author | Richard Taylor <richard.i.taylor@nokia.com> |
Thu, 03 Dec 2009 14:59:48 +0000 | |
branch | wip |
changeset 32 | fdfc59a2ae7e |
parent 0 | 044383f39525 |
permissions | -rw-r--r-- |
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#if !defined(BOOST_PP_IS_ITERATING) |
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///// header body |
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#ifndef BOOST_MPL_APPLY_WRAP_HPP_INCLUDED |
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#define BOOST_MPL_APPLY_WRAP_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2000-2008 |
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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: apply_wrap.hpp 49272 2008-10-11 06:50:46Z agurtovoy $ |
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// $Date: 2008-10-11 02:50:46 -0400 (Sat, 11 Oct 2008) $ |
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// $Revision: 49272 $ |
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#if !defined(BOOST_MPL_PREPROCESSING_MODE) |
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# include <boost/mpl/aux_/arity.hpp> |
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# include <boost/mpl/aux_/has_apply.hpp> |
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# include <boost/mpl/aux_/na.hpp> |
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# include <boost/mpl/aux_/msvc_never_true.hpp> |
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#endif |
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#include <boost/mpl/aux_/config/use_preprocessed.hpp> |
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#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ |
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&& !defined(BOOST_MPL_PREPROCESSING_MODE) |
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# define BOOST_MPL_PREPROCESSED_HEADER apply_wrap.hpp |
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# include <boost/mpl/aux_/include_preprocessed.hpp> |
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#else |
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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_/preprocessor/add.hpp> |
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# include <boost/mpl/aux_/config/bcc.hpp> |
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# include <boost/mpl/aux_/config/ctps.hpp> |
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# include <boost/mpl/aux_/config/dtp.hpp> |
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# include <boost/mpl/aux_/config/eti.hpp> |
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# include <boost/mpl/aux_/config/msvc.hpp> |
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# include <boost/mpl/aux_/config/workaround.hpp> |
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# include <boost/preprocessor/comma_if.hpp> |
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# include <boost/preprocessor/logical/and.hpp> |
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# include <boost/preprocessor/inc.hpp> |
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# include <boost/preprocessor/iterate.hpp> |
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namespace boost { namespace mpl { |
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// local macros, #undef-ined at the end of the header |
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# define AUX778076_APPLY_WRAP_PARAMS(n, param) \ |
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BOOST_MPL_PP_PARAMS(n, param) \ |
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/**/ |
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# define AUX778076_APPLY_WRAP_SPEC_PARAMS(n, param) \ |
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BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \ |
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/**/ |
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#define BOOST_PP_ITERATION_PARAMS_1 \ |
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(3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_wrap.hpp>)) |
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#include BOOST_PP_ITERATE() |
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# undef AUX778076_APPLY_WRAP_SPEC_PARAMS |
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# undef AUX778076_APPLY_WRAP_PARAMS |
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}} |
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#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS |
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#endif // BOOST_MPL_APPLY_WRAP_HPP_INCLUDED |
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///// iteration, depth == 1 |
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// For gcc 4.4 compatability, we must include the |
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// BOOST_PP_ITERATION_DEPTH test inside an #else clause. |
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#else // BOOST_PP_IS_ITERATING |
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#if BOOST_PP_ITERATION_DEPTH() == 1 |
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# define i_ BOOST_PP_FRAME_ITERATION(1) |
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# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) |
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// MSVC version |
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#define AUX778076_MSVC_DTW_NAME BOOST_PP_CAT(msvc_apply,i_) |
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#define AUX778076_MSVC_DTW_ORIGINAL_NAME apply |
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#define AUX778076_MSVC_DTW_ARITY i_ |
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#include <boost/mpl/aux_/msvc_dtw.hpp> |
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template< |
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typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T) |
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> |
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struct BOOST_PP_CAT(apply_wrap,i_) |
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{ |
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// Metafunction forwarding confuses vc6 |
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typedef typename BOOST_PP_CAT(msvc_apply,i_)<F>::template result_< |
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AUX778076_APPLY_WRAP_PARAMS(i_, T) |
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>::type type; |
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}; |
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# elif defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) |
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// MWCW/Borland version |
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template< |
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int N, typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T) |
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> |
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struct BOOST_PP_CAT(apply_wrap_impl,i_); |
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#define BOOST_PP_ITERATION_PARAMS_2 \ |
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(3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY - i_, <boost/mpl/apply_wrap.hpp>)) |
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#include BOOST_PP_ITERATE() |
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template< |
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typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T) |
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> |
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struct BOOST_PP_CAT(apply_wrap,i_) |
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: BOOST_PP_CAT(apply_wrap_impl,i_)< |
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::boost::mpl::aux::arity<F,i_>::value |
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, F |
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BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T) |
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>::type |
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{ |
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}; |
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131 |
|
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# else |
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// ISO98 C++, with minor concession to vc7 |
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134 |
|
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135 |
template< |
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typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T) |
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#if i_ == 0 |
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, typename has_apply_ = typename aux::has_apply<F>::type |
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#endif |
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140 |
> |
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struct BOOST_PP_CAT(apply_wrap,i_) |
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// metafunction forwarding confuses MSVC 7.0 |
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#if !BOOST_WORKAROUND(BOOST_MSVC, == 1300) |
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: F::template apply< AUX778076_APPLY_WRAP_PARAMS(i_, T) > |
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{ |
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146 |
#else |
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{ |
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typedef typename F::template apply< |
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AUX778076_APPLY_WRAP_PARAMS(i_, T) |
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>::type type; |
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#endif |
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}; |
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153 |
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#if i_ == 0 && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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template< typename F > |
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struct BOOST_PP_CAT(apply_wrap,i_)<F,true_> |
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: F::apply |
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{ |
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}; |
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160 |
#endif |
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161 |
|
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# endif // workarounds |
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163 |
|
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#if defined(BOOST_MPL_CFG_MSVC_ETI_BUG) |
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/// workaround for ETI bug |
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166 |
template<> |
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struct BOOST_PP_CAT(apply_wrap,i_)<AUX778076_APPLY_WRAP_SPEC_PARAMS(i_, int)> |
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168 |
{ |
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typedef int type; |
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}; |
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171 |
#endif |
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172 |
|
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# undef i_ |
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174 |
|
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///// iteration, depth == 2 |
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176 |
|
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177 |
#elif BOOST_PP_ITERATION_DEPTH() == 2 |
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178 |
|
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179 |
# define j_ BOOST_PP_FRAME_ITERATION(2) |
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180 |
|
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181 |
#if i_ == 0 && j_ == 0 \ |
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&& defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) \ |
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&& !defined(BOOST_MPL_CFG_NO_HAS_APPLY) |
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184 |
|
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185 |
template< typename F, bool F_has_apply > |
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186 |
struct apply_wrap_impl0_bcb { |
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187 |
typedef typename F::template apply< na > type; |
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188 |
}; |
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189 |
|
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190 |
template< typename F > |
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191 |
struct apply_wrap_impl0_bcb< F, true > { |
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192 |
typedef typename F::apply type; |
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193 |
}; |
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194 |
|
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195 |
template< |
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196 |
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T) |
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197 |
> |
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198 |
struct BOOST_PP_CAT(apply_wrap_impl,i_)< |
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199 |
BOOST_MPL_PP_ADD(i_, j_) |
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200 |
, F |
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201 |
BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T) |
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202 |
> |
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203 |
{ |
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204 |
typedef apply_wrap_impl0_bcb< F, aux::has_apply< F >::value >::type type; |
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205 |
}; |
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206 |
#else |
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207 |
|
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208 |
template< |
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209 |
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T) |
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210 |
> |
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211 |
struct BOOST_PP_CAT(apply_wrap_impl,i_)< |
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212 |
BOOST_MPL_PP_ADD(i_, j_) |
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213 |
, F |
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214 |
BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T) |
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215 |
> |
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216 |
{ |
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217 |
typedef typename F::template apply< |
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218 |
AUX778076_APPLY_WRAP_PARAMS(i_, T) |
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219 |
#if i_ == 0 && j_ == 0 |
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220 |
/// since the defaults are "lost", we have to pass *something* even for nullary |
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221 |
/// metafunction classes |
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222 |
na |
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223 |
#else |
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224 |
BOOST_PP_COMMA_IF(BOOST_PP_AND(i_, j_)) BOOST_MPL_PP_ENUM(j_, na) |
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225 |
#endif |
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226 |
> type; |
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227 |
}; |
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228 |
|
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229 |
#endif |
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230 |
|
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231 |
# undef j_ |
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232 |
|
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233 |
#endif // BOOST_PP_ITERATION_DEPTH() |
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234 |
#endif // BOOST_PP_IS_ITERATING |