mbo::mem_reallocator< __ValueType > Class Template Reference

Allocator that supports reallocation working on malloc(). More...

#include <reallocator.h>

Inheritance diagram for mbo::mem_reallocator< __ValueType >:

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Collaboration diagram for mbo::mem_reallocator< __ValueType >:

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List of all members.

Public Member Functions
pointer	allocate (size_type size, std::allocator< void >::const_pointer hint=0L)
void	deallocate (pointer ptr, size_type)
pointer	reallocate (pointer ptr, size_type, size_type new_size)
void	move (pointer dst, pointer src, size_type size)

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Detailed Description

template<class __ValueType>
class mbo::mem_reallocator< __ValueType >

Allocator that supports reallocation working on malloc().

This allocator uses malloc(), realloc() and free() directly for elements space allocation/reallocation/deallocation.

This allocator uses memmove() directly when reallocating element space to copy elements from the orignal location to the new location without the need to call constructors and destructors (not even inplace destructors).

See also:

TDynamicArray

MBO_THROWS_EXCEPTIONS

Definition at line 232 of file reallocator.h.

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Member Function Documentation

template<class __ValueType>

pointer mbo::mem_reallocator< __ValueType >::allocate	(	size_type	size,
		std::allocator< void >::const_pointer	hint = 0L
	)			[inline]

Use malloc() to allocate size number of uninitialized elements

Parameters:

	size	number of elements to allocate
	hint	ignored here

Returns:

pointer to the allocated memory

Definition at line 242 of file reallocator.h.

References mbo_malloc.

    {
        return static_cast<pointer>(mbo_malloc(size * sizeof(value_type)));
    }

template<class __ValueType>

void mbo::mem_reallocator< __ValueType >::deallocate	(	pointer	ptr,
		size_type
	)			[inline]

Frees an element space

Parameters:

	ptr	original pointer
	size	number of elements (ignored)

Warning:

calls free(ptr) directly)

Definition at line 254 of file reallocator.h.

    {
        free(ptr);
    }

template<class __ValueType>

pointer mbo::mem_reallocator< __ValueType >::reallocate	(	pointer	ptr,
		size_type	,
		size_type	new_size
	)			[inline]

Reallocate element space using realloc()

Parameters:

	ptr	original pointer
	old_size	original number of elements (ignored)
	new_size	new number of elements

Returns:

reallocated element space

Warning:

Calls realloc(ptr, new_size * sizeof(value_type)) directly.

Note:

Does not use move().

Reimplemented from mbo::reallocator< __ValueType >.

Definition at line 269 of file reallocator.h.

References mbo_realloc.

    {
        return static_cast<pointer>(mbo_realloc(ptr, new_size * sizeof(value_type)));
    }

template<class __ValueType>

void mbo::mem_reallocator< __ValueType >::move	(	pointer	dst,
		pointer	src,
		size_type	size
	)			[inline]

Moves size elements from src to dst using memmove()

Parameters:

	dst	destination pointer
	src	source pointer
	size	number of elements to move

Warning:

Calls malloc(dst, src, size * sizeof(value_type)) directly.

Reimplemented from mbo::reallocator< __ValueType >.

Definition at line 282 of file reallocator.h.

    {
        memmove(dst, src, size * sizeof(value_type));
    }

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

• reallocator.h

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