| Issue | 133132 |
|---|---|
| Summary | [Clang] CTAD for alias template failed as a default type argument is not used for deduction |
| Labels | clang |
| Assignees | |
| Reporter | MagentaTreehouse |
```c++
template <class T>
struct A {};
template <class T>
using Foo = A<A<T>>;
template <class T = int>
using Bar = Foo<T>;
Bar a{};
```
Output:
```console
```
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