tmp/tmpesz4wmxp/{from.md → to.md}
RENAMED
|
@@ -0,0 +1,14 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
### exchange <a id="utility.exchange">[[utility.exchange]]</a>
|
| 2 |
+
|
| 3 |
+
``` cpp
|
| 4 |
+
template <class T, class U=T> T exchange(T& obj, U&& new_val);
|
| 5 |
+
```
|
| 6 |
+
|
| 7 |
+
*Effects:* Equivalent to:
|
| 8 |
+
|
| 9 |
+
``` cpp
|
| 10 |
+
T old_val = std::move(obj);
|
| 11 |
+
obj = std::forward<U>(new_val);
|
| 12 |
+
return old_val;
|
| 13 |
+
```
|
| 14 |
+
|