Why is it important to test for invalid input for the initial sentinel value when using while loops?

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter5: Repetition Statements
Section5.1: Basic Loop Structures
Problem 4E
icon
Related questions
Question

Why is it important to test for invalid input for the initial sentinel value when using while loops?

Expert Solution
Step 1

Sentinel value is an uncommon worth used to end a sentinel-controlled circle. In a sentinel-controlled circle, it is obscure how frequently the circle will repeat through the circle body. A sentinel esteem is picked chiefly from ill-conceived information and it guarantees that the circle will end in the event that it is given as info. An illustration of sentinel worth would be "- 1" for testing non-negative numbers.

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Types of Loop
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.
Recommended textbooks for you
C++ for Engineers and Scientists
C++ for Engineers and Scientists
Computer Science
ISBN:
9781133187844
Author:
Bronson, Gary J.
Publisher:
Course Technology Ptr
C++ Programming: From Problem Analysis to Program…
C++ Programming: From Problem Analysis to Program…
Computer Science
ISBN:
9781337102087
Author:
D. S. Malik
Publisher:
Cengage Learning
Programming Logic & Design Comprehensive
Programming Logic & Design Comprehensive
Computer Science
ISBN:
9781337669405
Author:
FARRELL
Publisher:
Cengage
Microsoft Visual C#
Microsoft Visual C#
Computer Science
ISBN:
9781337102100
Author:
Joyce, Farrell.
Publisher:
Cengage Learning,