| /* Copyright 2006-2014 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/flyweight for library home page. |
| */ |
| |
| #ifndef BOOST_FLYWEIGHT_DETAIL_DYN_PERFECT_FWD_HPP |
| #define BOOST_FLYWEIGHT_DETAIL_DYN_PERFECT_FWD_HPP |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <boost/config.hpp> |
| |
| #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) |
| |
| #include <boost/preprocessor/arithmetic/add.hpp> |
| #include <boost/preprocessor/cat.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/seq.hpp> |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_ARG(z,n,_) \ |
| BOOST_PP_CAT(T,n)&& BOOST_PP_CAT(t,n) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_N_AUX(n,name,body) \ |
| template<BOOST_PP_ENUM_PARAMS(n,typename T)> \ |
| name(BOOST_PP_ENUM(n,BOOST_FLYWEIGHT_PERFECT_FWD_ARG,~)) \ |
| body((FORWARD)(n)) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_N(z,n,data) \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_N_AUX( \ |
| n,BOOST_PP_SEQ_HEAD(data), \ |
| BOOST_PP_SEQ_HEAD(BOOST_PP_SEQ_TAIL(data))) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_WITH_ARGS(name,body) \ |
| BOOST_PP_REPEAT_FROM_TO( \ |
| 1,BOOST_PP_ADD(BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS,1), \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_N,(name)(body)) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD(name,body) \ |
| name()body((ENUM)(0)) \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_WITH_ARGS(name,body) |
| |
| #else |
| |
| /* no rvalue refs -> [const] Tn& overloads */ |
| |
| #include <boost/preprocessor/arithmetic/add.hpp> |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/preprocessor/repetition/enum.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| #include <boost/preprocessor/repetition/repeat.hpp> |
| #include <boost/preprocessor/repetition/repeat_from_to.hpp> |
| #include <boost/preprocessor/seq/elem.hpp> |
| #include <boost/preprocessor/seq/for_each_product.hpp> |
| #include <boost/preprocessor/seq/seq.hpp> |
| #include <boost/preprocessor/seq/size.hpp> |
| |
| #define BOOST_FLYWEIGHT_CONST(b) BOOST_PP_CAT(BOOST_FLYWEIGHT_CONST,b) |
| #define BOOST_FLYWEIGHT_CONST0 |
| #define BOOST_FLYWEIGHT_CONST1 const |
| |
| /* if mask[n]==0 --> Tn& tn |
| * if mask[n]==1 --> const Tn& tn |
| */ |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_ARG(z,n,mask) \ |
| BOOST_FLYWEIGHT_CONST(BOOST_PP_SEQ_ELEM(n,mask)) \ |
| BOOST_PP_CAT(T,n)& BOOST_PP_CAT(t,n) |
| |
| /* overload accepting size(mask) args, where the template args are |
| * marked const or not according to the given mask (a seq of 0 or 1) |
| */ |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_MASK_AUX(r,name,body,mask) \ |
| template<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(mask),typename T)> \ |
| name( \ |
| BOOST_PP_ENUM( \ |
| BOOST_PP_SEQ_SIZE(mask),BOOST_FLYWEIGHT_PERFECT_FWD_ARG,mask)) \ |
| body((ENUM)(BOOST_PP_SEQ_SIZE(mask))) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_MASK(r,data) \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_MASK_AUX( \ |
| r, \ |
| BOOST_PP_SEQ_ELEM(0,BOOST_PP_SEQ_HEAD(data)), \ |
| BOOST_PP_SEQ_ELEM(1,BOOST_PP_SEQ_HEAD(data)), \ |
| BOOST_PP_SEQ_TAIL(data)) |
| |
| #define BOOST_FLYWEIGHT_01(z,n,_) ((0)(1)) |
| |
| /* Perfect forwarding overloads accepting 1 to n args */ |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_N(z,n,data) \ |
| BOOST_PP_SEQ_FOR_EACH_PRODUCT( \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_MASK, \ |
| ((data)) \ |
| BOOST_PP_REPEAT(n,BOOST_FLYWEIGHT_01,~)) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD_WITH_ARGS(name,body) \ |
| BOOST_PP_REPEAT_FROM_TO( \ |
| 1,BOOST_PP_ADD(BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS,1), \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_N,(name)(body)) |
| |
| #define BOOST_FLYWEIGHT_PERFECT_FWD(name,body) \ |
| name()body((ENUM)(0)) \ |
| BOOST_FLYWEIGHT_PERFECT_FWD_WITH_ARGS(name,body) |
| |
| #endif |
| #endif |