| Issue |
134353
|
| Summary |
[clang] Missing diagnostic when initializing a member variable using uninitialized member variable
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
horenmar
|
I recently found an `-Wreorder` adjacent issue that does not get diagnosed. In the `test_t` struct below, we initialize `bar` using `foo` member variable, but because `foo` is declared after `bar`, we are reading it before initialization. (this can happen e.g. by reordering the member without noticing the dependency).
```cpp
struct test_t {
int bar{ foo + 1 };
int foo{ 3 };
};
int main() {
test_t t{};
}
```
[CE link](https://godbolt.org/z/W7zMva9x7)
Ideally this would also be caught under `-Wreorder` or by `-Wuninitialized`.
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