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C++ Functions

Return Custom Data TypesReturn Custom Data Types

In C++, 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.

cpp

main.cpp

Code Description

This C++ code demonstrates the usage of custom structures and functions to create and return instances of a custom structure named Person. Here's the breakdown of the code:

  • Person Struct:
    • - Attributes: string name and int age.
    - Description: Defines a structure named Person with attributes name to store the person's name and age to store the person's age.

  • createPerson() Function:
    • - Return Type: Person (returns a Person object).
    - Description: This function creates a new Person object, initializes its name and age attributes, and then returns the copy of the created object.

  • main() Function:
    • - Description: In the main() function, the createPerson() function is utilized to create a Person object named person1. The object is initialized with specific values and then accessed for its name and age attributes. The results are then printed to the console using cout, showcasing the content of the created custom structure.

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    course content

    Зміст курсу

    C++ Functions

    1. Introduction

    What is Function in C++?How to Create Function in C++?Simple Function CreationVariable ScopesUnderstanding Variable Scopes

    2. Function Arguments Specification

    Positional and Default ArgumentsPassing Arguments by Value/Pointer/ReferenceConstant Function ArgumentsPassing Static Array as an Argument of the FunctionPassing Dynamic Array as an Argument of the FunctionWhy Do We Need Array Size as an Argument?Passing Custom Structures as Arguments

    3. Function Return Values Specification

    Returning Values With Simple Data TypesReturning Arrays from the FunctionReturn Custom Data TypesVoid Return Type

    4. Some Advanced Topics

    Function OverloadingFunction Overloading PracticeRecursionLambda Functions

    C++ Functions

    Return Custom Data TypesReturn Custom Data Types

    In C++, 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.

    cpp

    main.cpp

    Code Description

    This C++ code demonstrates the usage of custom structures and functions to create and return instances of a custom structure named Person. Here's the breakdown of the code:

  • Person Struct:
    • - Attributes: string name and int age.
    - Description: Defines a structure named Person with attributes name to store the person's name and age to store the person's age.

  • createPerson() Function:
    • - Return Type: Person (returns a Person object).
    - Description: This function creates a new Person object, initializes its name and age attributes, and then returns the copy of the created object.

  • main() Function:
    • - Description: In the main() function, the createPerson() function is utilized to create a Person object named person1. The object is initialized with specific values and then accessed for its name and age attributes. The results are then printed to the console using cout, showcasing the content of the created custom structure.

    Все було зрозуміло?

    Секція 3. Розділ 3
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