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Cleanup BOOST_MOVE_CONVERSION_AWARE_CATCH macros with is_same_or_convertible, which allows compatibility with more compilers and input iterators

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Ion Gaztañaga
2016-02-24 10:06:43 +01:00
parent 541f28037d
commit d247eea058
2 changed files with 84 additions and 59 deletions
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21
include/boost/move/detail/meta_utils.hpp
View File

@@ -312,6 +312,17 @@ class is_convertible
#endif
template <class T, class U, bool IsSame = is_same<T, U>::value>
struct is_same_or_convertible
: is_convertible<T, U>
{};
template <class T, class U>
struct is_same_or_convertible<T, U, true>
{
static const bool value = true;
};
template<
bool C
, typename F1
@@ -345,6 +356,16 @@ struct disable_if_convertible
: disable_if< is_convertible<T, U>, R>
{};
template<class T, class U, class R = void>
struct enable_if_same_or_convertible
: enable_if< is_same_or_convertible<T, U>, R>
{};
template<class T, class U, class R = void>
struct disable_if_same_or_convertible
: disable_if< is_same_or_convertible<T, U>, R>
{};
//////////////////////////////////////////////////////////////////////////////
//
// and_

122
include/boost/move/detail/move_helpers.hpp
View File

@@ -1,6 +1,6 @@
//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2010-2012.
// (C) Copyright Ion Gaztanaga 2010-2016.
// 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)
@@ -20,8 +20,9 @@
# pragma once
#endif
#include <boost/move/core.hpp>
#include <boost/move/utility_core.hpp>
#include <boost/move/detail/meta_utils.hpp>
#include <boost/move/detail/type_traits.hpp>
#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
@@ -43,6 +44,30 @@
////////////////////////////////////////
#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class TYPE>
struct boost_move_conversion_aware_catch_1
: public ::boost::move_detail::enable_if_and
< RETURN_VALUE
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>
, ::boost::move_detail::is_class<TYPE>
, ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM>
>
{};
template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class TYPE>
struct boost_move_conversion_aware_catch_2
: public ::boost::move_detail::disable_if_or
< RETURN_VALUE
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>
, ::boost::move_detail::is_rv_impl<BOOST_MOVE_TEMPL_PARAM>
, ::boost::move_detail::and_
< ::boost::move_detail::is_rv_impl<BOOST_MOVE_TEMPL_PARAM>
, ::boost::move_detail::is_class<BOOST_MOVE_TEMPL_PARAM>
>
>
{};
#define BOOST_MOVE_CONVERSION_AWARE_CATCH_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\
RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\
{ return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\
@@ -59,26 +84,14 @@
\
template<class BOOST_MOVE_TEMPL_PARAM>\
RETURN_VALUE PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u,\
typename ::boost::move_detail::enable_if_and\
< ::boost::move_detail::nat \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>\
, ::boost::move_detail::is_class<TYPE>\
, ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM>\
>::type* = 0)\
typename boost_move_conversion_aware_catch_1< ::boost::move_detail::nat, BOOST_MOVE_TEMPL_PARAM, TYPE>::type* = 0)\
{ return FWD_FUNCTION(u); }\
\
template<class BOOST_MOVE_TEMPL_PARAM>\
RETURN_VALUE PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u,\
typename ::boost::move_detail::disable_if_or\
< ::boost::move_detail::nat \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> \
, ::boost::move_detail::and_ \
< ::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM> \
, ::boost::move_detail::is_class<BOOST_MOVE_TEMPL_PARAM> \
> \
>::type* = 0)\
typename boost_move_conversion_aware_catch_2< ::boost::move_detail::nat, BOOST_MOVE_TEMPL_PARAM, TYPE>::type* = 0)\
{\
TYPE t(u);\
TYPE t((u));\
return FWD_FUNCTION(::boost::move(t));\
}\
//
@@ -87,27 +100,15 @@
BOOST_MOVE_CONVERSION_AWARE_CATCH_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\
\
template<class BOOST_MOVE_TEMPL_PARAM>\
typename ::boost::move_detail::enable_if_and\
< RETURN_VALUE \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>\
, ::boost::move_detail::is_class<TYPE>\
, ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM>\
>::type\
typename boost_move_conversion_aware_catch_1<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, TYPE>::type\
PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\
{ return FWD_FUNCTION(u); }\
\
template<class BOOST_MOVE_TEMPL_PARAM>\
typename ::boost::move_detail::disable_if_or\
< RETURN_VALUE \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> \
, ::boost::move_detail::and_ \
< ::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM> \
, ::boost::move_detail::is_class<BOOST_MOVE_TEMPL_PARAM> \
> \
>::type\
typename boost_move_conversion_aware_catch_2<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, TYPE>::type\
PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\
{\
TYPE t(u);\
TYPE t((u));\
return FWD_FUNCTION(::boost::move(t));\
}\
//
@@ -127,7 +128,7 @@
, RETURN_VALUE >::type\
PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\
{\
TYPE t(u);\
TYPE t((u));\
return FWD_FUNCTION(::boost::move(t));\
}\
//
@@ -151,6 +152,27 @@
////////////////////////////////////////
#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class UNLESS_CONVERTIBLE_TO, class TYPE>
struct boost_move_conversion_aware_catch_1arg_1
: public ::boost::move_detail::enable_if_and
< RETURN_VALUE
, ::boost::move_detail::not_< ::boost::move_detail::is_same_or_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO> >
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>
, ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM>
>
{};
template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class UNLESS_CONVERTIBLE_TO, class TYPE>
struct boost_move_conversion_aware_catch_1arg_2
: public ::boost::move_detail::disable_if_or
< RETURN_VALUE
, ::boost::move_detail::is_same_or_convertible< BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO>
, ::boost::move_detail::is_rv_impl<BOOST_MOVE_TEMPL_PARAM>
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>
>
{};
#define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\
RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\
{ return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\
@@ -167,23 +189,14 @@
\
template<class BOOST_MOVE_TEMPL_PARAM>\
RETURN_VALUE PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u,\
typename ::boost::move_detail::enable_if_and\
< ::boost::move_detail::nat \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>\
, ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM>\
>::type* = 0)\
typename boost_move_conversion_aware_catch_1arg_1<void, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type* = 0)\
{ return FWD_FUNCTION(arg1, u); }\
\
template<class BOOST_MOVE_TEMPL_PARAM>\
RETURN_VALUE PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u,\
typename ::boost::move_detail::disable_if_or\
< void \
, ::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM>\
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>\
, ::boost::move_detail::is_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO>\
>::type* = 0)\
typename boost_move_conversion_aware_catch_1arg_2<void, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type* = 0)\
{\
TYPE t(u);\
TYPE t((u));\
return FWD_FUNCTION(arg1, ::boost::move(t));\
}\
//
@@ -192,24 +205,15 @@
BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\
\
template<class BOOST_MOVE_TEMPL_PARAM>\
typename ::boost::move_detail::enable_if_and\
< RETURN_VALUE \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>\
, ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM>\
>::type\
typename boost_move_conversion_aware_catch_1arg_1<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type\
PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\
{ return FWD_FUNCTION(arg1, u); }\
\
template<class BOOST_MOVE_TEMPL_PARAM>\
typename ::boost::move_detail::disable_if_or\
< RETURN_VALUE \
, ::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM>\
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>\
, ::boost::move_detail::is_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO>\
>::type\
typename boost_move_conversion_aware_catch_1arg_2<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type\
PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\
{\
TYPE t(u);\
TYPE t((u));\
return FWD_FUNCTION(arg1, ::boost::move(t));\
}\
//
@@ -228,11 +232,11 @@
typename ::boost::move_detail::disable_if_or\
< RETURN_VALUE \
, ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> \
, ::boost::move_detail::is_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO> \
, ::boost::move_detail::is_same_or_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO> \
>::type\
PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\
{\
TYPE t(u);\
TYPE t((u));\
return FWD_FUNCTION(arg1, ::boost::move(t));\
}\
//