RBE104TC C/C++ Programming Language

Assignment 1

Contribution to the Overall Marks 30%

Issue Date

Submission Deadline 13th October 2024

Assignment Overview:

This assignment is geared towards assessing fundamental coding concepts in C/C++ and

initiating the process of code development using the software development process (SDP)

discussed in relevant lectures.

In composing the SDP report [in English], we request you to fulfil the following criteria:

 Design: Clearly explain your understanding of the given problem and specify a sequence of

steps necessary to accomplish the task (illustrated through flowcharts).

 Coding Progress: Attach 3-5 screenshots that show the code and running results as evidence,

particularly highlighting any errors or situations you believe are valuable to document. The

corresponding 3-5 versions of the C code should also be saved. All files must clearly

demonstrate the progression of your programming task from the initial stage to the final version.

 Analysis: Describe the files submitted in the Coding Progress section. Discuss the expected

results, any encountered or unexpected errors, and your solutions to those issues.

 Implementation: The C code must be submitted in a separate file. Please specify the file

name and provide instructions for user operation.

 Testing: Describe how you tested and validated your code for required functionalities, as

well as its robustness.

Exercise 1 (50%):

Write ONE C Program to accomplish the following task: Convert a double number to its

hexadecimal form.

Constraints:

1). The double number x is located between 0 and 1000 (0 <= x < =1000), e.g. 678.345;

2). The double number with the hexadecimal form contains 6 significant digits. e.g. The

hexadecimal form of “678.345” is “2A6.5851EB”;

3). The double number with the hexadecimal form is represented by a string (or a character

array), e.g. “2A6.5851EB”.

4). If illegal user input is detected, the software should be capable of informing the user and

enabling re-input to meet the software robustness requirement;

Advice:

It is strongly suggested that you should read the relevant lecture notes on the Learning Mall

before you write down your own codes. The note will help you design a correct program,

especially the design of loop structures and the usage of the arrays.

The possible steps are as follows:

1). Split a double number into the integer part and the fractional part;

2). Convert the integer part into its hexadecimal form;

3). Convert the fractional part into its hexadecimal form;

4). Combine both parts into a string;