C++ How to Program (10th Edition)
C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 6, Problem 6.49E

(pass-by-Value vs. Pass-by-Reference) Write a complete C++ program with the two alternate functions specified below, each of which simply triples the variable count defined in main. Then compare and contrast the two approaches. These two functions are
  a) function tripleByValue that passes a copy of count by value, triples the copy and returns the new value and
  b) function tripleByReference that passes count by reference via a reference parameter and triples the original value of count through its alias (i.e. the reference parameter).

Blurred answer
Students have asked these similar questions
Consider the following database for some store: Customers (cid, cname, city, discount)Agents (aid, aname, city, percent)Products (pid, pname, city, quantity, price)Orders (ordno, mon, cid, aid, pid, qty, dollars) The relation Customers records the ID (cid), name (cname), location (city) of each customer and a discount percentage (discount) for this customer. The relation Agents records the ID (aid), name (aname), location (city) of each agent and a transaction fee (percent) charged by this agent. The relation Products lists the ID (pid), name (pname), location (city), quantity and price of available products. And finally, the relation Orders contains a unique order number (ordno), the month (mon), customer (cid), agent (aid), product (pid), quantity (qty) of each order as well as the total value (dollars) of the transaction.   1. Express the following query in SQL (a) List customers (names) who do not have discounts but purchased at least one product of price greater than $50. (b) Find…
Consider the following relational schema and briefly answer the questions that follow:   Emp(eid: integer, ename: string, age: integer, salary: real)  Works(eid: integer, did: integer, pct_time: integer)  Dept(did: integer, budget: real, managerid: integer)      a. Define a table constraint on Dept that will ensure that all managers have age > 30. b. Write SQL statements to delete all information about employees whose salaries exceed that of the manager of one or more departments that they work in. Be sure to ensure that all the relevant integrity constraints are satisfied after your updates.
Consider the following relations:     Student(snum: integer, sname: string, rmajor: string,          level: string, age: integer)   Class(cname: string, meets_at: time, room: string, fid: integer)   Enrolled(snum: integer, cname: string)   Faculty(fid: integer, fname: string, deptid: integer)     The meaning of these relations is straightforward; for example, Enrolled has one record per student-class pair such that the student is enrolled in the class.     2. Express each of the following integrity constraints in SQL unless it is implied by the primary and foreign key constraint; if so, explain how it is implied. If the constraint cannot be expressed in SQL, say so. For each constraint, state what operations (inserts, deletes, and updates on specific relations) must be monitored to enforce the constraint.   (a) Every faculty member must teach at least two courses. (b) Every student must be enrolled in the course called 'Math101'. (c) A student cannot add more than two courses at a time…

Chapter 6 Solutions

C++ How to Program (10th Edition)

Ch. 6 - Prob. 6.21ECh. 6 - Prob. 6.22ECh. 6 - Prob. 6.23ECh. 6 - (Separating Digits) Write program segments that...Ch. 6 - (Calculating Number of Seconds) Write a function...Ch. 6 - (Celsius and Fahrenheit Temperature) Implement the...Ch. 6 - (Find the Minimum) Write a program that inputs...Ch. 6 - Prob. 6.28ECh. 6 - (Prime Numbers) An integer is said to be prime if...Ch. 6 - Prob. 6.30ECh. 6 - Prob. 6.31ECh. 6 - (Quality Points for Numeric Grades) Write a...Ch. 6 - Prob. 6.33ECh. 6 - (Guess-the-Number Game) Write a program that plays...Ch. 6 - (Guess-the-Number Game Modification) Modify the...Ch. 6 - Prob. 6.36ECh. 6 - Prob. 6.37ECh. 6 - Prob. 6.38ECh. 6 - Prob. 6.39ECh. 6 - Prob. 6.40ECh. 6 - Prob. 6.41ECh. 6 - Prob. 6.42ECh. 6 - Prob. 6.43ECh. 6 - Prob. 6.44ECh. 6 - (Math Library Functions) Write a program that...Ch. 6 - (Find the Error) Find the error in each of the...Ch. 6 - (Craps Game Modification) Modify the craps program...Ch. 6 - (Circle Area) Write a C++ program that prompts the...Ch. 6 - (pass-by-Value vs. Pass-by-Reference) Write a...Ch. 6 - (Unary Scope Resolution Operator) What’s the...Ch. 6 - (Function Templateminimum) Write a program that...Ch. 6 - Prob. 6.52ECh. 6 - (Find the Error) Determine whether the following...Ch. 6 - (C++ Random Numbers: Modified Craps Game) Modify...Ch. 6 - (C++ Scoped enum) Create a scoped enum named...Ch. 6 - (Function Prototype and Definitions) Explain the...Ch. 6 - Prob. 6.57MADCh. 6 - Prob. 6.58MADCh. 6 - (Computer-Assisted Instruction: Monitoring Student...Ch. 6 - (Computer-Assisted Instruction: Difficulty Levels)...Ch. 6 - (Computer-Assisted Instruction: Varying the Types...
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
Text book image
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
What is Abstract Data Types(ADT) in Data Structures ? | with Example; Author: Simple Snippets;https://www.youtube.com/watch?v=n0e27Cpc88E;License: Standard YouTube License, CC-BY