tbb::zero_allocator< T, Allocator > Class Template Reference

Meets "allocator" requirements of ISO C++ Standard, Section 20.1.5. More...

#include <tbb_allocator.h>

Inheritance diagram for tbb::zero_allocator< T, Allocator >:

Collaboration diagram for tbb::zero_allocator< T, Allocator >:

Classes
struct	rebind

Public Types
typedef Allocator< T >	base_allocator_type
typedef base_allocator_type::value_type	value_type
typedef base_allocator_type::pointer	pointer
typedef base_allocator_type::const_pointer	const_pointer
typedef base_allocator_type::reference	reference
typedef base_allocator_type::const_reference	const_reference
typedef base_allocator_type::size_type	size_type
typedef base_allocator_type::difference_type	difference_type

Public Member Functions
	zero_allocator () throw ()
	zero_allocator (const zero_allocator &a) throw ()
template<typename U >
	zero_allocator (const zero_allocator< U > &a) throw ()
pointer	allocate (const size_type n, const void *hint=0)

Detailed Description

template<typename T, template< typename X > class Allocator = tbb_allocator>
class tbb::zero_allocator< T, Allocator >

Meets "allocator" requirements of ISO C++ Standard, Section 20.1.5.

The class is an adapter over an actual allocator that fills the allocation using memset function with template argument C as the value. The members are ordered the same way they are in section 20.4.1 of the ISO C++ standard.

Definition at line 151 of file tbb_allocator.h.

Member Typedef Documentation

base_allocator_type

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef Allocator<T> tbb::zero_allocator< T, Allocator >::base_allocator_type

Definition at line 154 of file tbb_allocator.h.

const_pointer

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::const_pointer tbb::zero_allocator< T, Allocator >::const_pointer

Definition at line 157 of file tbb_allocator.h.

const_reference

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::const_reference tbb::zero_allocator< T, Allocator >::const_reference

Definition at line 159 of file tbb_allocator.h.

difference_type

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::difference_type tbb::zero_allocator< T, Allocator >::difference_type

Definition at line 161 of file tbb_allocator.h.

pointer

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::pointer tbb::zero_allocator< T, Allocator >::pointer

Definition at line 156 of file tbb_allocator.h.

reference

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::reference tbb::zero_allocator< T, Allocator >::reference

Definition at line 158 of file tbb_allocator.h.

size_type

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::size_type tbb::zero_allocator< T, Allocator >::size_type

Definition at line 160 of file tbb_allocator.h.

value_type

template<typename T, template< typename X > class Allocator = tbb_allocator>

typedef base_allocator_type::value_type tbb::zero_allocator< T, Allocator >::value_type

Definition at line 155 of file tbb_allocator.h.

Constructor & Destructor Documentation

zero_allocator() [1/3]

template<typename T, template< typename X > class Allocator = tbb_allocator>

tbb::zero_allocator< T, Allocator >::zero_allocator ( ) throw ( )

inline

Definition at line 166 of file tbb_allocator.h.

{ }

zero_allocator() [2/3]

template<typename T, template< typename X > class Allocator = tbb_allocator>

tbb::zero_allocator< T, Allocator >::zero_allocator ( const zero_allocator< T, Allocator > &  a ) throw ( )

inline

Definition at line 167 of file tbb_allocator.h.

: base_allocator_type( a ) { }

zero_allocator() [3/3]

template<typename T, template< typename X > class Allocator = tbb_allocator>

template<typename U >

tbb::zero_allocator< T, Allocator >::zero_allocator ( const zero_allocator< U > &  a ) throw ( )

inline

Definition at line 169 of file tbb_allocator.h.

: base_allocator_type( Allocator<U>( a ) ) { }

Member Function Documentation

allocate()

template<typename T, template< typename X > class Allocator = tbb_allocator>

pointer tbb::zero_allocator< T, Allocator >::allocate ( const size_type  n, const void *  hint = 0  )

inline

Definition at line 171 of file tbb_allocator.h.

                                                               {
        pointer ptr = base_allocator_type::allocate( n, hint );
        std::memset( static_cast<void*>(ptr), 0, n * sizeof(value_type) );
        return ptr;
    }

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

• tbb_allocator.h