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From: billwolf%hazel.cs.clemson.edu@hubcap.clemson.edu (William Thomas Wolfe, 2847 )
Newsgroups: comp.lang.ada,comp.lang.c
Subject: Re: Invalid analogy
Message-ID: <8222@hubcap.clemson.edu>
Date: 3 Mar 90 21:11:54 GMT
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>From eaker@sunbelt.crd.ge.com (Charles E Eaker):
>>   [In C] similar flow-of-control constructs do not terminate in 
>>   similar ways.  If one is using the if statement, termination is
>>   automatic.  If one is using the switch statement, a break is required.  
> 
% [An invalid analogy is attempted:]
%    "LOOP" construct, which contained
%       a "CASE" statement, which contained 
%          an "IF" clause, which contained an
%             "EXIT," which was intended for
%          the "IF" clause, but instead broke from
%       the "LOOP" statement.

   Notice: "similar flow-of-control constructs".  Both the case and 
   the if statements execute different sections of code depending on
   the value of a controlling expression.  A loop is a flow-of-control
   construct, but not one which is similar to the if or case constructs,
   which are so closely related that one is a special case of the other. 

   This extreme similarity, unfortunately, does not extend to C's concept
   of how the two should be supported within the programming language. 


   Bill Wolfe, wtwolfe@hubcap.clemson.edu