Re: feb 10 '99 midterm question 2

Ed Casas (edc@ece.ubc.ca) Sun, 22 Oct 2000 17:37:10 -0700 

Date: Sun, 22 Oct 2000 17:37:10 -0700
From: Ed Casas <edc@ece.ubc.ca>
Subject: Re: feb 10 '99 midterm question 2



> How does minchar(x,3) return 1?
> shouldn't n = 4. (ie doesn't s have 4 characters -
> 3,x,1 and 0)

If the function thinks n is the number of characters to be
tested, it can be passed a smaller value than the actual number
of characters in the array with no ``ill effects.''

> if char x[5] = "3x10" why doesn't minchar return 0?

minchar(x,4) would indeed return '0' (not 0).

> or if 0 in "3x10" is the 0 that shows that the array
> is finished, then shouldn't it be char x[4]?

The last character in the string above is stored as the ASCII
code for the character '0', not as the null character (the value
0) which terminates the string.

-- 
Ed Casas   edc@ece.ubc.ca   http://casas.ece.ubc.ca   +1 604 822-2592