122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
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// Copyright Aleksey Gurtovoy 2000-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/apply_wrap.hpp>
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#include <boost/mpl/limits/arity.hpp>
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#include <boost/mpl/aux_/preprocessor/params.hpp>
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#include <boost/mpl/aux_/preprocessor/enum.hpp>
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#include <boost/mpl/aux_/test.hpp>
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#include <boost/preprocessor/repeat.hpp>
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#include <boost/preprocessor/comma_if.hpp>
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#include <boost/preprocessor/dec.hpp>
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#include <boost/preprocessor/if.hpp>
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#include <boost/preprocessor/cat.hpp>
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#if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
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# define APPLY_0_FUNC_DEF(z_ignored,i) \
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struct f0 \
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{ \
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template< typename T = int > struct apply { typedef char type; }; \
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}; \
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/**/
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#else
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# define APPLY_0_FUNC_DEF(z_ignored,i) \
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struct f0 \
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{ \
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template< typename T > struct apply { typedef char type; }; \
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}; \
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/**/
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#endif
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#define APPLY_N_FUNC_DEF(z,i) \
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struct first##i \
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{ \
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template< BOOST_MPL_PP_PARAMS_Z(z, i, typename U) > \
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struct apply { typedef U1 type; }; \
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}; \
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\
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struct last##i \
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{ \
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template< BOOST_MPL_PP_PARAMS_Z(z, i, typename U) > \
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struct apply { typedef BOOST_PP_CAT(U,i) type; }; \
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}; \
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/**/
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#define APPLY_FUNC_DEF(z, i, unused) \
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BOOST_PP_IF( \
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i \
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, APPLY_N_FUNC_DEF \
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, APPLY_0_FUNC_DEF \
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)(z,i) \
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/**/
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namespace { namespace test {
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BOOST_PP_REPEAT(
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY
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, APPLY_FUNC_DEF
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, unused
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)
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struct g0 { struct apply { typedef char type; }; };
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}}
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#define APPLY_0_TEST(z_ignored, i, apply_) \
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typedef apply_<test::f##i>::type t; \
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{ MPL_ASSERT(( boost::is_same<t, char> )); } \
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/**/
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#define APPLY_N_TEST(z, i, apply_) \
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typedef apply_< \
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test::first##i \
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, char \
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BOOST_PP_COMMA_IF(BOOST_PP_DEC(i)) \
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BOOST_MPL_PP_ENUM_Z(z, BOOST_PP_DEC(i), int) \
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>::type t1##i; \
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\
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typedef apply_< \
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test::last##i \
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, BOOST_MPL_PP_ENUM_Z(z, BOOST_PP_DEC(i), int) \
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BOOST_PP_COMMA_IF(BOOST_PP_DEC(i)) char \
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>::type t2##i; \
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{ MPL_ASSERT(( boost::is_same<t1##i, char> )); } \
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{ MPL_ASSERT(( boost::is_same<t2##i, char> )); } \
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/**/
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#define APPLY_TEST(z, i, unused) \
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BOOST_PP_IF( \
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i \
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, APPLY_N_TEST \
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, APPLY_0_TEST \
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)(z, i, BOOST_PP_CAT(apply_wrap,i)) \
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/**/
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MPL_TEST_CASE()
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{
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BOOST_PP_REPEAT(
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY
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, APPLY_TEST
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, unused
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)
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#if !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
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{
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typedef apply_wrap0<test::g0>::type t;
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MPL_ASSERT(( boost::is_same<t, char> ));
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}
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#endif
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}
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