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Implement full support for non-pointer pointers in custom allocators for deque.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@184673 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2013-06-23 21:17:24 +00:00
parent 7a6b7cedcb
commit fcd8db7133
48 changed files with 943 additions and 294 deletions
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35
include/deque
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@@ -915,7 +915,14 @@ protected:
__pointer_allocator;
typedef allocator_traits<__pointer_allocator> __map_traits;
typedef typename __map_traits::pointer __map_pointer;
typedef typename __map_traits::const_pointer __map_const_pointer;
typedef typename __alloc_traits::template
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
rebind_alloc<const_pointer>
#else
rebind_alloc<const_pointer>::other
#endif
__const_pointer_allocator;
typedef typename allocator_traits<__const_pointer_allocator>::const_pointer __map_const_pointer;
typedef __split_buffer<pointer, __pointer_allocator> __map;
typedef __deque_iterator<value_type, pointer, reference, __map_pointer,
@@ -1053,7 +1060,7 @@ template <class _Tp, class _Allocator>
typename __deque_base<_Tp, _Allocator>::const_iterator
__deque_base<_Tp, _Allocator>::begin() const _NOEXCEPT
{
__map_const_pointer __mp = __map_.begin() + __start_ / __block_size;
__map_const_pointer __mp = static_cast<__map_const_pointer>(__map_.begin() + __start_ / __block_size);
return const_iterator(__mp, __map_.empty() ? 0 : *__mp + __start_ % __block_size);
}
@@ -1071,7 +1078,7 @@ typename __deque_base<_Tp, _Allocator>::const_iterator
__deque_base<_Tp, _Allocator>::end() const _NOEXCEPT
{
size_type __p = size() + __start_;
__map_const_pointer __mp = __map_.begin() + __p / __block_size;
__map_const_pointer __mp = static_cast<__map_const_pointer>(__map_.begin() + __p / __block_size);
return const_iterator(__mp, __map_.empty() ? 0 : *__mp + __p % __block_size);
}
@@ -1341,6 +1348,8 @@ public:
_LIBCPP_INLINE_VISIBILITY
bool __invariants() const {return __base::__invariants();}
private:
typedef typename __base::__map_const_pointer __map_const_pointer;
_LIBCPP_INLINE_VISIBILITY
static size_type __recommend_blocks(size_type __n)
{
@@ -2505,9 +2514,9 @@ void
deque<_Tp, _Allocator>::pop_front()
{
allocator_type& __a = __base::__alloc();
__alloc_traits::destroy(__a, *(__base::__map_.begin() +
__base::__start_ / __base::__block_size) +
__base::__start_ % __base::__block_size);
__alloc_traits::destroy(__a, __to_raw_pointer(*(__base::__map_.begin() +
__base::__start_ / __base::__block_size) +
__base::__start_ % __base::__block_size));
--__base::size();
if (++__base::__start_ >= 2 * __base::__block_size)
{
@@ -2523,9 +2532,9 @@ deque<_Tp, _Allocator>::pop_back()
{
allocator_type& __a = __base::__alloc();
size_type __p = __base::size() + __base::__start_ - 1;
__alloc_traits::destroy(__a, *(__base::__map_.begin() +
__p / __base::__block_size) +
__p % __base::__block_size);
__alloc_traits::destroy(__a, __to_raw_pointer(*(__base::__map_.begin() +
__p / __base::__block_size) +
__p % __base::__block_size));
--__base::size();
if (__back_spare() >= 2 * __base::__block_size)
{
@@ -2556,7 +2565,7 @@ deque<_Tp, _Allocator>::__move_and_check(iterator __f, iterator __l, iterator __
__fe = __fb + __bs;
}
if (__fb <= __vt && __vt < __fe)
__vt = (const_iterator(__f.__m_iter_, __vt) -= __f - __r).__ptr_;
__vt = (const_iterator(static_cast<__map_const_pointer>(__f.__m_iter_), __vt) -= __f - __r).__ptr_;
__r = _VSTD::move(__fb, __fe, __r);
__n -= __bs;
__f += __bs;
@@ -2587,7 +2596,7 @@ deque<_Tp, _Allocator>::__move_backward_and_check(iterator __f, iterator __l, it
__lb = __le - __bs;
}
if (__lb <= __vt && __vt < __le)
__vt = (const_iterator(__l.__m_iter_, __vt) += __r - __l - 1).__ptr_;
__vt = (const_iterator(static_cast<__map_const_pointer>(__l.__m_iter_), __vt) += __r - __l - 1).__ptr_;
__r = _VSTD::move_backward(__lb, __le, __r);
__n -= __bs;
__l -= __bs - 1;
@@ -2618,7 +2627,7 @@ deque<_Tp, _Allocator>::__move_construct_and_check(iterator __f, iterator __l,
__fe = __fb + __bs;
}
if (__fb <= __vt && __vt < __fe)
__vt = (const_iterator(__f.__m_iter_, __vt) += __r - __f).__ptr_;
__vt = (const_iterator(static_cast<__map_const_pointer>(__f.__m_iter_), __vt) += __r - __f).__ptr_;
for (; __fb != __fe; ++__fb, ++__r, ++__base::size())
__alloc_traits::construct(__a, _VSTD::addressof(*__r), _VSTD::move(*__fb));
__n -= __bs;
@@ -2654,7 +2663,7 @@ deque<_Tp, _Allocator>::__move_construct_backward_and_check(iterator __f, iterat
__lb = __le - __bs;
}
if (__lb <= __vt && __vt < __le)
__vt = (const_iterator(__l.__m_iter_, __vt) -= __l - __r + 1).__ptr_;
__vt = (const_iterator(static_cast<__map_const_pointer>(__l.__m_iter_), __vt) -= __l - __r + 1).__ptr_;
while (__le != __lb)
{
__alloc_traits::construct(__a, _VSTD::addressof(*--__r), _VSTD::move(*--__le));