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Diffstat (limited to '3rdParty/Boost/src/boost/multi_index/detail/vartempl_support.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/multi_index/detail/vartempl_support.hpp | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/multi_index/detail/vartempl_support.hpp b/3rdParty/Boost/src/boost/multi_index/detail/vartempl_support.hpp new file mode 100644 index 0000000..06ff430 --- /dev/null +++ b/3rdParty/Boost/src/boost/multi_index/detail/vartempl_support.hpp @@ -0,0 +1,247 @@ +/* Copyright 2003-2013 Joaquin M Lopez Munoz. + * 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) + * + * See http://www.boost.org/libs/multi_index for library home page. + */ + +#ifndef BOOST_MULTI_INDEX_DETAIL_VARTEMPL_SUPPORT_HPP +#define BOOST_MULTI_INDEX_DETAIL_VARTEMPL_SUPPORT_HPP + +#if defined(_MSC_VER) +#pragma once +#endif + +/* Utilities for emulation of variadic template functions. Variadic packs are + * replaced by lists of BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS parameters: + * + * - typename... Args --> BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK + * - Args&&... args --> BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK + * - std::forward<Args>(args)... --> BOOST_MULTI_INDEX_FORWARD_PARAM_PACK + * + * Forwarding emulated with Boost.Move. A template functions foo_imp + * defined in such way accepts *exactly* BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS + * arguments: variable number of arguments is emulated by providing a set of + * overloads foo forwarding to foo_impl with + * + * BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL + * BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG (initial extra arg) + * + * which fill the extra args with boost::multi_index::detail::noarg's. + * boost::multi_index::detail::vartempl_placement_new works the opposite + * way: it acceps a full a pointer x to Value and a + * BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK and forwards to + * new(x) Value(args) where args is the argument pack after discarding + * noarg's. + * + * Emulation decays to the real thing when the compiler supports variadic + * templates and move semantics natively. + */ + +#include <boost/config.hpp> + +#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)||\ + defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) + +#include <boost/move/core.hpp> +#include <boost/move/utility.hpp> +#include <boost/preprocessor/arithmetic/add.hpp> +#include <boost/preprocessor/arithmetic/sub.hpp> +#include <boost/preprocessor/cat.hpp> +#include <boost/preprocessor/control/if.hpp> +#include <boost/preprocessor/facilities/empty.hpp> +#include <boost/preprocessor/facilities/intercept.hpp> +#include <boost/preprocessor/logical/and.hpp> +#include <boost/preprocessor/punctuation/comma.hpp> +#include <boost/preprocessor/punctuation/comma_if.hpp> +#include <boost/preprocessor/repetition/enum.hpp> +#include <boost/preprocessor/repetition/enum_params.hpp> +#include <boost/preprocessor/repetition/repeat_from_to.hpp> +#include <boost/preprocessor/seq/elem.hpp> + +#if !defined(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS) +#define BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS 5 +#endif + +#define BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK \ +BOOST_PP_ENUM_PARAMS( \ + BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,typename T) + +#define BOOST_MULTI_INDEX_VARTEMPL_ARG(z,n,_) \ +BOOST_FWD_REF(BOOST_PP_CAT(T,n)) BOOST_PP_CAT(t,n) + +#define BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK \ +BOOST_PP_ENUM( \ + BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS, \ + BOOST_MULTI_INDEX_VARTEMPL_ARG,~) + +#define BOOST_MULTI_INDEX_VARTEMPL_FORWARD_ARG(z,n,_) \ +boost::forward<BOOST_PP_CAT(T,n)>(BOOST_PP_CAT(t,n)) + +#define BOOST_MULTI_INDEX_FORWARD_PARAM_PACK \ +BOOST_PP_ENUM( \ + BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS, \ + BOOST_MULTI_INDEX_VARTEMPL_FORWARD_ARG,~) + +namespace boost{namespace multi_index{namespace detail{ +struct noarg{}; +}}} + +/* call vartempl function without args */ + +#define BOOST_MULTI_INDEX_NULL_PARAM_PACK \ +BOOST_PP_ENUM_PARAMS( \ + BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS, \ + boost::multi_index::detail::noarg() BOOST_PP_INTERCEPT) + +#define BOOST_MULTI_INDEX_TEMPLATE_N(n) \ +template<BOOST_PP_ENUM_PARAMS(n,typename T)> + +#define BOOST_MULTI_INDEX_TEMPLATE_0(n) + +#define BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_AUX(z,n,data) \ +BOOST_PP_IF(n, \ + BOOST_MULTI_INDEX_TEMPLATE_N, \ + BOOST_MULTI_INDEX_TEMPLATE_0)(n) \ +BOOST_PP_SEQ_ELEM(0,data) /* ret */ \ +BOOST_PP_SEQ_ELEM(1,data) /* name_from */ ( \ + BOOST_PP_ENUM(n,BOOST_MULTI_INDEX_VARTEMPL_ARG,~)) \ +{ \ + return BOOST_PP_SEQ_ELEM(2,data) /* name_to */ ( \ + BOOST_PP_ENUM(n,BOOST_MULTI_INDEX_VARTEMPL_FORWARD_ARG,~) \ + BOOST_PP_COMMA_IF( \ + BOOST_PP_AND( \ + n,BOOST_PP_SUB(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,n))) \ + BOOST_PP_ENUM_PARAMS( \ + BOOST_PP_SUB(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,n), \ + boost::multi_index::detail::noarg() BOOST_PP_INTERCEPT) \ + ); \ +} + +#define BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL( \ + ret,name_from,name_to) \ +BOOST_PP_REPEAT_FROM_TO( \ + 0,BOOST_PP_ADD(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,1), \ + BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_AUX, \ + (ret)(name_from)(name_to)) + +#define BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG_AUX( \ + z,n,data) \ +BOOST_PP_IF(n, \ + BOOST_MULTI_INDEX_TEMPLATE_N, \ + BOOST_MULTI_INDEX_TEMPLATE_0)(n) \ +BOOST_PP_SEQ_ELEM(0,data) /* ret */ \ +BOOST_PP_SEQ_ELEM(1,data) /* name_from */ ( \ + BOOST_PP_SEQ_ELEM(3,data) BOOST_PP_SEQ_ELEM(4,data) /* extra arg */\ + BOOST_PP_COMMA_IF(n) \ + BOOST_PP_ENUM(n,BOOST_MULTI_INDEX_VARTEMPL_ARG,~)) \ +{ \ + return BOOST_PP_SEQ_ELEM(2,data) /* name_to */ ( \ + BOOST_PP_SEQ_ELEM(4,data) /* extra_arg_name */ \ + BOOST_PP_COMMA_IF(n) \ + BOOST_PP_ENUM(n,BOOST_MULTI_INDEX_VARTEMPL_FORWARD_ARG,~) \ + BOOST_PP_COMMA_IF( \ + BOOST_PP_SUB(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,n)) \ + BOOST_PP_ENUM_PARAMS( \ + BOOST_PP_SUB(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,n), \ + boost::multi_index::detail::noarg() BOOST_PP_INTERCEPT) \ + ); \ +} + +#define BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG( \ + ret,name_from,name_to,extra_arg_type,extra_arg_name) \ +BOOST_PP_REPEAT_FROM_TO( \ + 0,BOOST_PP_ADD(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,1), \ + BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG_AUX, \ + (ret)(name_from)(name_to)(extra_arg_type)(extra_arg_name)) + +namespace boost{ + +namespace multi_index{ + +namespace detail{ + +#define BOOST_MULTI_INDEX_VARTEMPL_TO_PLACEMENT_NEW_AUX(z,n,name) \ +template< \ + typename Value \ + BOOST_PP_COMMA_IF(n) \ + BOOST_PP_ENUM_PARAMS(n,typename T) \ +> \ +Value* name( \ + Value* x \ + BOOST_PP_COMMA_IF(n) \ + BOOST_PP_ENUM(n,BOOST_MULTI_INDEX_VARTEMPL_ARG,~) \ + BOOST_PP_COMMA_IF( \ + BOOST_PP_SUB(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,n)) \ + BOOST_PP_ENUM_PARAMS( \ + BOOST_PP_SUB(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,n), \ + BOOST_FWD_REF(noarg) BOOST_PP_INTERCEPT)) \ +{ \ + return new(x) Value( \ + BOOST_PP_ENUM(n,BOOST_MULTI_INDEX_VARTEMPL_FORWARD_ARG,~)); \ +} + +#define BOOST_MULTI_INDEX_VARTEMPL_TO_PLACEMENT_NEW(name) \ +BOOST_PP_REPEAT_FROM_TO( \ + 0,BOOST_PP_ADD(BOOST_MULTI_INDEX_LIMIT_VARTEMPL_ARGS,1), \ + BOOST_MULTI_INDEX_VARTEMPL_TO_PLACEMENT_NEW_AUX, \ + name) + +BOOST_MULTI_INDEX_VARTEMPL_TO_PLACEMENT_NEW(vartempl_placement_new) + +#undef BOOST_MULTI_INDEX_VARTEMPL_TO_PLACEMENT_NEW_AUX +#undef BOOST_MULTI_INDEX_VARTEMPL_TO_PLACEMENT_NEW + +} /* namespace multi_index::detail */ + +} /* namespace multi_index */ + +} /* namespace boost */ + +#else + +/* native variadic templates support */ + +#include <utility> + +#define BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK typename... Args +#define BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK Args&&... args +#define BOOST_MULTI_INDEX_FORWARD_PARAM_PACK std::forward<Args>(args)... +#define BOOST_MULTI_INDEX_NULL_PARAM_PACK + +#define BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL( \ + ret,name_from,name_to) \ +template<typename... Args> ret name_from(Args&&... args) \ +{ \ + return name_to(std::forward<Args>(args)...); \ +} + +#define BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG( \ + ret,name_from,name_to,extra_arg_type,extra_arg_name) \ +template<typename... Args> ret name_from( \ + extra_arg_type extra_arg_name,Args&&... args) \ +{ \ + return name_to(extra_arg_name,std::forward<Args>(args)...); \ +} + +namespace boost{ + +namespace multi_index{ + +namespace detail{ + +template<typename Value,typename... Args> +Value* vartempl_placement_new(Value*x,Args&&... args) +{ + return new(x) Value(std::forward<Args>(args)...); +} + +} /* namespace multi_index::detail */ + +} /* namespace multi_index */ + +} /* namespace boost */ + +#endif +#endif |