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Obsidian-Main/02. PARA/03. Resources(資源)/C++17/rvalue.md
Awin Huang 58178415c4 vault backup: 2022-06-08 13:52:41
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02. PARA/03. Resources(資源)/C++17/rvalue.md
2022-06-08 13:52:41 +08:00

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- 等號右邊的值
- 臨時的值,例如運算的結果
- 無法被取址address-of的物件
# rvalue參考
可以用`&&`來參考rvalue。例如
```
int c{5};
int&& rtepm {c + 3};
```
## 參考
- [Value categories - cppreference.com](https://en.cppreference.com/w/cpp/language/value_category)
- [rvalue 參考](https://openhome.cc/Gossip/CppGossip/RvalueReference.html)