View of an array of elements of type T. More...

#include <arccore/base/Span.h>

Public Types
using	ThatClass = SmallSpan<T, Extent>
using	BaseClass = SpanImpl<T, Int32, Extent>
using	size_type = Int32
using	value_type = typename BaseClass::value_type
using	pointer = typename BaseClass::pointer
template<typename X>
using	is_same_const_type = std::enable_if_t<std::is_same_v<X, T> \|\| std::is_same_v<std::add_const_t<X>, T>>
Public Types inherited from Arcane::SpanImpl< T, Int32, Extent >
using	ThatClass
using	SubSpanType
using	size_type
using	ElementType
using	element_type
using	value_type
using	const_value_type
using	index_type
using	difference_type
using	pointer
using	const_pointer
using	reference
using	const_reference
using	iterator
using	const_iterator
using	view_type
using	reverse_iterator
using	const_reverse_iterator
using	is_same_const_type
	Indicates if 'X' or 'const X' can be converted to 'T'.

Public Member Functions
	SmallSpan ()=default
	Constructs an empty view.
constexpr __host__ __device__	SmallSpan (const ArrayView< value_type > &from) noexcept
	Copy constructor from another view.
template<typename X, typename = std::enable_if_t<std::is_same<X, value_type>::value>>
constexpr __host__ __device__	SmallSpan (const ConstArrayView< X > &from) noexcept
template<typename X, typename = std::enable_if_t<std::is_same<X, value_type>::value>>
constexpr __host__ __device__	SmallSpan (const SmallSpan< X > &from) noexcept
template<Int32 XExtent>
constexpr __host__ __device__	SmallSpan (const SpanImpl< T, Int32, XExtent > &from) noexcept
constexpr __host__ __device__	SmallSpan (pointer ptr, Int32 asize) noexcept
template<std::size_t N, typename X, typename = is_same_const_type<X>>
constexpr __host__ __device__	SmallSpan (std::array< X, N > &from)
constexpr __host__ __device__	SmallSpan (T *ptr)
	Constructs a view from a pointer with a fixed size.
template<std::size_t N, typename X, typename = is_same_const_type<X>>
constexpr __host__ __device__ ThatClass &	operator= (std::array< X, N > &from)
	Copy assignment operator.
constexpr __host__ __device__ SmallSpan< T, DynExtent >	subspan (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SmallSpan< T, DynExtent >	subSpan (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SmallSpan< T, DynExtent >	subPart (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SmallSpan< T, DynExtent >	subSpanInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
constexpr __host__ __device__ ThatClass	subPartInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
constexpr __host__ __device__ SmallSpan< T >	subView (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SmallSpan< T >	subViewInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
Public Member Functions inherited from Arcane::SpanImpl< T, Int32, Extent >
constexpr __host__ __device__	SpanImpl () noexcept
	Constructs an empty view.
constexpr __host__ __device__	SpanImpl (const SpanImpl< X, Int32, XExtent > &from) noexcept
	Copy constructor from another view.
constexpr __host__ __device__	SpanImpl (const SpanImpl< T, Int32, XExtent > &from) noexcept
constexpr __host__ __device__	SpanImpl (pointer ptr, Int32 asize) noexcept
constexpr __host__ __device__	SpanImpl (std::array< X, N > &from)
	Constructs a view from a std::array.
constexpr __host__ __device__	SpanImpl (T *ptr)
	Constructs a view from a pointer with a fixed size.
constexpr __host__ __device__ ThatClass &	operator= (std::array< X, N > &from)
	Copy assignment operator.
constexpr __host__ __device__ reference	operator[] (Int32 i) const
	i-th element of the array.
constexpr __host__ __device__ reference	operator() (Int32 i) const
	i-th element of the array.
constexpr __host__ __device__ reference	item (Int32 i) const
	i-th element of the array.
constexpr __host__ __device__ void	setItem (Int32 i, const_reference v) noexcept
	Sets the i-th element of the array.
constexpr __host__ __device__ Int32	size () const noexcept
	Returns the size of the array.
constexpr __host__ __device__ Int32	sizeBytes () const noexcept
	Returns the size of the array in bytes.
constexpr __host__ __device__ Int32	length () const noexcept
	Number of elements in the array.
constexpr __host__ __device__ iterator	begin () const noexcept
	Iterator for the first element of the array.
constexpr __host__ __device__ iterator	end () const noexcept
	Iterator for the element after the end of the array.
constexpr __host__ __device__ reverse_iterator	rbegin () const noexcept
	Reverse iterator for the first element of the array.
constexpr __host__ __device__ reverse_iterator	rend () const noexcept
	Reverse iterator for the element after the end of the array.
ArrayRange< pointer >	range () const
	Iteration range from the first to the last element.
constexpr __host__ __device__ pointer	ptrAt (Int32 index) const
	Address of the index-th element.
constexpr __host__ __device__ reference	at (Int32 i) const
constexpr __host__ __device__ void	setAt (Int32 i, const_reference value)
__host__ __device__ void	fill (T o)
	Fills the array with the value o.
constexpr view_type	smallView ()
	Constant view of this view.
constexpr ConstArrayView< value_type >	constSmallView () const
	Constant view of this view.
constexpr __host__ __device__ SubSpanType	subSpan (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SubSpanType	subPart (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr SubSpanType	subView (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SubSpanType	subspan (Int32 abegin, Int32 asize) const
	For C++20 compatibility.
constexpr SubSpanType	subViewInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
constexpr SubSpanType	subSpanInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
constexpr SubSpanType	subPartInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
__host__ __device__ void	copy (const U &copy_array)
	Copies the array copy_array into the instance.
constexpr __host__ __device__ bool	empty () const noexcept
	Returns true if the array is empty (zero dimension).
__host__ __device__ bool	contains (const_reference v) const
	Returns true if the array contains the element with value v.
std::optional< Int32 >	findFirst (const_reference v) const
constexpr __host__ __device__ void	setArray (const ArrayView< T > &v) noexcept
constexpr __host__ __device__ void	setArray (const Span< T > &v) noexcept
constexpr __host__ __device__ pointer	data () const noexcept
	Pointer to the start of the view.
constexpr __host__ __device__	SpanImpl () noexcept
	Constructs an empty view.
constexpr __host__ __device__	SpanImpl (const SpanImpl< X, Int32, XExtent > &from) noexcept
	Copy constructor from another view.
constexpr __host__ __device__	SpanImpl (const SpanImpl< T, Int32, XExtent > &from) noexcept
constexpr __host__ __device__	SpanImpl (pointer ptr, Int32 asize) noexcept
constexpr __host__ __device__	SpanImpl (std::array< X, N > &from)
	Constructs a view from a std::array.
constexpr __host__ __device__	SpanImpl (T *ptr)
	Constructs a view from a pointer with a fixed size.
constexpr __host__ __device__ ThatClass &	operator= (std::array< X, N > &from)
	Copy assignment operator.
constexpr __host__ __device__ reference	operator[] (Int32 i) const
	i-th element of the array.
constexpr __host__ __device__ reference	operator() (Int32 i) const
	i-th element of the array.
constexpr __host__ __device__ reference	item (Int32 i) const
	i-th element of the array.
constexpr __host__ __device__ void	setItem (Int32 i, const_reference v) noexcept
	Sets the i-th element of the array.
constexpr __host__ __device__ Int32	size () const noexcept
	Returns the size of the array.
constexpr __host__ __device__ Int32	sizeBytes () const noexcept
	Returns the size of the array in bytes.
constexpr __host__ __device__ Int32	length () const noexcept
	Number of elements in the array.
constexpr __host__ __device__ iterator	begin () const noexcept
	Iterator for the first element of the array.
constexpr __host__ __device__ iterator	end () const noexcept
	Iterator for the element after the end of the array.
constexpr __host__ __device__ reverse_iterator	rbegin () const noexcept
	Reverse iterator for the first element of the array.
constexpr __host__ __device__ reverse_iterator	rend () const noexcept
	Reverse iterator for the element after the end of the array.
ArrayRange< pointer >	range () const
	Iteration range from the first to the last element.
constexpr __host__ __device__ pointer	ptrAt (Int32 index) const
	Address of the index-th element.
constexpr __host__ __device__ reference	at (Int32 i) const
constexpr __host__ __device__ void	setAt (Int32 i, const_reference value)
__host__ __device__ void	fill (T o)
	Fills the array with the value o.
constexpr view_type	smallView ()
	Constant view of this view.
constexpr ConstArrayView< value_type >	constSmallView () const
	Constant view of this view.
constexpr __host__ __device__ SubSpanType	subSpan (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SubSpanType	subPart (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr SubSpanType	subView (Int32 abegin, Int32 asize) const
	Sub-view starting from element abegin and containing asize elements.
constexpr __host__ __device__ SubSpanType	subspan (Int32 abegin, Int32 asize) const
	For C++20 compatibility.
constexpr SubSpanType	subViewInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
constexpr SubSpanType	subSpanInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
constexpr SubSpanType	subPartInterval (Int32 index, Int32 nb_interval) const
	Sub-view corresponding to the interval index over nb_interval.
__host__ __device__ void	copy (const U &copy_array)
	Copies the array copy_array into the instance.
constexpr __host__ __device__ bool	empty () const noexcept
	Returns true if the array is empty (zero dimension).
__host__ __device__ bool	contains (const_reference v) const
	Returns true if the array contains the element with value v.
std::optional< Int32 >	findFirst (const_reference v) const
constexpr __host__ __device__ void	setArray (const ArrayView< T > &v) noexcept
constexpr __host__ __device__ void	setArray (const Span< T > &v) noexcept
constexpr __host__ __device__ pointer	data () const noexcept
	Pointer to the start of the view.

Static Public Member Functions
static constexpr ThatClass	create (pointer ptr, size_type asize) noexcept
	Constructs a view over a memory region starting at ptr and.
Static Public Member Functions inherited from Arcane::SpanImpl< T, Int32, Extent >
static constexpr ThatClass	create (pointer ptr, Int32 asize) noexcept
	Constructs a view on a memory region starting at ptr and.
static constexpr ThatClass	create (pointer ptr, Int32 asize) noexcept
	Constructs a view on a memory region starting at ptr and.

Static Public Attributes
static constexpr bool	IsDynamic = (Extent == DynExtent)
Static Public Attributes inherited from Arcane::SpanImpl< T, Int32, Extent >
static constexpr bool	IsDynamic
static constexpr bool	IsDynamic

Additional Inherited Members
Protected Member Functions inherited from Arcane::SpanImpl< T, Int32, Extent >
constexpr void	_setArray (pointer v, Int32 s) noexcept
	Modifies the array pointer and size.
constexpr void	_setPtr (pointer v) noexcept
	Modifies the array start pointer.
constexpr void	_setSize (Int32 s) noexcept
	Modifies the array size.
constexpr void	_setArray (pointer v, Int32 s) noexcept
	Modifies the array pointer and size.
constexpr void	_setPtr (pointer v) noexcept
	Modifies the array start pointer.
constexpr void	_setSize (Int32 s) noexcept
	Modifies the array size.

Detailed Description

template<typename T, Int32 Extent>
class Arcane::SmallSpan< T, Extent >

View of an array of elements of type T.

The view is non-modifiable if the template argument is of type 'const T'.

This class allows accessing and using an array of elements of type T in the same way as a standard C array. It is similar to Span, except that the number of elements is stored as an 'Int32'.

Note: To be valid, the number of bytes associated with the view (sizeBytes()) must also fit within an Int32.

Definition at line 803 of file Span.h.

Member Typedef Documentation

◆ BaseClass

template<typename T, Int32 Extent>

using Arcane::SmallSpan< T, Extent >::BaseClass = SpanImpl<T, Int32, Extent>

Definition at line 809 of file Span.h.

◆ is_same_const_type

template<typename T, Int32 Extent>

template<typename X>

using Arcane::SmallSpan< T, Extent >::is_same_const_type = std::enable_if_t<std::is_same_v<X, T> || std::is_same_v<std::add_const_t<X>, T>>

Definition at line 814 of file Span.h.

◆ pointer

template<typename T, Int32 Extent>

using Arcane::SmallSpan< T, Extent >::pointer = typename BaseClass::pointer

Definition at line 812 of file Span.h.

◆ size_type

template<typename T, Int32 Extent>

using Arcane::SmallSpan< T, Extent >::size_type = Int32

Definition at line 810 of file Span.h.

◆ ThatClass

template<typename T, Int32 Extent>

using Arcane::SmallSpan< T, Extent >::ThatClass = SmallSpan<T, Extent>

Definition at line 808 of file Span.h.

◆ value_type

template<typename T, Int32 Extent>

using Arcane::SmallSpan< T, Extent >::value_type = typename BaseClass::value_type

Definition at line 811 of file Span.h.

Constructor & Destructor Documentation

◆ SmallSpan() [1/7]

template<typename T, Int32 Extent>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan ( const ArrayView< value_type > & from )

inlineconstexprnoexcept

Copy constructor from another view.

Definition at line 823 of file Span.h.

◆ SmallSpan() [2/7]

template<typename T, Int32 Extent>

template<typename X, typename = std::enable_if_t<std::is_same<X, value_type>::value>>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan ( const ConstArrayView< X > & from )

inlineconstexprnoexcept

Definition at line 830 of file Span.h.

◆ SmallSpan() [3/7]

template<typename T, Int32 Extent>

template<typename X, typename = std::enable_if_t<std::is_same<X, value_type>::value>>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan ( const SmallSpan< X > & from )

inlineconstexprnoexcept

Definition at line 836 of file Span.h.

◆ SmallSpan() [4/7]

template<typename T, Int32 Extent>

template<Int32 XExtent>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan ( const SpanImpl< T, Int32, XExtent > & from )

inlineconstexprnoexcept

Definition at line 841 of file Span.h.

◆ SmallSpan() [5/7]

template<typename T, Int32 Extent>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan	(	pointer	ptr,
		Int32	asize )

inlineconstexprnoexcept

Constructs a view over a memory region starting at ptr and containing asize elements.

Definition at line 847 of file Span.h.

◆ SmallSpan() [6/7]

template<typename T, Int32 Extent>

template<std::size_t N, typename X, typename = is_same_const_type<X>>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan ( std::array< X, N > & from )

inlineconstexpr

Definition at line 852 of file Span.h.

◆ SmallSpan() [7/7]

template<typename T, Int32 Extent>

__host__ __device__ Arcane::SmallSpan< T, Extent >::SmallSpan ( T * ptr )

inlineexplicitconstexpr

Constructs a view from a pointer with a fixed size.

Definition at line 857 of file Span.h.

Member Function Documentation

◆ create()

template<typename T, Int32 Extent>

constexpr ThatClass Arcane::SmallSpan< T, Extent >::create	(	pointer	ptr,
		size_type	asize )

inlinestaticconstexprnoexcept

Constructs a view over a memory region starting at ptr and.

Definition at line 873 of file Span.h.

◆ operator=()

template<typename T, Int32 Extent>

template<std::size_t N, typename X, typename = is_same_const_type<X>>

__host__ __device__ ThatClass & Arcane::SmallSpan< T, Extent >::operator= ( std::array< X, N > & from )

inlineconstexpr

Copy assignment operator.

Definition at line 863 of file Span.h.

◆ subPart()

template<typename T, Int32 Extent>

__host__ __device__ SmallSpan< T, DynExtent > Arcane::SmallSpan< T, Extent >::subPart	(	Int32	abegin,
		Int32	asize ) const

inlineconstexpr

Sub-view starting from element abegin and containing asize elements.

If (abegin+asize) is greater than the array size, the view is truncated to that size, possibly returning an empty view.

Definition at line 911 of file Span.h.

◆ subPartInterval()

template<typename T, Int32 Extent>

__host__ __device__ ThatClass Arcane::SmallSpan< T, Extent >::subPartInterval	(	Int32	index,
		Int32	nb_interval ) const

inlineconstexpr

Sub-view corresponding to the interval index over nb_interval.

Definition at line 923 of file Span.h.

◆ subSpan()

template<typename T, Int32 Extent>

__host__ __device__ SmallSpan< T, DynExtent > Arcane::SmallSpan< T, Extent >::subSpan	(	Int32	abegin,
		Int32	asize ) const

inlineconstexpr

Sub-view starting from element abegin and containing asize elements.

If (abegin+asize) is greater than the array size, the view is truncated to that size, possibly returning an empty view.

Definition at line 899 of file Span.h.

Referenced by Arcane::JaggedSmallSpan< DataType >::operator[]().

◆ subspan()

template<typename T, Int32 Extent>

__host__ __device__ SmallSpan< T, DynExtent > Arcane::SmallSpan< T, Extent >::subspan	(	Int32	abegin,
		Int32	asize ) const

inlineconstexpr

Sub-view starting from element abegin and containing asize elements.

If (abegin+asize is greater than the array size, the view is truncated to that size, possibly returning an empty view.

Definition at line 887 of file Span.h.

Referenced by Arcane::SmallSpan< Pointer >::subView().

◆ subSpanInterval()

template<typename T, Int32 Extent>

__host__ __device__ SmallSpan< T, DynExtent > Arcane::SmallSpan< T, Extent >::subSpanInterval	(	Int32	index,
		Int32	nb_interval ) const

inlineconstexpr

Sub-view corresponding to the interval index over nb_interval.

Definition at line 917 of file Span.h.

Referenced by Arcane::SmallSpan< Pointer >::subPartInterval().

◆ subView()

template<typename T, Int32 Extent>

__host__ __device__ SmallSpan< T > Arcane::SmallSpan< T, Extent >::subView	(	Int32	abegin,
		Int32	asize ) const

inlineconstexpr

Sub-view starting from element abegin and containing asize elements.

If (abegin+asize) is greater than the array size, the view is truncated to that size, possibly returning an empty view.

Definition at line 936 of file Span.h.

◆ subViewInterval()

template<typename T, Int32 Extent>

__host__ __device__ SmallSpan< T > Arcane::SmallSpan< T, Extent >::subViewInterval	(	Int32	index,
		Int32	nb_interval ) const

inlineconstexpr

Sub-view corresponding to the interval index over nb_interval.

Definition at line 943 of file Span.h.

Member Data Documentation

◆ IsDynamic

template<typename T, Int32 Extent>

bool Arcane::SmallSpan< T, Extent >::IsDynamic = (Extent == DynExtent)

staticconstexpr

Definition at line 815 of file Span.h.

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

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ BaseClass

◆ is_same_const_type

◆ pointer

◆ size_type

◆ ThatClass

◆ value_type

Constructor & Destructor Documentation

◆ SmallSpan() [1/7]

◆ SmallSpan() [2/7]

◆ SmallSpan() [3/7]

◆ SmallSpan() [4/7]

◆ SmallSpan() [5/7]

◆ SmallSpan() [6/7]

◆ SmallSpan() [7/7]

Member Function Documentation

◆ create()

◆ operator=()

◆ subPart()

◆ subPartInterval()

◆ subSpan()

◆ subspan()

◆ subSpanInterval()

◆ subView()

◆ subViewInterval()

Member Data Documentation

◆ IsDynamic