| Issue |
125810
|
| Summary |
[Clang] `-Wunused-variable` false negative when not all structured bindings are marked `maybe_unused`
|
| Labels |
|
| Assignees |
|
| Reporter |
zwuis
|
Clang doesn't emit warning when all structured bindings are unused but not all structured bindings are marked `maybe_unused`.
```cpp
struct S {
int a, b;
};
void test(S s) {
auto &[a1, _] = s; // "unused variable" warning emitted expectedly
auto &[a2, b2 [[maybe_unused]]] = s; // no warning emitted unexpectedly
auto &[_, b3 [[maybe_unused]]] = s; // no warning emitted expectedly
}
```
Compiler Explorer: <https://godbolt.org/z/vnf9Ma3nb>
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