From 2480201842003709227 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,64c04ae5e5b49e61 X-Google-Attributes: gidf78e5,public From: comeau@panix.com (Greg Comeau) Subject: Re: class-definition using a qualified-name Date: 2000/04/21 Message-ID: <8dlo52$5i0$1@panix.com>#1/1 X-Deja-AN: 613603662 Approved: Fergus Henderson , moderator of comp.std.c++ References: <38FD77E7.F3F90217@cc.u-szeged.hu> X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Complaints-To: abuse@demon.net X-Mail2News-Path: news.demon.net!mulga.cs.mu.oz.au X-Trace: mail2news.demon.co.uk 956242110 mail2news:17439 mail2news mail2news.demon.co.uk Organization: Comeau Computing; http://www.comeaucomputing.com X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) Reply-To: comeau@comeaucomputing.com Newsgroups: comp.std.c++ X-Newsposter: trn 4.0-test55 (26 Feb 97) In article <38FD77E7.F3F90217@cc.u-szeged.hu> Beszedes Arpad writes: >I cannot find anywhere in the standard if the following is legal or not: >class outer >{ >public: > class inner; >}; > >class other_class >{ > class outer::inner > { > public: > int i; > }; > // ... >}; >.... >I.e. can be a class defined outside of its "real" container scope >(namely in an another namespace- or class-scope)? Namespace yes, its class yes, other class no. >(Btw my compiler -- MSVC6 -- compiles the above code). Comeau C++ gives: line 9: error: class "outer::inner" cannot be defined in the current scope class outer::inner ^ which is backed up by 9.7p3: "If class X is defined in a namespace scope, a nested class Y may be declared in class X and later defined in the definition of class X or be later defined in a namespace scope enclosing the definition of class X." Since other_class is not a namespace scope or within outer, then defining outer::inner in other_class is an error. - Greg -- Comeau Computing, Producers of Comeau C/C++ 4.2.42 (4.2.43 BETA starting) Try Comeau C++ online at http://www.comeaucomputing.com/tryitout Email: comeau@comeaucomputing.com / WEB: http://www.comeaucomputing.com --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://reality.sgi.com/austern_mti/std-c++/faq.html ]