| Issue |
175893
|
| Summary |
[LifetimeSafety] False-negative for dangling std::optional temporary
|
| Labels |
false-negative,
clang:temporal-safety
|
| Assignees |
|
| Reporter |
usx95
|
```cpp
#include <optional>
#include <vector>
const int& VectorTemp() {
return std::vector<int>().at(0); // Error. Good.
}
const int& OptionalTemp() {
return std::optional<int>().value(); // No error. Bad.
}
const int& OptionalLocal() {
auto local = std::optional<int>();
return local.value(); // Error. Good.
}
```
https://godbolt.org/z/s18e48K1f
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