For C++, How would I call or use a function that is passed by pointer or a reference? How would I use these in this example below? I understand how passing by value works, but when it comes to passing by references and pointers, that is when I get confused. #include using namespace std; // passing by reference in this function void pass_ref(int &ref); // passing by pointer in this function void pass_ptr(int* ptr);

I'm having a very hard time creating a working code for this, can you please help? i need one working program without seperate files please

Hello, can anyone help me with this program please? I need it in C++. I already have a bit of code that was given to me but I'm not sure how to go forward with it. Please help me. Modify the vehicle management program to allow an automobile rental company to manage its fleet of automobiles. First, define a class called CityCar that contains an array of pointers to the 100 objects in the Car class. This also allows you to store pointers to objects of the derived class types PassCar and Truck. The objects themselves will be created dynamically at runtime. Define a class CityCar with an array of pointers to the Car class and an int variable for the current number of elements in the array. The constructor will set the current number of array elements to 0. The destructor must release memory allocated dynamically for the remaining objects. Make sure that you use a virtual destructor definition in the base class Car to allow correct releasing of memory for trucks and passenger vehicles....

C++ Write a void function that has two parameters: a value parameter called num that receives a floating point number from the calling function and a floating point reference parameter called result. The functions should do this calculation: 25.0 * num + 37 and store the answer in result. Do not do any read or write operations in the function.

C++

Write a C++ program with two user defined functions. The first function named "functionWithArray" takes two user input arguments of character types and return True if first argument is smaller than the second argument (alphabetically) and returns False otherwise. Write the second function named "functionWithPointers" which behaves like the first functions but uses pointers to receive the arguments. You may assume that both character arrays contain only lower-case letters, and no blanks or other non- alphabetic characters. Write a suitable Main function to test these two functions. Sample Output: Enter First String: C++Programming Enter Second String: JavaProgramming According to functionWithArrays: 'c++programming' is smaller than 'javaprogramming'. According to functionWithPointers: 'c++programming' is smaller than 'javaprogramming'.

need help in C++ Problem: You are asked to create a program for storing the catalog of movies at a DVD store using functions, files, and user-defined structures. The program should let the user read the movie through the file, add, remove, and output movies to the file. For this assignment, you must store the information about the movies in the catalog using a single vector. The vector's data type is a user-defined structure that you must define on functions.h following these rules: Identifier for the user-define structure: movie. Member variables of the structure "movie": name (string), year (int), and genre (string). Note: you must use the identifiers presented before when defining the user-defined structure. Your solution will NOT pass the unit test cases if you do not follow the instructions presented above. The main function is provided (you need to modify the code of the main function to call the user-defined functions described below). The following user-defined functions are...

c++ write a void function that has two parameters- a value parameter called num that receives a floating-point number from the calling function, and a reference parameter used to pass back the result of this formula: 25.0*num+37.0. DO NOT do any read or write operations in the function. Declare local variables as appropriate.

Choose if each of the following is true or false:Dynamically binding data to virtual functions is limited to pointers and references.

Consider the following function definition.void mystery(int* x){// function body } Inside the definition of mystery, the C++ language provides a way to distinguish if x points to a lone int value or to an int allocated as part of a larger array.A. True B. False

Consider the function definition: void GetNums(int howMany, float& alpha, float& beta) { int i; beta = 0; for (i = 0; i < howMany; i++) { beta = alpha + beta; } } Describe what happens in MEMORY when the GetNums function is called.