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/* Copyright (C) 2001
* Housemarque Oy
* http://www.housemarque.com
*
* Permission to copy, use, modify, sell and distribute this software is
* granted provided this copyright notice appears in all copies. This
* software is provided "as is" without express or implied warranty, and
* with no claim as to its suitability for any purpose.
*
* See http://www.boost.org for most recent version.
*/
#include <boost/preprocessor/enum_params.hpp>
#include <boost/preprocessor/enum_shifted_params.hpp>
#include <boost/preprocessor/inc.hpp>
#include <boost/preprocessor/repeat_2nd.hpp>
/* *** */
/* RATIONALE:
* - BOOST_PP_REPEAT, BOOST_PP_REPEAT_2ND, ... must work
* together.
* - BOOST_PP_REPEAT is already tested with
* BOOST_PP_ENUM_PARAMS.
* - The tested repeat count should exceed imaginable usage.
* - Testing the generation of is_function_helper()s upto 40 arguments should
* be sufficient in this case. Many compilers may fail the repetition tests
* (at least with higher counts). However, the primary purpose of the
* repetition primitives is to enable configurability with reasonable
* defaults, and not necessarily "the most impressive repetition".
* - ENUM_SHIFTED_PARAMS must be tested so that the shifted range is shown to
* be correct.
*/
#ifndef IS_FUNCTION_HELPER_TEST_MAX
#define IS_FUNCTION_HELPER_TEST_MAX 40
#endif
typedef char yes_type;
#define IS_FUNCTION_HELPER(I,A)\
template\
<BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(I),class P)>\
yes_type is_function_helper(\
P0 (*)(BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_INC(I),P)));
BOOST_PP_REPEAT_2ND(BOOST_PP_INC(IS_FUNCTION_HELPER_TEST_MAX),IS_FUNCTION_HELPER,A)
#undef IS_FUNCTION_HELPER
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