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clang-uml/docs/test_cases/t20045.md
Bartek Kryza 632e170ab4 Updated test cases documentation
2024-06-17 22:02:29 +02:00

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# t20045 - Test case for template function call expressions with callables
## Config
```yaml
add_compile_flags:
- -fparse-all-comments
diagrams:
t20045_sequence:
type: sequence
glob:
- t20045.cc
include:
namespaces:
- clanguml::t20045
using_namespace: clanguml::t20045
from:
- function: "clanguml::t20045::tmain()"
```
## Source code
File `tests/t20045/t20045.cc`
```cpp
namespace clanguml {
namespace t20045 {
template <typename F> int a1(F &&f) { return f(42); }
int a2(int x) { return 2; }
int a3(int x) { return 3; }
struct B {
int b1(int x) { return x + 1; }
int b2(int x) { return x + 2; }
};
class C {
public:
explicit C(int x)
: x_{x}
{
}
int get_x() const { return x_; }
private:
int x_;
};
int tmain()
{
B b;
// \uml{call clanguml::t20045::a2(int)}
auto v1 = a1(a2);
auto v2 = a1([](auto &&arg) { return a3(arg); });
auto v3 = a1([&](auto &&arg) { return b.b1(arg); });
auto v4 = a1([](auto &&arg) {
C c(arg);
return c.get_x();
});
return 0;
}
}
}
```
## Generated PlantUML diagrams
![t20045_sequence](./t20045_sequence.svg "Test case for template function call expressions with callables")
## Generated Mermaid diagrams
![t20045_sequence](./t20045_sequence_mermaid.svg "Test case for template function call expressions with callables")
## Generated JSON models
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```
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