What are the problems (if any) with the following functions? Fix them and find appropriate pre- and postconditions. 1. function is even: bool is_even(unsigned int 1) { if (1 % 2 == 0) return true; 2. function invert: Floating Point Calculations & Basic. https://expert.ethz.ch/print/ifme: double invert(double x) { double result; if (x !- 0) { result -1/ x; return result;
What are the problems (if any) with the following functions? Fix them and find appropriate pre- and postconditions. 1. function is even: bool is_even(unsigned int 1) { if (1 % 2 == 0) return true; 2. function invert: Floating Point Calculations & Basic. https://expert.ethz.ch/print/ifme: double invert(double x) { double result; if (x !- 0) { result -1/ x; return result;
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
5.
![19:27
O N{ ll 62%
exercises05.pdf
Task 5: Fixing Functions
Open Task
This tosk is a text based task. You do not need to write any program/C++ file: the onswer
should be written in main.md (and might include code fragments if questions ask for
them).
Task:
What are the problems (if any) with the following functions? Fix them and find
appropriate pre- and postconditions.
1. function is_even:
bool is_even (unsigned int i) {
if (1 % 2 == 0) return true;
2. function invert:
3 of 4.
2019-10-15 10:45
Exercise 5: Floating Point Calculations & Basic..
https://expert.ethz.ch/print/ifme1/AS19/XGRNV..
double invert(double x) {
double result;
if (x != 0) {
result = 1 / x;
return result;
Hint: The C++ compiler does not protect you from certain types of errors.
Therefore, even if you run a program in Code Expert, it is not guaranteed that the
behaviour you observe is the "real" one. We have prepared a program tracing
handout that shows how to execute a program with a pen and paper and which
conditions indicate bugs in the executed program not caught by the C++ compiler.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F18a549b9-9705-4857-a3a6-98794f50e70f%2F86b5cc30-2669-4470-8029-a825da1175c2%2Ffh6mpyh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:19:27
O N{ ll 62%
exercises05.pdf
Task 5: Fixing Functions
Open Task
This tosk is a text based task. You do not need to write any program/C++ file: the onswer
should be written in main.md (and might include code fragments if questions ask for
them).
Task:
What are the problems (if any) with the following functions? Fix them and find
appropriate pre- and postconditions.
1. function is_even:
bool is_even (unsigned int i) {
if (1 % 2 == 0) return true;
2. function invert:
3 of 4.
2019-10-15 10:45
Exercise 5: Floating Point Calculations & Basic..
https://expert.ethz.ch/print/ifme1/AS19/XGRNV..
double invert(double x) {
double result;
if (x != 0) {
result = 1 / x;
return result;
Hint: The C++ compiler does not protect you from certain types of errors.
Therefore, even if you run a program in Code Expert, it is not guaranteed that the
behaviour you observe is the "real" one. We have prepared a program tracing
handout that shows how to execute a program with a pen and paper and which
conditions indicate bugs in the executed program not caught by the C++ compiler.
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