| Issue |
99894
|
| Summary |
[clang] Error (with diagnostic) on valid after #90574
|
| Labels |
clang
|
| Assignees |
yronglin
|
| Reporter |
dcci
|
```
namespace {
typedef char a;
template <typename b> struct ai {
typedef b aj;
typedef ai ak;
aj operator*();
ak operator++();
friend bool operator==(ak, ak);
};
template <typename, typename, typename, typename> class am {
typedef a an;
public:
typedef ai<an> ao;
};
template <typename ap, typename c = ap> class aq {
typedef ap ar;
typedef ap an;
typedef c as;
typedef am<ar, an, an, as> at;
public:
typedef at::ao av;
av begin();
av end();
};
namespace {
namespace {
a aw() {
aq<a> ax;
for (auto module : ax)
;
}
} // namespace
} // namespace
} // namespace
```
`clang patatino.cpp -std=c++20 -c`
The patch got reverted, but this is the testcase.
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