# t20023 - Try/catch statement sequence diagram test case
## Config
```yaml
compilation_database_dir: ..
output_directory: puml
diagrams:
  t20023_sequence:
    type: sequence
    glob:
      - ../../tests/t20023/t20023.cc
    include:
      namespaces:
        - clanguml::t20023
    using_namespace:
      - clanguml::t20023
    start_from:
      - function: "clanguml::t20023::tmain()"
```
## Source code
File t20023.cc
```cpp
#include <stdexcept>

namespace clanguml {
namespace t20023 {

struct A {
    int a1() { return 1; }
    int a2() { return 2; }
    int a3() { return 3; }
    int a4() { return 3; }

    int a()
    {
        try {
            return a1();
        }
        catch (std::runtime_error &) {
            return a2();
        }
        catch (std::logic_error &) {
            return a3();
        }
        catch (...) {
            return a4();
        }
    }
};

int tmain()
{
    A a;

    int result{};

    result = a.a();

    return result;
}
}
}
```
## Generated UML diagrams
![t20023_sequence](./t20023_sequence.svg "Try/catch statement sequence diagram test case")