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Unordered: Move some things around.

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- Move `allocator_traits` before `construct_impl` so the
  `construct_impl` can be changed to use `allocator_traits`.
- Moved some move utilities out of `allocate.hpp` because they're
  really nothing to do with allocation and construction.

[SVN r80220]
This commit is contained in:
Daniel James
2012-08-25 21:52:28 +00:00
parent ff31c73970
commit 3a163b5449
2 changed files with 345 additions and 341 deletions
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656
include/boost/unordered/detail/allocate.hpp
View File

@ -167,347 +167,6 @@ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT, BOOST_UNORDERED_EARGS,
#endif
////////////////////////////////////////////////////////////////////////////
// rvalue parameters when type can't be a BOOST_RV_REF(T) parameter
// e.g. for int
#if !defined(BOOST_NO_RVALUE_REFERENCES)
# define BOOST_UNORDERED_RV_REF(T) BOOST_RV_REF(T)
#else
struct please_ignore_this_overload {
typedef please_ignore_this_overload type;
};
template <typename T>
struct rv_ref_impl {
typedef BOOST_RV_REF(T) type;
};
template <typename T>
struct rv_ref :
boost::detail::if_true<
boost::is_class<T>::value
>::BOOST_NESTED_TEMPLATE then <
boost::unordered::detail::rv_ref_impl<T>,
please_ignore_this_overload
>::type
{};
# define BOOST_UNORDERED_RV_REF(T) \
typename boost::unordered::detail::rv_ref<T>::type
#endif
////////////////////////////////////////////////////////////////////////////
// Construct from tuple
//
// Used for piecewise construction.
#if !defined(__SUNPRO_CC)
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(n, namespace_) \
template<typename T> \
void construct_from_tuple(T* ptr, namespace_ tuple<>) \
{ \
new ((void*) ptr) T(); \
} \
\
BOOST_PP_REPEAT_FROM_TO(1, n, \
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL, namespace_)
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL(z, n, namespace_) \
template<typename T, BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)> \
void construct_from_tuple(T* ptr, \
namespace_ tuple<BOOST_PP_ENUM_PARAMS_Z(z, n, A)> const& x) \
{ \
new ((void*) ptr) T( \
BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_GET_TUPLE_ARG, namespace_) \
); \
}
# define BOOST_UNORDERED_GET_TUPLE_ARG(z, n, namespace_) \
namespace_ get<n>(x)
#else
template <int N> struct length {};
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(n, namespace_) \
template<typename T> \
void construct_from_tuple_impl( \
boost::unordered::detail::length<0>, T* ptr, \
namespace_ tuple<>) \
{ \
new ((void*) ptr) T(); \
} \
\
BOOST_PP_REPEAT_FROM_TO(1, n, \
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL, namespace_)
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL(z, n, namespace_) \
template<typename T, BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)> \
void construct_from_tuple_impl( \
boost::unordered::detail::length<n>, T* ptr, \
namespace_ tuple<BOOST_PP_ENUM_PARAMS_Z(z, n, A)> const& x) \
{ \
new ((void*) ptr) T( \
BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_GET_TUPLE_ARG, namespace_) \
); \
}
# define BOOST_UNORDERED_GET_TUPLE_ARG(z, n, namespace_) \
namespace_ get<n>(x)
#endif
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(10, boost::)
#if !defined(__SUNPRO_CC) && !defined(BOOST_NO_CXX11_HDR_TUPLE)
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(10, std::)
#endif
#undef BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE
#undef BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL
#undef BOOST_UNORDERED_GET_TUPLE_ARG
#if defined(__SUNPRO_CC)
template <typename T, typename Tuple>
void construct_from_tuple(T* ptr, Tuple const& x)
{
construct_from_tuple_impl(
boost::unordered::detail::length<
boost::tuples::length<Tuple>::value>(),
ptr, x);
}
#endif
////////////////////////////////////////////////////////////////////////////
// SFINAE traits for construction.
// Decide which construction method to use for a three argument
// call. Note that this is difficult to do using overloads because
// the arguments are packed into 'emplace_args3'.
//
// The decision is made on the first argument.
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
struct emulation1 {
static choice1::type test(choice1, std::pair<A, B> const&);
static choice2::type test(choice2, A const&);
static choice3::type test(choice3, convert_from_anything const&);
enum { value =
sizeof(test(choose(), boost::unordered::detail::make<A0>())) ==
sizeof(choice2::type) };
};
#endif
template <typename A, typename B, typename A0>
struct check3_base {
static choice1::type test(choice1,
boost::unordered::piecewise_construct_t);
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
static choice2::type test(choice2, A const&);
#endif
static choice3::type test(choice3, ...);
enum { value =
sizeof(test(choose(), boost::unordered::detail::make<A0>())) };
};
template <typename A, typename B, typename A0>
struct piecewise3 {
enum { value = check3_base<A,B,A0>::value == sizeof(choice1::type) };
};
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
struct emulation3 {
enum { value = check3_base<A,B,A0>::value == sizeof(choice2::type) };
};
#endif
#if !defined(BOOST_NO_VARIADIC_TEMPLATES)
////////////////////////////////////////////////////////////////////////////
// Construct from variadic parameters
template <typename T, typename... Args>
inline void construct_impl(T* address, BOOST_FWD_REF(Args)... args)
{
new((void*) address) T(boost::forward<Args>(args)...);
}
template <typename A, typename B, typename A0, typename A1, typename A2>
inline typename enable_if<piecewise3<A, B, A0>, void>::type
construct_impl(std::pair<A, B>* address,
BOOST_FWD_REF(A0), BOOST_FWD_REF(A1) a1, BOOST_FWD_REF(A2) a2)
{
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->first), boost::forward<A1>(a1));
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->second), boost::forward<A2>(a2));
}
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
inline typename enable_if<emulation1<A, B, A0>, void>::type
construct_impl(std::pair<A, B>* address, BOOST_FWD_REF(A0) a0)
{
new((void*) boost::addressof(address->first)) A(boost::forward<A0>(a0));
new((void*) boost::addressof(address->second)) B();
}
template <typename A, typename B, typename A0, typename A1, typename A2>
inline typename enable_if<emulation3<A, B, A0>, void>::type
construct_impl(std::pair<A, B>* address,
BOOST_FWD_REF(A0) a0, BOOST_FWD_REF(A1) a1, BOOST_FWD_REF(A2) a2)
{
new((void*) boost::addressof(address->first)) A(boost::forward<A0>(a0));
new((void*) boost::addressof(address->second)) B(
boost::forward<A1>(a1),
boost::forward<A2>(a2));
}
template <typename A, typename B,
typename A0, typename A1, typename A2, typename A3,
typename... Args>
inline void construct_impl(std::pair<A, B>* address,
BOOST_FWD_REF(A0) a0, BOOST_FWD_REF(A1) a1, BOOST_FWD_REF(A2) a2,
BOOST_FWD_REF(A3) a3, BOOST_FWD_REF(Args)... args)
{
new((void*) boost::addressof(address->first)) A(boost::forward<A0>(a0));
new((void*) boost::addressof(address->second)) B(
boost::forward<A1>(a1),
boost::forward<A2>(a2),
boost::forward<A3>(a3),
boost::forward<Args>(args)...);
}
#endif // BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT
#else // BOOST_NO_VARIADIC_TEMPLATES
////////////////////////////////////////////////////////////////////////////////
// Construct from emplace_args
#define BOOST_UNORDERED_CONSTRUCT_IMPL(z, num_params, _) \
template < \
typename T, \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, typename A) \
> \
inline void construct_impl(T* address, \
boost::unordered::detail::BOOST_PP_CAT(emplace_args,num_params) < \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, A) \
> const& args) \
{ \
new((void*) address) T( \
BOOST_PP_ENUM_##z(num_params, BOOST_UNORDERED_CALL_FORWARD, \
args.a)); \
}
template <typename T, typename A0>
inline void construct_impl(T* address, emplace_args1<A0> const& args)
{
new((void*) address) T(boost::forward<A0>(args.a0));
}
template <typename T, typename A0, typename A1>
inline void construct_impl(T* address, emplace_args2<A0, A1> const& args)
{
new((void*) address) T(
boost::forward<A0>(args.a0),
boost::forward<A1>(args.a1)
);
}
template <typename T, typename A0, typename A1, typename A2>
inline void construct_impl(T* address, emplace_args3<A0, A1, A2> const& args)
{
new((void*) address) T(
boost::forward<A0>(args.a0),
boost::forward<A1>(args.a1),
boost::forward<A2>(args.a2)
);
}
BOOST_PP_REPEAT_FROM_TO(4, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_CONSTRUCT_IMPL, _)
#undef BOOST_UNORDERED_CONSTRUCT_IMPL
template <typename A, typename B, typename A0, typename A1, typename A2>
inline void construct_impl(std::pair<A, B>* address,
boost::unordered::detail::emplace_args3<A0, A1, A2> const& args,
typename enable_if<piecewise3<A, B, A0>, void*>::type = 0)
{
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->first), args.a1);
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->second), args.a2);
}
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
inline void construct_impl(std::pair<A, B>* address,
boost::unordered::detail::emplace_args1<A0> const& args,
typename enable_if<emulation1<A, B, A0>, void*>::type = 0)
{
new((void*) boost::addressof(address->first)) A(
boost::forward<A0>(args.a0));
new((void*) boost::addressof(address->second)) B();
}
template <typename A, typename B, typename A0, typename A1, typename A2>
inline void construct_impl(std::pair<A, B>* address,
boost::unordered::detail::emplace_args3<A0, A1, A2> const& args,
typename enable_if<emulation3<A, B, A0>, void*>::type = 0)
{
new((void*) boost::addressof(address->first)) A(
boost::forward<A0>(args.a0));
new((void*) boost::addressof(address->second)) B(
boost::forward<A1>(args.a1),
boost::forward<A2>(args.a2));
}
#define BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL(z, num_params, _) \
template <typename A, typename B, \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, typename A) \
> \
inline void construct_impl(std::pair<A, B>* address, \
boost::unordered::detail::BOOST_PP_CAT(emplace_args, num_params) < \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, A) \
> const& args) \
{ \
new((void*) boost::addressof(address->first)) A( \
boost::forward<A0>(args.a0)); \
new((void*) boost::addressof(address->second)) B( \
BOOST_PP_ENUM_##z(BOOST_PP_DEC(num_params), \
BOOST_UNORDERED_CALL_FORWARD2, args.a)); \
}
#define BOOST_UNORDERED_CALL_FORWARD2(z, i, a) \
BOOST_UNORDERED_CALL_FORWARD(z, BOOST_PP_INC(i), a)
BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL(1, 2, _)
BOOST_PP_REPEAT_FROM_TO(4, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL, _)
#undef BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL
#undef BOOST_UNORDERED_CALL_FORWARD2
#endif // BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT
#endif // BOOST_NO_VARIADIC_TEMPLATES
}}}
////////////////////////////////////////////////////////////////////////////////
@ -1098,6 +757,321 @@ namespace boost { namespace unordered { namespace detail {
#endif
namespace boost { namespace unordered { namespace detail {
////////////////////////////////////////////////////////////////////////////
// Construct from tuple
//
// Used for piecewise construction.
#if !defined(__SUNPRO_CC)
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(n, namespace_) \
template<typename T> \
void construct_from_tuple(T* ptr, namespace_ tuple<>) \
{ \
new ((void*) ptr) T(); \
} \
\
BOOST_PP_REPEAT_FROM_TO(1, n, \
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL, namespace_)
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL(z, n, namespace_) \
template<typename T, BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)> \
void construct_from_tuple(T* ptr, \
namespace_ tuple<BOOST_PP_ENUM_PARAMS_Z(z, n, A)> const& x) \
{ \
new ((void*) ptr) T( \
BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_GET_TUPLE_ARG, namespace_) \
); \
}
# define BOOST_UNORDERED_GET_TUPLE_ARG(z, n, namespace_) \
namespace_ get<n>(x)
#else
template <int N> struct length {};
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(n, namespace_) \
template<typename T> \
void construct_from_tuple_impl( \
boost::unordered::detail::length<0>, T* ptr, \
namespace_ tuple<>) \
{ \
new ((void*) ptr) T(); \
} \
\
BOOST_PP_REPEAT_FROM_TO(1, n, \
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL, namespace_)
# define BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL(z, n, namespace_) \
template<typename T, BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)> \
void construct_from_tuple_impl( \
boost::unordered::detail::length<n>, T* ptr, \
namespace_ tuple<BOOST_PP_ENUM_PARAMS_Z(z, n, A)> const& x) \
{ \
new ((void*) ptr) T( \
BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_GET_TUPLE_ARG, namespace_) \
); \
}
# define BOOST_UNORDERED_GET_TUPLE_ARG(z, n, namespace_) \
namespace_ get<n>(x)
#endif
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(10, boost::)
#if !defined(__SUNPRO_CC) && !defined(BOOST_NO_CXX11_HDR_TUPLE)
BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE(10, std::)
#endif
#undef BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE
#undef BOOST_UNORDERED_CONSTRUCT_FROM_TUPLE_IMPL
#undef BOOST_UNORDERED_GET_TUPLE_ARG
#if defined(__SUNPRO_CC)
template <typename T, typename Tuple>
void construct_from_tuple(T* ptr, Tuple const& x)
{
construct_from_tuple_impl(
boost::unordered::detail::length<
boost::tuples::length<Tuple>::value>(),
ptr, x);
}
#endif
////////////////////////////////////////////////////////////////////////////
// SFINAE traits for construction.
// Decide which construction method to use for a three argument
// call. Note that this is difficult to do using overloads because
// the arguments are packed into 'emplace_args3'.
//
// The decision is made on the first argument.
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
struct emulation1 {
static choice1::type test(choice1, std::pair<A, B> const&);
static choice2::type test(choice2, A const&);
static choice3::type test(choice3, convert_from_anything const&);
enum { value =
sizeof(test(choose(), boost::unordered::detail::make<A0>())) ==
sizeof(choice2::type) };
};
#endif
template <typename A, typename B, typename A0>
struct check3_base {
static choice1::type test(choice1,
boost::unordered::piecewise_construct_t);
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
static choice2::type test(choice2, A const&);
#endif
static choice3::type test(choice3, ...);
enum { value =
sizeof(test(choose(), boost::unordered::detail::make<A0>())) };
};
template <typename A, typename B, typename A0>
struct piecewise3 {
enum { value = check3_base<A,B,A0>::value == sizeof(choice1::type) };
};
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
struct emulation3 {
enum { value = check3_base<A,B,A0>::value == sizeof(choice2::type) };
};
#endif
#if !defined(BOOST_NO_VARIADIC_TEMPLATES)
////////////////////////////////////////////////////////////////////////////
// Construct from variadic parameters
template <typename T, typename... Args>
inline void construct_impl(T* address, BOOST_FWD_REF(Args)... args)
{
new((void*) address) T(boost::forward<Args>(args)...);
}
template <typename A, typename B, typename A0, typename A1, typename A2>
inline typename enable_if<piecewise3<A, B, A0>, void>::type
construct_impl(std::pair<A, B>* address,
BOOST_FWD_REF(A0), BOOST_FWD_REF(A1) a1, BOOST_FWD_REF(A2) a2)
{
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->first), boost::forward<A1>(a1));
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->second), boost::forward<A2>(a2));
}
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
inline typename enable_if<emulation1<A, B, A0>, void>::type
construct_impl(std::pair<A, B>* address, BOOST_FWD_REF(A0) a0)
{
new((void*) boost::addressof(address->first)) A(boost::forward<A0>(a0));
new((void*) boost::addressof(address->second)) B();
}
template <typename A, typename B, typename A0, typename A1, typename A2>
inline typename enable_if<emulation3<A, B, A0>, void>::type
construct_impl(std::pair<A, B>* address,
BOOST_FWD_REF(A0) a0, BOOST_FWD_REF(A1) a1, BOOST_FWD_REF(A2) a2)
{
new((void*) boost::addressof(address->first)) A(boost::forward<A0>(a0));
new((void*) boost::addressof(address->second)) B(
boost::forward<A1>(a1),
boost::forward<A2>(a2));
}
template <typename A, typename B,
typename A0, typename A1, typename A2, typename A3,
typename... Args>
inline void construct_impl(std::pair<A, B>* address,
BOOST_FWD_REF(A0) a0, BOOST_FWD_REF(A1) a1, BOOST_FWD_REF(A2) a2,
BOOST_FWD_REF(A3) a3, BOOST_FWD_REF(Args)... args)
{
new((void*) boost::addressof(address->first)) A(boost::forward<A0>(a0));
new((void*) boost::addressof(address->second)) B(
boost::forward<A1>(a1),
boost::forward<A2>(a2),
boost::forward<A3>(a3),
boost::forward<Args>(args)...);
}
#endif // BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT
#else // BOOST_NO_VARIADIC_TEMPLATES
////////////////////////////////////////////////////////////////////////////////
// Construct from emplace_args
#define BOOST_UNORDERED_CONSTRUCT_IMPL(z, num_params, _) \
template < \
typename T, \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, typename A) \
> \
inline void construct_impl(T* address, \
boost::unordered::detail::BOOST_PP_CAT(emplace_args,num_params) < \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, A) \
> const& args) \
{ \
new((void*) address) T( \
BOOST_PP_ENUM_##z(num_params, BOOST_UNORDERED_CALL_FORWARD, \
args.a)); \
}
template <typename T, typename A0>
inline void construct_impl(T* address, emplace_args1<A0> const& args)
{
new((void*) address) T(boost::forward<A0>(args.a0));
}
template <typename T, typename A0, typename A1>
inline void construct_impl(T* address, emplace_args2<A0, A1> const& args)
{
new((void*) address) T(
boost::forward<A0>(args.a0),
boost::forward<A1>(args.a1)
);
}
template <typename T, typename A0, typename A1, typename A2>
inline void construct_impl(T* address, emplace_args3<A0, A1, A2> const& args)
{
new((void*) address) T(
boost::forward<A0>(args.a0),
boost::forward<A1>(args.a1),
boost::forward<A2>(args.a2)
);
}
BOOST_PP_REPEAT_FROM_TO(4, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_CONSTRUCT_IMPL, _)
#undef BOOST_UNORDERED_CONSTRUCT_IMPL
template <typename A, typename B, typename A0, typename A1, typename A2>
inline void construct_impl(std::pair<A, B>* address,
boost::unordered::detail::emplace_args3<A0, A1, A2> const& args,
typename enable_if<piecewise3<A, B, A0>, void*>::type = 0)
{
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->first), args.a1);
boost::unordered::detail::construct_from_tuple(
boost::addressof(address->second), args.a2);
}
#if defined(BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT)
template <typename A, typename B, typename A0>
inline void construct_impl(std::pair<A, B>* address,
boost::unordered::detail::emplace_args1<A0> const& args,
typename enable_if<emulation1<A, B, A0>, void*>::type = 0)
{
new((void*) boost::addressof(address->first)) A(
boost::forward<A0>(args.a0));
new((void*) boost::addressof(address->second)) B();
}
template <typename A, typename B, typename A0, typename A1, typename A2>
inline void construct_impl(std::pair<A, B>* address,
boost::unordered::detail::emplace_args3<A0, A1, A2> const& args,
typename enable_if<emulation3<A, B, A0>, void*>::type = 0)
{
new((void*) boost::addressof(address->first)) A(
boost::forward<A0>(args.a0));
new((void*) boost::addressof(address->second)) B(
boost::forward<A1>(args.a1),
boost::forward<A2>(args.a2));
}
#define BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL(z, num_params, _) \
template <typename A, typename B, \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, typename A) \
> \
inline void construct_impl(std::pair<A, B>* address, \
boost::unordered::detail::BOOST_PP_CAT(emplace_args, num_params) < \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, A) \
> const& args) \
{ \
new((void*) boost::addressof(address->first)) A( \
boost::forward<A0>(args.a0)); \
new((void*) boost::addressof(address->second)) B( \
BOOST_PP_ENUM_##z(BOOST_PP_DEC(num_params), \
BOOST_UNORDERED_CALL_FORWARD2, args.a)); \
}
#define BOOST_UNORDERED_CALL_FORWARD2(z, i, a) \
BOOST_UNORDERED_CALL_FORWARD(z, BOOST_PP_INC(i), a)
BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL(1, 2, _)
BOOST_PP_REPEAT_FROM_TO(4, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL, _)
#undef BOOST_UNORDERED_CONSTRUCT_PAIR_IMPL
#undef BOOST_UNORDERED_CALL_FORWARD2
#endif // BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT
#endif // BOOST_NO_VARIADIC_TEMPLATES
}}}
////////////////////////////////////////////////////////////////////////////////
//
// Some helper functions for allocating & constructing

30
include/boost/unordered/detail/buckets.hpp
View File

@ -1031,6 +1031,36 @@ namespace boost { namespace unordered { namespace detail {
tmp_functions_ = !tmp_functions_;
}
};
////////////////////////////////////////////////////////////////////////////
// rvalue parameters when type can't be a BOOST_RV_REF(T) parameter
// e.g. for int
#if !defined(BOOST_NO_RVALUE_REFERENCES)
# define BOOST_UNORDERED_RV_REF(T) BOOST_RV_REF(T)
#else
struct please_ignore_this_overload {
typedef please_ignore_this_overload type;
};
template <typename T>
struct rv_ref_impl {
typedef BOOST_RV_REF(T) type;
};
template <typename T>
struct rv_ref :
boost::detail::if_true<
boost::is_class<T>::value
>::BOOST_NESTED_TEMPLATE then <
boost::unordered::detail::rv_ref_impl<T>,
please_ignore_this_overload
>::type
{};
# define BOOST_UNORDERED_RV_REF(T) \
typename boost::unordered::detail::rv_ref<T>::type
#endif
}}}
#if defined(BOOST_MSVC)