/extlibs/Boost/include/boost/preprocessor/control/expr_iif.hpp

 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# ifndef BOOST_PREPROCESSOR_CONTROL_EXPR_IIF_HPP
13# define BOOST_PREPROCESSOR_CONTROL_EXPR_IIF_HPP
14#
15# include <boost/preprocessor/config/config.hpp>
16#
17# /* BOOST_PP_EXPR_IIF */
18#
19# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
20#    define BOOST_PP_EXPR_IIF(bit, expr) BOOST_PP_EXPR_IIF_I(bit, expr)
21# else
22#    define BOOST_PP_EXPR_IIF(bit, expr) BOOST_PP_EXPR_IIF_OO((bit, expr))
23#    define BOOST_PP_EXPR_IIF_OO(par) BOOST_PP_EXPR_IIF_I ## par
24# endif
25#
26# define BOOST_PP_EXPR_IIF_I(bit, expr) BOOST_PP_EXPR_IIF_ ## bit(expr)
27#
28# define BOOST_PP_EXPR_IIF_0(expr)
29# define BOOST_PP_EXPR_IIF_1(expr) expr
30#
31# endif