED, OP_1, state), state))
37 # define OP_3(d, state) BOOST_PP_DEC(BOOST_PP_ADD_D(d, BOOST_PP_WHILE_ ## d(PRED, OP_1, state), state))
38 
39 BEGIN BOOST_PP_WHILE(PRED, OP_2, 10) == 0 END
40 BEGIN BOOST_PP_WHILE(PRED, OP_3, 10) == 0 END
41