Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!husc6!rutgers!att!ulysses!andante!alice!ark
From: ark@alice.UUCP (Andrew Koenig)
Newsgroups: comp.lang.c++
Subject: Re: derivation from structs
Message-ID: <9355@alice.UUCP>
Date: 14 May 89 15:02:55 GMT
References: <7103@saturn.ucsc.edu> <9353@alice.UUCP> <7138@saturn.ucsc.edu>
Organization: AT&T Bell Laboratories, Liberty Corner NJ
Lines: 42

In article <7138@saturn.ucsc.edu>, daniel@saturn.ucsc.edu (Daniel Edelson) writes:

-> So this means that given
-> 
-> 	class X { /* stuff */ };
-> 
-> saying
-> 
-> 	struct Y : X { /* more stuff */ };
-> 
-> is precisely equivalent to saying
-> 
-> 	struct Y : public X { /* more stuff */ };
-> 
-> and given
-> 
-> 	struct X { /* stuff */ };
-> 
-> saying
-> 
-> 	class Y : X { /* stuff */ }
-> 
-> is precisely equivalent to saying
-> 
-> 	class Y : private X { /* stuff */ }
-> 
-> Correct?

Correct, with one implementation note: if you say

	class Y : X { /* stuff */ };

cfront 2.0 will give you a warning.  Too many people are under
the misapprehension that it means the same as

	class Y : public X { /* stuff */ };

so we want to encourage people to say `public' or `private'
explicitly.
-- 
				--Andrew Koenig
				  ark@europa.att.com