CS201
Lab 3 - Simple C Functions

Objectives:

• Solve a problem using a C Functions, Top-Down Design philosophy and  proper Coding Conventions        .

Readings:

• Read Chapter 3 in the Hanly/Koffman text. Also read related lecture notes (Top-Down Design with Functions).

Deliverables: (DUE BY THE END OF THE LAB!)

• Submittal of your lab3.c and Makefile files.

TO DO (for today's lab)

• Design and Write a program to solve Programming Project #5 on page 142 of the Hanly/Koffman text. Use at least two functions wen creating your solution (one must be named: twoDecimalRnd, and another one: printMyResults)
• Use redirection to enter your positive number with a fractional part. Do not prompt for these values, just read them in from a data file using scanf.
• For your input, build a short data file (call it datain3) that includes only one float in the first line.
  Suppose you wanted to enter 1.449. You would build a file datain3 that had the following number in line one.
  1.449
  Make sure to call this file "datain3" and save it to your directory.
• A sample run of your program assuming "lab3" for the name of your run image would look like the following:
  $ lab3 < datain3
• A sample output would look like the following:
  bbb1.449 rounded =bbbb1.450
  (The b's are blanks)
• The automatic submittal script will expect your output to be formatted exactly as shown above.
• You do not need to submit your sample data file. I will provide a set of test data files for the automatic script to use to test your program.
• Make sure to comment your code properly! Including the functions!
• Follow proper Coding Conventions when programming.

LAB 3 ENRICHMENT

• Create a flowchart reflecting the algorithm you designed to complete the assignment.
• Find out what functions are available via math.h library.