CS/CE 218 Lab 2					5 September 1991

The report for this lab is due 6 September 1991 (tomorrow).
Your report should be produced by editing this file, filling in answers
to the questions below each question.
When you are done, make a printout of your report.

0. Make a copy of /home/cs218/public/homework/lab2.txt
   in your (home) directory.  Use emacs to read the file lab2.txt.
   (If you can see this sentence, you found it.)

1. (1 point) Each student in this class has a ``personal'' teaching assistant.
   Edit the file /home/cs218/public/ta-assignment.txt
   and find the line with your name.  What is the name of your TA?

2. (1 point) Change the headings above to look something like the following.
	CS/CE 218 		     6 September 1991
	Section 1		     TA: Jano
		     Lab Report 2
		    Ben Bittwiddle
   Be sure to use your own name, section, and TA!

3. (5 points)  Put the following text into a file called ``hello.c''.
   (It's fastest in emacs to visit ``hello.c'', then yank the following text
   into the buffer ``hello.c''.  If you type it, be sure to type it *exactly*
   as shown below.)

#include <stdio.h>

main(int argc, char * argv)
{
   printf("%c\n", "hello world!")
}

   a) Compile hello.c using ``gcc -g'' (you can do this in emacs by
      first ensuring that you're in C mode, then typing ``M-x compile''
      and when it prompts you for the ``Compile command'',
      deleting the default ``make -k'' and typing ``gcc -g hello.c''.)
      What is the output of the compilation?  (In emacs, you can yank
      the contents of the *compilation* buffer into your lab report.)

   b) Add a semicolon (;) where indicated by gcc.
      Then compile the program again.  If you have more than one error
      to correct, you've made a typing mistake (and aren't using emacs...).
      Ask a TA if you need help in finding the error.
      When you get the program to compile, run it
     (suspend emacs, then execute ``a.out'').  What is the output?

4.  (10 points) Run the program from part 3 under the debugger ``gdb''.
    (From emacs type ``M-x gdb'', and then when it prompts you with
    ``Run gdb on file: ~/'' add ``a.out'' to the file name, then type
    ``run'' followed by a carriage return.)  What output do you see?

5.  (extra credit only)  How do yo set a breakpoint in gdb?  (Read the info
    entry for gdb under emacs.)  Try it out on a.out.