From -4102952594703582060 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,25827c9ceb81badc X-Google-Attributes: gidf78e5,public From: herbs@cntc.com (Herb Sutter) Subject: Re: string/cow/algorithm Date: 1998/08/20 Message-ID: <35dc79ad.108635599@nr1.toronto.istar.net>#1/1 X-Deja-AN: 383097941 X-NNTP-Posting-Host: 209.89.87.103 Content-Transfer-Encoding: 7bit Approved: stephen.clamage@sun.com (comp.std.c++) References: <35D9AE1C.7553@pratique.fr> X-UID: 0000000001 X-Status: $$$T Content-Type: text/plain; charset=us-ascii Organization: iSTAR internet Incorporated Mime-Version: 1.0 Newsgroups: comp.std.c++ Originator: clamage@taumet Nathan Myers writes: > the reference-counted version is > *always* more efficient than the always-copying version. This is true for code built for single-threaded use only. The reference-counted version is almost always less efficient (usually by an order of magnitude or two, literally) in code built for possible multi-threaded use, even if a particular program that calls it happens to be single-threaded. If a string object can be shared across processes, then you could also replace "-threaded" with "-process" everywhere in the above paragraph. [I'm assuming you're talking about strings; I didn't see the original post, only a quoted version.] Herb --- Herb Sutter (mailto:herbs@cntc.com) Current Network Technologies Corp 2695 North Sheridan Way, Suite 150 www.cntc.com www.peerdirect.com Mississauga Ontario Canada L5K 2N6 [ 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 ]