Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!oresoft!dan
From: dan@oresoft.uu.net (Daniel Elbaum)
Newsgroups: comp.lang.c++
Subject: Re: Are Class Decl.'s Legal in Funcs ?
Message-ID: <667@oresoft.uu.net>
Date: 4 Apr 89 19:39:11 GMT
References: <890403-150348-4532@Xerox> <9418@claris.com>
Reply-To: dan@oresoft.uu.net (Daniel Elbaum)
Organization: Oregon Software, Portland, OR
Lines: 20

In article <9418@claris.com> hearn@claris.com (Bob Hearn) writes:
:From article <890403-150348-4532@Xerox>, by SJohnson.ElSegundo@XEROX.COM:
:- Is the following code legal ?
:-
:- <declaration of function inside class inside function>
:
:I don't know about classes nested in functions, but classes nested in
:classes are legal - except they don't mean what you think they do.  Their
:scope is global.  This is VERY ANNOYING.  The one thing I hate most about
:C is lack of nested scoping.

Declarations nested in class definitions are not global, but are limited
to the scope enclosing the class definition.  Since class definitions are
normally performed outside of any block, nested declarations tend to take
on global scope.

A declaration of a class in C++ is similar to a declaration of a struture
in C.  The template may be declared and used in any block, and the scope
of the template definition is the block within which it is defined.  The
same is true for any data type.  C certainly has nested scoping.