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* Better header segregation (bug

Browse Source 
[@https://svn.boost.org/trac/boost/ticket/6524 #6524]).
*  Small documentation fixes
*  Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.

[SVN r81513]
This commit is contained in:
Ion Gaztañaga
2012-11-24 20:48:31 +00:00
parent b16287f72a
commit b4349e3fa7
10 changed files with 1416 additions and 1258 deletions
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include/boost/move/core.hpp
+309
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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2012-2012.
// 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/move for documentation.
//
//////////////////////////////////////////////////////////////////////////////
//! \file core.hpp
//! This header implements macros to define movable classes and
//! move-aware functions
#ifndef BOOST_MOVE_CORE_HPP
#define BOOST_MOVE_CORE_HPP
#include <boost/move/detail/config_begin.hpp>
#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
#include <boost/move/detail/meta_utils.hpp>
//Move emulation rv breaks standard aliasing rules so add workarounds for some compilers
#if defined(__GNUC__) && (__GNUC__ >= 4)
#define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS __attribute__((__may_alias__))
#else
#define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS
#endif
namespace boost {
//////////////////////////////////////////////////////////////////////////////
//
// struct rv
//
//////////////////////////////////////////////////////////////////////////////
template <class T>
class rv
: public ::boost::move_detail::if_c
< ::boost::move_detail::is_class_or_union<T>::value
, T
, ::boost::move_detail::empty
>::type
{
rv();
~rv();
rv(rv const&);
void operator=(rv const&);
} BOOST_MOVE_ATTRIBUTE_MAY_ALIAS;
//////////////////////////////////////////////////////////////////////////////
//
// move_detail::is_rv
//
//////////////////////////////////////////////////////////////////////////////
namespace move_detail {
template <class T>
struct is_rv
: ::boost::move_detail::integral_constant<bool, false>
{};
template <class T>
struct is_rv< rv<T> >
: ::boost::move_detail::integral_constant<bool, true>
{};
template <class T>
struct is_rv< const rv<T> >
: ::boost::move_detail::integral_constant<bool, true>
{};
} //namespace move_detail {
//////////////////////////////////////////////////////////////////////////////
//
// has_move_emulation_enabled
//
//////////////////////////////////////////////////////////////////////////////
template<class T>
struct has_move_emulation_enabled
: ::boost::move_detail::is_convertible< T, ::boost::rv<T>& >
{};
template<class T>
struct has_move_emulation_enabled<T&>
: ::boost::move_detail::integral_constant<bool, false>
{};
template<class T>
struct has_move_emulation_enabled< ::boost::rv<T> >
: ::boost::move_detail::integral_constant<bool, false>
{};
} //namespace boost {
#define BOOST_RV_REF(TYPE)\
::boost::rv< TYPE >& \
//
#define BOOST_RV_REF_2_TEMPL_ARGS(TYPE, ARG1, ARG2)\
::boost::rv< TYPE<ARG1, ARG2> >& \
//
#define BOOST_RV_REF_3_TEMPL_ARGS(TYPE, ARG1, ARG2, ARG3)\
::boost::rv< TYPE<ARG1, ARG2, ARG3> >& \
//
#define BOOST_RV_REF_BEG\
::boost::rv< \
//
#define BOOST_RV_REF_END\
>& \
//
#define BOOST_FWD_REF(TYPE)\
const TYPE & \
//
#define BOOST_CATCH_CONST_RLVALUE(TYPE)\
const ::boost::rv< TYPE >& \
//
#define BOOST_COPY_ASSIGN_REF(TYPE)\
const ::boost::rv< TYPE >& \
//
#define BOOST_COPY_ASSIGN_REF_BEG \
const ::boost::rv< \
//
#define BOOST_COPY_ASSIGN_REF_END \
>& \
//
#define BOOST_MOVE_COPY_ASSIGN_REF_2_TEMPL_ARGS(TYPE, ARG1, ARG2)\
const ::boost::rv< TYPE<ARG1, ARG2> >& \
//
#define BOOST_MOVE_COPY_ASSIGN_REF_3_TEMPL_ARGS(TYPE, ARG1, ARG2, ARG3)\
const ::boost::rv< TYPE<ARG1, ARG2, ARG3> >& \
//
//////////////////////////////////////////////////////////////////////////////
//
// BOOST_MOVABLE_BUT_NOT_COPYABLE
//
//////////////////////////////////////////////////////////////////////////////
#define BOOST_MOVABLE_BUT_NOT_COPYABLE(TYPE)\
private:\
TYPE(TYPE &);\
TYPE& operator=(TYPE &);\
public:\
operator ::boost::rv<TYPE>&() \
{ return *static_cast< ::boost::rv<TYPE>* >(this); }\
operator const ::boost::rv<TYPE>&() const \
{ return *static_cast<const ::boost::rv<TYPE>* >(this); }\
private:\
//
//////////////////////////////////////////////////////////////////////////////
//
// BOOST_COPYABLE_AND_MOVABLE
//
//////////////////////////////////////////////////////////////////////////////
#define BOOST_COPYABLE_AND_MOVABLE(TYPE)\
public:\
TYPE& operator=(TYPE &t)\
{ this->operator=(static_cast<const ::boost::rv<TYPE> &>(const_cast<const TYPE &>(t))); return *this;}\
public:\
operator ::boost::rv<TYPE>&() \
{ return *static_cast< ::boost::rv<TYPE>* >(this); }\
operator const ::boost::rv<TYPE>&() const \
{ return *static_cast<const ::boost::rv<TYPE>* >(this); }\
private:\
//
#define BOOST_COPYABLE_AND_MOVABLE_ALT(TYPE)\
public:\
operator ::boost::rv<TYPE>&() \
{ return *static_cast< ::boost::rv<TYPE>* >(this); }\
operator const ::boost::rv<TYPE>&() const \
{ return *static_cast<const ::boost::rv<TYPE>* >(this); }\
private:\
//
#else //BOOST_NO_CXX11_RVALUE_REFERENCES
//Compiler workaround detection
#if !defined(BOOST_MOVE_DOXYGEN_INVOKED)
#if defined(__GNUC__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 5) && !defined(__clang__)
//Pre-standard rvalue binding rules
#define BOOST_MOVE_OLD_RVALUE_REF_BINDING_RULES
#elif defined(_MSC_VER) && (_MSC_VER == 1600)
//Standard rvalue binding rules but with some bugs
#define BOOST_MOVE_MSVC_10_MEMBER_RVALUE_REF_BUG
//Use standard library for MSVC to avoid namespace issues as
//some move calls in the STL are not fully qualified.
//#define BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE
#endif
#endif
//! This macro marks a type as movable but not copyable, disabling copy construction
//! and assignment. The user will need to write a move constructor/assignment as explained
//! in the documentation to fully write a movable but not copyable class.
#define BOOST_MOVABLE_BUT_NOT_COPYABLE(TYPE)\
public:\
typedef int boost_move_emulation_t;\
private:\
TYPE(const TYPE &);\
TYPE& operator=(const TYPE &);\
//
//! This macro marks a type as copyable and movable.
//! The user will need to write a move constructor/assignment and a copy assignment
//! as explained in the documentation to fully write a copyable and movable class.
#define BOOST_COPYABLE_AND_MOVABLE(TYPE)\
//
#if !defined(BOOST_MOVE_DOXYGEN_INVOKED)
#define BOOST_COPYABLE_AND_MOVABLE_ALT(TYPE)\
//
#endif //#if !defined(BOOST_MOVE_DOXYGEN_INVOKED)
//!This trait yields to a compile-time true boolean if T was marked as
//!BOOST_MOVABLE_BUT_NOT_COPYABLE or BOOST_COPYABLE_AND_MOVABLE and
//!rvalue references are not available on the platform. False otherwise.
template<class T>
struct has_move_emulation_enabled
{
static const bool value = false;
};
//!This macro is used to achieve portable syntax in move
//!constructors and assignments for classes marked as
//!BOOST_COPYABLE_AND_MOVABLE or BOOST_MOVABLE_BUT_NOT_COPYABLE
#define BOOST_RV_REF(TYPE)\
TYPE && \
//
//!This macro is used to achieve portable syntax in move
//!constructors and assignments for template classes marked as
//!BOOST_COPYABLE_AND_MOVABLE or BOOST_MOVABLE_BUT_NOT_COPYABLE.
//!As macros have problems with comma-separatd template arguments,
//!the template argument must be preceded with BOOST_RV_REF_START
//!and ended with BOOST_RV_REF_END
#define BOOST_RV_REF_BEG\
\
//
//!This macro is used to achieve portable syntax in move
//!constructors and assignments for template classes marked as
//!BOOST_COPYABLE_AND_MOVABLE or BOOST_MOVABLE_BUT_NOT_COPYABLE.
//!As macros have problems with comma-separatd template arguments,
//!the template argument must be preceded with BOOST_RV_REF_START
//!and ended with BOOST_RV_REF_END
#define BOOST_RV_REF_END\
&& \
//!This macro is used to achieve portable syntax in copy
//!assignment for classes marked as BOOST_COPYABLE_AND_MOVABLE.
#define BOOST_COPY_ASSIGN_REF(TYPE)\
const TYPE & \
//
//! This macro is used to implement portable perfect forwarding
//! as explained in the documentation.
#define BOOST_FWD_REF(TYPE)\
TYPE && \
//
#if !defined(BOOST_MOVE_DOXYGEN_INVOKED)
/// @cond
#define BOOST_RV_REF_2_TEMPL_ARGS(TYPE, ARG1, ARG2)\
TYPE<ARG1, ARG2> && \
//
#define BOOST_RV_REF_3_TEMPL_ARGS(TYPE, ARG1, ARG2, ARG3)\
TYPE<ARG1, ARG2, ARG3> && \
//
#define BOOST_COPY_REF_2_TEMPL_ARGS(TYPE, ARG1, ARG2)\
const TYPE<ARG1, ARG2> & \
//
#define BOOST_COPY_REF_3_TEMPL_ARGS(TYPE, ARG1, ARG2, ARG3)\
TYPE<ARG1, ARG2, ARG3>& \
//
#define BOOST_CATCH_CONST_RLVALUE(TYPE)\
const TYPE & \
//
/// @endcond
#endif //#if !defined(BOOST_MOVE_DOXYGEN_INVOKED)
#endif //BOOST_NO_CXX11_RVALUE_REFERENCES
#include <boost/move/detail/config_end.hpp>
#endif //#ifndef BOOST_MOVE_CORE_HPP