Collect all Sheep in the Zoo using dynamic cast (the recommended way)
| 27 | |
| 28 | // Collect all Sheep in the Zoo using dynamic cast (the recommended way) |
| 29 | std::vector<SheepPtr> Zoo::herd() const |
| 30 | { |
| 31 | std::vector<SheepPtr> sheep; |
| 32 | for (auto animal : m_animals) |
| 33 | { |
| 34 | auto casted{ std::dynamic_pointer_cast<Sheep>(animal) }; |
| 35 | if (casted) |
| 36 | { |
| 37 | sheep.push_back(casted); |
| 38 | } |
| 39 | } |
| 40 | return sheep; |
| 41 | } |