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# /* Copyright (C) 2002
# * 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. */
#
# /* This example demonstrates the usage of preprocessor lists for generating C++ code. */
#
# include <boost/preprocessor/facilities/empty.hpp>
# include <boost/preprocessor/list/at.hpp>
# include <boost/preprocessor/list/for_each_product.hpp>
# include <boost/preprocessor/tuple/elem.hpp>
# include <boost/preprocessor/tuple/to_list.hpp>
#
# /* List of integral types. (Strictly speaking, wchar_t should be on the list.) */
# define INTEGRAL_TYPES \
BOOST_PP_TUPLE_TO_LIST( \
9, (char, signed char, unsigned char, short, unsigned short, int, unsigned, long, unsigned long) \
) \
/**/
#
# /* List of invokeable cv-qualifiers */
# define CV_QUALIFIERS \
BOOST_PP_TUPLE_TO_LIST( \
4, (BOOST_PP_EMPTY, const BOOST_PP_EMPTY, volatile BOOST_PP_EMPTY, const volatile BOOST_PP_EMPTY) \
) \
/**/
#
# /* Template for testing whether a type is an integral type. */
template<class T> struct is_integral {
enum { value = false };
};
# /* Macro for defining a specialization of is_integral<> template. */
# define IS_INTEGRAL_SPECIALIZATION(R, L) \
template<> struct is_integral<BOOST_PP_TUPLE_ELEM(2, 0, L)() BOOST_PP_TUPLE_ELEM(2, 1, L)> { \
enum { value = true }; \
}; \
/**/
BOOST_PP_LIST_FOR_EACH_PRODUCT(IS_INTEGRAL_SPECIALIZATION, 2, (CV_QUALIFIERS, INTEGRAL_TYPES))
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