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From: ForthNet@willett.pgh.pa.us (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: PUZZLES AND PROBLEMS
Message-ID: <1538.UUL1.3#5129@willett.pgh.pa.us>
Date: 16 Aug 90 11:47:41 GMT
Organization: String, Scotch tape, and Paperclips.  (in Pgh, PA)
Lines: 25

Category 3,  Topic 35
Message 135       Wed Aug 15, 1990
D.RUFFER [Dennis]            at 23:18 EDT
 
Re: GORDON GANDERTON

 > 3. Write a program that repeatedly calculates how many chars
 > separate two letters typed in by the user, until terminated with
 > ctlC. For instance there are 2 characters ('b' and 'c') between
 > 'a' and 'd'. Take advantage of the fact that the arithmetic
 > operators work on character variables just as well as they do on
 > numbers. Rgds.

I don't understand the question Gordon.  What letters are typed in by the
user, the 'a' and 'd' or the characters in between, and what gets terminated
by ctlC?  If I know what the deliminating characters are and I have gotten the
string into memory, then the problem is simply searching from the start of the
string for the left deliminator and from the end of the string for the right
one.  Then you simply subtract the addresses.  That part seems trivial, but
I'm confused about where the string and deliminators come from.

DaR
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