Modern C++ for Absolute Beginners: A Friendly Introduction to the C++ Programming Language and C++11 to C++23 Standards

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

S. DmitrovićModern C++ for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-9274-7_20

20. Exercises

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

Function Definition

Write a program that defines a function of type void called printmessage(). The function outputs a "Hello World from a function." message on the standard output. Call the function from main.

#include <iostream>

void printmessage()

{

    std::cout << "Hello World from a function.";

}

int main()

{

    printmessage();

}

Output:

Hello World from a function.

Separate Declaration and Definition

Write a program that declares and defines a function of type void called printmessage(). The function outputs a "Hello ...