Computer Science: A Structured Programming Approach Using C, Third Edition
3rd Edition
ISBN: 9780534491321
Author: Behrouz A. Forouzan, Richard F. Gilberg
Publisher: Course Technology, Inc.
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Chapter 4, Problem 31PS
Explanation of Solution
Given: The statement, “a function should do only one thing�.
To find: The meaning of the statement, “a function should do only one thing�.
Solution:
In the concept of functional cohesion, there are mainly three reasons, which are correctness, maintainability, and reusability. These three reasons make it easy to reuse, debug, or to correct the code whenever it is required...
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State the following is true or false. If false, explain why."Empty parentheses following a function name in a function definition indicate that the function does not require any parameters to perform its task."
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Explain why it's okay for a function to have side effects on occasion.
Chapter 4 Solutions
Computer Science: A Structured Programming Approach Using C, Third Edition
Ch. 4 - Prob. 1PSCh. 4 - The function definition contains the code for a...Ch. 4 - Function calls that return void may not be used as...Ch. 4 - The address operator (&) is used to tell the...Ch. 4 - Variables defined within a block have global...Ch. 4 - Prob. 6PSCh. 4 - Which of the following statements about function...Ch. 4 - Which of the following is not a part of a function...Ch. 4 - Which of the following statements about function...Ch. 4 - Which of the following statements about local...
Ch. 4 - Prob. 11PSCh. 4 - Prob. 12PSCh. 4 - Which of the following statements will generate a...Ch. 4 - Which of the following statements about structure...Ch. 4 - Find any errors in the following function...Ch. 4 - Find any errors in the following function...Ch. 4 - Find any errors in the following function...Ch. 4 - Find any errors in the following function...Ch. 4 - Find any errors in the following function...Ch. 4 - Find any errors in the following function calls:...Ch. 4 - Evaluate the value of the following expressions:...Ch. 4 - Evaluate the value of the following...Ch. 4 - Prob. 23PSCh. 4 - Define the range of the random numbers generated...Ch. 4 - What would be printed from Program 4-17 when run...Ch. 4 - Prob. 26PSCh. 4 - Prob. 27PSCh. 4 - Prob. 28PSCh. 4 - Prob. 29PSCh. 4 - Write a program that generates a random number...Ch. 4 - Prob. 31PSCh. 4 - Code and run Program 4-16, "Top—down Development...Ch. 4 - Prob. 33PSCh. 4 - Prob. 34PSCh. 4 - Expand the calculator program, Program 4-15, to...Ch. 4 - Prob. 36PSCh. 4 - Write a function that receives a positive...Ch. 4 - Prob. 38PSCh. 4 - Prob. 39PSCh. 4 - Prepare a payroll earnings statement for the sales...Ch. 4 - Write a program that, given a beginning balance in...Ch. 4 - The formula for converting centigrade temperatures...Ch. 4 - Write a program that uses standard functions. The...Ch. 4 - Write a C program that creates customers' bills...
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- Mark the following statements as true or false: a. To use a predefined function in a program, you need to know only the name of the function and how to use it. (1) b. A value-returning function returns only one value. (2, 3) c. Parameters allow you to use different values each time the function is called. (2, 7, 9) d. When a return statement executes in a user-defined function, the function immediately exits. (3, 4) e. A value-returning function returns only integer values. (4) f. A variable name cannot be passed to a value parameter. (3, 6) g. If a C++ function does not use parameters, parentheses around the empty parameter list are still required. (2, 3, 6) h. In C + + , the names of the corresponding formal and actual parameters must be the same. (3, 4, 6) i. A function that changes the value of a reference parameter also changes the value of the actual parameter. (7) j. Whenever the value of a reference parameter changes, the value of the actual parameter changes. (7) k. In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function. (9) l. Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided. (10) m. In a program, global constants are as dangerous as global variables. (10) n. The memory for a static variable remains allocated between function calls. (11)arrow_forward(Numerical) Heron’s formula for the area, A, of a triangle with sides of length a, b, and c is A=s(sa)(sb)(sc) where s=(a+b+c)2 Write, test, and execute a function that accepts the values of a, b, and c as parameters from a calling function, and then calculates the values of sand[s(sa)(sb)(sc)]. If this quantity is positive, the function calculates A. If the quantity is negative, a, b, and c do not form a triangle, and the function should set A=1. The value of A should be returned by the function.arrow_forwardWhy do you need to include function prototypes in a program that contains user-defined functions? (5)arrow_forward
- Please help me with my homework, in computer programming as follows: A number, a is a power of b if it is divisible by b and a/b is a power of b. Write a function called is_power that takes parameters a and b and returns True if a is a power of b. Note: you will have to think of the base case.arrow_forwardDescribe the statements of the function main.arrow_forwardHow can we pass argument to a function by reference instead of pass by value?arrow_forward
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