Tested with Doxygen 1.13.1 (cb7d0d0) using the default-generated Doxyfile (doxygen -g).
Given the following header file:
/// This is \ref A.
namespace A {
/// This is \ref A::S.
struct S {
/// This is \ref A::S::M.
struct M {
/// This is \ref A::S::M::foo().
void foo();
};
};
} // namespace A
/// This is \ref B.
namespace B {
using A::S;
} // namespace B
The Class List page is missing the brief description for the using-declared B::S::M class:

Although the class page for the using-declared B::S::M class is present, including documentation of its members, the description for the class itself is missing:

For comparison, the class page for A::S::M looks as follows:

Tested with Doxygen 1.13.1 (cb7d0d0) using the default-generated Doxyfile (
doxygen -g).Given the following header file:
The Class List page is missing the brief description for the using-declared
B::S::Mclass:Although the class page for the using-declared
B::S::Mclass is present, including documentation of its members, the description for the class itself is missing:For comparison, the class page for
A::S::Mlooks as follows: