28
Numerics library
[numerics]
28.6
Numeric arrays
[numarray]
28.6.5
Class template
slice_
array
[template.slice.array]
28.6.5.1
Overview
[template.slice.array.overview]
🔗
namespace
std
{
template
<
class
T
>
class
slice_array
{
public
:
using
value_type
=
T;
void
operator
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
*
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
/
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
%
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
+
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
-
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
^
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
&
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
|
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
<
<
=
(
const
valarray
<
T
>
&
)
const
;
void
operator
>
>
=
(
const
valarray
<
T
>
&
)
const
; slice_array
(
const
slice_array
&
)
;
~
slice_array
(
)
;
const
slice_array
&
operator
=
(
const
slice_array
&
)
const
;
void
operator
=
(
const
T
&
)
const
; slice_array
(
)
=
delete
;
// as implied by declaring copy constructor above
}
;
}
1
#
This template is a helper template used by the
slice
subscript operator
slice_array
<
T
>
valarray
<
T
>
::
operator
[
]
(
slice
)
;
2
#
It has reference semantics to a subset of an array specified by a
slice
object
.
[
Example
1
:
The expression
a
[
slice
(
1
,
5
,
3
)
]
=
b;
has the effect of assigning the elements of
b
to a slice of the elements in
a
.
For the slice shown, the elements selected from
a
are
1
,
4
,
…
,
13
.
—
end example
]