# t00045 - Test case for root namespace handling
## Config
```yaml
compilation_database_dir: ..
output_directory: puml
diagrams:
  t00045_class:
    type: class
    glob:
      - ../../tests/t00045/t00045.cc
    exclude:
      namespaces:
        - std
```
## Source code
File t00045.cc
```cpp
class A {
};

class AA {
};

class AAA {
};

template <typename T> class AAAA {
    T t;
};

namespace ns1 {

class A {
};

namespace ns2 {

class A {
};

class B : public A {
};

class C : public ns1::A {
};

class D : public ns1::ns2::A {
};

class E : public ::A {
};

class AAA {
};

class R {
public:
    A *a;
    ns1::A *ns1_a;
    ns1::ns2::A *ns1_ns2_a;
    ::A *root_a;

    friend ::AAA;
    // TODO:
    // template<typename T> friend class ::AAAA;

    void foo(::AA &aa) { (void)aa; }
};
} // namespace ns2
} // namespace ns1

```
## Generated UML diagrams
![t00045_class](./t00045_class.svg "Test case for root namespace handling")