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haas:fall2024:c4eng:projects:dtr0

Corning Community College

ENGR1050 C for Engineers

PROJECT: Data Type Resources (DTR0)

OBJECTIVE

To begin our exploration of programming, starting with an investigation into the various data types available in C, along with their properties, and collaboratively authoring and documenting the project and its specifications.

PROCESS

Do note, the productive way to go about this project involves taking the following steps:

  • starting early
  • reading the project page
  • asking questions regarding things you do not know, are not clear on, or are confused about
  • as information, concepts, processes become clear, that is something you can contribute to the project documentation (so you can better remember)

If you start too late, and do not ask questions, and do not have enough time and don't know what is going on, you are not doing the project correctly.

GRABIT

To assist with consistency across all implementations, data files for use with this project are available on lab46 via the grabit tool. Be sure to obtain it and ensure your implementation properly works with the provided data.

lab46:~/src/SEMESTER/DESIG$ grabit DESIG PROJECT

EDIT

You will want to go here to edit and fill in the various sections of the document:

BACKGROUND

BINARY NUMBERS

Binary is a coding system that uses a combination of 0s and 1s in order to both simulate and create mathematical algorithms. The system uses 4 bits of any combination of 0 and 1 to simulate one of 256 values, ranging from 0 to 255. Each 0 correlates to a lack of value, while each one correlates to unit holding a value of a power of 2. For example, a 1 in the unit's place (i.e. 0001) is equal to a value of 2 to the power of, meaning 1. A 1 in the ten's place (i.e. 0010) is equal to 2 to the power of 1, meaning 2. A 1 in the hundred's place (i.e. 0100) equals 2 to the power of 2, meaning 4. A 1 in the thousand's place (i.e. 1000) is equal to 2 to the power of 3, meaning 8. Higher numbers are made by combining ones and zeroes in a way that the different values are added up to create a number between 0 and 255. For example, 1011 can be interpreted as 2^3 + 0 + 2^1 + 2^0, or 8 + 0 + 2 + 1, which means 1011 is the same as eleven.

HEXADECIMAL NUMBERS

Hexadecimal, aka base 16, is a way to represent numbers as a combination of 16 numbers and symbols. This allows us to describe numbers with many digits in a more concise and convenient way than base 2. In hexadecimal 1=1, 2=2, 3=3, 4=4, 5=5, 6=6, 7=7, 8=8, 9=9, A=10, B=11, C=12, D=13, E=14, and F=16. Hexadecimal numbers are proceeded by “0x” followed by a combination of the aforementioned numbers and letters. For example, if we wanted to represent the number 2024 in hex, we would write 0x7E8, which is equivalent to writing 7(16^2)+14(16^1)+8(16^0). We essentially multiply each letter or symbol value by 16 raised to the power of it's place. If we had a longer number, like 0xA61E, we could express this as 10(16^3)+6(16^2)+1(16^1)+14(16^0).

DATA TYPES IN C

COMPILE CODE

When in lab 46, you can compile by simply using “make”

PRINTF FORMAT SPECIFIERS

PROGRAM SPECIFICATIONS

Submit

 

SUBMISSION

To be successful in this project, the following criteria (or their equivalent) must be met:

  • Project must be submit on time, by the deadline.
    • Late submissions will lose 33% credit per day, with the submission window closing on the 3rd day following the deadline.
  • All code must compile cleanly (no warnings or errors)
    • Compile with the -Wall and –std=gnu18 compiler flags
    • all requested functionality must conform to stated requirements (either on this document or in a comment banner in source code files themselves).
  • Executed programs must display in a manner similar to provided output
    • output formatted, where applicable, must match that of project requirements
  • Processing must be correct based on input given and output requested
  • Output, if applicable, must be correct based on values input
  • Code must be nicely and consistently indented
  • Code must be consistently written, to strive for readability from having a consistent style throughout
  • Code must be commented
    • Any “to be implemented” comments MUST be removed
      • these “to be implemented” comments, if still present at evaluation time, will result in points being deducted.
      • Sufficient comments explaining the point of provided logic MUST be present
  • No global variables (without instructor approval), no goto statements, no calling of main()!
  • Track/version the source code in your lab46 semester repository
  • Submit a copy of your source code to me using the submit tool (make submit on lab46 will do this) by the deadline.

Submit Tool Usage

Let's say you have completed work on the project, and are ready to submit, you would do the following (assuming you have a program called uom0.c):

lab46:~/src/SEMESTER/DESIG/PROJECT$ make submit

You should get some sort of confirmation indicating successful submission if all went according to plan. If not, check for typos and or locational mismatches.

RUBRIC

I'll be evaluating the project based on the following criteria:

52:dtr0:final tally of results (52/52)
*:dtr0:used grabit to obtain project by the Sunday prior to duedate [13/13]
*:dtr0:clean compile, no compiler messages [13/13]
*:dtr0:program conforms to project specifications [13/13]
*:dtr0:code tracked in lab46 semester repo [13/13]

Pertaining to the collaborative authoring of project documentation

  • each class member is to participate in the contribution of relevant information and formatting of the documentation
    • minimal member contributions consist of:
      • near the class average edits (a value of at least four productive edits)
      • near the average class content change average (a value of at least 256 bytes (absolute value of data content change))
      • near the class content contribution average (a value of at least 1kiB)
      • no adding in one commit then later removing in its entirety for the sake of satisfying edit requirements
    • adding and formatting data in an organized fashion, aiming to create an informative and readable document that anyone in the class can reference
    • content contributions will be factored into a documentation coefficient, a value multiplied against your actual project submission to influence the end result:
      • no contributions, co-efficient is 0.50
      • less than minimum contributions is 0.75
      • met minimum contribution threshold is 1.00

Additionally

  • Solutions not abiding by spirit of project will be subject to a 50% overall deduction
  • Solutions not utilizing descriptive why and how comments will be subject to a 25% overall deduction
  • Solutions not utilizing indentation to promote scope and clarity or otherwise maintaining consistency in code style and presentation will be subject to a 25% overall deduction
  • Solutions not organized and easy to read (assume a terminal at least 90 characters wide, 40 characters tall) are subject to a 25% overall deduction
haas/fall2024/c4eng/projects/dtr0.txt · Last modified: 2024/08/26 14:19 by 127.0.0.1