https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119726
Bug ID: 119726
Summary: Template Specialization of Inner class from Inherited
template class fails with: " too few
template-parameter-lists"
Product: gcc
Version: 14.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: awia00 at gmail dot com
Target Milestone: ---
https://godbolt.org/z/h3frfdqTf
The following code fails to commpile on GCC-14, but compiles with
clang-18/clang-19.
```
template<typename U>
struct A {
template<typename T>
struct AA {
};
};
struct B : A<B>
{
};
template<>
struct B::AA<int> {
};
int main() {
}
```
GCC produces
```
<source>:14:11: error: too few template-parameter-lists
14 | struct B::AA<int> {
| ^~~~~~~
Compiler returned: 1
```
Motivation: This is a use case for our strong typing library, where a base
class provides an inner class - but the inner class has to be specialized in
order to add custom constructors.
