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CS4700 Homework #6 Note, these exercises may be done in groups of one, two, or three.
 

Summary: CS4700 Homework #6
Note, these exercises may be done in groups of one, two, or three.
1) In a switch statement, would a standard jump table be an appropriate implementation
for the following distribution of case constants? If not, explain an alternative you
would consider.
a) Twenty cases close together in value (say a range of 50)
b) A thousand cases close together in value (say a range of 1050)
c) Twenty cases over a wide range of values (say a range of 1000).
d) A thousand cases over a wide range of values (say a range of 1,000,000).
2) Order of evaluation. While precedence and association controls the parse tree that is
formed, the order of evaluation within the tree might not be specified by the language
design. If there are no side-effects, the order of expression evaluation doesn't matter,
but with side effects, the results are different depending on the expression evaluation
order. Let the function Doit be defined as
function Doit( var K: integer) : integer // K is passed by reference
(Note that assigning something to the name of the function sets the
return value.)
begin
K :=K*4;
Doit := K;

  

Source: Allan, Vicki H. - Department of Computer Science, Utah State University

 

Collections: Computer Technologies and Information Sciences