tmp/tmpxeny0knb/{from.md → to.md}
RENAMED
|
@@ -0,0 +1,63 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
###### Constructors <a id="mdspan.layout.right.cons">[[mdspan.layout.right.cons]]</a>
|
| 2 |
+
|
| 3 |
+
``` cpp
|
| 4 |
+
constexpr mapping(const extents_type& e) noexcept;
|
| 5 |
+
```
|
| 6 |
+
|
| 7 |
+
*Preconditions:* The size of the multidimensional index space `e` is
|
| 8 |
+
representable as a value of type `index_type` [[basic.fundamental]].
|
| 9 |
+
|
| 10 |
+
*Effects:* Direct-non-list-initializes *extents\_* with `e`.
|
| 11 |
+
|
| 12 |
+
``` cpp
|
| 13 |
+
template<class OtherExtents>
|
| 14 |
+
constexpr explicit(!is_convertible_v<OtherExtents, extents_type>)
|
| 15 |
+
mapping(const mapping<OtherExtents>& other) noexcept;
|
| 16 |
+
```
|
| 17 |
+
|
| 18 |
+
*Constraints:* `is_constructible_v<extents_type, OtherExtents>` is
|
| 19 |
+
`true`.
|
| 20 |
+
|
| 21 |
+
*Preconditions:* `other.required_span_size()` is representable as a
|
| 22 |
+
value of type `index_type` [[basic.fundamental]].
|
| 23 |
+
|
| 24 |
+
*Effects:* Direct-non-list-initializes *extents\_* with
|
| 25 |
+
`other.extents()`.
|
| 26 |
+
|
| 27 |
+
``` cpp
|
| 28 |
+
template<class OtherExtents>
|
| 29 |
+
constexpr explicit(!is_convertible_v<OtherExtents, extents_type>)
|
| 30 |
+
mapping(const layout_left::mapping<OtherExtents>& other) noexcept;
|
| 31 |
+
```
|
| 32 |
+
|
| 33 |
+
*Constraints:*
|
| 34 |
+
|
| 35 |
+
- `extents_type::rank() <= 1` is `true`, and
|
| 36 |
+
- `is_constructible_v<extents_type, OtherExtents>` is `true`.
|
| 37 |
+
|
| 38 |
+
*Preconditions:* `other.required_span_size()` is representable as a
|
| 39 |
+
value of type `index_type` [[basic.fundamental]].
|
| 40 |
+
|
| 41 |
+
*Effects:* Direct-non-list-initializes *extents\_* with
|
| 42 |
+
`other.extents()`.
|
| 43 |
+
|
| 44 |
+
``` cpp
|
| 45 |
+
template<class OtherExtents>
|
| 46 |
+
constexpr explicit(extents_type::rank() > 0)
|
| 47 |
+
mapping(const layout_stride::mapping<OtherExtents>& other) noexcept;
|
| 48 |
+
```
|
| 49 |
+
|
| 50 |
+
*Constraints:* `is_constructible_v<extents_type, OtherExtents>` is
|
| 51 |
+
`true`.
|
| 52 |
+
|
| 53 |
+
*Preconditions:*
|
| 54 |
+
|
| 55 |
+
- If `extents_type::rank() > 0` is `true`, then for all r in the range
|
| 56 |
+
[0, `extents_type::rank()`), `other.stride(`r`)` equals
|
| 57 |
+
`other.extents().`*`rev-prod-of-extents`*`(`r`)`.
|
| 58 |
+
- `other.required_span_size()` is representable as a value of type
|
| 59 |
+
`index_type` [[basic.fundamental]].
|
| 60 |
+
|
| 61 |
+
*Effects:* Direct-non-list-initializes *extents\_* with
|
| 62 |
+
`other.extents()`.
|
| 63 |
+
|