Chapter 3.1.1: Function Invocations

Adapted from: “Object-Oriented Programming Using C++” by Ira Pohl (Addison- Wesley)

Program that demonstrates function invocations in C++¶

// Ring the bell using '\a' literal for the alarm.

#include <iostream>

const char BELL = '\a';

void ring()
{
    std::cout << BELL;
    std::cout << "Hello from function ring!" << std::endl;
}

int main()
{
    ring();
}

Compile and Exectute the Program¶

The above program is compiled and run using Gnu Compiler Collection (g++):

import os
root_dir = os.getcwd()

code_dir = root_dir + "/" + "Cpp_Code/Chapter_3_1_1_Function_Invocation"

ch_dir_stat = os.chdir(code_dir)

build_command = os.system("g++ bell.cpp -w -o in_the_bell")

exec_status = os.system("./in_the_bell")

Hello from function ring!