From 3216067946910662817 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,fb1a92fa405c930c X-Google-Attributes: gidf78e5,public From: comeau@panix.com (Greg Comeau) Subject: Re: nested functions Date: 1999/06/13 Message-ID: <7k0b01$nod$1@panix.com>#1/1 X-Deja-AN: 489156501 Approved: Valentin Bonnard References: <7jrqf5$op5$1@nnrp1.deja.com> <7jrv0r$dfq$1@engnews1.eng.sun.com> <081650426190c69CPIMSSMTPU07@email.msn.com> X-Original-Date: 13 Jun 1999 09:16:49 -0400 Organization: Comeau Computing; http://www.comeaucomputing.com X-Auth: PGPMoose V1.1 PGP comp.std.c++ iQBVAwUAN2P0MqwEuYhIxRhxAQHWvgH+MDZPJiKxQf3DYyH+yAlnZp0XoUYPOqWU Tus7wamC1ELJvDz1O8V+944DljgozY6ulX8lAEqDDLTrEYRozfL2tQ== =nOnk Reply-To: comeau@comeaucomputing.com Newsgroups: comp.std.c++ X-Newsposter: trn 4.0-test55 (26 Feb 97) In article <081650426190c69CPIMSSMTPU07@email.msn.com> "G.B." writes: > > >Steve Clamage wrote in message >news:7jrv0r$dfq$1@engnews1.eng.sun.com... >> >> Function f is not visible outide this translation unit, yet >> can be called from other translation units via pf. Varible >> k is not visible outside function foo, yet can be accessed >> even from other translation units via pi. >> >Ah, the quirks of C. I have better used the word accessible instead of >visible. Sorry, I'm just a software engineer so my terminology is not very >precise. >The difference between local and global fiunctions is that the first can >access local variables (including parent function parameters) in the scope >where they are defined. These local variables simply do not exist when you >leave the scope, so calling local function out of it parent's scope doesn't >make sense. scope is a syntactic thing. It doesn't apply to a running program in the same sense. So, when you say the local vars do not exist when you leave the scope, they will if the local function calls a different function, perhaps passing or having pointers to the local vars. - Greg -- Comeau Computing, 91-34 120th Street, Richmond Hill, NY, 11418-3214 Producers of Comeau C/C++ 4.2.38 -- New Release! We now do Windows too. Email: comeau@comeaucomputing.com / Voice:718-945-0009 / Fax:718-441-2310 *** 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 ]