Hi, the follwing code is return by value but I want to make it return by reference ... please help #include<iostream> using namespace std; double cubeValue (double n) {//function which takes parameter and cubes it double c = n * n * n; return c;//return by value } int main () {//main function double number; cout << "Enter the number you wish to cube: "; cin >> number; double n = cubeValue (number);//calling function and storing return by value in n cout << "The number after cubing is: " << n << endl; }

Hi, the follwing code is return by value but I want to make it return by reference ... please help #include<iostream> using namespace std; double cubeValue (double n) {//function which takes parameter and cubes it double c = n * n * n; return c;//return by value } int main () {//main function double number; cout << "Enter the number you wish to cube: "; cin >> number; double n = cubeValue (number);//calling function and storing return by value in n cout << "The number after cubing is: " << n << endl; }

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter7: User-defined Simple Data Types, Namespaces, And The String Type

Section: Chapter Questions

Problem 1TF

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C code blocks Write the complete function that receives a pointer to a single floating point number as an argument and returns that number after subtracting 100 from it. Define your function in the same way as the given function prototype. Take a look at the "For example" below to see how the function is used in the main function and the expected result. (For interest sake, note that this is a pass-by-reference function call.) #include <stdio.h>#include <stdlib.h>void subtractFunc(float *a);int main(){ float num = 357.900; subtractFunc(&num); printf("%.3f", num); return 0;} //Your answer starts here For example: Test Result float num = 357.900; subtractFunc(&num); printf("%.3f", num); 257.900
Question 2: multiply Problem statement In this question first we will practice function overloading and then function templates. Please follow below instructions. We can extend multiplication easily for string types if we interpret the operation as repetition. For example "code" * 3 may be interpreted as "codecodecode". In fact, languages like Python already support this operation. Write a C++ function named multiply that can multiply(repeat) an std::string by a given integer number and return the repeated string. Write another C++ function named multiply that can multiply two given integer (int type) numbers and return the product as an integer. Write another C++ function with the same name that can multiply a floating point number (double type) by a given integer number and return the product as a floating point number. We defined three functions with the same name without a problem. It is either because they have a different number of parameters, or because any of their…
The Problem: Lots of functions return a pointer when returning a goodvalue and NULL on error. We a quick way of testing for NULL.
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Question 2: multiply Problem statement In this question first we will practice function overloading and then function templates. Please follow below instructions. We can extend multiplication easily for string types if we interpret the operation as repetition. For example "code" * 3 may be interpreted as "codecodecode". In fact, languages like PythonLinks to an external site. already support this operation. Write a C++ function named multiply that can multiply(repeat) an std::string by a given integer number and return the repeated string. Write another C++ function named multiply that can multiply two given integer (int type) numbers and return the product as an integer. Write another C++ function with the same name that can multiply a floating point number (double type) by a given integer number and return the product as a floating point number. We defined three functions with the same name without a problem. It is either because they have a different number of parameters, or…
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I need a memory diagram of this C++ function: ***CODE*** #include using namespace std; int f2(int r, int& s) { r /= 2; s *= 3; int temp = r + s + 20; return temp; } int f1(int& p) { int q = 5; p = 95; int temp = f2(p, q); return temp; } struct s1 { string fname; int grade; s1() : fname(""), grade(0) {} }; int main() { int a = 7; int b = f1(a); s1* summa_cum_laude = new s1(); s1* magna_cum_laude = new s1(); summa_cum_laude->fname = "Roxanne"; summa_cum_laude->grade = a; magna_cum_laude->fname = "Rock"; magna_cum_laude->grade = b; cout << (*summa_cum_laude).fname << "'s grade: " << (*summa_cum_laude).grade << endl; cout << (*magna_cum_laude).fname << "'s grade: " << (*magna_cum_laude).grade << endl; delete summa_cum_laude; magna_cum_laude = nullptr; }