Collaboration diagram for Memory:

Topics
	Allocators

	Pointer Abstractions

	Pointer Safety and Garbage Collection

	Polymorphic memory resources

Files
file	memory

Functions
void *	std::align (size_t __align, size_t __size, void *&__ptr, size_t &__space) noexcept

template<size_t _Align, class _Tp>
constexpr _Tp *	std::assume_aligned (_Tp *__ptr) noexcept

template<typename _InputIterator, typename _ForwardIterator>
_ForwardIterator	std::uninitialized_copy (_InputIterator __first, _InputIterator __last, _ForwardIterator __result)

template<typename _InputIterator, typename _Size, typename _ForwardIterator>
_ForwardIterator	std::uninitialized_copy_n (_InputIterator __first, _Size __n, _ForwardIterator __result)

template<typename _ForwardIterator>
void	std::uninitialized_default_construct (_ForwardIterator __first, _ForwardIterator __last)

template<typename _ForwardIterator, typename _Size>
_ForwardIterator	std::uninitialized_default_construct_n (_ForwardIterator __first, _Size __count)

template<typename _ForwardIterator, typename _Tp>
void	std::uninitialized_fill (_ForwardIterator __first, _ForwardIterator __last, const _Tp &__x)

template<typename _ForwardIterator, typename _Size, typename _Tp>
_ForwardIterator	std::uninitialized_fill_n (_ForwardIterator __first, _Size __n, const _Tp &__x)

template<typename _InputIterator, typename _ForwardIterator>
_ForwardIterator	std::uninitialized_move (_InputIterator __first, _InputIterator __last, _ForwardIterator __result)

template<typename _InputIterator, typename _Size, typename _ForwardIterator>
pair< _InputIterator, _ForwardIterator >	std::uninitialized_move_n (_InputIterator __first, _Size __count, _ForwardIterator __result)

template<typename _ForwardIterator>
void	std::uninitialized_value_construct (_ForwardIterator __first, _ForwardIterator __last)

template<typename _ForwardIterator, typename _Size>
_ForwardIterator	std::uninitialized_value_construct_n (_ForwardIterator __first, _Size __count)

Detailed Description

Components for memory allocation, deallocation, and management.

Function Documentation

◆ align()

void * std::align	(	size_t	__align,
		size_t	__size,
		void *&	__ptr,
		size_t &	__space )

inlinenoexcept

Fit aligned storage in buffer.

This function tries to fit __size bytes of storage with alignment __align into the buffer __ptr of size __space bytes. If such a buffer fits then __ptr is changed to point to the first byte of the aligned storage and __space is reduced by the bytes used for alignment.

C++11 20.6.5 [ptr.align]

Parameters

__align	A fundamental or extended alignment value.
__size	Size of the aligned storage required.
__ptr	Pointer to a buffer of __space bytes.
__space	Size of the buffer pointed to by __ptr.

Returns: the updated pointer if the aligned storage fits, otherwise nullptr.

Definition at line 60 of file align.h.

◆ assume_aligned()

template<size_t _Align, class _Tp>

_Tp * std::assume_aligned ( _Tp * __ptr )

nodiscardconstexprnoexcept

Inform the compiler that a pointer is aligned.

Template Parameters

_Align	An alignment value (i.e. a power of two)
_Tp	An object type

Parameters

__ptr A pointer that is aligned to _Align

C++20 20.10.6 [ptr.align]

Definition at line 90 of file align.h.

◆ uninitialized_copy()

template<typename _InputIterator, typename _ForwardIterator>

_ForwardIterator std::uninitialized_copy	(	_InputIterator	__first,
		_InputIterator	__last,
		_ForwardIterator	__result )

inline

Copies the range [first,last) into result.

Parameters

__first	An input iterator.
__last	An input iterator.
__result	A forward iterator.

Returns: __result + (__last - __first)

Like std::copy, but does not require an initialized output range.

Definition at line 251 of file stl_uninitialized.h.

References to_address().

Referenced by __gnu_parallel::parallel_sort_mwms_pu(), and uninitialized_move().

◆ uninitialized_copy_n()

template<typename _InputIterator, typename _Size, typename _ForwardIterator>

_ForwardIterator std::uninitialized_copy_n	(	_InputIterator	__first,
		_Size	__n,
		_ForwardIterator	__result )

inline

Copies the range [first,first+n) into result.

Parameters

__first	An input iterator.
__n	The number of elements to copy.
__result	An output iterator.

Returns: __result + __n

Since: C++11

Like copy_n(), but does not require an initialized output range.

Definition at line 1174 of file stl_uninitialized.h.

References __iterator_category().

◆ uninitialized_default_construct()

template<typename _ForwardIterator>

void std::uninitialized_default_construct	(	_ForwardIterator	__first,
		_ForwardIterator	__last )

inline

Default-initializes objects in the range [first,last).

Parameters

__first	A forward iterator.
__last	A forward iterator.

Since: C++17

Definition at line 1203 of file stl_uninitialized.h.

◆ uninitialized_default_construct_n()

template<typename _ForwardIterator, typename _Size>

_ForwardIterator std::uninitialized_default_construct_n	(	_ForwardIterator	__first,
		_Size	__count )

inline

Default-initializes objects in the range [first,first+count).

Parameters

__first	A forward iterator.
__count	The number of objects to construct.

Returns: __first + __count

Since: C++17

Definition at line 1219 of file stl_uninitialized.h.

◆ uninitialized_fill()

template<typename _ForwardIterator, typename _Tp>

void std::uninitialized_fill	(	_ForwardIterator	__first,
		_ForwardIterator	__last,
		const _Tp &	__x )

inline

Copies the value x into the range [first,last).

Parameters

__first	A forward iterator.
__last	A forward iterator.
__x	The source value.

Returns: Nothing.

Like std::fill, but does not require an initialized output range.

Definition at line 412 of file stl_uninitialized.h.

References to_address().

◆ uninitialized_fill_n()

template<typename _ForwardIterator, typename _Size, typename _Tp>

_ForwardIterator std::uninitialized_fill_n	(	_ForwardIterator	__first,
		_Size	__n,
		const _Tp &	__x )

inline

Copies the value x into the range [first,first+n).

Parameters

__first	A forward iterator.
__n	The number of copies to make.
__x	The source value.

Returns: __first + __n.

Like std::fill_n, but does not require an initialized output range.

Definition at line 546 of file stl_uninitialized.h.

References to_address().

◆ uninitialized_move()

template<typename _InputIterator, typename _ForwardIterator>

_ForwardIterator std::uninitialized_move	(	_InputIterator	__first,
		_InputIterator	__last,
		_ForwardIterator	__result )

inline

Move-construct from the range [first,last) into result.

Parameters

__first	An input iterator.
__last	An input iterator.
__result	An output iterator.

Returns: __result + (__first - __last)

Since: C++17

Definition at line 1265 of file stl_uninitialized.h.

References uninitialized_copy().

◆ uninitialized_move_n()

template<typename _InputIterator, typename _Size, typename _ForwardIterator>

pair< _InputIterator, _ForwardIterator > std::uninitialized_move_n	(	_InputIterator	__first,
		_Size	__count,
		_ForwardIterator	__result )

inline

Move-construct from the range [first,first+count) into result.

Parameters

__first	An input iterator.
__count	The number of objects to initialize.
__result	An output iterator.

Returns: __result + __count

Since: C++17

Definition at line 1284 of file stl_uninitialized.h.

◆ uninitialized_value_construct()

template<typename _ForwardIterator>

void std::uninitialized_value_construct	(	_ForwardIterator	__first,
		_ForwardIterator	__last )

inline

Value-initializes objects in the range [first,last).

Parameters

__first	A forward iterator.
__last	A forward iterator.

Since: C++17

Definition at line 1233 of file stl_uninitialized.h.

◆ uninitialized_value_construct_n()

template<typename _ForwardIterator, typename _Size>

_ForwardIterator std::uninitialized_value_construct_n	(	_ForwardIterator	__first,
		_Size	__count )

inline

Value-initializes objects in the range [first,first+count).

Parameters

__first	A forward iterator.
__count	The number of objects to construct.

Returns: __result + __count

Since: C++17

Definition at line 1249 of file stl_uninitialized.h.

Topics

Files

Functions

Detailed Description

Function Documentation

◆ align()

◆ assume_aligned()

◆ uninitialized_copy()

◆ uninitialized_copy_n()

◆ uninitialized_default_construct()

◆ uninitialized_default_construct_n()

◆ uninitialized_fill()

◆ uninitialized_fill_n()

◆ uninitialized_move()

◆ uninitialized_move_n()

◆ uninitialized_value_construct()

◆ uninitialized_value_construct_n()