allocator< _Tp > Class Template Reference

#include <_alloc.h>

Inheritance diagram for allocator< _Tp >:

Collaboration diagram for allocator< _Tp >:

Public Types
typedef _Tp	value_type
typedef _Tp *	pointer
typedef const _Tp *	const_pointer
typedef _Tp &	reference
typedef const _Tp &	const_reference
typedef size_t	size_type
typedef ptrdiff_t	difference_type
Public Types inherited from __stlport_class< allocator< _Tp > >
typedef allocator< _Tp >	_Type

Public Member Functions
	allocator () _STLP_NOTHROW
	allocator (const allocator< _Tp > &) _STLP_NOTHROW
	allocator (__move_source< allocator< _Tp > > src) _STLP_NOTHROW
	~allocator () _STLP_NOTHROW
pointer	address (reference __x) const
const_pointer	address (const_reference __x) const
_Tp *	allocate (size_type __n, const void *=0)
void	deallocate (pointer __p, size_type __n)
void	deallocate (pointer __p) const
size_type	max_size () const _STLP_NOTHROW
void	construct (pointer __p, const_reference __val)
void	destroy (pointer __p)
_Tp *	_M_allocate (size_type __n, size_type &__allocated_n)

Detailed Description

template<class _Tp>
class allocator< _Tp >

Definition at line 270 of file _alloc.h.

Member Typedef Documentation

const_pointer

template<class _Tp >

typedef const _Tp* allocator< _Tp >::const_pointer

Definition at line 279 of file _alloc.h.

const_reference

template<class _Tp >

typedef const _Tp& allocator< _Tp >::const_reference

Definition at line 281 of file _alloc.h.

difference_type

template<class _Tp >

typedef ptrdiff_t allocator< _Tp >::difference_type

Definition at line 283 of file _alloc.h.

pointer

template<class _Tp >

typedef _Tp* allocator< _Tp >::pointer

Definition at line 278 of file _alloc.h.

reference

template<class _Tp >

typedef _Tp& allocator< _Tp >::reference

Definition at line 280 of file _alloc.h.

size_type

template<class _Tp >

typedef size_t allocator< _Tp >::size_type

Definition at line 282 of file _alloc.h.

value_type

template<class _Tp >

typedef _Tp allocator< _Tp >::value_type

Definition at line 277 of file _alloc.h.

Constructor & Destructor Documentation

allocator() [1/3]

template<class _Tp >

allocator< _Tp >::allocator ( )

inline

Definition at line 289 of file _alloc.h.

{}

allocator() [2/3]

template<class _Tp >

allocator< _Tp >::allocator ( const allocator< _Tp > &  )

inline

Definition at line 293 of file _alloc.h.

{}

allocator() [3/3]

template<class _Tp >

allocator< _Tp >::allocator ( __move_source< allocator< _Tp > >  src )

inline

Definition at line 295 of file _alloc.h.

{}

~allocator()

template<class _Tp >

allocator< _Tp >::~allocator ( )

inline

Definition at line 297 of file _alloc.h.

{}

Member Function Documentation

_M_allocate()

template<class _Tp >

_Tp * allocator< _Tp >::_M_allocate ( size_type  __n, size_type &  __allocated_n  )

inline

Definition at line 341 of file _alloc.h.

                                                            {
    if (__n > max_size()) {
      _STLP_THROW_BAD_ALLOC;
    }
 
    if (__n != 0) {
      size_type __buf_size = __n * sizeof(value_type);
      _Tp* __ret = __REINTERPRET_CAST(_Tp*, __sgi_alloc::allocate(__buf_size));
#if defined (_STLP_DEBUG_UNINITIALIZED) && !defined (_STLP_DEBUG_ALLOC)
      memset((char*)__ret, _STLP_SHRED_BYTE, __buf_size);
#endif
      __allocated_n = __buf_size / sizeof(value_type);
      return __ret;
    }
 
    return 0;
  }

address() [1/2]

template<class _Tp >

const_pointer allocator< _Tp >::address ( const_reference  __x ) const

inline

Definition at line 299 of file _alloc.h.

{ return &__x; }

address() [2/2]

template<class _Tp >

pointer allocator< _Tp >::address ( reference  __x ) const

inline

Definition at line 298 of file _alloc.h.

{return &__x;}

allocate()

template<class _Tp >

_Tp * allocator< _Tp >::allocate ( size_type  __n, const void *  = 0  )

inline

Definition at line 301 of file _alloc.h.

                                                {
    if (__n > max_size()) {
      _STLP_THROW_BAD_ALLOC;
    }
    if (__n != 0) {
      size_type __buf_size = __n * sizeof(value_type);
      _Tp* __ret = __REINTERPRET_CAST(_Tp*, __sgi_alloc::allocate(__buf_size));
#if defined (_STLP_DEBUG_UNINITIALIZED) && !defined (_STLP_DEBUG_ALLOC)
      memset((char*)__ret, _STLP_SHRED_BYTE, __buf_size);
#endif
      return __ret;
    }
 
    return 0;
  }

Referenced by bad_alloc_test(), AllocatorTest::bad_alloc_test(), bad_alloc_test1(), and AllocatorTest::zero_allocation().

construct()

template<class _Tp >

void allocator< _Tp >::construct ( pointer  __p, const_reference  __val  )

inline

Definition at line 331 of file _alloc.h.

{ _STLP_STD::_Copy_Construct(__p, __val); }

deallocate() [1/2]

template<class _Tp >

void allocator< _Tp >::deallocate ( pointer  __p ) const

inline

Definition at line 328 of file _alloc.h.

{  if (__p != 0) __sgi_alloc::deallocate((void*)__p, sizeof(value_type)); }

deallocate() [2/2]

template<class _Tp >

void allocator< _Tp >::deallocate ( pointer  __p, size_type  __n  )

inline

Definition at line 317 of file _alloc.h.

                                              {
    _STLP_ASSERT( (__p == 0) == (__n == 0) )
    if (__p != 0) {
#if defined (_STLP_DEBUG_UNINITIALIZED) && !defined (_STLP_DEBUG_ALLOC)
      memset((char*)__p, _STLP_SHRED_BYTE, __n * sizeof(value_type));
#endif
      __sgi_alloc::deallocate((void*)__p, __n * sizeof(value_type));
    }
  }

destroy()

template<class _Tp >

void allocator< _Tp >::destroy ( pointer  __p )

inline

Definition at line 332 of file _alloc.h.

{ _STLP_STD::_Destroy(__p); }

max_size()

template<class _Tp >

size_type allocator< _Tp >::max_size ( ) const

inline

Definition at line 330 of file _alloc.h.

{ return size_t(-1) / sizeof(value_type); }

Referenced by allocator< _Tp >::_M_allocate(), and allocator< _Tp >::allocate().

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The documentation for this class was generated from the following file:

• sdk/include/c++/stlport/stl/_alloc.h