CS 223 - Spring 2017. 1/23

Welcome to CS 223!

Logical problem of the day

int main(void) {
  int ndigit[5] = { 0 };
  for (int i = 0; i <= 5; i++)
    printf("%d\n", ndigit[i]);
}

What is interesting (or disturbing) about the above code?

Lecture 3: Introduction to C: make and program structure

If you're thinking of taking CPSC 223, please do the following.

Complete the online student information sheet.
Sign up for a course account for CPSC 223 on the Zoo: Course account signup. Your course account should be created within one hour or so of signing up.
Start the reading assignment: [Old Reading Assignments]. (Actually, the reading assignments are in the homework, below).
New addition: C In a Nutshell, (2nd edition) Chapters 1-7.
Start the homework assignment: s17h1.v0.
Familiarize yourself with the Zoo computers by attending a (soon-to-be-scheduled) Zoo help session, or with classmates or on your own using How to Use the Computer Facilities or Zoo tutorial, Spring 2014 edition.

Administrivia

Office hours:

We have added the public tests for assignment 1. In addition, we have met ULAs and scheduled office hours. The office hours are Sun/Tue/Thu 8-11 PM at Hillhouse 17 Rm 111. Also, we will hold a tutorial to cover zoo and UNIX fundamentals from 7-8 PM this Sunday.

Lecture Starts Here

See /c/cs223/hw1. Specifically, check out the sample file /c/cs223/hw1/Total.c

more make

Here is a sample Makefile that demonstrates the basic functions of make.

The C Programming Language

Aspnes: C

1978: K&R
1988: ANSI (also in K&R 1988)
1999: C99 (ISO updates, C++ goodies)
2011: C11: more realistic version of C99 (which compiler writers largely ignored.)

For this class, you may use C99 per gcc.

gcc --std=c99
  or just:
c99
  most portable:
gcc -ansi -pedantic

C program structure

Aspnes: C Program Structure

Note: must declare a function before calling it.

Here is the source code: sumRange.c

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