Dune Core Modules (2.4.1)
Dune::PoolAllocator< T, s > Class Template Reference
An allocator managing a pool of objects for reuse. More...
#include <dune/common/poolallocator.hh>
Classes | |
struct | rebind |
Rebind the allocator to another type. More... | |
Public Types | |
enum | { size =s*sizeof(value_type) } |
typedef T | value_type |
Type of the values we construct and allocate. | |
typedef T * | pointer |
The pointer type. | |
typedef const T * | const_pointer |
The constant pointer type. | |
typedef T & | reference |
The reference type. | |
typedef const T & | const_reference |
The constant reference type. | |
typedef std::size_t | size_type |
The size type. | |
typedef std::ptrdiff_t | difference_type |
The difference_type. | |
typedef Pool< T, size > | PoolType |
The type of the memory pool we use. | |
Public Member Functions | |
PoolAllocator () | |
Constructor. | |
template<typename U , std::size_t u> | |
PoolAllocator (const PoolAllocator< U, u > &) | |
Copy Constructor that does not copy the memory pool. | |
PoolAllocator (const PoolAllocator &) | |
Copy constructor that does not copy the memory pool. | |
pointer | allocate (std::size_t n, const_pointer hint=0) |
Allocates objects. More... | |
void | deallocate (pointer p, std::size_t n) |
Free objects. More... | |
void | construct (pointer p, const_reference value) |
Construct an object. More... | |
void | destroy (pointer p) |
Destroy an object without freeing memory. More... | |
pointer | address (reference x) const |
Convert a reference to a pointer. | |
const_pointer | address (const_reference x) const |
Convert a reference to a pointer. | |
int | max_size () const throw () |
Not correctly implemented, yet! | |
Detailed Description
template<class T, std::size_t s>
class Dune::PoolAllocator< T, s >
class Dune::PoolAllocator< T, s >
An allocator managing a pool of objects for reuse.
This allocator is specifically useful for small data types where new and delete are too expensive.
It uses a pool of memory chunks where the objects will be allocated. This means that assuming that N objects fit into memory only every N-th request for an object will result in memory allocation.
- Warning
- It is not suitable for the use in standard containers as it cannot allocate arrays of arbitrary size
- Template Parameters
-
T The type that will be allocated. s The number of elements to fit into one memory chunk.
Member Enumeration Documentation
◆ anonymous enum
template<class T , std::size_t s>
anonymous enum |
The documentation for this class was generated from the following file:
- dune/common/poolallocator.hh
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Legal Statements / Impressum |
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(Nov 12, 23:30, 2024)