Can you call a constructor from another constructor in C++? (Constructor chaining)

Hello, colleagues! I'm a beginner C++ developer and I've encountered a problem that seems very strange to me. I have a class with several constructors. They all do the same thing: initialize fields, allocate memory, but with different parameters. For example, one constructor takes a name and age, another takes only a name (age defaults to 0), and a third takes nothing (all defaults).

Here's a simplified code of what I'm trying to do:

class Person {\npublic:\n    std::string name;\n    int age;\n\n    // Constructor with two parameters\n    Person(const std::string& n, int a) : name(n), age(a) {\n        // some complex initialization, e.g., age validation\n        if (age < 0) age = 0;\n        std::cout << "Person created: " <<