libstdc++
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#include <bitmap_allocator.h>
Public Types | |
typedef free_list::__mutex_type | __mutex_type |
typedef const _Tp * | const_pointer |
typedef const _Tp & | const_reference |
typedef ptrdiff_t | difference_type |
typedef _Tp * | pointer |
typedef std::true_type | propagate_on_container_move_assignment |
typedef _Tp & | reference |
typedef size_t | size_type |
typedef _Tp | value_type |
Public Member Functions | |
bitmap_allocator (const bitmap_allocator &) noexcept | |
template<typename _Tp1 > | |
bitmap_allocator (const bitmap_allocator< _Tp1 > &) noexcept | |
pointer | _M_allocate_single_object () |
void | _M_deallocate_single_object (pointer __p) throw () |
const_pointer | address (const_reference __r) const noexcept |
pointer | address (reference __r) const noexcept |
pointer | allocate (size_type __n) |
pointer | allocate (size_type __n, typename bitmap_allocator< void >::const_pointer) |
template<typename _Up , typename... _Args> | |
void | construct (_Up *__p, _Args &&... __args) |
void | deallocate (pointer __p, size_type __n) throw () |
template<typename _Up > | |
void | destroy (_Up *__p) |
size_type | max_size () const noexcept |
Bitmap Allocator, primary template.
Definition at line 687 of file bitmap_allocator.h.
typedef free_list::__mutex_type __gnu_cxx::bitmap_allocator< _Tp >::__mutex_type |
Definition at line 697 of file bitmap_allocator.h.
typedef const _Tp* __gnu_cxx::bitmap_allocator< _Tp >::const_pointer |
Definition at line 693 of file bitmap_allocator.h.
typedef const _Tp& __gnu_cxx::bitmap_allocator< _Tp >::const_reference |
Definition at line 695 of file bitmap_allocator.h.
typedef ptrdiff_t __gnu_cxx::bitmap_allocator< _Tp >::difference_type |
Definition at line 691 of file bitmap_allocator.h.
typedef _Tp* __gnu_cxx::bitmap_allocator< _Tp >::pointer |
Definition at line 692 of file bitmap_allocator.h.
typedef std::true_type __gnu_cxx::bitmap_allocator< _Tp >::propagate_on_container_move_assignment |
Definition at line 708 of file bitmap_allocator.h.
typedef _Tp& __gnu_cxx::bitmap_allocator< _Tp >::reference |
Definition at line 694 of file bitmap_allocator.h.
typedef size_t __gnu_cxx::bitmap_allocator< _Tp >::size_type |
Definition at line 690 of file bitmap_allocator.h.
typedef _Tp __gnu_cxx::bitmap_allocator< _Tp >::value_type |
Definition at line 696 of file bitmap_allocator.h.
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inlinenoexcept |
Definition at line 1002 of file bitmap_allocator.h.
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inlinenoexcept |
Definition at line 1005 of file bitmap_allocator.h.
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inlinenoexcept |
Definition at line 1009 of file bitmap_allocator.h.
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inlinenoexcept |
Definition at line 1012 of file bitmap_allocator.h.
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inline |
Allocates memory for a single object of size sizeof(_Tp).
std::bad_alloc. | If memory can not be allocated. |
Complexity: Worst case complexity is O(N), but that is hardly ever hit. If and when this particular case is encountered, the next few cases are guaranteed to have a worst case complexity of O(1)! That's why this function performs very well on average. You can consider this function to have a complexity referred to commonly as: Amortized Constant time.
Definition at line 827 of file bitmap_allocator.h.
References __gnu_cxx::__detail::__bit_allocate(), __gnu_cxx::__detail::__num_bitmaps(), and __gnu_cxx::_Bit_scan_forward().
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inline |
Deallocates memory that belongs to a single object of size sizeof(_Tp).
Complexity: O(lg(N)), but the worst case is not hit often! This is because containers usually deallocate memory close to each other and this case is handled in O(1) time by the deallocate function.
Definition at line 917 of file bitmap_allocator.h.
References __gnu_cxx::__detail::__bit_free(), __gnu_cxx::__detail::__num_bitmaps(), and __gnu_cxx::free_list::_M_insert().
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inlinenoexcept |
Definition at line 1069 of file bitmap_allocator.h.
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inlinenoexcept |
Definition at line 1065 of file bitmap_allocator.h.
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inline |
Definition at line 1016 of file bitmap_allocator.h.
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inline |
Definition at line 1040 of file bitmap_allocator.h.
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inline |
Definition at line 1079 of file bitmap_allocator.h.
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inline |
Definition at line 1044 of file bitmap_allocator.h.
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inline |
Definition at line 1084 of file bitmap_allocator.h.
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inlinenoexcept |
Definition at line 1073 of file bitmap_allocator.h.