Learn Return Custom Data Types | Function Return Values Specification

You can return custom structures and classes from functions. When you return an instance of a struct or class from a function, you essentially return a copy of the object ( the same as returning simple data types).

This allows you to encapsulate related data and behavior within a single structure or class instance, pass it around between functions, or use it in different parts of your program.

To return a structure/class, you must use the structure/class name as a type specifier in the function signature.

main.cpp


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#include <iostream>

// Define a custom structure called Person
struct Person {
    std::string name;
    int age;
};

// Function that returns a Person object
Person create_person(const std::string name, const int age)
{
    return Person { name, age };
}

int main()
{
    // Call the function to create a Person object
    Person person = create_person("Alice", 30);

    // Access and print the attributes of the returned Person object
    std::cout << "Name: " << person.name << std::endl;
    std::cout << "Age: " << person.age << std::endl;
}

This code defines a custom structure Person with two fields: name and age. The create_person() function creates and returns a Person object initialized with the given values. In main(), the function is called to create a Person instance, and the object’s details are printed to the console.

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Section 3. Chapter 3

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