tmp/tmp5n8vallv/{from.md → to.md}
RENAMED
|
@@ -0,0 +1,26 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
#### Overview <a id="range.concat.overview">[[range.concat.overview]]</a>
|
| 2 |
+
|
| 3 |
+
`concat_view` presents a view that concatenates all the underlying
|
| 4 |
+
ranges.
|
| 5 |
+
|
| 6 |
+
The name `views::concat` denotes a customization point object
|
| 7 |
+
[[customization.point.object]]. Given a pack of subexpressions `Es...`,
|
| 8 |
+
the expression `views::concat(Es...)` is expression-equivalent to
|
| 9 |
+
|
| 10 |
+
- `views::all(Es...)` if `Es` is a pack with only one element whose type
|
| 11 |
+
models `input_range`,
|
| 12 |
+
- otherwise, `concat_view(Es...)`.
|
| 13 |
+
|
| 14 |
+
[*Example 1*:
|
| 15 |
+
|
| 16 |
+
``` cpp
|
| 17 |
+
vector<int> v1{1, 2, 3}, v2{4, 5}, v3{};
|
| 18 |
+
array a{6, 7, 8};
|
| 19 |
+
auto s = views::single(9);
|
| 20 |
+
for (auto&& i : views::concat(v1, v2, v3, a, s)) {
|
| 21 |
+
print("{} ", i); // prints 1 2 3 4 5 6 7 8 9
|
| 22 |
+
}
|
| 23 |
+
```
|
| 24 |
+
|
| 25 |
+
— *end example*]
|
| 26 |
+
|