University of Cincinnati Department of Electrical and Computer Engineering EECE180 Software Methods I

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1 University of Cincinnati Department of Electrical and Computer Engineering EECE180 Software Methods I Laboratory 1. Becoming Acquainted with the CodeBlocks IDE, Compiler, and Debugger Introduction The purpose of this laboratory is to learn how to install and use the CodeBlocks compiler and debugger by following a tutorial and guide provided by the Department of Computer and Information Science, Brooklyn College of CUNY, titled Code::Blocks Student Manual. This manual is available from called the SUNY guide in this assignment. To accomplish this lab, follow the Tasks below, in sequence, to 1) install and setup CodeBlocks on your classroom or personal computer, and 2) learn how to use CodeBlocks. Before We Start Attendance Policy: Attendance at all EECE180 laboratory sessions is mandatory. Even if you accomplished the lab before the laboratory session, you still must attend the lab for at least the first half-hour to 1) hear laboratory instruction given by the instructor or TA, 2) respond to any last-minute instructions or changes given by the instructor, and 3) be available for to interact with your classmates as needed. I advise that all or most of the laboratory exercise be accomplished during the laboratory period the encouragement and assistance provided by the instructor, TA, and other students is a significant part of the laboratory experience. Resources: For this lab, there are two text files (header.txt, buggy.cpp) that you will need to type or cut-andpaste into code files at particular points in your progress through the tutorial. These files are attached at the end of this assignment. Possible GotCha's: There may be small differences between the operation of CodeBlocks as described in the Brooklyn SUNY guide and what we are doing. Except for some installation differences, I haven't found very many, and they are small. So you can pretty much trust the SUNY guide. One notable difference is the Hello World program. Use the Hello World code that is in the main.cpp file that loads when you create a new Project, not the one that appears in the SUNY guide. They are similar and produce the same results when compiled and executed. Installation may differ from the SUNY guide primarily since the SUNY guide is now several years old. For example, the files to download differ depending on whether you have Windows XP, Vista, or Windows 7. The download and install instructions in Task 1 below provides the latest updates to the SUNY guide on where and how to install CodeBlocks. Task 1. Install CodeBlocks 1. Acquaint yourself with the SUNY guide you will be accomplishing the first 60 pages: Installing CodeBlocks (pp. 3-12), Creating your First project (pp ), and Debugging a Program (pp ). 2. Install CodeBlocks on your computer by following Installing CodeBlocks (pp of the SUNY guide). Since the guide was written, there have been several changes to how to install CodeBlocks. After downloading CodeBlocks, use the SUNY guide (pp. 3-12) to help you to install and setup CodeBlocks. a) If you have Vista or Windows 7, install MinGW g++ compiler before installing CodeBlocks. First download and execute x86-mingw32-build-1.0.sh (green button) from i. Check MinGW base tools, g++compiler, and MinGW make when the Choose Components window appears. ii. If you are installing CodeBlocks on an Engineering College computer, install MinGW in your own account on the \riverwind drive, not the local C:/ drive of your 1/5

2 local computer. Change the path/folder in the Choose Install Location window to, for example, \riverwind\...\my Documents. Then you can access your install of iii. If you are installing CodeBlocks on your own computer, use the default location for Then download and execute codeblocks-8.02-setup.exe from i. If you are installing CodeBlocks on an Engineering College computer, install it in your own account on the \riverwind drive, not the local C:/ drive of your local computer. Change the path/folder in the Choose Install Location window to, for example, \riverwind\...\my Documents. Then you can access your install of ii. If you are installing CodeBlocks on your own computer, use the default location for iii. Follow the SUNY guide for all other aspects of the install. b) If you have Windows XP, download and the install MinGW g++ compiler and CodeBlocks from a single executable. Download and execute codeblocks-8.02mingw-setup.exe from i. If you are installing CodeBlocks on an Engineering College computer, install it in your own account on the \riverwind drive, not the local C:/ drive of your local computer. Change the path/folder in the Choose Install Location window to, for example, \riverwind\...\my Documents. Then you can access your install of ii. If you are installing CodeBlocks on your own computer, use the default location for iii. Follow the SUNY guide for all other aspects of the install. Task 2. Use CodeBlocks to Create Your First Program 1. Create your first project by following First Project and Adding Files to your Project (pp ) of the SUNY guide. Do not submit any files created in this task for grading. Task 3. Use CodeBlocks to Debug a Program 1. Following Debugging a Program (pp ), find and correct errors in the code shown in the SUNY guide (also given below as file buggy.cpp ). a) Instead of using the code shown in the tutorial, use buggy.cpp below which is the same program, but with the code reorganized to better represent the coding style expected in the course. Simply cut and paste buggy.cpp into main.cpp replacing template code fragments initially provided by CodeBlocks when you create a new main cpp file. b) Although not requested by the SUNY instructions, insert comments at the beginning of main.cpp by cut-and-pasting header.txt below. Then replace the phrases between all of the '< ' and '>' phrases with lab specific information. See the example below as a guide. You will be required to include header comments in every code file developed for all labs in the course. c) Once you have accomplished the Debugging a Program tutorial and your code executes correctly, submit the results of this task in accordance with the lab/homework subission requirements for the course (typically a hardcopy of the correct buggy.cpp file, or submission of buggy.cpp file to Blackboard or other electronic archive). Submission must be done by the end of the lab session. 2/5

3 Code: header.txt This is a template header for use throughout the course. An example of a full header based on this template is shown below. The header comments shown in buggy.cpp (below) illustrates probably the simplest known application of the header. ******************************************************************** File: <file name> <prog, class, or function name> An example program to demonstrate the use of pseudo-english as a simple functional software design approach. Author: <module developer name> Created: <date originally coded> Updated: <date of change> <what was changed> <coder initials> <note: add a line every time significant code is changed> Assignment: EECE180 Lab<number> Compiler: CodeBlocks 8.02 ********************************************************************** INPUTS: <list of program inputs and short explanation of each> OUTPUTS: <list of program outputs and short explanation of each> CONSTRAINTS: <list of constraints or constraints program imposes on the input or use of the program> ********************************************************************* DESIGN <Pseudocode in outline form> ********************************************************************** Example of a completed header This example is a complete, final header based on the template header above. It is for illustration only. Although it is not directly used in this lab, it represents the form and content of headers for all C++ files and major modules you will create throughout this course. ********************************************************************* File: example.cpp example An example program to demon the use of pseudo-english as a simple functional software design approach. Author: Hal Carter Created: 20 Dec 07 Updated: 21 Dec 07 Fixed problem when input is near max int. HWC 22 Dec 07 Modified results msg to be clearer to user. HWC 08 Mar 09 Header comments modified for EECE180 HWC 20 Mar 09 Name Lab 0 changed to example HWC Assignment: example Compiler: Visual C Express 3/5

4 ********************************************************************** INPUTS: An integer input by the user. OUTPUTS: Display the sum of 11 contiguous integers starting with the integer input by the user, or, if the integer input by the user is negative, the sum the square of the eleven contiguous integers beginning with the absolute value of the integer input by the user. CONSTRAINTS: Input must be < MAXINT-10 ********************************************************************* DESIGN 1. Get an integer from the user 2. If input is not an integer: a. Display Value input by user not an integer b. Exit program 3. Calculate the sums a. If input integer is positive let result be the sum of input+i where i ranges from 0 to 10 b. If input integer is negative let result be the sum of (-input+i)*(-input+i) where i ranges from 0 to 10 ******************************************************************* Code: buggy.cpp ********************************************************************* File: buggy.cpp example Display the sum of 5 and 2 Author: SUNY Guide Created: Unknown Updated: 23 Dec 09 Added header and comments HWC Assignment: Laboratory 1, Task 3 Compiler: CodeBlocks ********************************************************************** INPUTS: None OUTPUTS: Display the sum of 5 and 2 CONSTRAINTS: None ********************************************************************* DESIGN 1. Initial two integers, x and y, to 5 and 2 respectively 2. Add x and y 3. Display the sum of x and y ******************************************************************* #include <iostream> using namespace std; const int OK = 0; int addem(int, int); 4/5

5 int main() { 1. Initial two integers, x and y, to 5 and 2 respectively int x=5, y=2, z; 2. Add x and y z=addem(x,y); 3. Display the sum of x and y cout << z << endl; } return OK; addem() int addem(int a, int b) { ******************************************** Return the sum of the two arguments. Arguments: a: First operand to be summed, input b: Second operand to be summed, input ******************************************** } int c; c=a+b; return c; 5/5