boost/preprocessor/comparison/less.hpp
# /* Copyright (C) 2001 # * Housemarque Oy # * http://www.housemarque.com # * # * Distributed under the Boost Software License, Version 1.0. (See # * accompanying file LICENSE_1_0.txt or copy at # * http://www.boost.org/LICENSE_1_0.txt) # */ # # /* Revised by Paul Mensonides (2002) */ # # /* See http://www.boost.org for most recent version. */ # # ifndef BOOST_PREPROCESSOR_COMPARISON_LESS_HPP # define BOOST_PREPROCESSOR_COMPARISON_LESS_HPP # # include <boost/preprocessor/comparison/less_equal.hpp> # include <boost/preprocessor/comparison/not_equal.hpp> # include <boost/preprocessor/config/config.hpp> # include <boost/preprocessor/control/iif.hpp> # include <boost/preprocessor/logical/bitand.hpp> # include <boost/preprocessor/tuple/eat.hpp> # # /* BOOST_PP_LESS */ # # if BOOST_PP_CONFIG_FLAGS() & (BOOST_PP_CONFIG_MWCC() | BOOST_PP_CONFIG_DMC()) # define BOOST_PP_LESS(x, y) BOOST_PP_BITAND(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL(x, y)) # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_LESS(x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL, 0 BOOST_PP_TUPLE_EAT_2)(x, y) # else # define BOOST_PP_LESS(x, y) BOOST_PP_LESS_I(x, y) # define BOOST_PP_LESS_I(x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL, 0 BOOST_PP_TUPLE_EAT_2)(x, y) # endif # # /* BOOST_PP_LESS_D */ # # if BOOST_PP_CONFIG_FLAGS() & (BOOST_PP_CONFIG_MWCC() | BOOST_PP_CONFIG_DMC()) # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_BITAND(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D(d, x, y)) # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y) # else # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_LESS_D_I(d, x, y) # define BOOST_PP_LESS_D_I(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y) # endif # # endif