forked from boostorg/mpl
170 lines
5.0 KiB
C++
170 lines
5.0 KiB
C++
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// + file: boost/mpl/aux_/logical_op.hpp
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// + last modified: 25/feb/03
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// Copyright (c) 2000-03
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// Aleksey Gurtovoy
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// no include guards, the header is intended for multiple inclusion!
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#if !defined(BOOST_MPL_PREPROCESSING_MODE)
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# include "boost/mpl/bool.hpp"
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# include "boost/mpl/aux_/nested_type_wknd.hpp"
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# include "boost/mpl/aux_/void_spec.hpp"
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# include "boost/mpl/aux_/lambda_support.hpp"
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#endif
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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/ext_params.hpp"
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#include "boost/mpl/aux_/preprocessor/def_params_tail.hpp"
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#include "boost/mpl/aux_/preprocessor/enum.hpp"
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#include "boost/mpl/aux_/preprocessor/sub.hpp"
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#include "boost/mpl/aux_/config/workaround.hpp"
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#include "boost/preprocessor/dec.hpp"
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#include "boost/preprocessor/inc.hpp"
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#include "boost/preprocessor/cat.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 AUX_LOGICAL_OP_PARAMS(param, sub) \
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BOOST_MPL_PP_PARAMS( \
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BOOST_MPL_PP_SUB(BOOST_MPL_METAFUNCTION_MAX_ARITY, sub) \
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, param \
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) \
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/**/
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# define AUX_LOGICAL_OP_SHIFTED_PARAMS(param, sub) \
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BOOST_MPL_PP_EXT_PARAMS( \
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2, BOOST_MPL_PP_SUB(BOOST_PP_INC(BOOST_MPL_METAFUNCTION_MAX_ARITY), sub) \
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, param \
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) \
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/**/
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# define AUX_LOGICAL_OP_SPEC_PARAMS(param) \
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BOOST_MPL_PP_ENUM( \
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BOOST_PP_DEC(BOOST_MPL_METAFUNCTION_MAX_ARITY) \
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, param \
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) \
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/**/
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namespace aux {
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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template< bool C_, AUX_LOGICAL_OP_PARAMS(typename T, 1) >
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struct BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)
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: BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE1,_)
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{
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};
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template< AUX_LOGICAL_OP_PARAMS(typename T, 1) >
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struct BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)< AUX_LOGICAL_OP_VALUE2,AUX_LOGICAL_OP_PARAMS(T, 1) >
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: BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<
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BOOST_MPL_AUX_NESTED_TYPE_WKND(T1)::value
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, AUX_LOGICAL_OP_SHIFTED_PARAMS(T, 1)
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, BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_)
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>
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{
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};
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template<>
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struct BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<
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AUX_LOGICAL_OP_VALUE2
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, AUX_LOGICAL_OP_SPEC_PARAMS(BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_))
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>
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: BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_)
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{
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};
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#else
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template< bool C_ > struct BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)
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{
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template< AUX_LOGICAL_OP_PARAMS(typename T, 1) > struct result_
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: BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE1,_)
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{
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};
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};
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template<> struct BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<AUX_LOGICAL_OP_VALUE2>
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{
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template< AUX_LOGICAL_OP_PARAMS(typename T, 1) > struct result_
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: BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<
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BOOST_MPL_AUX_NESTED_TYPE_WKND(T1)::value
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>::template result_< AUX_LOGICAL_OP_SHIFTED_PARAMS(T,1),BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_) >
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{
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};
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#if BOOST_WORKAROUND(BOOST_MSVC, == 1300)
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template<> struct result_<AUX_LOGICAL_OP_SPEC_PARAMS(BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_))>
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: BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_)
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{
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};
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};
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#else
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};
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template<>
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struct BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<AUX_LOGICAL_OP_VALUE2>
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::result_< AUX_LOGICAL_OP_SPEC_PARAMS(BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_)) >
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: BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_)
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{
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};
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#endif // BOOST_MSVC == 1300
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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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} // namespace aux
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template<
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typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T1)
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, typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T2)
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BOOST_MPL_PP_DEF_PARAMS_TAIL(2, typename T, BOOST_PP_CAT(AUX_LOGICAL_OP_VALUE2,_))
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>
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struct AUX_LOGICAL_OP_NAME
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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: aux::BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<
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BOOST_MPL_AUX_NESTED_TYPE_WKND(T1)::value
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, AUX_LOGICAL_OP_SHIFTED_PARAMS(T,0)
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>
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#else
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: aux::BOOST_PP_CAT(AUX_LOGICAL_OP_NAME,impl)<
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BOOST_MPL_AUX_NESTED_TYPE_WKND(T1)::value
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>::template result_< AUX_LOGICAL_OP_SHIFTED_PARAMS(T,0) >
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#endif
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(
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BOOST_MPL_METAFUNCTION_MAX_ARITY
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, AUX_LOGICAL_OP_NAME
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, (AUX_LOGICAL_OP_PARAMS(T, 0))
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)
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};
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BOOST_MPL_AUX_VOID_SPEC_EXT(
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2
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, BOOST_MPL_METAFUNCTION_MAX_ARITY
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, AUX_LOGICAL_OP_NAME
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)
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}} // namespace boost::mpl
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#undef AUX_LOGICAL_OP_SPEC_PARAMS
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#undef AUX_LOGICAL_OP_SHIFTED_PARAMS
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#undef AUX_LOGICAL_OP_PARAMS
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#undef AUX_LOGICAL_OP_NAME
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#undef AUX_LOGICAL_OP_VALUE1
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#undef AUX_LOGICAL_OP_VALUE2
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