tmp/tmpgk73g0bp/{from.md → to.md}
RENAMED
|
@@ -8,25 +8,20 @@ iterates the same elements in reverse order.
|
|
| 8 |
The name `views::reverse` denotes a range adaptor object
|
| 9 |
[[range.adaptor.object]]. Given a subexpression `E`, the expression
|
| 10 |
`views::reverse(E)` is expression-equivalent to:
|
| 11 |
|
| 12 |
- If the type of `E` is a (possibly cv-qualified) specialization of
|
| 13 |
-
`reverse_view`,
|
| 14 |
- Otherwise, if the type of `E` is cv
|
| 15 |
`subrange<reverse_iterator<I>, reverse_iterator<I>, K>` for some
|
| 16 |
iterator type `I` and value `K` of type `subrange_kind`,
|
| 17 |
-
- if `K` is `subrange_kind::sized`,
|
| 18 |
-
`
|
| 19 |
-
|
| 20 |
-
```
|
| 21 |
-
- otherwise, equivalent to:
|
| 22 |
-
``` cpp
|
| 23 |
-
subrange<I, I, K>(E.end().base(), E.begin().base())
|
| 24 |
-
```
|
| 25 |
|
| 26 |
However, in either case `E` is evaluated only once.
|
| 27 |
-
- Otherwise,
|
| 28 |
|
| 29 |
[*Example 1*:
|
| 30 |
|
| 31 |
``` cpp
|
| 32 |
vector<int> is {0,1,2,3,4};
|
|
@@ -66,10 +61,17 @@ namespace std::ranges {
|
|
| 66 |
}
|
| 67 |
|
| 68 |
constexpr auto size() const requires sized_range<const V> {
|
| 69 |
return ranges::size(base_);
|
| 70 |
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 71 |
};
|
| 72 |
|
| 73 |
template<class R>
|
| 74 |
reverse_view(R&&) -> reverse_view<views::all_t<R>>;
|
| 75 |
}
|
|
|
|
| 8 |
The name `views::reverse` denotes a range adaptor object
|
| 9 |
[[range.adaptor.object]]. Given a subexpression `E`, the expression
|
| 10 |
`views::reverse(E)` is expression-equivalent to:
|
| 11 |
|
| 12 |
- If the type of `E` is a (possibly cv-qualified) specialization of
|
| 13 |
+
`reverse_view`, then `E.base()`.
|
| 14 |
- Otherwise, if the type of `E` is cv
|
| 15 |
`subrange<reverse_iterator<I>, reverse_iterator<I>, K>` for some
|
| 16 |
iterator type `I` and value `K` of type `subrange_kind`,
|
| 17 |
+
- if `K` is `subrange_kind::sized`, then
|
| 18 |
+
`subrange<I, I, K>(E.end().base(), E.begin().base(), E.size())`;
|
| 19 |
+
- otherwise, `subrange<I, I, K>(E.end().base(), E.begin().base())`.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 20 |
|
| 21 |
However, in either case `E` is evaluated only once.
|
| 22 |
+
- Otherwise, `reverse_view{E}`.
|
| 23 |
|
| 24 |
[*Example 1*:
|
| 25 |
|
| 26 |
``` cpp
|
| 27 |
vector<int> is {0,1,2,3,4};
|
|
|
|
| 61 |
}
|
| 62 |
|
| 63 |
constexpr auto size() const requires sized_range<const V> {
|
| 64 |
return ranges::size(base_);
|
| 65 |
}
|
| 66 |
+
|
| 67 |
+
constexpr auto reserve_hint() requires approximately_sized_range<V> {
|
| 68 |
+
return ranges::reserve_hint(base_);
|
| 69 |
+
}
|
| 70 |
+
constexpr auto reserve_hint() const requires approximately_sized_range<const V> {
|
| 71 |
+
return ranges::reserve_hint(base_);
|
| 72 |
+
}
|
| 73 |
};
|
| 74 |
|
| 75 |
template<class R>
|
| 76 |
reverse_view(R&&) -> reverse_view<views::all_t<R>>;
|
| 77 |
}
|