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Experimenting with a new forward fomulation (kudos Daniel Kruegler), updated insert iterators to work better with pproxies, and doubled the speed of __next_prime.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@113731 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2010-09-13 01:43:27 +00:00
parent a0f1dc9f46
commit d2a9251977
3 changed files with 228 additions and 154 deletions
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12
include/iterator
View File

@@ -151,7 +151,7 @@ public:
typedef void pointer;
explicit back_insert_iterator(Container& x);
back_insert_iterator& operator=(typename Container::const_reference value);
back_insert_iterator& operator=(const typename _Container::value_type& value);
back_insert_iterator& operator*();
back_insert_iterator& operator++();
back_insert_iterator operator++(int);
@@ -172,7 +172,7 @@ public:
typedef void pointer;
explicit front_insert_iterator(Container& x);
front_insert_iterator& operator=(typename Container::const_reference value);
front_insert_iterator& operator=(const typename _Container::value_type& value);
front_insert_iterator& operator*();
front_insert_iterator& operator++();
front_insert_iterator operator++(int);
@@ -194,7 +194,7 @@ public:
typedef void pointer;
insert_iterator(Container& x, typename Container::iterator i);
insert_iterator& operator=(typename Container::const_reference value);
insert_iterator& operator=(const typename _Container::value_type& value);
insert_iterator& operator*();
insert_iterator& operator++();
insert_iterator& operator++(int);
@@ -624,7 +624,7 @@ public:
typedef _Container container_type;
_LIBCPP_INLINE_VISIBILITY explicit back_insert_iterator(_Container& __x) : container(&__x) {}
_LIBCPP_INLINE_VISIBILITY back_insert_iterator& operator=(typename _Container::const_reference __value)
_LIBCPP_INLINE_VISIBILITY back_insert_iterator& operator=(const typename _Container::value_type& __value)
{container->push_back(__value); return *this;}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY back_insert_iterator& operator=(typename _Container::value_type&& __value)
@@ -657,7 +657,7 @@ public:
typedef _Container container_type;
_LIBCPP_INLINE_VISIBILITY explicit front_insert_iterator(_Container& __x) : container(&__x) {}
_LIBCPP_INLINE_VISIBILITY front_insert_iterator& operator=(typename _Container::const_reference __value)
_LIBCPP_INLINE_VISIBILITY front_insert_iterator& operator=(const typename _Container::value_type& __value)
{container->push_front(__value); return *this;}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY front_insert_iterator& operator=(typename _Container::value_type&& __value)
@@ -692,7 +692,7 @@ public:
_LIBCPP_INLINE_VISIBILITY insert_iterator(_Container& __x, typename _Container::iterator __i)
: container(&__x), iter(__i) {}
_LIBCPP_INLINE_VISIBILITY insert_iterator& operator=(typename _Container::const_reference __value)
_LIBCPP_INLINE_VISIBILITY insert_iterator& operator=(const typename _Container::value_type& __value)
{iter = container->insert(iter, __value); ++iter; return *this;}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY insert_iterator& operator=(typename _Container::value_type&& __value)

24
include/type_traits
View File

@@ -1302,6 +1302,28 @@ move(_Tp&& __t)
return static_cast<typename remove_reference<_Tp>::type&&>(__t);
}
#if 1
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp&&
forward(typename std::remove_reference<_Tp>::type& __t)
{
return static_cast<_Tp&&>(__t);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp&&
forward(typename std::remove_reference<_Tp>::type&& __t)
{
static_assert(!std::is_lvalue_reference<_Tp>::value,
"Can not forward an rvalue as an lvalue.");
return static_cast<_Tp&&>(__t);
}
#else
template <class _Tp,
class = typename enable_if<
!is_lvalue_reference<_Tp>::value
@@ -1346,6 +1368,8 @@ template <class _Tp,
_Tp
forward(typename remove_reference<_Tp>::type&& __t) = delete;
#endif
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>