std:: default_accessor
|
Defined in header
<mdspan>
|
||
|
template
<
class
ElementType
>
class default_accessor ; |
(since C++23) | |
A specialization of
std::default_accessor
class template is the default
AccessorPolicy
used by
std::mdspan
if no user-specified accessor policy is provided.
Each specialization of
default_accessor
models
semiregular
and is
TriviallyCopyable
.
Template parameters
| ElementType | - | the element type. Shall be a complete object type that is neither an abstract class type nor an array type. Otherwise, the program is ill-formed |
Member types
| Member type | Definition |
offset_policy
|
default_accessor
|
element_type
|
ElementType
|
reference
|
ElementType&
|
data_handle_type
|
ElementType*
|
Member functions
|
(constructor)
|
constructs a
default_accessor
(public member function) |
|
access
|
returns a n
th
element provided by arguments
(public member function) |
|
offset
|
returns a data handle advanced by an offset value
(public member function) |
std::default_accessor:: default_accessor
|
constexpr
default_accessor
(
)
noexcept
=
default
;
|
(1) | |
|
template
<
class
OtherElementType
>
constexpr default_accessor ( default_accessor < OtherElementType > ) noexcept { } |
(2) | |
default_accessor
.
default_accessor
from
default_accessor
<
OtherElementType
>
. The constructor has no visible effect. This overload participates in overload resolution only if
std::
is_convertible_v
<
OtherElementType
(
*
)
[
]
, element_type
(
*
)
[
]
>
is true.
std::default_accessor:: access
|
constexpr
reference access
(
data_handle_type p,
std::
size_t
i
)
const
noexcept
;
|
||
Equivalent to return p [ i ] ; .
std::default_accessor:: offset
|
constexpr
data_handle_type offset
(
data_handle_type p,
std::
size_t
i
)
const
noexcept
;
|
||
Equivalent to return p + i ; .
Example
|
This section is incomplete
Reason: no example |