Introduction to the Pascal Programming Language
© 1998 by Dr. Thomas W. MacFarland -- All Rights Reserved
Instructions: Review the following program and see if you can predict the outcome by completing a "pencil trace" of the code. Program output is provided at the end of this page. Compiler: The program was prepared using Standard Pascal on a UNIX-based host computer.
% cat PASCAL/intro_pencil-17.p
{ Introduction to the Pascal Programming Language
Dr. Thomas W. MacFarland
intro_pencil-17.p
}
{ The purpose of this program is to:
1. Demonstrate the curley brace symbols used to make comments
in a Pascal program.
2. Demonstrate the ( and * symbols which are also used to make
comments in a Pascal program, which was the norm before
modern keyboards included the curley brace symbols.
}
program Demonstrate_the_Use_of_Comments;
begin { Main program }
(* This comment is ignored by the Pascal compiler. *)
{ This comment is also ignored. }
writeln('Too much programming [hurts] {your} (*eyes*) ');
writeln('I am //told!');
end. (* This is the end of the main program *)
{ intro_pencil-17.p }
% pc PASCAL/intro_pencil-17.p
% a.out
Too much programming [hurts] {your} (*eyes*)
I am //told!